Changes for BAEL-2176 (#5305)
* Evaluation Article - Spring web-flux * Evaluation Article - Spring web-flux * Evaluation Article - Spring web-flux * Evaluation Article - Spring web-flux * core-scala: initial commit * adding core-scala to pom * Revert "core-scala: initial commit" This reverts commit d46873405a67addfaa69aa7855b37af9c4a3df14. * BAEL-2176 * inserting new lines between given, when and then parts * Formatted using formatter * indentation changed further * Suggested changes in coding
This commit is contained in:
Swapan Pramanick
KevinGilmore
parent
5aa8a5c985
commit
59a5313d96
130
gson/pom.xml
130
gson/pom.xml
@ -1,73 +1,73 @@
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung</groupId>
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<artifactId>gson</artifactId>
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<version>0.1-SNAPSHOT</version>
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<name>gson</name>
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung</groupId>
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<artifactId>gson</artifactId>
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<version>0.1-SNAPSHOT</version>
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<name>gson</name>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-java</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../parent-java</relativePath>
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</parent>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-java</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../parent-java</relativePath>
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</parent>
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<dependencies>
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<!-- utils -->
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>${lombok.version}</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>joda-time</groupId>
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<artifactId>joda-time</artifactId>
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<version>${joda-time.version}</version>
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</dependency>
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<dependency>
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<groupId>commons-io</groupId>
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<artifactId>commons-io</artifactId>
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<version>${commons-io.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-collections4</artifactId>
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<version>${commons-collections4.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>${commons-lang3.version}</version>
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</dependency>
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<!-- marshalling -->
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<dependency>
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<groupId>com.google.code.gson</groupId>
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<artifactId>gson</artifactId>
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<version>${gson.version}</version>
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</dependency>
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</dependencies>
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<dependencies>
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<!-- utils -->
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>${lombok.version}</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>joda-time</groupId>
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<artifactId>joda-time</artifactId>
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<version>${joda-time.version}</version>
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</dependency>
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<dependency>
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<groupId>commons-io</groupId>
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<artifactId>commons-io</artifactId>
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<version>${commons-io.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-collections4</artifactId>
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<version>${commons-collections4.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>${commons-lang3.version}</version>
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</dependency>
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<!-- marshalling -->
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<dependency>
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<groupId>com.google.code.gson</groupId>
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<artifactId>gson</artifactId>
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<version>${gson.version}</version>
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</dependency>
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</dependencies>
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<build>
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<finalName>gson</finalName>
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<resources>
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<resource>
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<directory>src/main/resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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</build>
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<build>
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<finalName>gson</finalName>
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<resources>
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<resource>
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<directory>src/main/resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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</build>
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<properties>
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<!-- marshalling -->
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<gson.version>2.8.0</gson.version>
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<!-- util -->
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<commons-lang3.version>3.5</commons-lang3.version>
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<commons-collections4.version>4.1</commons-collections4.version>
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<joda-time.version>2.9.6</joda-time.version>
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<properties>
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<!-- marshalling -->
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<gson.version>2.8.0</gson.version>
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<!-- util -->
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<commons-lang3.version>3.5</commons-lang3.version>
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<commons-collections4.version>4.1</commons-collections4.version>
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<joda-time.version>2.9.6</joda-time.version>
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<lombok.version>1.16.10</lombok.version>
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</properties>
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</properties>
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</project>
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36
gson/src/main/java/org/baeldung/gson/entities/Employee.java
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36
gson/src/main/java/org/baeldung/gson/entities/Employee.java
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@ -0,0 +1,36 @@
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package org.baeldung.gson.entities;
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public class Employee {
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private int id;
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private String name;
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private String address;
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public Employee(int id, String name) {
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this.id = id;
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this.name = name;
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}
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public int getId() {
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return id;
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}
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public void setId(int id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getAddress() {
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return address;
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}
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public void setAddress(String address) {
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this.address = address;
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}
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}
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@ -0,0 +1,66 @@
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package org.baeldung.gson.serialization;
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import java.lang.reflect.Type;
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import java.math.BigDecimal;
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import java.util.HashMap;
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import java.util.Map;
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import org.baeldung.gson.entities.Employee;
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import com.google.gson.*;
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public class HashMapDeserializer implements JsonDeserializer<HashMap<String, Object>> {
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@Override
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public HashMap<String, Object> deserialize(JsonElement elem, Type type, JsonDeserializationContext context) throws JsonParseException {
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HashMap<String, Object> map = new HashMap<>();
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for (Map.Entry<String, JsonElement> entry : elem.getAsJsonObject().entrySet()) {
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JsonElement jsonValue = entry.getValue();
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Object value = null;
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if (jsonValue.isJsonPrimitive()) {
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value = toPrimitive(jsonValue.getAsJsonPrimitive(), context);
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} else {
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value = context.deserialize(jsonValue, Employee.class);
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}
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map.put(entry.getKey(), value);
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}
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return map;
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}
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private Object toPrimitive(JsonPrimitive jsonValue, JsonDeserializationContext context) {
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if (jsonValue.isBoolean())
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return jsonValue.getAsBoolean();
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else if (jsonValue.isString())
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return jsonValue.getAsString();
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else {
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BigDecimal bigDec = jsonValue.getAsBigDecimal();
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Long l;
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Integer i;
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if ((i = toInteger(bigDec)) != null) {
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return i;
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} else if ((l = toLong(bigDec)) != null) {
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return l;
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} else {
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return bigDec.doubleValue();
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}
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}
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}
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private Long toLong(BigDecimal val) {
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try {
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return val.toBigIntegerExact().longValue();
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} catch (ArithmeticException e) {
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return null;
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}
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}
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private Integer toInteger(BigDecimal val) {
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try {
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return val.intValueExact();
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} catch (ArithmeticException e) {
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return null;
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}
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}
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}
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@ -7,13 +7,13 @@
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</encoder>
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</appender>
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<logger name="org.springframework" level="WARN" />
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<logger name="org.springframework.transaction" level="WARN" />
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<logger name="org.springframework" level="WARN"/>
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<logger name="org.springframework.transaction" level="WARN"/>
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<!-- in order to debug some marshalling issues, this needs to be TRACE -->
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<logger name="org.springframework.web.servlet.mvc" level="WARN" />
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<logger name="org.springframework.web.servlet.mvc" level="WARN"/>
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<root level="INFO">
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<appender-ref ref="STDOUT" />
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<appender-ref ref="STDOUT"/>
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</root>
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</configuration>
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@ -0,0 +1,86 @@
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package org.baeldung.gson.deserialization;
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import java.lang.reflect.Type;
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import java.util.HashMap;
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import org.baeldung.gson.entities.Employee;
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import org.baeldung.gson.serialization.HashMapDeserializer;
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import org.junit.Assert;
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import org.junit.Test;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.JsonSyntaxException;
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import com.google.gson.internal.LinkedTreeMap;
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import com.google.gson.reflect.TypeToken;
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public class HashMapDeserializationUnitTest {
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private static final Logger logger = LoggerFactory.getLogger(HashMapDeserializationUnitTest.class);
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@Test
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public void whenUsingHashMapClass_thenShouldReturnMapWithDefaultClasses() {
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String jsonString = "{'employee.name':'Bob','employee.salary':10000, 'employee.active':true, "
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+ "'employee':{'id':10, 'name': 'Bob Willis', 'address':'London'}}";
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Gson gson = new Gson();
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HashMap map = gson.fromJson(jsonString, HashMap.class);
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logger.info("The converted map: {}", map);
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Assert.assertEquals(4, map.size());
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Assert.assertEquals(Double.class, map.get("employee.salary").getClass());
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Assert.assertEquals(LinkedTreeMap.class, map.get("employee").getClass());
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}
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@Test(expected = JsonSyntaxException.class)
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public void whenUsingJsonStringWithDuplicateKey_thenShouldThrowJsonSyntaxException() {
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String jsonString = "{'employee.name':'Bob', 'employee.name':'Jenny','employee.salary':10000, "
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+ "'employee.active':true, " + "'employee':{'id':10, 'name': 'Bob Willis', 'address':'London'}}";
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Gson gson = new Gson();
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HashMap map = gson.fromJson(jsonString, HashMap.class);
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logger.info("The converted map: {}", map);
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}
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@Test
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public void whenUsingTypeToken_thenShouldReturnMapWithProperClass() {
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String jsonString = "{'Bob':{'id':10, 'name': 'Bob Willis', 'address':'UK'},"
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+ "'Jenny':{'id':10, 'name': 'Jenny McCarthy', 'address':'USA'}, "
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+ "'Steve':{'id':10, 'name': 'Steven Waugh', 'address':'Australia'}}";
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Gson gson = new Gson();
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Type empMapType = new TypeToken<HashMap<String, Employee>>(){}.getType();
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HashMap<String, Employee> nameEmployeeMap = gson.fromJson(jsonString, empMapType);
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logger.info("The converted map: {}", nameEmployeeMap);
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Assert.assertEquals(3, nameEmployeeMap.size());
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Assert.assertEquals(Employee.class, nameEmployeeMap.get("Bob").getClass());
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}
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@Test
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public void whenUsingCustomDeserializer_thenShouldReturnMapWithProperClass() {
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String jsonString = "{'employee.name':'Bob','employee.salary':10000, 'employee.active':true, "
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+ "'employee':{'id':10, 'name': 'Bob Willis', 'address':'London'}}";
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Type type = new TypeToken<HashMap<String, Object>>(){}.getType();
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Gson gson = new GsonBuilder()
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.registerTypeAdapter(type, new HashMapDeserializer())
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.create();
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HashMap<String, Object> blendedMap = gson.fromJson(jsonString, type);
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logger.info("The converted map: {}", blendedMap);
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Assert.assertEquals(4, blendedMap.size());
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Assert.assertEquals(Integer.class, blendedMap.get("employee.salary").getClass());
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Assert.assertEquals(Employee.class, blendedMap.get("employee").getClass());
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}
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}
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19
gson/src/test/resources/logback-test.xml
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19
gson/src/test/resources/logback-test.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<configuration>
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<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
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<encoder>
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<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
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</pattern>
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</encoder>
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</appender>
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<logger name="org.springframework" level="WARN"/>
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<logger name="org.springframework.transaction" level="WARN"/>
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<!-- in order to debug some marshalling issues, this needs to be TRACE -->
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<logger name="org.springframework.web.servlet.mvc" level="WARN"/>
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<root level="INFO">
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<appender-ref ref="STDOUT"/>
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</root>
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</configuration>
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