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Issue 421: Updated to google gson 1.6, and patched their classes to support natural parsing of Map<String, Object>

This commit is contained in:
Adrian Cole 2010-12-06 21:32:34 +00:00
parent bf325b1126
commit 84b76c0606
23 changed files with 1239 additions and 1903 deletions
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2
core/pom.xml
View File

@ -101,7 +101,7 @@
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>1.5</version>
<version>1.6</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>

182
core/src/main/java/com/google/gson/JcloudsCompactFormatter.java
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@ -1,182 +0,0 @@
/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
/*
* Copyright (C) 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gson;
import java.io.IOException;
/**
* The only reason I am pasting this class and changing 2 lines is because the
* gson project uses abstract classes and final otherwise for every part one
* might want to extend. We simply need to control the formatting of json
* literals, and hopefully one day gson will allow us to subclass something.
*
* @author Adrian Cole
* @author Inderjeet Singh
*/
public class JcloudsCompactFormatter implements JsonFormatter {
static class FormattingVisitor implements JsonElementVisitor {
private final Appendable writer;
private final Escaper escaper;
private final boolean serializeNulls;
FormattingVisitor(Appendable writer, Escaper escaper, boolean serializeNulls) {
this.writer = writer;
this.escaper = escaper;
this.serializeNulls = serializeNulls;
}
public void visitLiteral(JsonLiteral primitive) throws IOException {
primitive.toString(writer, escaper);
}
public void visitPrimitive(JsonPrimitive primitive) throws IOException {
primitive.toString(writer, escaper);
}
public void visitNull() throws IOException {
writer.append("null");
}
public void startArray(JsonArray array) throws IOException {
writer.append('[');
}
public void visitArrayMember(JsonArray parent, JsonPrimitive member, boolean isFirst) throws IOException {
if (!isFirst) {
writer.append(',');
}
member.toString(writer, escaper);
}
public void visitArrayMember(JsonArray parent, JsonArray member, boolean isFirst) throws IOException {
if (!isFirst) {
writer.append(',');
}
}
public void visitArrayMember(JsonArray parent, JsonObject member, boolean isFirst) throws IOException {
if (!isFirst) {
writer.append(',');
}
}
public void visitNullArrayMember(JsonArray parent, boolean isFirst) throws IOException {
if (!isFirst) {
writer.append(',');
}
}
public void endArray(JsonArray array) throws IOException {
writer.append(']');
}
public void startObject(JsonObject object) throws IOException {
writer.append('{');
}
public void visitObjectMember(JsonObject parent, String memberName, JsonLiteral member, boolean isFirst)
throws IOException {
if (!isFirst) {
writer.append(',');
}
writer.append('"');
writer.append(memberName);
writer.append("\":");
member.toString(writer, escaper);
}
public void visitObjectMember(JsonObject parent, String memberName, JsonPrimitive member, boolean isFirst)
throws IOException {
if (!isFirst) {
writer.append(',');
}
writer.append('"');
writer.append(memberName);
writer.append("\":");
member.toString(writer, escaper);
}
public void visitObjectMember(JsonObject parent, String memberName, JsonArray member, boolean isFirst)
throws IOException {
if (!isFirst) {
writer.append(',');
}
writer.append('"');
writer.append(memberName);
writer.append("\":");
}
public void visitObjectMember(JsonObject parent, String memberName, JsonObject member, boolean isFirst)
throws IOException {
if (!isFirst) {
writer.append(',');
}
writer.append('"');
writer.append(memberName);
writer.append("\":");
}
public void visitNullObjectMember(JsonObject parent, String memberName, boolean isFirst) throws IOException {
if (serializeNulls) {
visitObjectMember(parent, memberName, (JsonObject) null, isFirst);
}
}
public void endObject(JsonObject object) throws IOException {
writer.append('}');
}
}
private final boolean escapeHtmlChars;
public JcloudsCompactFormatter() {
this(true);
}
JcloudsCompactFormatter(boolean escapeHtmlChars) {
this.escapeHtmlChars = escapeHtmlChars;
}
public void format(JsonElement root, Appendable writer, boolean serializeNulls) throws IOException {
if (root == null) {
return;
}
FormattingVisitor visitor = new FormattingVisitor(writer, new Escaper(escapeHtmlChars), serializeNulls);
JcloudsTreeNavigator navigator = new JcloudsTreeNavigator(visitor, serializeNulls);
navigator.navigate(root);
}
}

928
core/src/main/java/com/google/gson/JcloudsDefaultTypeAdapters.java
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@ -1,928 +0,0 @@
/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
/*
* Copyright (C) 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gson;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.sql.Time;
import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Collection;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.SortedSet;
import java.util.StringTokenizer;
import java.util.TreeSet;
import java.util.UUID;
import com.google.common.base.Function;
import com.google.common.collect.MapMaker;
/**
* List of all the default type adapters ({@link JsonSerializer}s, {@link JsonDeserializer}s, and
* {@link InstanceCreator}s.
*
* <h4>Note!</h4>
* changed to edit the default behaviour of enum parsing by Adrian Cole
*
* @author Inderjeet Singh
* @author Joel Leitch
*/
final class JcloudsDefaultTypeAdapters {
private static final DefaultDateTypeAdapter DATE_TYPE_ADAPTER = new DefaultDateTypeAdapter();
private static final DefaultJavaSqlDateTypeAdapter JAVA_SQL_DATE_TYPE_ADAPTER = new DefaultJavaSqlDateTypeAdapter();
private static final DefaultTimeTypeAdapter TIME_TYPE_ADAPTER = new DefaultTimeTypeAdapter();
private static final DefaultTimestampDeserializer TIMESTAMP_DESERIALIZER = new DefaultTimestampDeserializer();
@SuppressWarnings({ "rawtypes" })
private static final EnumTypeAdapter ENUM_TYPE_ADAPTER = new EnumTypeAdapter();
private static final UrlTypeAdapter URL_TYPE_ADAPTER = new UrlTypeAdapter();
private static final UriTypeAdapter URI_TYPE_ADAPTER = new UriTypeAdapter();
private static final UuidTypeAdapter UUUID_TYPE_ADAPTER = new UuidTypeAdapter();
private static final LocaleTypeAdapter LOCALE_TYPE_ADAPTER = new LocaleTypeAdapter();
private static final CollectionTypeAdapter COLLECTION_TYPE_ADAPTER = new CollectionTypeAdapter();
private static final MapTypeAdapter MAP_TYPE_ADAPTER = new MapTypeAdapter();
private static final BigDecimalTypeAdapter BIG_DECIMAL_TYPE_ADAPTER = new BigDecimalTypeAdapter();
private static final BigIntegerTypeAdapter BIG_INTEGER_TYPE_ADAPTER = new BigIntegerTypeAdapter();
private static final BooleanTypeAdapter BOOLEAN_TYPE_ADAPTER = new BooleanTypeAdapter();
private static final ByteTypeAdapter BYTE_TYPE_ADAPTER = new ByteTypeAdapter();
private static final CharacterTypeAdapter CHARACTER_TYPE_ADAPTER = new CharacterTypeAdapter();
private static final DoubleDeserializer DOUBLE_TYPE_ADAPTER = new DoubleDeserializer();
private static final FloatDeserializer FLOAT_TYPE_ADAPTER = new FloatDeserializer();
private static final IntegerTypeAdapter INTEGER_TYPE_ADAPTER = new IntegerTypeAdapter();
private static final LongDeserializer LONG_DESERIALIZER = new LongDeserializer();
private static final NumberTypeAdapter NUMBER_TYPE_ADAPTER = new NumberTypeAdapter();
private static final ShortTypeAdapter SHORT_TYPE_ADAPTER = new ShortTypeAdapter();
private static final StringTypeAdapter STRING_TYPE_ADAPTER = new StringTypeAdapter();
private static final PropertiesCreator PROPERTIES_CREATOR = new PropertiesCreator();
private static final TreeSetCreator TREE_SET_CREATOR = new TreeSetCreator();
private static final HashSetCreator HASH_SET_CREATOR = new HashSetCreator();
private static final GregorianCalendarTypeAdapter GREGORIAN_CALENDAR_TYPE_ADAPTER = new GregorianCalendarTypeAdapter();
// The constants DEFAULT_SERIALIZERS, DEFAULT_DESERIALIZERS, and DEFAULT_INSTANCE_CREATORS
// must be defined after the constants for the type adapters. Otherwise, the type adapter
// constants will appear as nulls.
private static final ParameterizedTypeHandlerMap<JsonSerializer<?>> DEFAULT_SERIALIZERS = createDefaultSerializers();
private static final ParameterizedTypeHandlerMap<JsonDeserializer<?>> DEFAULT_DESERIALIZERS = createDefaultDeserializers();
private static final ParameterizedTypeHandlerMap<InstanceCreator<?>> DEFAULT_INSTANCE_CREATORS = createDefaultInstanceCreators();
private static ParameterizedTypeHandlerMap<JsonSerializer<?>> createDefaultSerializers() {
ParameterizedTypeHandlerMap<JsonSerializer<?>> map = new ParameterizedTypeHandlerMap<JsonSerializer<?>>();
map.registerForTypeHierarchy(Enum.class, ENUM_TYPE_ADAPTER);
map.register(URL.class, URL_TYPE_ADAPTER);
map.register(URI.class, URI_TYPE_ADAPTER);
map.register(UUID.class, UUUID_TYPE_ADAPTER);
map.register(Locale.class, LOCALE_TYPE_ADAPTER);
map.registerForTypeHierarchy(Collection.class, COLLECTION_TYPE_ADAPTER);
map.registerForTypeHierarchy(Map.class, MAP_TYPE_ADAPTER);
map.register(Date.class, DATE_TYPE_ADAPTER);
map.register(java.sql.Date.class, JAVA_SQL_DATE_TYPE_ADAPTER);
map.register(Timestamp.class, DATE_TYPE_ADAPTER);
map.register(Time.class, TIME_TYPE_ADAPTER);
map.register(Calendar.class, GREGORIAN_CALENDAR_TYPE_ADAPTER);
map.register(GregorianCalendar.class, GREGORIAN_CALENDAR_TYPE_ADAPTER);
map.register(BigDecimal.class, BIG_DECIMAL_TYPE_ADAPTER);
map.register(BigInteger.class, BIG_INTEGER_TYPE_ADAPTER);
// Add primitive serializers
map.register(Boolean.class, BOOLEAN_TYPE_ADAPTER);
map.register(boolean.class, BOOLEAN_TYPE_ADAPTER);
map.register(Byte.class, BYTE_TYPE_ADAPTER);
map.register(byte.class, BYTE_TYPE_ADAPTER);
map.register(Character.class, CHARACTER_TYPE_ADAPTER);
map.register(char.class, CHARACTER_TYPE_ADAPTER);
map.register(Integer.class, INTEGER_TYPE_ADAPTER);
map.register(int.class, INTEGER_TYPE_ADAPTER);
map.register(Number.class, NUMBER_TYPE_ADAPTER);
map.register(Short.class, SHORT_TYPE_ADAPTER);
map.register(short.class, SHORT_TYPE_ADAPTER);
map.register(String.class, STRING_TYPE_ADAPTER);
map.makeUnmodifiable();
return map;
}
private static ParameterizedTypeHandlerMap<JsonDeserializer<?>> createDefaultDeserializers() {
ParameterizedTypeHandlerMap<JsonDeserializer<?>> map = new ParameterizedTypeHandlerMap<JsonDeserializer<?>>();
map.registerForTypeHierarchy(Enum.class, wrapDeserializer(ENUM_TYPE_ADAPTER));
map.register(URL.class, wrapDeserializer(URL_TYPE_ADAPTER));
map.register(URI.class, wrapDeserializer(URI_TYPE_ADAPTER));
map.register(UUID.class, wrapDeserializer(UUUID_TYPE_ADAPTER));
map.register(Locale.class, wrapDeserializer(LOCALE_TYPE_ADAPTER));
map.registerForTypeHierarchy(Collection.class, wrapDeserializer(COLLECTION_TYPE_ADAPTER));
map.registerForTypeHierarchy(Map.class, wrapDeserializer(MAP_TYPE_ADAPTER));
map.register(Date.class, wrapDeserializer(DATE_TYPE_ADAPTER));
map.register(java.sql.Date.class, wrapDeserializer(JAVA_SQL_DATE_TYPE_ADAPTER));
map.register(Timestamp.class, wrapDeserializer(TIMESTAMP_DESERIALIZER));
map.register(Time.class, wrapDeserializer(TIME_TYPE_ADAPTER));
map.register(Calendar.class, GREGORIAN_CALENDAR_TYPE_ADAPTER);
map.register(GregorianCalendar.class, GREGORIAN_CALENDAR_TYPE_ADAPTER);
map.register(BigDecimal.class, wrapDeserializer(BIG_DECIMAL_TYPE_ADAPTER));
map.register(BigInteger.class, wrapDeserializer(BIG_INTEGER_TYPE_ADAPTER));
// Add primitive deserializers
map.register(Boolean.class, wrapDeserializer(BOOLEAN_TYPE_ADAPTER));
map.register(boolean.class, wrapDeserializer(BOOLEAN_TYPE_ADAPTER));
map.register(Byte.class, wrapDeserializer(BYTE_TYPE_ADAPTER));
map.register(byte.class, wrapDeserializer(BYTE_TYPE_ADAPTER));
map.register(Character.class, wrapDeserializer(CHARACTER_TYPE_ADAPTER));
map.register(char.class, wrapDeserializer(CHARACTER_TYPE_ADAPTER));
map.register(Double.class, wrapDeserializer(DOUBLE_TYPE_ADAPTER));
map.register(double.class, wrapDeserializer(DOUBLE_TYPE_ADAPTER));
map.register(Float.class, wrapDeserializer(FLOAT_TYPE_ADAPTER));
map.register(float.class, wrapDeserializer(FLOAT_TYPE_ADAPTER));
map.register(Integer.class, wrapDeserializer(INTEGER_TYPE_ADAPTER));
map.register(int.class, wrapDeserializer(INTEGER_TYPE_ADAPTER));
map.register(Long.class, wrapDeserializer(LONG_DESERIALIZER));
map.register(long.class, wrapDeserializer(LONG_DESERIALIZER));
map.register(Number.class, wrapDeserializer(NUMBER_TYPE_ADAPTER));
map.register(Short.class, wrapDeserializer(SHORT_TYPE_ADAPTER));
map.register(short.class, wrapDeserializer(SHORT_TYPE_ADAPTER));
map.register(String.class, wrapDeserializer(STRING_TYPE_ADAPTER));
map.makeUnmodifiable();
return map;
}
private static ParameterizedTypeHandlerMap<InstanceCreator<?>> createDefaultInstanceCreators() {
ParameterizedTypeHandlerMap<InstanceCreator<?>> map = new ParameterizedTypeHandlerMap<InstanceCreator<?>>();
map.registerForTypeHierarchy(Map.class, MAP_TYPE_ADAPTER);
// Add Collection type instance creators
map.registerForTypeHierarchy(Collection.class, COLLECTION_TYPE_ADAPTER);
map.registerForTypeHierarchy(Set.class, HASH_SET_CREATOR);
map.registerForTypeHierarchy(SortedSet.class, TREE_SET_CREATOR);
map.register(Properties.class, PROPERTIES_CREATOR);
map.makeUnmodifiable();
return map;
}
@SuppressWarnings({ "unchecked", "rawtypes" })
private static JsonDeserializer<?> wrapDeserializer(JsonDeserializer<?> deserializer) {
return new JsonDeserializerExceptionWrapper(deserializer);
}
static ParameterizedTypeHandlerMap<JsonSerializer<?>> getDefaultSerializers() {
return getDefaultSerializers(false, LongSerializationPolicy.DEFAULT);
}
static ParameterizedTypeHandlerMap<JsonSerializer<?>> getDefaultSerializers(
boolean serializeSpecialFloatingPointValues, LongSerializationPolicy longSerializationPolicy) {
ParameterizedTypeHandlerMap<JsonSerializer<?>> serializers = new ParameterizedTypeHandlerMap<JsonSerializer<?>>();
// Double primitive
JcloudsDefaultTypeAdapters.DoubleSerializer doubleSerializer = new JcloudsDefaultTypeAdapters.DoubleSerializer(
serializeSpecialFloatingPointValues);
serializers.registerIfAbsent(Double.class, doubleSerializer);
serializers.registerIfAbsent(double.class, doubleSerializer);
// Float primitive
JcloudsDefaultTypeAdapters.FloatSerializer floatSerializer = new JcloudsDefaultTypeAdapters.FloatSerializer(
serializeSpecialFloatingPointValues);
serializers.registerIfAbsent(Float.class, floatSerializer);
serializers.registerIfAbsent(float.class, floatSerializer);
// Long primitive
JcloudsDefaultTypeAdapters.LongSerializer longSerializer = new JcloudsDefaultTypeAdapters.LongSerializer(
longSerializationPolicy);
serializers.registerIfAbsent(Long.class, longSerializer);
serializers.registerIfAbsent(long.class, longSerializer);
serializers.registerIfAbsent(DEFAULT_SERIALIZERS);
return serializers;
}
static ParameterizedTypeHandlerMap<JsonDeserializer<?>> getDefaultDeserializers() {
return DEFAULT_DESERIALIZERS;
}
static ParameterizedTypeHandlerMap<InstanceCreator<?>> getDefaultInstanceCreators() {
return DEFAULT_INSTANCE_CREATORS;
}
static class DefaultDateTypeAdapter implements JsonSerializer<Date>, JsonDeserializer<Date> {
private final DateFormat format;
DefaultDateTypeAdapter() {
this.format = DateFormat.getDateTimeInstance();
}
DefaultDateTypeAdapter(final String datePattern) {
this.format = new SimpleDateFormat(datePattern);
}
DefaultDateTypeAdapter(final int style) {
this.format = DateFormat.getDateInstance(style);
}
public DefaultDateTypeAdapter(final int dateStyle, final int timeStyle) {
this.format = DateFormat.getDateTimeInstance(dateStyle, timeStyle);
}
// These methods need to be synchronized since JDK DateFormat classes are not thread-safe
// See issue 162
public JsonElement serialize(Date src, Type typeOfSrc, JsonSerializationContext context) {
synchronized (format) {
String dateFormatAsString = format.format(src);
return new JsonPrimitive(dateFormatAsString);
}
}
public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
if (!(json instanceof JsonPrimitive)) {
throw new JsonParseException("The date should be a string value");
}
try {
synchronized (format) {
return format.parse(json.getAsString());
}
} catch (ParseException e) {
throw new JsonParseException(e);
}
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(DefaultDateTypeAdapter.class.getSimpleName());
sb.append('(').append(format.getClass().getSimpleName()).append(')');
return sb.toString();
}
}
static class DefaultJavaSqlDateTypeAdapter implements JsonSerializer<java.sql.Date>, JsonDeserializer<java.sql.Date> {
private final DateFormat format;
DefaultJavaSqlDateTypeAdapter() {
this.format = new SimpleDateFormat("MMM d, yyyy");
}
public JsonElement serialize(java.sql.Date src, Type typeOfSrc, JsonSerializationContext context) {
synchronized (format) {
String dateFormatAsString = format.format(src);
return new JsonPrimitive(dateFormatAsString);
}
}
public java.sql.Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
if (!(json instanceof JsonPrimitive)) {
throw new JsonParseException("The date should be a string value");
}
try {
synchronized (format) {
Date date = format.parse(json.getAsString());
return new java.sql.Date(date.getTime());
}
} catch (ParseException e) {
throw new JsonParseException(e);
}
}
}
static class DefaultTimestampDeserializer implements JsonDeserializer<Timestamp> {
public Timestamp deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
Date date = context.deserialize(json, Date.class);
return new Timestamp(date.getTime());
}
}
static class DefaultTimeTypeAdapter implements JsonSerializer<Time>, JsonDeserializer<Time> {
private final DateFormat format;
DefaultTimeTypeAdapter() {
this.format = new SimpleDateFormat("hh:mm:ss a");
}
public JsonElement serialize(Time src, Type typeOfSrc, JsonSerializationContext context) {
synchronized (format) {
String dateFormatAsString = format.format(src);
return new JsonPrimitive(dateFormatAsString);
}
}
public Time deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
if (!(json instanceof JsonPrimitive)) {
throw new JsonParseException("The date should be a string value");
}
try {
synchronized (format) {
Date date = format.parse(json.getAsString());
return new Time(date.getTime());
}
} catch (ParseException e) {
throw new JsonParseException(e);
}
}
}
private static class GregorianCalendarTypeAdapter implements JsonSerializer<GregorianCalendar>,
JsonDeserializer<GregorianCalendar> {
private static final String YEAR = "year";
private static final String MONTH = "month";
private static final String DAY_OF_MONTH = "dayOfMonth";
private static final String HOUR_OF_DAY = "hourOfDay";
private static final String MINUTE = "minute";
private static final String SECOND = "second";
public JsonElement serialize(GregorianCalendar src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject obj = new JsonObject();
obj.addProperty(YEAR, src.get(Calendar.YEAR));
obj.addProperty(MONTH, src.get(Calendar.MONTH));
obj.addProperty(DAY_OF_MONTH, src.get(Calendar.DAY_OF_MONTH));
obj.addProperty(HOUR_OF_DAY, src.get(Calendar.HOUR_OF_DAY));
obj.addProperty(MINUTE, src.get(Calendar.MINUTE));
obj.addProperty(SECOND, src.get(Calendar.SECOND));
return obj;
}
public GregorianCalendar deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
JsonObject obj = json.getAsJsonObject();
int year = obj.get(YEAR).getAsInt();
int month = obj.get(MONTH).getAsInt();
int dayOfMonth = obj.get(DAY_OF_MONTH).getAsInt();
int hourOfDay = obj.get(HOUR_OF_DAY).getAsInt();
int minute = obj.get(MINUTE).getAsInt();
int second = obj.get(SECOND).getAsInt();
return new GregorianCalendar(year, month, dayOfMonth, hourOfDay, minute, second);
}
@Override
public String toString() {
return GregorianCalendarTypeAdapter.class.getSimpleName();
}
}
@SuppressWarnings("unchecked")
private static class EnumTypeAdapter<T extends Enum<T>> implements JsonSerializer<T>, JsonDeserializer<T> {
public JsonElement serialize(T src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.name());
}
@SuppressWarnings("cast")
public T deserialize(JsonElement json, Type classOfT, JsonDeserializationContext context)
throws JsonParseException {
try {
return (T) Enum.valueOf((Class<T>) classOfT, json.getAsString());
} catch (IllegalArgumentException e) {
Method converter = classToConvert.get(classOfT);
if (converter != null)
try {
return (T) converter.invoke(null, json.getAsString());
} catch (Exception e1) {
throw e;
}
else
throw e;
}
}
private final static Map<Class<?>, Method> classToConvert = new MapMaker()
.makeComputingMap(new Function<Class<?>, Method>() {
@Override
public Method apply(Class<?> from) {
try {
Method method = from.getMethod("fromValue", String.class);
method.setAccessible(true);
return method;
} catch (Exception e) {
return null;
}
}
});
@Override
public String toString() {
return EnumTypeAdapter.class.getSimpleName();
}
}
private static class UrlTypeAdapter implements JsonSerializer<URL>, JsonDeserializer<URL> {
public JsonElement serialize(URL src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.toExternalForm());
}
public URL deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
try {
return new URL(json.getAsString());
} catch (MalformedURLException e) {
throw new JsonParseException(e);
}
}
@Override
public String toString() {
return UrlTypeAdapter.class.getSimpleName();
}
}
private static class UriTypeAdapter implements JsonSerializer<URI>, JsonDeserializer<URI> {
public JsonElement serialize(URI src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.toASCIIString());
}
public URI deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
try {
return new URI(json.getAsString());
} catch (URISyntaxException e) {
throw new JsonParseException(e);
}
}
@Override
public String toString() {
return UriTypeAdapter.class.getSimpleName();
}
}
private static class UuidTypeAdapter implements JsonSerializer<UUID>, JsonDeserializer<UUID> {
public JsonElement serialize(UUID src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.toString());
}
public UUID deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return UUID.fromString(json.getAsString());
}
@Override
public String toString() {
return UuidTypeAdapter.class.getSimpleName();
}
}
private static class LocaleTypeAdapter implements JsonSerializer<Locale>, JsonDeserializer<Locale> {
public JsonElement serialize(Locale src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.toString());
}
public Locale deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
String locale = json.getAsString();
StringTokenizer tokenizer = new StringTokenizer(locale, "_");
String language = null;
String country = null;
String variant = null;
if (tokenizer.hasMoreElements()) {
language = tokenizer.nextToken();
}
if (tokenizer.hasMoreElements()) {
country = tokenizer.nextToken();
}
if (tokenizer.hasMoreElements()) {
variant = tokenizer.nextToken();
}
if (country == null && variant == null) {
return new Locale(language);
} else if (variant == null) {
return new Locale(language, country);
} else {
return new Locale(language, country, variant);
}
}
@Override
public String toString() {
return LocaleTypeAdapter.class.getSimpleName();
}
}
@SuppressWarnings({ "unchecked", "rawtypes" })
private static class CollectionTypeAdapter implements JsonSerializer<Collection>, JsonDeserializer<Collection>,
InstanceCreator<Collection> {
public JsonElement serialize(Collection src, Type typeOfSrc, JsonSerializationContext context) {
if (src == null) {
return JsonNull.createJsonNull();
}
JsonArray array = new JsonArray();
Type childGenericType = null;
if (typeOfSrc instanceof ParameterizedType) {
childGenericType = new TypeInfoCollection(typeOfSrc).getElementType();
}
for (Object child : src) {
if (child == null) {
array.add(JsonNull.createJsonNull());
} else {
Type childType = (childGenericType == null || childGenericType == Object.class) ? child.getClass()
: childGenericType;
JsonElement element = context.serialize(child, childType);
array.add(element);
}
}
return array;
}
public Collection deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
if (json.isJsonNull()) {
return null;
}
// Use ObjectConstructor to create instance instead of hard-coding a specific type.
// This handles cases where users are using their own subclass of Collection.
Collection collection = constructCollectionType(typeOfT, context);
Type childType = new TypeInfoCollection(typeOfT).getElementType();
for (JsonElement childElement : json.getAsJsonArray()) {
if (childElement == null || childElement.isJsonNull()) {
collection.add(null);
} else {
Object value = context.deserialize(childElement, childType);
collection.add(value);
}
}
return collection;
}
private Collection constructCollectionType(Type collectionType, JsonDeserializationContext context) {
JsonDeserializationContextDefault contextImpl = (JsonDeserializationContextDefault) context;
ObjectConstructor objectConstructor = contextImpl.getObjectConstructor();
return (Collection) objectConstructor.construct(collectionType);
}
public Collection createInstance(Type type) {
return new LinkedList();
}
}
private static class PropertiesCreator implements InstanceCreator<Properties> {
public Properties createInstance(Type type) {
return new Properties();
}
}
@SuppressWarnings({ "unchecked", "rawtypes" })
static class MapTypeAdapter implements JsonSerializer<Map>, JsonDeserializer<Map>, InstanceCreator<Map> {
public JsonElement serialize(Map src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject map = new JsonObject();
Type childGenericType = null;
if (typeOfSrc instanceof ParameterizedType) {
childGenericType = new TypeInfoMap(typeOfSrc).getValueType();
}
for (Map.Entry entry : (Set<Map.Entry>) src.entrySet()) {
Object value = entry.getValue();
JsonElement valueElement;
if (value == null) {
valueElement = JsonNull.createJsonNull();
} else {
Type childType = (childGenericType == null) ? value.getClass() : childGenericType;
valueElement = context.serialize(value, childType);
}
map.add(String.valueOf(entry.getKey()), valueElement);
}
return map;
}
public Map deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
// Use ObjectConstructor to create instance instead of hard-coding a specific type.
// This handles cases where users are using their own subclass of Map.
Map<Object, Object> map = constructMapType(typeOfT, context);
TypeInfoMap mapTypeInfo = new TypeInfoMap(typeOfT);
for (Map.Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
Object key = context.deserialize(new JsonPrimitive(entry.getKey()), mapTypeInfo.getKeyType());
Object value = context.deserialize(entry.getValue(), mapTypeInfo.getValueType());
map.put(key, value);
}
return map;
}
private Map constructMapType(Type mapType, JsonDeserializationContext context) {
JsonDeserializationContextDefault contextImpl = (JsonDeserializationContextDefault) context;
ObjectConstructor objectConstructor = contextImpl.getObjectConstructor();
return (Map) objectConstructor.construct(mapType);
}
public Map createInstance(Type type) {
return new LinkedHashMap();
}
@Override
public String toString() {
return MapTypeAdapter.class.getSimpleName();
}
}
private static class BigDecimalTypeAdapter implements JsonSerializer<BigDecimal>, JsonDeserializer<BigDecimal> {
public JsonElement serialize(BigDecimal src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public BigDecimal deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsBigDecimal();
}
@Override
public String toString() {
return BigDecimalTypeAdapter.class.getSimpleName();
}
}
private static class BigIntegerTypeAdapter implements JsonSerializer<BigInteger>, JsonDeserializer<BigInteger> {
public JsonElement serialize(BigInteger src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public BigInteger deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsBigInteger();
}
@Override
public String toString() {
return BigIntegerTypeAdapter.class.getSimpleName();
}
}
private static class NumberTypeAdapter implements JsonSerializer<Number>, JsonDeserializer<Number> {
public JsonElement serialize(Number src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public Number deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsNumber();
}
@Override
public String toString() {
return NumberTypeAdapter.class.getSimpleName();
}
}
private static class LongSerializer implements JsonSerializer<Long> {
private final LongSerializationPolicy longSerializationPolicy;
private LongSerializer(LongSerializationPolicy longSerializationPolicy) {
this.longSerializationPolicy = longSerializationPolicy;
}
public JsonElement serialize(Long src, Type typeOfSrc, JsonSerializationContext context) {
return longSerializationPolicy.serialize(src);
}
@Override
public String toString() {
return LongSerializer.class.getSimpleName();
}
}
private static class LongDeserializer implements JsonDeserializer<Long> {
public Long deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsLong();
}
@Override
public String toString() {
return LongDeserializer.class.getSimpleName();
}
}
private static class IntegerTypeAdapter implements JsonSerializer<Integer>, JsonDeserializer<Integer> {
public JsonElement serialize(Integer src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public Integer deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsInt();
}
@Override
public String toString() {
return IntegerTypeAdapter.class.getSimpleName();
}
}
private static class ShortTypeAdapter implements JsonSerializer<Short>, JsonDeserializer<Short> {
public JsonElement serialize(Short src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public Short deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsShort();
}
@Override
public String toString() {
return ShortTypeAdapter.class.getSimpleName();
}
}
private static class ByteTypeAdapter implements JsonSerializer<Byte>, JsonDeserializer<Byte> {
public JsonElement serialize(Byte src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public Byte deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsByte();
}
@Override
public String toString() {
return ByteTypeAdapter.class.getSimpleName();
}
}
static class FloatSerializer implements JsonSerializer<Float> {
private final boolean serializeSpecialFloatingPointValues;
FloatSerializer(boolean serializeSpecialDoubleValues) {
this.serializeSpecialFloatingPointValues = serializeSpecialDoubleValues;
}
public JsonElement serialize(Float src, Type typeOfSrc, JsonSerializationContext context) {
if (!serializeSpecialFloatingPointValues) {
if (Float.isNaN(src) || Float.isInfinite(src)) {
throw new IllegalArgumentException(src
+ " is not a valid float value as per JSON specification. To override this"
+ " behavior, use GsonBuilder.serializeSpecialFloatingPointValues() method.");
}
}
return new JsonPrimitive(src);
}
}
private static class FloatDeserializer implements JsonDeserializer<Float> {
public Float deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsFloat();
}
@Override
public String toString() {
return FloatDeserializer.class.getSimpleName();
}
}
static class DoubleSerializer implements JsonSerializer<Double> {
private final boolean serializeSpecialFloatingPointValues;
DoubleSerializer(boolean serializeSpecialDoubleValues) {
this.serializeSpecialFloatingPointValues = serializeSpecialDoubleValues;
}
public JsonElement serialize(Double src, Type typeOfSrc, JsonSerializationContext context) {
if (!serializeSpecialFloatingPointValues) {
if (Double.isNaN(src) || Double.isInfinite(src)) {
throw new IllegalArgumentException(src
+ " is not a valid double value as per JSON specification. To override this"
+ " behavior, use GsonBuilder.serializeSpecialDoubleValues() method.");
}
}
return new JsonPrimitive(src);
}
}
private static class DoubleDeserializer implements JsonDeserializer<Double> {
public Double deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsDouble();
}
@Override
public String toString() {
return DoubleDeserializer.class.getSimpleName();
}
}
private static class CharacterTypeAdapter implements JsonSerializer<Character>, JsonDeserializer<Character> {
public JsonElement serialize(Character src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public Character deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsCharacter();
}
@Override
public String toString() {
return CharacterTypeAdapter.class.getSimpleName();
}
}
private static class StringTypeAdapter implements JsonSerializer<String>, JsonDeserializer<String> {
public JsonElement serialize(String src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public String deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsString();
}
@Override
public String toString() {
return StringTypeAdapter.class.getSimpleName();
}
}
private static class BooleanTypeAdapter implements JsonSerializer<Boolean>, JsonDeserializer<Boolean> {
public JsonElement serialize(Boolean src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src);
}
public Boolean deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return json.getAsBoolean();
}
@Override
public String toString() {
return BooleanTypeAdapter.class.getSimpleName();
}
}
private static class TreeSetCreator implements InstanceCreator<TreeSet<?>> {
public TreeSet<?> createInstance(Type type) {
return new TreeSet<Object>();
}
@Override
public String toString() {
return TreeSetCreator.class.getSimpleName();
}
}
private static class HashSetCreator implements InstanceCreator<HashSet<?>> {
public HashSet<?> createInstance(Type type) {
return new HashSet<Object>();
}
@Override
public String toString() {
return HashSetCreator.class.getSimpleName();
}
}
}

591
core/src/main/java/com/google/gson/JcloudsGsonBuilder.java
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@ -1,591 +0,0 @@
/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
/*
* Copyright (C) 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gson;
import java.lang.reflect.Type;
import java.text.DateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import com.google.gson.JcloudsDefaultTypeAdapters.DefaultDateTypeAdapter;
/**
* <p>Use this builder to construct a {@link Gson} instance when you need to set configuration
* options other than the default. For {@link Gson} with default configuration, it is simpler to
* use {@code new Gson()}. {@code JcloudsGsonBuilder} is best used by creating it, and then invoking its
* various configuration methods, and finally calling create.</p>
*
* <p>The following is an example shows how to use the {@code JcloudsGsonBuilder} to construct a Gson
* instance:
*
* <pre>
* Gson gson = new JcloudsGsonBuilder()
* .registerTypeAdapter(Id.class, new IdTypeAdapter())
* .serializeNulls()
* .setDateFormat(DateFormat.LONG)
* .setFieldNamingPolicy(FieldNamingPolicy.UPPER_CAMEL_CASE)
* .setPrettyPrinting()
* .setVersion(1.0)
* .create();
* </pre></p>
*
* <p>NOTE: the order of invocation of configuration methods does not matter.</p>
*
* @author Inderjeet Singh
* @author Joel Leitch
*/
public final class JcloudsGsonBuilder {
private static final InnerClassExclusionStrategy innerClassExclusionStrategy =
new InnerClassExclusionStrategy();
private static final ExposeAnnotationSerializationExclusionStrategy
exposeAnnotationSerializationExclusionStrategy =
new ExposeAnnotationSerializationExclusionStrategy();
private static final ExposeAnnotationDeserializationExclusionStrategy
exposeAnnotationDeserializationExclusionStrategy =
new ExposeAnnotationDeserializationExclusionStrategy();
private final Collection<ExclusionStrategy> exclusionStrategies =
new HashSet<ExclusionStrategy>();
private double ignoreVersionsAfter;
private ModifierBasedExclusionStrategy modifierBasedExclusionStrategy;
private boolean serializeInnerClasses;
private boolean excludeFieldsWithoutExposeAnnotation;
private LongSerializationPolicy longSerializationPolicy;
private FieldNamingStrategy2 fieldNamingPolicy;
private final ParameterizedTypeHandlerMap<InstanceCreator<?>> instanceCreators;
private final ParameterizedTypeHandlerMap<JsonSerializer<?>> serializers;
private final ParameterizedTypeHandlerMap<JsonDeserializer<?>> deserializers;
private boolean serializeNulls;
private String datePattern;
private int dateStyle;
private int timeStyle;
private boolean serializeSpecialFloatingPointValues;
private boolean escapeHtmlChars;
private boolean prettyPrinting;
private boolean generateNonExecutableJson;
/**
* Creates a JcloudsGsonBuilder instance that can be used to build Gson with various configuration
* settings. JcloudsGsonBuilder follows the builder pattern, and it is typically used by first
* invoking various configuration methods to set desired options, and finally calling
* {@link #create()}.
*/
public JcloudsGsonBuilder() {
// add default exclusion strategies
exclusionStrategies.add(Gson.DEFAULT_ANON_LOCAL_CLASS_EXCLUSION_STRATEGY);
exclusionStrategies.add(Gson.DEFAULT_SYNTHETIC_FIELD_EXCLUSION_STRATEGY);
// setup default values
ignoreVersionsAfter = VersionConstants.IGNORE_VERSIONS;
serializeInnerClasses = true;
prettyPrinting = false;
escapeHtmlChars = true;
modifierBasedExclusionStrategy = Gson.DEFAULT_MODIFIER_BASED_EXCLUSION_STRATEGY;
excludeFieldsWithoutExposeAnnotation = false;
longSerializationPolicy = LongSerializationPolicy.DEFAULT;
fieldNamingPolicy = Gson.DEFAULT_NAMING_POLICY;
instanceCreators = new ParameterizedTypeHandlerMap<InstanceCreator<?>>();
serializers = new ParameterizedTypeHandlerMap<JsonSerializer<?>>();
deserializers = new ParameterizedTypeHandlerMap<JsonDeserializer<?>>();
serializeNulls = false;
dateStyle = DateFormat.DEFAULT;
timeStyle = DateFormat.DEFAULT;
serializeSpecialFloatingPointValues = false;
generateNonExecutableJson = false;
}
/**
* Configures Gson to enable versioning support.
*
* @param ignoreVersionsAfter any field or type marked with a version higher than this value
* are ignored during serialization or deserialization.
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
public JcloudsGsonBuilder setVersion(double ignoreVersionsAfter) {
this.ignoreVersionsAfter = ignoreVersionsAfter;
return this;
}
/**
* Configures Gson to excludes all class fields that have the specified modifiers. By default,
* Gson will exclude all fields marked transient or static. This method will override that
* behavior.
*
* @param modifiers the field modifiers. You must use the modifiers specified in the
* {@link java.lang.reflect.Modifier} class. For example,
* {@link java.lang.reflect.Modifier#TRANSIENT},
* {@link java.lang.reflect.Modifier#STATIC}.
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
public JcloudsGsonBuilder excludeFieldsWithModifiers(int... modifiers) {
modifierBasedExclusionStrategy = new ModifierBasedExclusionStrategy(modifiers);
return this;
}
/**
* Makes the output JSON non-executable in Javascript by prefixing the generated JSON with some
* special text. This prevents attacks from third-party sites through script sourcing. See
* <a href="http://code.google.com/p/google-gson/issues/detail?id=42">Gson Issue 42</a>
* for details.
*
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.3
*/
public JcloudsGsonBuilder generateNonExecutableJson() {
this.generateNonExecutableJson = true;
return this;
}
/**
* Configures Gson to exclude all fields from consideration for serialization or deserialization
* that do not have the {@link com.google.gson.annotations.Expose} annotation.
*
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
public JcloudsGsonBuilder excludeFieldsWithoutExposeAnnotation() {
excludeFieldsWithoutExposeAnnotation = true;
return this;
}
/**
* Configure Gson to serialize null fields. By default, Gson omits all fields that are null
* during serialization.
*
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.2
*/
public JcloudsGsonBuilder serializeNulls() {
this.serializeNulls = true;
return this;
}
/**
* Configures Gson to exclude inner classes during serialization.
*
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.3
*/
public JcloudsGsonBuilder disableInnerClassSerialization() {
serializeInnerClasses = false;
return this;
}
/**
* Configures Gson to apply a specific serialization policy for {@code Long} and {@code long}
* objects.
*
* @param serializationPolicy the particular policy to use for serializing longs.
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.3
*/
public JcloudsGsonBuilder setLongSerializationPolicy(LongSerializationPolicy serializationPolicy) {
this.longSerializationPolicy = serializationPolicy;
return this;
}
/**
* Configures Gson to apply a specific naming policy to an object's field during serialization
* and deserialization.
*
* @param namingConvention the JSON field naming convention to use for serialization and
* deserialization.
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
public JcloudsGsonBuilder setFieldNamingPolicy(FieldNamingPolicy namingConvention) {
return setFieldNamingStrategy(namingConvention.getFieldNamingPolicy());
}
/**
* Configures Gson to apply a specific naming policy strategy to an object's field during
* serialization and deserialization.
*
* @param fieldNamingStrategy the actual naming strategy to apply to the fields
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.3
*/
public JcloudsGsonBuilder setFieldNamingStrategy(FieldNamingStrategy fieldNamingStrategy) {
return setFieldNamingStrategy(new FieldNamingStrategy2Adapter(fieldNamingStrategy));
}
/**
* Configures Gson to apply a specific naming policy strategy to an object's field during
* serialization and deserialization.
*
* @param fieldNamingStrategy the actual naming strategy to apply to the fields
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
JcloudsGsonBuilder setFieldNamingStrategy(FieldNamingStrategy2 fieldNamingStrategy) {
this.fieldNamingPolicy =
new SerializedNameAnnotationInterceptingNamingPolicy(fieldNamingStrategy);
return this;
}
/**
* Configures Gson to apply a set of exclusion strategies during both serialization and
* deserialization. Each of the {@code strategies} will be applied as a disjunction rule.
* This means that if one of the {@code strategies} suggests that a field (or class) should be
* skipped then that field (or object) is skipped during serializaiton/deserialization.
*
* @param strategies the set of strategy object to apply during object (de)serialization.
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.4
*/
public JcloudsGsonBuilder setExclusionStrategies(ExclusionStrategy... strategies) {
for (ExclusionStrategy strategy : strategies) {
exclusionStrategies.add(strategy);
}
return this;
}
/**
* Configures Gson to output Json that fits in a page for pretty printing. This option only
* affects Json serialization.
*
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
public JcloudsGsonBuilder setPrettyPrinting() {
prettyPrinting = true;
return this;
}
/**
* By default, Gson escapes HTML characters such as &lt; &gt; etc. Use this option to configure
* Gson to pass-through HTML characters as is.
*
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.3
*/
public JcloudsGsonBuilder disableHtmlEscaping() {
this.escapeHtmlChars = false;
return this;
}
/**
* Configures Gson to serialize {@code Date} objects according to the pattern provided. You can
* call this method or {@link #setDateFormat(int)} multiple times, but only the last invocation
* will be used to decide the serialization format.
*
* <p>Note that this pattern must abide by the convention provided by {@code SimpleDateFormat}
* class. See the documentation in {@link java.text.SimpleDateFormat} for more information on
* valid date and time patterns.</p>
*
* @param pattern the pattern that dates will be serialized/deserialized to/from
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.2
*/
public JcloudsGsonBuilder setDateFormat(String pattern) {
// TODO(Joel): Make this fail fast if it is an invalid date format
this.datePattern = pattern;
return this;
}
/**
* Configures Gson to to serialize {@code Date} objects according to the style value provided.
* You can call this method or {@link #setDateFormat(String)} multiple times, but only the last
* invocation will be used to decide the serialization format.
*
* <p>Note that this style value should be one of the predefined constants in the
* {@code DateFormat} class. See the documentation in {@link java.text.DateFormat} for more
* information on the valid style constants.</p>
*
* @param style the predefined date style that date objects will be serialized/deserialized
* to/from
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.2
*/
public JcloudsGsonBuilder setDateFormat(int style) {
this.dateStyle = style;
this.datePattern = null;
return this;
}
/**
* Configures Gson to to serialize {@code Date} objects according to the style value provided.
* You can call this method or {@link #setDateFormat(String)} multiple times, but only the last
* invocation will be used to decide the serialization format.
*
* <p>Note that this style value should be one of the predefined constants in the
* {@code DateFormat} class. See the documentation in {@link java.text.DateFormat} for more
* information on the valid style constants.</p>
*
* @param dateStyle the predefined date style that date objects will be serialized/deserialized
* to/from
* @param timeStyle the predefined style for the time portion of the date objects
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.2
*/
public JcloudsGsonBuilder setDateFormat(int dateStyle, int timeStyle) {
this.dateStyle = dateStyle;
this.timeStyle = timeStyle;
this.datePattern = null;
return this;
}
/**
* Configures Gson for custom serialization or deserialization. This method combines the
* registration of an {@link InstanceCreator}, {@link JsonSerializer}, and a
* {@link JsonDeserializer}. It is best used when a single object {@code typeAdapter} implements
* all the required interfaces for custom serialization with Gson. If an instance creator,
* serializer or deserializer was previously registered for the specified {@code type}, it is
* overwritten.
*
* @param type the type definition for the type adapter being registered
* @param typeAdapter This object must implement at least one of the {@link InstanceCreator},
* {@link JsonSerializer}, and a {@link JsonDeserializer} interfaces.
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
public JcloudsGsonBuilder registerTypeAdapter(Type type, Object typeAdapter) {
Preconditions.checkArgument(typeAdapter instanceof JsonSerializer<?>
|| typeAdapter instanceof JsonDeserializer<?> || typeAdapter instanceof InstanceCreator<?>);
if (typeAdapter instanceof InstanceCreator<?>) {
registerInstanceCreator(type, (InstanceCreator<?>) typeAdapter);
}
if (typeAdapter instanceof JsonSerializer<?>) {
registerSerializer(type, (JsonSerializer<?>) typeAdapter);
}
if (typeAdapter instanceof JsonDeserializer<?>) {
registerDeserializer(type, (JsonDeserializer<?>) typeAdapter);
}
return this;
}
/**
* Configures Gson to use a custom {@link InstanceCreator} for the specified type. If an instance
* creator was previously registered for the specified class, it is overwritten. Since this method
* takes a type instead of a Class object, it can be used to register a specific handler for a
* generic type corresponding to a raw type.
*
* @param <T> the type for which instance creator is being registered
* @param typeOfT The Type definition for T
* @param instanceCreator the instance creator for T
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
private <T> JcloudsGsonBuilder registerInstanceCreator(Type typeOfT,
InstanceCreator<? extends T> instanceCreator) {
instanceCreators.register(typeOfT, instanceCreator);
return this;
}
/**
* Configures Gson to use a custom JSON serializer for the specified type. You should use this
* method if you want to register different serializers for different generic types corresponding
* to a raw type.
*
* @param <T> the type for which the serializer is being registered
* @param typeOfT The type definition for T
* @param serializer the custom serializer
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
private <T> JcloudsGsonBuilder registerSerializer(Type typeOfT, final JsonSerializer<T> serializer) {
serializers.register(typeOfT, serializer);
return this;
}
/**
* Configures Gson to use a custom JSON deserializer for the specified type. You should use this
* method if you want to register different deserializers for different generic types
* corresponding to a raw type.
*
* @param <T> the type for which the deserializer is being registered
* @param typeOfT The type definition for T
* @param deserializer the custom deserializer
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
*/
private <T> JcloudsGsonBuilder registerDeserializer(Type typeOfT, JsonDeserializer<T> deserializer) {
deserializers.register(typeOfT, new JsonDeserializerExceptionWrapper<T>(deserializer));
return this;
}
/**
* Configures Gson for custom serialization or deserialization for an inheritance type hierarchy.
* This method combines the registration of an {@link InstanceCreator}, {@link JsonSerializer},
* and a {@link JsonDeserializer}. It is best used when a single object {@code typeAdapter}
* implements all the required interfaces for custom serialization with Gson.
* If an instance creator, serializer or deserializer was previously registered for the specified
* type hierarchy, it is overwritten. If an instance creator, serializer or deserializer is
* registered for a specific type in the type hierarchy, it will be invoked instead of the one
* registered for the type hierarchy.
*
* @param baseType the class definition for the type adapter being registered for the base class
* or interface
* @param typeAdapter This object must implement at least one of the {@link InstanceCreator},
* {@link JsonSerializer}, and a {@link JsonDeserializer} interfaces.
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.5
*/
JcloudsGsonBuilder registerTypeHierarchyAdapter(Class<?> baseType, Object typeAdapter) {
Preconditions.checkArgument(typeAdapter instanceof JsonSerializer<?>
|| typeAdapter instanceof JsonDeserializer<?> || typeAdapter instanceof InstanceCreator<?>);
if (typeAdapter instanceof InstanceCreator<?>) {
registerInstanceCreatorForTypeHierarchy(baseType, (InstanceCreator<?>) typeAdapter);
}
if (typeAdapter instanceof JsonSerializer<?>) {
registerSerializerForTypeHierarchy(baseType, (JsonSerializer<?>) typeAdapter);
}
if (typeAdapter instanceof JsonDeserializer<?>) {
registerDeserializerForTypeHierarchy(baseType, (JsonDeserializer<?>) typeAdapter);
}
return this;
}
private <T> JcloudsGsonBuilder registerInstanceCreatorForTypeHierarchy(Class<?> classOfT,
InstanceCreator<? extends T> instanceCreator) {
instanceCreators.registerForTypeHierarchy(classOfT, instanceCreator);
return this;
}
private <T> JcloudsGsonBuilder registerSerializerForTypeHierarchy(Class<?> classOfT,
final JsonSerializer<T> serializer) {
serializers.registerForTypeHierarchy(classOfT, serializer);
return this;
}
private <T> JcloudsGsonBuilder registerDeserializerForTypeHierarchy(Class<?> classOfT,
JsonDeserializer<T> deserializer) {
deserializers.registerForTypeHierarchy(classOfT,
new JsonDeserializerExceptionWrapper<T>(deserializer));
return this;
}
/**
* Section 2.4 of <a href="http://www.ietf.org/rfc/rfc4627.txt">JSON specification</a> disallows
* special double values (NaN, Infinity, -Infinity). However,
* <a href="http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf">Javascript
* specification</a> (see section 4.3.20, 4.3.22, 4.3.23) allows these values as valid Javascript
* values. Moreover, most JavaScript engines will accept these special values in JSON without
* problem. So, at a practical level, it makes sense to accept these values as valid JSON even
* though JSON specification disallows them.
*
* <p>Gson always accepts these special values during deserialization. However, it outputs
* strictly compliant JSON. Hence, if it encounters a float value {@link Float#NaN},
* {@link Float#POSITIVE_INFINITY}, {@link Float#NEGATIVE_INFINITY}, or a double value
* {@link Double#NaN}, {@link Double#POSITIVE_INFINITY}, {@link Double#NEGATIVE_INFINITY}, it
* will throw an {@link IllegalArgumentException}. This method provides a way to override the
* default behavior when you know that the JSON receiver will be able to handle these special
* values.
*
* @return a reference to this {@code JcloudsGsonBuilder} object to fulfill the "Builder" pattern
* @since 1.3
*/
public JcloudsGsonBuilder serializeSpecialFloatingPointValues() {
this.serializeSpecialFloatingPointValues = true;
return this;
}
/**
* Creates a {@link Gson} instance based on the current configuration. This method is free of
* side-effects to this {@code JcloudsGsonBuilder} instance and hence can be called multiple times.
*
* @return an instance of Gson configured with the options currently set in this builder
*/
public Gson create() {
List<ExclusionStrategy> serializationStrategies =
new LinkedList<ExclusionStrategy>(exclusionStrategies);
List<ExclusionStrategy> deserializationStrategies =
new LinkedList<ExclusionStrategy>(exclusionStrategies);
serializationStrategies.add(modifierBasedExclusionStrategy);
deserializationStrategies.add(modifierBasedExclusionStrategy);
if (!serializeInnerClasses) {
serializationStrategies.add(innerClassExclusionStrategy);
deserializationStrategies.add(innerClassExclusionStrategy);
}
if (ignoreVersionsAfter != VersionConstants.IGNORE_VERSIONS) {
serializationStrategies.add(new VersionExclusionStrategy(ignoreVersionsAfter));
deserializationStrategies.add(new VersionExclusionStrategy(ignoreVersionsAfter));
}
if (excludeFieldsWithoutExposeAnnotation) {
serializationStrategies.add(exposeAnnotationSerializationExclusionStrategy);
deserializationStrategies.add(exposeAnnotationDeserializationExclusionStrategy);
}
ExclusionStrategy serializationExclusionStrategy =
new DisjunctionExclusionStrategy(serializationStrategies);
ExclusionStrategy deserializationExclusionStrategy =
new DisjunctionExclusionStrategy(deserializationStrategies);
ParameterizedTypeHandlerMap<JsonSerializer<?>> customSerializers = serializers.copyOf();
ParameterizedTypeHandlerMap<JsonDeserializer<?>> customDeserializers = deserializers.copyOf();
addTypeAdaptersForDate(datePattern, dateStyle, timeStyle, customSerializers,
customDeserializers);
customSerializers.registerIfAbsent(JcloudsDefaultTypeAdapters.getDefaultSerializers(
serializeSpecialFloatingPointValues, longSerializationPolicy));
customDeserializers.registerIfAbsent(JcloudsDefaultTypeAdapters.getDefaultDeserializers());
ParameterizedTypeHandlerMap<InstanceCreator<?>> customInstanceCreators =
instanceCreators.copyOf();
customInstanceCreators.registerIfAbsent(JcloudsDefaultTypeAdapters.getDefaultInstanceCreators());
customSerializers.makeUnmodifiable();
customDeserializers.makeUnmodifiable();
instanceCreators.makeUnmodifiable();
MappedObjectConstructor objConstructor = new MappedObjectConstructor(customInstanceCreators);
JsonFormatter formatter = prettyPrinting ?
new JsonPrintFormatter(escapeHtmlChars) : new JsonCompactFormatter(escapeHtmlChars);
Gson gson = new Gson(serializationExclusionStrategy, deserializationExclusionStrategy,
fieldNamingPolicy, objConstructor, formatter, serializeNulls, customSerializers,
customDeserializers, generateNonExecutableJson);
return gson;
}
private static void addTypeAdaptersForDate(String datePattern, int dateStyle, int timeStyle,
ParameterizedTypeHandlerMap<JsonSerializer<?>> serializers,
ParameterizedTypeHandlerMap<JsonDeserializer<?>> deserializers) {
DefaultDateTypeAdapter dateTypeAdapter = null;
if (datePattern != null && !"".equals(datePattern.trim())) {
dateTypeAdapter = new DefaultDateTypeAdapter(datePattern);
} else if (dateStyle != DateFormat.DEFAULT && timeStyle != DateFormat.DEFAULT) {
dateTypeAdapter = new DefaultDateTypeAdapter(dateStyle, timeStyle);
}
if (dateTypeAdapter != null) {
if (!serializers.hasSpecificHandlerFor(Date.class)) {
serializers.register(Date.class, dateTypeAdapter);
}
if (!deserializers.hasSpecificHandlerFor(Date.class)) {
deserializers.register(Date.class, dateTypeAdapter);
}
}
}
}

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/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
package com.google.gson;
/**
* handles the limitation in gson 1.6 where
* {@link GsonBuilder#registerTypeHierarchyAdapter(Class, Object)} is package private.
*
* @see <a href="http://code.google.com/p/google-gson/issues/detail?id=271" >gson issue 271</a>
* @author Adrian Cole
*/
public class JcloudsGsonPackageAccessor {
public static GsonBuilder registerTypeHierarchyAdapter(GsonBuilder builder, Class<?> baseType, Object typeAdapter) {
return builder.registerTypeHierarchyAdapter(baseType, typeAdapter);
}
}

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/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
/*
* Copyright (C) 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gson;
import java.io.IOException;
import java.util.Map;
import com.google.gson.JcloudsCompactFormatter.FormattingVisitor;
/**
* from JsonTreeNavigator modified so that we can use JsonLiteral.
*
* @author Inderjeet Singh
*/
public class JcloudsTreeNavigator {
private final FormattingVisitor visitor;
private final boolean visitNulls;
JcloudsTreeNavigator(FormattingVisitor visitor, boolean visitNulls) {
this.visitor = visitor;
this.visitNulls = visitNulls;
}
public void navigate(JsonElement element) throws IOException {
if (element.isJsonNull()) {
visitor.visitNull();
} else if (element.isJsonArray()) {
JsonArray array = element.getAsJsonArray();
visitor.startArray(array);
boolean isFirst = true;
for (JsonElement child : array) {
visitChild(array, child, isFirst);
if (isFirst) {
isFirst = false;
}
}
visitor.endArray(array);
} else if (element.isJsonObject()) {
JsonObject object = element.getAsJsonObject();
visitor.startObject(object);
boolean isFirst = true;
for (Map.Entry<String, JsonElement> member : object.entrySet()) {
boolean visited = visitChild(object, member.getKey(), member.getValue(), isFirst);
if (visited && isFirst) {
isFirst = false;
}
}
visitor.endObject(object);
} else if (element instanceof JsonLiteral) {
visitor.visitLiteral(JsonLiteral.class.cast(element));
} else { // must be JsonPrimitive
visitor.visitPrimitive(element.getAsJsonPrimitive());
}
}
/**
* Returns true if the child was visited, false if it was skipped.
*/
private boolean visitChild(JsonObject parent, String childName, JsonElement child, boolean isFirst)
throws IOException {
if (child.isJsonNull()) {
if (visitNulls) {
visitor.visitNullObjectMember(parent, childName, isFirst);
navigate(child.getAsJsonNull());
} else { // Null value is being skipped.
return false;
}
} else if (child.isJsonArray()) {
JsonArray childAsArray = child.getAsJsonArray();
visitor.visitObjectMember(parent, childName, childAsArray, isFirst);
navigate(childAsArray);
} else if (child.isJsonObject()) {
JsonObject childAsObject = child.getAsJsonObject();
visitor.visitObjectMember(parent, childName, childAsObject, isFirst);
navigate(childAsObject);
} else if (child instanceof JsonLiteral) {
visitor.visitObjectMember(parent, childName, JsonLiteral.class.cast(child), isFirst);
} else { // is a JsonPrimitive
visitor.visitObjectMember(parent, childName, child.getAsJsonPrimitive(), isFirst);
}
return true;
}
/**
* Returns true if the child was visited, false if it was skipped.
*/
private void visitChild(JsonArray parent, JsonElement child, boolean isFirst) throws IOException {
if (child instanceof JsonLiteral) {
visitor.visitLiteral(JsonLiteral.class.cast(child));
} else if (child.isJsonNull()) {
visitor.visitNullArrayMember(parent, isFirst);
navigate(child);
} else if (child.isJsonArray()) {
JsonArray childAsArray = child.getAsJsonArray();
visitor.visitArrayMember(parent, childAsArray, isFirst);
navigate(childAsArray);
} else if (child.isJsonObject()) {
JsonObject childAsObject = child.getAsJsonObject();
visitor.visitArrayMember(parent, childAsObject, isFirst);
navigate(childAsObject);
} else { // is a JsonPrimitive
visitor.visitArrayMember(parent, child.getAsJsonPrimitive(), isFirst);
}
}
}

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package com.google.gson;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import org.jclouds.json.internal.ParseObjectFromElement;
@SuppressWarnings({ "unchecked", "rawtypes" })
public class MapTypeAdapter implements JsonSerializer<Map>, JsonDeserializer<Map>, InstanceCreator<Map> {
public JsonElement serialize(Map src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject map = new JsonObject();
Type childGenericType = null;
if (typeOfSrc instanceof ParameterizedType) {
childGenericType = new TypeInfoMap(typeOfSrc).getValueType();
}
for (Map.Entry entry : (Set<Map.Entry>) src.entrySet()) {
Object value = entry.getValue();
JsonElement valueElement;
if (value == null) {
valueElement = JsonNull.createJsonNull();
} else {
Type childType = (childGenericType == null) ? value.getClass() : childGenericType;
valueElement = context.serialize(value, childType);
}
map.add(String.valueOf(entry.getKey()), valueElement);
}
return map;
}
public Map deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
// Use ObjectConstructor to create instance instead of hard-coding a specific type.
// This handles cases where users are using their own subclass of Map.
Map<Object, Object> map = constructMapType(typeOfT, context);
TypeInfoMap mapTypeInfo = new TypeInfoMap(typeOfT);
for (Map.Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
Object key = context.deserialize(new JsonPrimitive(entry.getKey()), mapTypeInfo.getKeyType());
// START JCLOUDS PATCH
Object value = null;
if (mapTypeInfo.getValueType() == Object.class) {
value = ParseObjectFromElement.SINGLETON.apply(entry.getValue());
}
if (value == null) {
value = context.deserialize(entry.getValue(), mapTypeInfo.getValueType());
}
// END JCLOUDS PATCH
map.put(key, value);
}
return map;
}
private Map constructMapType(Type mapType, JsonDeserializationContext context) {
JsonDeserializationContextDefault contextImpl = (JsonDeserializationContextDefault) context;
ObjectConstructor objectConstructor = contextImpl.getObjectConstructor();
return (Map) objectConstructor.construct(mapType);
}
public Map createInstance(Type type) {
return new LinkedHashMap();
}
@Override
public String toString() {
return MapTypeAdapter.class.getSimpleName();
}
}

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/*
* Copyright (C) 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gson;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonWriter;
import com.google.gson.stream.MalformedJsonException;
import java.io.EOFException;
import java.io.IOException;
import java.io.Writer;
import java.util.Map;
/**
* Reads and writes GSON parse trees over streams.
*/
final class Streams {
/**
* Takes a reader in any state and returns the next value as a JsonElement.
*/
static JsonElement parse(JsonReader reader) throws JsonParseException {
boolean isEmpty = true;
try {
reader.peek();
isEmpty = false;
return parseRecursive(reader);
} catch (EOFException e) {
/*
* For compatibility with JSON 1.5 and earlier, we return a JsonNull for
* empty documents instead of throwing.
*/
if (isEmpty) {
return JsonNull.createJsonNull();
}
throw new JsonIOException(e);
} catch (MalformedJsonException e) {
throw new JsonSyntaxException(e);
} catch (IOException e) {
throw new JsonIOException(e);
} catch (NumberFormatException e) {
throw new JsonSyntaxException(e);
}
}
private static JsonElement parseRecursive(JsonReader reader) throws IOException {
switch (reader.peek()) {
case STRING:
return new JsonPrimitive(reader.nextString());
case NUMBER:
String number = reader.nextString();
return new JsonPrimitive(JsonPrimitive.stringToNumber(number));
case BOOLEAN:
return new JsonPrimitive(reader.nextBoolean());
case NULL:
reader.nextNull();
return JsonNull.createJsonNull();
case BEGIN_ARRAY:
JsonArray array = new JsonArray();
reader.beginArray();
while (reader.hasNext()) {
array.add(parseRecursive(reader));
}
reader.endArray();
return array;
case BEGIN_OBJECT:
JsonObject object = new JsonObject();
reader.beginObject();
while (reader.hasNext()) {
object.add(reader.nextName(), parseRecursive(reader));
}
reader.endObject();
return object;
case END_DOCUMENT:
case NAME:
case END_OBJECT:
case END_ARRAY:
default:
throw new IllegalArgumentException();
}
}
/**
* Writes the JSON element to the writer, recursively.
*/
static void write(JsonElement element, boolean serializeNulls, JsonWriter writer)
throws IOException {
if (element == null || element.isJsonNull()) {
if (serializeNulls) {
writer.nullValue();
}
//BEGIN JCLOUDS PATCH
} else if (element instanceof JsonLiteral ) {
writer.value(JsonLiteral.class.cast(element));
//END JCLOUDS PATCH
} else if (element.isJsonPrimitive()) {
JsonPrimitive primitive = element.getAsJsonPrimitive();
if (primitive.isNumber()) {
writer.value(primitive.getAsNumber());
} else if (primitive.isBoolean()) {
writer.value(primitive.getAsBoolean());
} else {
writer.value(primitive.getAsString());
}
} else if (element.isJsonArray()) {
writer.beginArray();
for (JsonElement e : element.getAsJsonArray()) {
/* always print null when its parent element is an array! */
if (e.isJsonNull()) {
writer.nullValue();
continue;
}
write(e, serializeNulls, writer);
}
writer.endArray();
} else if (element.isJsonObject()) {
writer.beginObject();
for (Map.Entry<String, JsonElement> e : element.getAsJsonObject().entrySet()) {
JsonElement value = e.getValue();
if (!serializeNulls && value.isJsonNull()) {
continue;
}
writer.name(e.getKey());
write(value, serializeNulls, writer);
}
writer.endObject();
} else {
throw new IllegalArgumentException("Couldn't write " + element.getClass());
}
}
static Writer writerForAppendable(Appendable appendable) {
return appendable instanceof Writer ? (Writer) appendable : new AppendableWriter(appendable);
}
/**
* Adapts an {@link Appendable} so it can be passed anywhere a {@link Writer}
* is used.
*/
private static class AppendableWriter extends Writer {
private final Appendable appendable;
private final CurrentWrite currentWrite = new CurrentWrite();
private AppendableWriter(Appendable appendable) {
this.appendable = appendable;
}
@Override public void write(char[] chars, int offset, int length) throws IOException {
currentWrite.chars = chars;
appendable.append(currentWrite, offset, offset + length);
}
@Override public void write(int i) throws IOException {
appendable.append((char) i);
}
@Override public void flush() {}
@Override public void close() {}
/**
* A mutable char sequence pointing at a single char[].
*/
static class CurrentWrite implements CharSequence {
char[] chars;
public int length() {
return chars.length;
}
public char charAt(int i) {
return chars[i];
}
public CharSequence subSequence(int start, int end) {
return new String(chars, start, end - start);
}
}
}
}

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/*
* Copyright (C) 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gson.stream;
import java.io.Closeable;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import com.google.gson.JsonLiteral;
/**
* Writes a JSON (<a href="http://www.ietf.org/rfc/rfc4627.txt">RFC 4627</a>)
* encoded value to a stream, one token at a time. The stream includes both
* literal values (strings, numbers, booleans and nulls) as well as the begin
* and end delimiters of objects and arrays.
*
* <h3>Encoding JSON</h3>
* To encode your data as JSON, create a new {@code JsonWriter}. Each JSON
* document must contain one top-level array or object. Call methods on the
* writer as you walk the structure's contents, nesting arrays and objects as
* necessary:
* <ul>
* <li>To write <strong>arrays</strong>, first call {@link #beginArray()}.
* Write each of the array's elements with the appropriate {@link #value}
* methods or by nesting other arrays and objects. Finally close the array
* using {@link #endArray()}.
* <li>To write <strong>objects</strong>, first call {@link #beginObject()}.
* Write each of the object's properties by alternating calls to
* {@link #name} with the property's value. Write property values with the
* appropriate {@link #value} method or by nesting other objects or arrays.
* Finally close the object using {@link #endObject()}.
* </ul>
*
* <h3>Example</h3>
* Suppose we'd like to encode a stream of messages such as the following: <pre> {@code
* [
* {
* "id": 912345678901,
* "text": "How do I stream JSON in Java?",
* "geo": null,
* "user": {
* "name": "json_newb",
* "followers_count": 41
* }
* },
* {
* "id": 912345678902,
* "text": "@json_newb just use JsonWriter!",
* "geo": [50.454722, -104.606667],
* "user": {
* "name": "jesse",
* "followers_count": 2
* }
* }
* ]}</pre>
* This code encodes the above structure: <pre> {@code
* public void writeJsonStream(OutputStream out, List<Message> messages) throws IOException {
* JsonWriter writer = new JsonWriter(new OutputStreamWriter(out, "UTF-8"));
* writer.setIndentSpaces(4);
* writeMessagesArray(writer, messages);
* writer.close();
* }
*
* public void writeMessagesArray(JsonWriter writer, List<Message> messages) throws IOException {
* writer.beginArray();
* for (Message message : messages) {
* writeMessage(writer, message);
* }
* writer.endArray();
* }
*
* public void writeMessage(JsonWriter writer, Message message) throws IOException {
* writer.beginObject();
* writer.name("id").value(message.getId());
* writer.name("text").value(message.getText());
* if (message.getGeo() != null) {
* writer.name("geo");
* writeDoublesArray(writer, message.getGeo());
* } else {
* writer.name("geo").nullValue();
* }
* writer.name("user");
* writeUser(writer, message.getUser());
* writer.endObject();
* }
*
* public void writeUser(JsonWriter writer, User user) throws IOException {
* writer.beginObject();
* writer.name("name").value(user.getName());
* writer.name("followers_count").value(user.getFollowersCount());
* writer.endObject();
* }
*
* public void writeDoublesArray(JsonWriter writer, List<Double> doubles) throws IOException {
* writer.beginArray();
* for (Double value : doubles) {
* writer.value(value);
* }
* writer.endArray();
* }}</pre>
*
* <p>Each {@code JsonWriter} may be used to write a single JSON stream.
* Instances of this class are not thread safe. Calls that would result in a
* malformed JSON string will fail with an {@link IllegalStateException}.
*
* @author Jesse Wilson
* @since 1.6
*/
public final class JsonWriter implements Closeable {
/** The output data, containing at most one top-level array or object. */
private final Writer out;
private final List<JsonScope> stack = new ArrayList<JsonScope>();
{
stack.add(JsonScope.EMPTY_DOCUMENT);
}
/**
* A string containing a full set of spaces for a single level of
* indentation, or null for no pretty printing.
*/
private String indent;
/**
* The name/value separator; either ":" or ": ".
*/
private String separator = ":";
private boolean lenient;
private boolean htmlSafe;
/**
* Creates a new instance that writes a JSON-encoded stream to {@code out}.
* For best performance, ensure {@link Writer} is buffered; wrapping in
* {@link java.io.BufferedWriter BufferedWriter} if necessary.
*/
public JsonWriter(Writer out) {
if (out == null) {
throw new NullPointerException("out == null");
}
this.out = out;
}
/**
* Sets the indentation string to be repeated for each level of indentation
* in the encoded document. If {@code indent.isEmpty()} the encoded document
* will be compact. Otherwise the encoded document will be more
* human-readable.
*
* @param indent a string containing only whitespace.
*/
public void setIndent(String indent) {
if (indent.length() == 0) {
this.indent = null;
this.separator = ":";
} else {
this.indent = indent;
this.separator = ": ";
}
}
/**
* Configure this writer to relax its syntax rules. By default, this writer
* only emits well-formed JSON as specified by <a
* href="http://www.ietf.org/rfc/rfc4627.txt">RFC 4627</a>. Setting the writer
* to lenient permits the following:
* <ul>
* <li>Top-level values of any type. With strict writing, the top-level
* value must be an object or an array.
* <li>Numbers may be {@link Double#isNaN() NaNs} or {@link
* Double#isInfinite() infinities}.
* </ul>
*/
public void setLenient(boolean lenient) {
this.lenient = lenient;
}
/**
* Returns true if this writer has relaxed syntax rules.
*/
public boolean isLenient() {
return lenient;
}
/**
* Configure this writer to emit JSON that's safe for direct inclusion in HTML
* and XML documents. This escapes the HTML characters {@code <}, {@code >},
* {@code &} and {@code =} before writing them to the stream. Without this
* setting, your XML/HTML encoder should replace these characters with the
* corresponding escape sequences.
*/
public void setHtmlSafe(boolean htmlSafe) {
this.htmlSafe = htmlSafe;
}
/**
* Returns true if this writer writes JSON that's safe for inclusion in HTML
* and XML documents.
*/
public boolean isHtmlSafe() {
return htmlSafe;
}
/**
* Begins encoding a new array. Each call to this method must be paired with
* a call to {@link #endArray}.
*
* @return this writer.
*/
public JsonWriter beginArray() throws IOException {
return open(JsonScope.EMPTY_ARRAY, "[");
}
/**
* Ends encoding the current array.
*
* @return this writer.
*/
public JsonWriter endArray() throws IOException {
return close(JsonScope.EMPTY_ARRAY, JsonScope.NONEMPTY_ARRAY, "]");
}
/**
* Begins encoding a new object. Each call to this method must be paired
* with a call to {@link #endObject}.
*
* @return this writer.
*/
public JsonWriter beginObject() throws IOException {
return open(JsonScope.EMPTY_OBJECT, "{");
}
/**
* Ends encoding the current object.
*
* @return this writer.
*/
public JsonWriter endObject() throws IOException {
return close(JsonScope.EMPTY_OBJECT, JsonScope.NONEMPTY_OBJECT, "}");
}
/**
* Enters a new scope by appending any necessary whitespace and the given
* bracket.
*/
private JsonWriter open(JsonScope empty, String openBracket) throws IOException {
beforeValue(true);
stack.add(empty);
out.write(openBracket);
return this;
}
/**
* Closes the current scope by appending any necessary whitespace and the
* given bracket.
*/
private JsonWriter close(JsonScope empty, JsonScope nonempty, String closeBracket)
throws IOException {
JsonScope context = peek();
if (context != nonempty && context != empty) {
throw new IllegalStateException("Nesting problem: " + stack);
}
stack.remove(stack.size() - 1);
if (context == nonempty) {
newline();
}
out.write(closeBracket);
return this;
}
/**
* Returns the value on the top of the stack.
*/
private JsonScope peek() {
return stack.get(stack.size() - 1);
}
/**
* Replace the value on the top of the stack with the given value.
*/
private void replaceTop(JsonScope topOfStack) {
stack.set(stack.size() - 1, topOfStack);
}
/**
* Encodes the property name.
*
* @param name the name of the forthcoming value. May not be null.
* @return this writer.
*/
public JsonWriter name(String name) throws IOException {
if (name == null) {
throw new NullPointerException("name == null");
}
beforeName();
string(name);
return this;
}
/**
* Encodes {@code value}.
*
* @param value the literal string value, or null to encode a null literal.
* @return this writer.
*/
public JsonWriter value(String value) throws IOException {
if (value == null) {
return nullValue();
}
beforeValue(false);
string(value);
return this;
}
/**
* Encodes {@code null}.
*
* @return this writer.
*/
public JsonWriter nullValue() throws IOException {
beforeValue(false);
out.write("null");
return this;
}
//BEGIN JCLOUDS PATCH
/**
* Writes {@code value} literally
*
* @return this writer.
*/
public JsonWriter value(JsonLiteral value) throws IOException {
beforeValue(false);
out.write(value.toString());
return this;
}
//END JCLOUDS PATCH
/**
* Encodes {@code value}.
*
* @return this writer.
*/
public JsonWriter value(boolean value) throws IOException {
beforeValue(false);
out.write(value ? "true" : "false");
return this;
}
/**
* Encodes {@code value}.
*
* @param value a finite value. May not be {@link Double#isNaN() NaNs} or
* {@link Double#isInfinite() infinities}.
* @return this writer.
*/
public JsonWriter value(double value) throws IOException {
if (Double.isNaN(value) || Double.isInfinite(value)) {
throw new IllegalArgumentException("Numeric values must be finite, but was " + value);
}
beforeValue(false);
out.append(Double.toString(value));
return this;
}
/**
* Encodes {@code value}.
*
* @return this writer.
*/
public JsonWriter value(long value) throws IOException {
beforeValue(false);
out.write(Long.toString(value));
return this;
}
/**
* Encodes {@code value}.
*
* @param value a finite value. May not be {@link Double#isNaN() NaNs} or
* {@link Double#isInfinite() infinities}.
* @return this writer.
*/
public JsonWriter value(Number value) throws IOException {
if (value == null) {
return nullValue();
}
String string = value.toString();
if (!lenient
&& (string.equals("-Infinity") || string.equals("Infinity") || string.equals("NaN"))) {
throw new IllegalArgumentException("Numeric values must be finite, but was " + value);
}
beforeValue(false);
out.append(string);
return this;
}
/**
* Ensures all buffered data is written to the underlying {@link Writer}
* and flushes that writer.
*/
public void flush() throws IOException {
out.flush();
}
/**
* Flushes and closes this writer and the underlying {@link Writer}.
*
* @throws IOException if the JSON document is incomplete.
*/
public void close() throws IOException {
out.close();
if (peek() != JsonScope.NONEMPTY_DOCUMENT) {
throw new IOException("Incomplete document");
}
}
private void string(String value) throws IOException {
out.write("\"");
for (int i = 0, length = value.length(); i < length; i++) {
char c = value.charAt(i);
/*
* From RFC 4627, "All Unicode characters may be placed within the
* quotation marks except for the characters that must be escaped:
* quotation mark, reverse solidus, and the control characters
* (U+0000 through U+001F)."
*/
switch (c) {
case '"':
case '\\':
out.write('\\');
out.write(c);
break;
case '\t':
out.write("\\t");
break;
case '\b':
out.write("\\b");
break;
case '\n':
out.write("\\n");
break;
case '\r':
out.write("\\r");
break;
case '\f':
out.write("\\f");
break;
case '<':
case '>':
case '&':
case '=':
case '\'':
if (htmlSafe) {
out.write(String.format("\\u%04x", (int) c));
} else {
out.write(c);
}
break;
default:
if (c <= 0x1F) {
out.write(String.format("\\u%04x", (int) c));
} else {
out.write(c);
}
break;
}
}
out.write("\"");
}
private void newline() throws IOException {
if (indent == null) {
return;
}
out.write("\n");
for (int i = 1; i < stack.size(); i++) {
out.write(indent);
}
}
/**
* Inserts any necessary separators and whitespace before a name. Also
* adjusts the stack to expect the name's value.
*/
private void beforeName() throws IOException {
JsonScope context = peek();
if (context == JsonScope.NONEMPTY_OBJECT) { // first in object
out.write(',');
} else if (context != JsonScope.EMPTY_OBJECT) { // not in an object!
throw new IllegalStateException("Nesting problem: " + stack);
}
newline();
replaceTop(JsonScope.DANGLING_NAME);
}
/**
* Inserts any necessary separators and whitespace before a literal value,
* inline array, or inline object. Also adjusts the stack to expect either a
* closing bracket or another element.
*
* @param root true if the value is a new array or object, the two values
* permitted as top-level elements.
*/
private void beforeValue(boolean root) throws IOException {
switch (peek()) {
case EMPTY_DOCUMENT: // first in document
if (!lenient && !root) {
throw new IllegalStateException(
"JSON must start with an array or an object.");
}
replaceTop(JsonScope.NONEMPTY_DOCUMENT);
break;
case EMPTY_ARRAY: // first in array
replaceTop(JsonScope.NONEMPTY_ARRAY);
newline();
break;
case NONEMPTY_ARRAY: // another in array
out.append(',');
newline();
break;
case DANGLING_NAME: // value for name
out.append(separator);
replaceTop(JsonScope.NONEMPTY_OBJECT);
break;
case NONEMPTY_DOCUMENT:
throw new IllegalStateException(
"JSON must have only one top-level value.");
default:
throw new IllegalStateException("Nesting problem: " + stack);
}
}
}

4
core/src/main/java/org/jclouds/Constants.java
View File

@ -164,10 +164,6 @@ public interface Constants {
* Name of the logger that records the steps of the request signing process of the HTTP_service.
*/
public static final String LOGGER_SIGNATURE = "jclouds.signature";
/**
* Name of the custom adapter bindings map for Json
*/
public static final String PROPERTY_GSON_ADAPTERS = "jclouds.gson-adapters";
/**
* String property.

67
core/src/main/java/org/jclouds/json/config/GsonModule.java
View File

@ -19,7 +19,6 @@
package org.jclouds.json.config;
import java.lang.reflect.Field;
import java.lang.reflect.Type;
import java.util.Date;
import java.util.List;
@ -28,18 +27,18 @@ import java.util.Map;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.jclouds.Constants;
import org.jclouds.crypto.CryptoStreams;
import org.jclouds.date.DateService;
import org.jclouds.domain.JsonBall;
import org.jclouds.json.Json;
import org.jclouds.json.internal.EnumTypeAdapterThatReturnsFromValue;
import org.jclouds.json.internal.GsonWrapper;
import com.google.common.collect.Maps;
import com.google.common.primitives.Bytes;
import com.google.gson.Gson;
import com.google.gson.JcloudsCompactFormatter;
import com.google.gson.JcloudsGsonBuilder;
import com.google.gson.GsonBuilder;
import com.google.gson.JcloudsGsonPackageAccessor;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
@ -48,11 +47,11 @@ import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.google.gson.MapTypeAdapter;
import com.google.gson.reflect.TypeToken;
import com.google.inject.AbstractModule;
import com.google.inject.ImplementedBy;
import com.google.inject.Provides;
import com.google.inject.name.Named;
/**
* Contains logic for parsing objects from Strings.
@ -61,13 +60,16 @@ import com.google.inject.name.Named;
*/
public class GsonModule extends AbstractModule {
@SuppressWarnings("rawtypes")
@Provides
@Singleton
Gson provideGson(JsonBallAdapter jsonObjectAdapter, DateAdapter adapter, ByteListAdapter byteListAdapter,
Gson provideGson(JsonBallAdapter jsonAdapter, DateAdapter adapter, ByteListAdapter byteListAdapter,
ByteArrayAdapter byteArrayAdapter, JsonAdapterBindings bindings) throws ClassNotFoundException, Exception {
JcloudsGsonBuilder builder = new JcloudsGsonBuilder();
builder.registerTypeAdapter(JsonBall.class, jsonObjectAdapter);
GsonBuilder builder = new GsonBuilder();
JcloudsGsonPackageAccessor.registerTypeHierarchyAdapter(builder, Enum.class,
new EnumTypeAdapterThatReturnsFromValue());
JcloudsGsonPackageAccessor.registerTypeHierarchyAdapter(builder, Map.class, new MapTypeAdapter());
builder.registerTypeAdapter(JsonBall.class, jsonAdapter);
builder.registerTypeAdapter(Date.class, adapter);
builder.registerTypeAdapter(new TypeToken<List<Byte>>() {
}.getType(), byteListAdapter);
@ -75,14 +77,26 @@ public class GsonModule extends AbstractModule {
for (Map.Entry<Type, Object> binding : bindings.getBindings().entrySet()) {
builder.registerTypeAdapter(binding.getKey(), binding.getValue());
}
JcloudsCompactFormatter formatter = new JcloudsCompactFormatter();
return builder.create();
}
@ImplementedBy(JsonBallAdapterImpl.class)
public static interface JsonBallAdapter extends JsonSerializer<JsonBall>, JsonDeserializer<JsonBall> {
}
@Singleton
public static class JsonBallAdapterImpl implements JsonBallAdapter {
public JsonElement serialize(JsonBall src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonLiteral(src);
}
public JsonBall deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return new JsonBall(json.toString());
}
Gson gson = builder.create();
// allow us to print json literals
Field statFinField = Gson.class.getDeclaredField("formatter");
statFinField.setAccessible(true);
statFinField.set(gson, formatter);
return gson;
}
@ImplementedBy(CDateAdapter.class)
@ -178,25 +192,6 @@ public class GsonModule extends AbstractModule {
}
@ImplementedBy(JsonBallAdapterImpl.class)
public static interface JsonBallAdapter extends JsonSerializer<JsonBall>, JsonDeserializer<JsonBall> {
}
@Singleton
public static class JsonBallAdapterImpl implements JsonBallAdapter {
public JsonElement serialize(JsonBall src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonLiteral(src);
}
public JsonBall deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
return new JsonBall(json.toString());
}
}
@Singleton
public static class LongDateAdapter implements DateAdapter {
@ -219,7 +214,7 @@ public class GsonModule extends AbstractModule {
private final Map<Type, Object> bindings = Maps.newHashMap();
@com.google.inject.Inject(optional = true)
public void setBindings(@Named(Constants.PROPERTY_GSON_ADAPTERS) Map<Type, Object> bindings) {
public void setBindings(Map<Type, Object> bindings) {
this.bindings.putAll(bindings);
}

82
core/src/main/java/org/jclouds/json/internal/EnumTypeAdapterThatReturnsFromValue.java Normal file
View File

@ -0,0 +1,82 @@
/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
package org.jclouds.json.internal;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.Map;
import com.google.common.base.Function;
import com.google.common.collect.MapMaker;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
/**
* @author Adrian Cole
*/
@SuppressWarnings("unchecked")
public class EnumTypeAdapterThatReturnsFromValue<T extends Enum<T>> implements JsonSerializer<T>, JsonDeserializer<T> {
public JsonElement serialize(T src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.name());
}
@SuppressWarnings("cast")
public T deserialize(JsonElement json, Type classOfT, JsonDeserializationContext context) throws JsonParseException {
try {
return (T) Enum.valueOf((Class<T>) classOfT, json.getAsString());
} catch (IllegalArgumentException e) {
Method converter = classToConvert.get(classOfT);
if (converter != null)
try {
return (T) converter.invoke(null, json.getAsString());
} catch (Exception e1) {
throw e;
}
else
throw e;
}
}
private final static Map<Class<?>, Method> classToConvert = new MapMaker()
.makeComputingMap(new Function<Class<?>, Method>() {
@Override
public Method apply(Class<?> from) {
try {
Method method = from.getMethod("fromValue", String.class);
method.setAccessible(true);
return method;
} catch (Exception e) {
return null;
}
}
});
@Override
public String toString() {
return EnumTypeAdapterThatReturnsFromValue.class.getSimpleName();
}
}

59
core/src/main/java/org/jclouds/json/internal/JsonObjectAsMap.java Normal file
View File

@ -0,0 +1,59 @@
/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
package org.jclouds.json.internal;
import java.lang.reflect.Field;
import java.util.Map;
import com.google.common.base.Function;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
/**
* Exposes the JsonObject as a map so that we can use gauva apis on it.
*
* @author Adrian Cole
*/
public enum JsonObjectAsMap implements Function<JsonObject, Map<String, JsonElement>> {
INSTANCE;
private final Field members;
JsonObjectAsMap() {
try {
members = JsonObject.class.getDeclaredField("members");
members.setAccessible(true);
} catch (NoSuchFieldException e) {
throw new UnsupportedOperationException("cannot access gson internals", e);
}
}
@SuppressWarnings("unchecked")
@Override
public Map<String, JsonElement> apply(JsonObject in) {
try {
return (Map<String, JsonElement>) members.get(in);
} catch (IllegalArgumentException e) {
throw new UnsupportedOperationException("cannot access gson internals", e);
} catch (IllegalAccessException e) {
throw new UnsupportedOperationException("cannot access gson internals", e);
}
}
}

59
core/src/main/java/org/jclouds/json/internal/ParseObjectFromElement.java Normal file
View File

@ -0,0 +1,59 @@
/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
package org.jclouds.json.internal;
import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;
import com.google.gson.MapTypeAdapter;
/**
* This is a class that helps the default {@link MapTypeAdapter} make a sane object graph when the
* value is set to {@code Object}
*
* @author Adrian Cole
*/
public enum ParseObjectFromElement implements Function<JsonElement, Object> {
SINGLETON;
public Object apply(JsonElement input) {
Object value = null;
if (input == null || input.isJsonNull()) {
value = null;
} else if (input.isJsonPrimitive()) {
JsonPrimitive primitive = input.getAsJsonPrimitive();
if (primitive.isNumber()) {
value = primitive.getAsNumber();
} else if (primitive.isBoolean()) {
value = primitive.getAsBoolean();
} else {
value = primitive.getAsString();
}
} else if (input.isJsonArray()) {
value = Lists.newArrayList(Iterables.transform(input.getAsJsonArray(), this));
} else if (input.isJsonObject()) {
value = Maps.<String,Object>newLinkedHashMap(Maps.transformValues(JsonObjectAsMap.INSTANCE.apply(input.getAsJsonObject()),
this));
}
return value;
}
}

14
core/src/test/java/org/jclouds/domain/JsonBallTest.java
View File

@ -60,20 +60,17 @@ public class JsonBallTest {
Map<String, JsonBall> map = ImmutableMap.<String, JsonBall> of("tomcat6", new JsonBall("{\"ssl_port\":8433}"));
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads
.newStringPayload(json))), map);
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}
public void testList() {
String json = "{\"list\":[8431,8433]}";
Map<String, JsonBall> map = ImmutableMap.<String, JsonBall> of("list", new JsonBall("[8431,8433]"));
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads
.newStringPayload(json))), map);
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}
@ -83,20 +80,17 @@ public class JsonBallTest {
Map<String, JsonBall> map = ImmutableMap.<String, JsonBall> of("name", new JsonBall("fooy"));
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads
.newStringPayload(json))), map);
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}
public void testNumber() {
String json = "{\"number\":1}";
Map<String, JsonBall> map = ImmutableMap.<String, JsonBall> of("number", new JsonBall("1"));
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads
.newStringPayload(json))), map);
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}

98
core/src/test/java/org/jclouds/domain/JsonObjectTest.java Normal file
View File

@ -0,0 +1,98 @@
/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
package org.jclouds.domain;
import static org.testng.Assert.assertEquals;
import java.io.IOException;
import java.util.Map;
import org.jclouds.http.HttpResponse;
import org.jclouds.http.functions.ParseJson;
import org.jclouds.io.Payloads;
import org.jclouds.json.Json;
import org.jclouds.json.config.GsonModule;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.TypeLiteral;
/**
* @author Adrian Cole
*/
@Test(groups = "unit", testName = "jclouds.ObjectTest")
public class JsonObjectTest {
private ParseJson<Map<String, Object>> handler;
private Json mapper;
@BeforeTest
protected void setUpInjector() throws IOException {
Injector injector = Guice.createInjector(new GsonModule());
handler = injector.getInstance(Key.get(new TypeLiteral<ParseJson<Map<String, Object>>>() {
}));
mapper = injector.getInstance(Json.class);
}
public void testHash() {
String json = "{\"tomcat6\":{\"ssl_port\":8433}}";
Map<String, Object> map = ImmutableMap.<String, Object> of("tomcat6", ImmutableMap.of("ssl_port", 8433));
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}
public void testList() {
String json = "{\"list\":[8431,8433]}";
Map<String, Object> map = ImmutableMap.<String, Object> of("list", ImmutableList.of(8431, 8433));
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}
public void testString() {
String json = "{\"name\":\"fooy\"}";
Map<String, Object> map = ImmutableMap.<String, Object> of("name", "fooy");
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}
public void testNumber() {
String json = "{\"number\":1}";
Map<String, Object> map = ImmutableMap.<String, Object> of("number", 1);
assertEquals(handler.apply(new HttpResponse(200, "ok", Payloads.newStringPayload(json))), map);
assertEquals(mapper.toJson(map), json);
}
}

41
core/src/test/java/org/jclouds/json/JsonTest.java
View File

@ -21,11 +21,17 @@ package org.jclouds.json;
import static org.testng.Assert.assertEquals;
import java.util.Map;
import org.jclouds.json.config.GsonModule;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Maps;
import com.google.gson.JsonParseException;
import com.google.inject.Guice;
import com.google.inject.TypeLiteral;
@Test
public class JsonTest {
@ -39,6 +45,41 @@ public class JsonTest {
private Test enumValue;
}
public void testMapStringObjectWithAllValidValuesOneDeep() {
Map<String, Object> map = Maps.newHashMap();
map.put("string", "string");
map.put("number", 1);
map.put("boolean", true);
map.put("map", ImmutableMap.of("key", "value"));
map.put("list", ImmutableList.of("key", "value"));
assertEquals(json.toJson(map),
"{\"string\":\"string\",\"map\":{\"key\":\"value\"},\"list\":[\"key\",\"value\"],\"boolean\":true,\"number\":1}");
Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
}.getType());
assertEquals(map2, map);
assertEquals(json.toJson(map2), json.toJson(map));
}
public void testMapStringObjectWithNumericalKeysConvertToStrings() {
Map<String, Object> map = ImmutableMap.<String, Object> of("map", ImmutableMap.of(1, "value"));
assertEquals(json.toJson(map), "{\"map\":{\"1\":\"value\"}}");
Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
}.getType());
// note conversion.. ensures valid
assertEquals(map2, ImmutableMap.<String, Object> of("map", ImmutableMap.of("1", "value")));
assertEquals(json.toJson(map2), json.toJson(map));
}
public void testMapStringObjectWithBooleanKeysConvertToStrings() {
Map<String, Object> map = ImmutableMap.<String, Object> of("map", ImmutableMap.of(true, "value"));
assertEquals(json.toJson(map), "{\"map\":{\"true\":\"value\"}}");
Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
}.getType());
// note conversion.. ensures valid
assertEquals(map2, ImmutableMap.<String, Object> of("map", ImmutableMap.of("true", "value")));
assertEquals(json.toJson(map2), json.toJson(map));
}
public void testDeserializeEnum() {
assertEquals(json.fromJson("{enumValue : \"FOO\"}", EnumInside.class).enumValue, EnumInside.Test.FOO);
}

3
gogrid/src/main/java/org/jclouds/gogrid/config/GoGridParserModule.java
View File

@ -19,8 +19,6 @@
package org.jclouds.gogrid.config;
import static org.jclouds.Constants.PROPERTY_GSON_ADAPTERS;
import java.lang.reflect.Type;
import java.util.Map;
@ -54,7 +52,6 @@ public class GoGridParserModule extends AbstractModule {
@Provides
@Singleton
@com.google.inject.name.Named(PROPERTY_GSON_ADAPTERS)
public Map<Type, Object> provideCustomAdapterBindings() {
Map<Type, Object> bindings = Maps.newHashMap();
bindings.put(ObjectType.class, new CustomDeserializers.ObjectTypeAdapter());

2
gogrid/src/test/java/org/jclouds/gogrid/functions/ParseCredentialsFromJsonResponseTest.java
View File

@ -28,7 +28,6 @@ import java.util.Map;
import javax.inject.Singleton;
import org.jclouds.Constants;
import org.jclouds.domain.Credentials;
import org.jclouds.gogrid.config.DateSecondsAdapter;
import org.jclouds.gogrid.domain.IpState;
@ -85,7 +84,6 @@ public class ParseCredentialsFromJsonResponseTest {
@Provides
@Singleton
@SuppressWarnings("unused")
@com.google.inject.name.Named(Constants.PROPERTY_GSON_ADAPTERS)
public Map<Type, Object> provideCustomAdapterBindings() {
Map<Type, Object> bindings = Maps.newHashMap();
bindings.put(IpState.class, new CustomDeserializers.IpStateAdapter());

2
gogrid/src/test/java/org/jclouds/gogrid/functions/ParseJobsFromJsonResponseTest.java
View File

@ -30,7 +30,6 @@ import java.util.SortedSet;
import javax.inject.Singleton;
import org.jclouds.Constants;
import org.jclouds.gogrid.config.DateSecondsAdapter;
import org.jclouds.gogrid.domain.Job;
import org.jclouds.gogrid.domain.JobProperties;
@ -88,7 +87,6 @@ public class ParseJobsFromJsonResponseTest {
@SuppressWarnings("unused")
@Provides
@Singleton
@com.google.inject.name.Named(Constants.PROPERTY_GSON_ADAPTERS)
public Map<Type, Object> provideCustomAdapterBindings() {
Map<Type, Object> bindings = Maps.newHashMap();
bindings.put(ObjectType.class, new CustomDeserializers.ObjectTypeAdapter());

2
gogrid/src/test/java/org/jclouds/gogrid/functions/ParseLoadBalancersFromJsonResponseTest.java
View File

@ -29,7 +29,6 @@ import java.util.SortedSet;
import javax.inject.Singleton;
import org.jclouds.Constants;
import org.jclouds.gogrid.config.DateSecondsAdapter;
import org.jclouds.gogrid.domain.Ip;
import org.jclouds.gogrid.domain.IpPortPair;
@ -87,7 +86,6 @@ public class ParseLoadBalancersFromJsonResponseTest {
@Provides
@Singleton
@SuppressWarnings( { "unused" })
@com.google.inject.name.Named(Constants.PROPERTY_GSON_ADAPTERS)
public Map<Type, Object> provideCustomAdapterBindings() {
Map<Type, Object> bindings = Maps.newHashMap();
bindings.put(LoadBalancerOs.class, new CustomDeserializers.LoadBalancerOsAdapter());

2
gogrid/src/test/java/org/jclouds/gogrid/functions/ParseServerNameToCredentialsMapFromJsonResponseTest.java
View File

@ -28,7 +28,6 @@ import java.util.Map;
import javax.inject.Singleton;
import org.jclouds.Constants;
import org.jclouds.domain.Credentials;
import org.jclouds.gogrid.config.DateSecondsAdapter;
import org.jclouds.gogrid.domain.IpState;
@ -73,7 +72,6 @@ public class ParseServerNameToCredentialsMapFromJsonResponseTest {
@Provides
@Singleton
@SuppressWarnings("unused")
@com.google.inject.name.Named(Constants.PROPERTY_GSON_ADAPTERS)
public Map<Type, Object> provideCustomAdapterBindings() {
Map<Type, Object> bindings = Maps.newHashMap();
bindings.put(IpState.class, new CustomDeserializers.IpStateAdapter());

2
gogrid/src/test/java/org/jclouds/gogrid/functions/ParseServersFromJsonResponseTest.java
View File

@ -29,7 +29,6 @@ import java.util.SortedSet;
import javax.inject.Singleton;
import org.jclouds.Constants;
import org.jclouds.gogrid.config.GoGridParserModule;
import org.jclouds.gogrid.domain.BillingToken;
import org.jclouds.gogrid.domain.Customer;
@ -94,7 +93,6 @@ public class ParseServersFromJsonResponseTest {
@Provides
@Singleton
@SuppressWarnings( { "unused", "unchecked" })
@com.google.inject.name.Named(Constants.PROPERTY_GSON_ADAPTERS)
public Map<Class, Object> provideCustomAdapterBindings() {
Map<Class, Object> bindings = Maps.newHashMap();
bindings.put(IpState.class, new CustomDeserializers.IpStateAdapter());