Issue 559:update to gson 1.7.1

core/pom.xml

@@ -106,7 +106,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>1.6</version>
+            <version>1.7.1</version>
         </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>

core/src/main/java/com/google/gson/JcloudsGsonPackageAccessor.java

@@ -1,32 +0,0 @@
-/**
- *
- * Copyright (C) 2011 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);
-   }
-}

core/src/main/java/com/google/gson/JsonLiteral.java

@@ -23,11 +23,12 @@ import static com.google.common.base.Preconditions.checkNotNull;
 import java.io.IOException;
 
 /**
- * The gson project use package to control access to their objects. However,
+ * The gson project use package to control access to their objects. However, this prevents us from
- * this prevents us from doing valid work, like controling the json emitted on a
+ * doing valid work, like controling the json emitted on a per-object basis. This is here to afford
- * per-object basis. This is here to afford us to do this.
+ * us to do this.
  * 
  * @author Adrian Cole
+ * @see <a href="http://code.google.com/p/google-gson/issues/detail?id=326"/>
  */
 public final class JsonLiteral extends JsonElement {
    private final CharSequence literal;

core/src/main/java/com/google/gson/MapTypeAdapter.java

@@ -1,89 +0,0 @@
-/**
- *
- * Copyright (C) 2011 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;
-
-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();
-   }
-}

core/src/main/java/com/google/gson/ObjectMapTypeAdapter.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2011 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.ParameterizedType;
+import java.lang.reflect.Type;
+import java.util.Map;
+import java.util.Set;
+
+import org.jclouds.json.internal.ParseObjectFromElement;
+
+import com.google.gson.internal.$Gson$Types;
+
+/**
+ * Default serialization and deserialization of a map type. This implementation really only works
+ * well with simple primitive types as the map key. If the key is not a simple primitive then the
+ * object is {@code toString}ed and that value is used as its key.
+ *   <p/>
+ *   Patched depending on <a href="http://code.google.com/p/google-gson/issues/detail?id=325">this</a>
+ * @author Joel Leitch
+ */
+@SuppressWarnings("unchecked")
+public final class ObjectMapTypeAdapter extends BaseMapTypeAdapter {
+
+  public JsonElement serialize(Map src, Type typeOfSrc, JsonSerializationContext context) {
+    JsonObject map = new JsonObject();
+    Type childGenericType = null;
+    if (typeOfSrc instanceof ParameterizedType) {
+      Class<?> rawTypeOfSrc = $Gson$Types.getRawType(typeOfSrc);
+      childGenericType = $Gson$Types.getMapKeyAndValueTypes(typeOfSrc, rawTypeOfSrc)[1];
+    }
+
+    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 = serialize(context, 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);
+    Type[] keyAndValueTypes = $Gson$Types.getMapKeyAndValueTypes(typeOfT, $Gson$Types.getRawType(typeOfT));
+    for (Map.Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
+      Object key = context.deserialize(new JsonPrimitive(entry.getKey()), keyAndValueTypes[0]);
+      // START JCLOUDS PATCH
+      // http://code.google.com/p/google-gson/issues/detail?id=325
+      Object value = null;
+      if (keyAndValueTypes[1] == Object.class) {
+         value = ParseObjectFromElement.SINGLETON.apply(entry.getValue());
+      }
+      if (value == null) {
+         value = context.deserialize(entry.getValue(), keyAndValueTypes[1]);
+      }
+      // END JCLOUDS PATCH
+      map.put(key, value);
+    }
+    return map;
+  }
+
+  @Override
+  public String toString() {
+    return MapTypeAdapter.class.getSimpleName();
+  }
+}

core/src/main/java/com/google/gson/Streams.java

@@ -1,8 +1,6 @@
-/**
+/*
+ * Copyright (C) 2010 Google Inc.
  *
- * Copyright (C) 2011 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
@@ -14,8 +12,8 @@
  * 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;
@@ -104,7 +102,8 @@ final class Streams {
       if (serializeNulls) {
         writer.nullValue();
       }
-//BEGIN JCLOUDS PATCH
+    //BEGIN JCLOUDS PATCH
+    // * @see <a href="http://code.google.com/p/google-gson/issues/detail?id=326"/>
     } else if (element instanceof JsonLiteral ) {
        writer.value(JsonLiteral.class.cast(element));
        //END JCLOUDS PATCH

core/src/main/java/com/google/gson/stream/JsonWriter.java

@@ -1,8 +1,6 @@
-/**
+/*
+ * Copyright (C) 2010 Google Inc.
  *
- * Copyright (C) 2011 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
@@ -14,8 +12,8 @@
  * 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;
@@ -344,7 +342,7 @@ public final class JsonWriter implements Closeable {
     return this;
   }
 //BEGIN JCLOUDS PATCH
-
+// * @see <a href="http://code.google.com/p/google-gson/issues/detail?id=326"/>
   /**
    * Writes {@code value} literally
    *
@@ -356,7 +354,6 @@ public final class JsonWriter implements Closeable {
     return this;
   }
   //END JCLOUDS PATCH
-
   /**
    * Encodes {@code value}.
    *

core/src/main/java/org/jclouds/domain/JsonBall.java

@@ -27,6 +27,7 @@ import org.jclouds.util.Patterns;
  * As String is final, using a different marker to imply this is a json object
  * 
  * @author Adrian Cole
+ * @see <a href="http://code.google.com/p/google-gson/issues/detail?id=326"/>
  */
 public class JsonBall implements java.io.Serializable, Comparable<String>, CharSequence {
 

core/src/main/java/org/jclouds/json/config/GsonModule.java

@@ -33,11 +33,12 @@ import org.jclouds.json.Json;
 import org.jclouds.json.internal.EnumTypeAdapterThatReturnsFromValue;
 import org.jclouds.json.internal.GsonWrapper;
 
+import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Maps;
+import com.google.common.collect.ImmutableMap.Builder;
 import com.google.common.primitives.Bytes;
 import com.google.gson.Gson;
 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;
@@ -46,7 +47,7 @@ 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.ObjectMapTypeAdapter;
 import com.google.gson.reflect.TypeToken;
 import com.google.inject.AbstractModule;
 import com.google.inject.ImplementedBy;
@@ -63,11 +64,11 @@ public class GsonModule extends AbstractModule {
    @Provides
    @Singleton
    Gson provideGson(JsonBallAdapter jsonAdapter, DateAdapter adapter, ByteListAdapter byteListAdapter,
-         ByteArrayAdapter byteArrayAdapter, JsonAdapterBindings bindings) throws ClassNotFoundException, Exception {
+            ByteArrayAdapter byteArrayAdapter, SerializePropertiesDefaults propertiesAdapter,
+            JsonAdapterBindings bindings) throws ClassNotFoundException, Exception {
       GsonBuilder builder = new GsonBuilder();
-      JcloudsGsonPackageAccessor.registerTypeHierarchyAdapter(builder, Enum.class,
+      builder.registerTypeHierarchyAdapter(Enum.class, new EnumTypeAdapterThatReturnsFromValue());
-            new EnumTypeAdapterThatReturnsFromValue());
+      builder.registerTypeHierarchyAdapter(Map.class, new ObjectMapTypeAdapter());
-      JcloudsGsonPackageAccessor.registerTypeHierarchyAdapter(builder, Map.class, new MapTypeAdapter());
       builder.registerTypeAdapter(JsonBall.class, jsonAdapter);
       builder.registerTypeAdapter(Date.class, adapter);
       builder.registerTypeAdapter(new TypeToken<List<Byte>>() {
@@ -79,6 +80,7 @@ public class GsonModule extends AbstractModule {
       return builder.create();
    }
 
+   // http://code.google.com/p/google-gson/issues/detail?id=326
    @ImplementedBy(JsonBallAdapterImpl.class)
    public static interface JsonBallAdapter extends JsonSerializer<JsonBall>, JsonDeserializer<JsonBall> {
 

core/src/main/java/org/jclouds/json/internal/JsonObjectAsMap.java

@@ -27,7 +27,7 @@ import com.google.gson.JsonObject;
 
 /**
  * Exposes the JsonObject as a map so that we can use gauva apis on it.
- * 
+ * http://code.google.com/p/google-gson/issues/detail?id=325
  * @author Adrian Cole
  */
 public enum JsonObjectAsMap implements Function<JsonObject, Map<String, JsonElement>> {

core/src/main/java/org/jclouds/json/internal/ParseObjectFromElement.java

@@ -24,12 +24,11 @@ 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}
- * 
+ * http://code.google.com/p/google-gson/issues/detail?id=325
  * @author Adrian Cole
  */
 public enum ParseObjectFromElement implements Function<JsonElement, Object> {

core/src/test/java/org/jclouds/json/JsonTest.java

@@ -36,6 +36,52 @@ import com.google.inject.TypeLiteral;
 public class JsonTest {
    private Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);
 
+   private static class ObjectNoDefaultConstructor {
+      private final String stringValue;
+      private final int intValue;
+
+      public ObjectNoDefaultConstructor(String stringValue, int intValue) {
+         this.stringValue = stringValue;
+         this.intValue = intValue;
+      }
+
+      @Override
+      public int hashCode() {
+         final int prime = 31;
+         int result = 1;
+         result = prime * result + intValue;
+         result = prime * result + ((stringValue == null) ? 0 : stringValue.hashCode());
+         return result;
+      }
+
+      @Override
+      public boolean equals(Object obj) {
+         if (this == obj)
+            return true;
+         if (obj == null)
+            return false;
+         if (getClass() != obj.getClass())
+            return false;
+         ObjectNoDefaultConstructor other = (ObjectNoDefaultConstructor) obj;
+         if (intValue != other.intValue)
+            return false;
+         if (stringValue == null) {
+            if (other.stringValue != null)
+               return false;
+         } else if (!stringValue.equals(other.stringValue))
+            return false;
+         return true;
+      }
+   }
+
+   public void testObjectNoDefaultConstructor() {
+      ObjectNoDefaultConstructor obj = new ObjectNoDefaultConstructor("foo", 1);
+      assertEquals(json.toJson(obj), "{\"stringValue\":\"foo\",\"intValue\":1}");
+      ObjectNoDefaultConstructor obj2 = json.fromJson(json.toJson(obj), ObjectNoDefaultConstructor.class);
+      assertEquals(obj2, obj);
+      assertEquals(json.toJson(obj2), json.toJson(obj));
+   }
+
    private static class EnumInside {
       private static enum Test {
          FOO, BAR;