com.google.gson.internal.Primitives Java Examples

@SuppressWarnings("unchecked")
@Override public MyParameterizedType<T> deserialize(JsonElement json, Type typeOfT,
    JsonDeserializationContext context) throws JsonParseException {
  Type genericClass = ((ParameterizedType) typeOfT).getActualTypeArguments()[0];
  Class<?> rawType = $Gson$Types.getRawType(genericClass);
  String className = rawType.getSimpleName();
  JsonElement jsonElement = json.getAsJsonObject().get(className);

  T value;
  if (genericClass == Integer.class) {
    value = (T) Integer.valueOf(jsonElement.getAsInt());
  } else if (genericClass == String.class) {
    value = (T) jsonElement.getAsString();
  } else {
    value = (T) jsonElement;
  }

  if (Primitives.isPrimitive(genericClass)) {
    PrimitiveTypeAdapter typeAdapter = new PrimitiveTypeAdapter();
    value = (T) typeAdapter.adaptType(value, rawType);
  }
  return new MyParameterizedType<T>(value);
}
 

@SuppressWarnings("unchecked")
public static<T> String getExpectedJson(MyParameterizedType<T> obj) {
  Class<T> clazz = (Class<T>) obj.value.getClass();
  boolean addQuotes = !clazz.isArray() && !Primitives.unwrap(clazz).isPrimitive();
  StringBuilder sb = new StringBuilder("{\"");
  sb.append(obj.value.getClass().getSimpleName()).append("\":");
  if (addQuotes) {
    sb.append("\"");
  }
  sb.append(obj.value.toString());
  if (addQuotes) {
    sb.append("\"");
  }
  sb.append("}");
  return sb.toString();
}
 

public GsonBuilder registerTypeAdapter(Type type, Object typeAdapter) {
    boolean z = (typeAdapter instanceof JsonSerializer) || (typeAdapter instanceof JsonDeserializer) || (typeAdapter instanceof InstanceCreator) || (typeAdapter instanceof TypeAdapter);
    C$Gson$Preconditions.checkArgument(z);
    if (Primitives.isPrimitive(type) || Primitives.isWrapperType(type)) {
        throw new IllegalArgumentException("Cannot register type adapters for " + type);
    }
    if (typeAdapter instanceof InstanceCreator) {
        this.instanceCreators.put(type, (InstanceCreator) typeAdapter);
    }
    if ((typeAdapter instanceof JsonSerializer) || (typeAdapter instanceof JsonDeserializer)) {
        this.factories.add(TreeTypeAdapter.newFactoryWithMatchRawType(TypeToken.get(type), typeAdapter));
    }
    if (typeAdapter instanceof TypeAdapter) {
        this.factories.add(TypeAdapters.newFactory(TypeToken.get(type), (TypeAdapter) typeAdapter));
    }
    return this;
}
 

private static void validateField(
    String name,
    Object object,
    Field field,
    Set<Field> ignoredFields) {

  try {
    field.setAccessible(true);
    String fullName = name + "." + field.getName();
    Object fieldValue = field.get(object);
    boolean mustBeSet = !ignoredFields.contains(field);
    if (mustBeSet) {
      assertNotNull(fullName + " is null", fieldValue);
    }
    if (fieldValue != null) {
      if (Primitives.isWrapperType(fieldValue.getClass())) {
        // Special-case the mutable hash code field.
        if (mustBeSet && !fullName.endsWith("cachedHashCode")) {
          assertNotEquals(
              "Primitive value must not be default: " + fullName,
              Defaults.defaultValue(Primitives.unwrap(fieldValue.getClass())),
              fieldValue);
        }
      } else {
        assertFullyPopulated(fullName, fieldValue, ignoredFields);
      }
    }
  } catch (IllegalAccessException e) {
    throw Throwables.propagate(e);
  }
}
 

/**
 * Retrieving only one object
 * @param key - Like saving preferences, this String is a key to save and get specific data
 * @param objectModel - Base Class that you want to recover. For example String.class, or MyObject.class
 * @return the saved object, or {@code null} if the object does not exists
 */
public <T> T retrieveModel(String key, Class<T> objectModel) {
    String modelString = EasySaveUtil.retrieveData(key, context);
    Object model = null;
    try {
        model = new Gson().fromJson(modelString, objectModel);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return Primitives.wrap(objectModel).cast(model);
}
 

/**
 * Build a new field model based on the name and Java type
 *
 * @param fieldName the name of the field
 * @param type the Java raw type that will allow further analyzes
 * @param declarationClass
 */
public FieldAttributeModel(String fieldName, Type type, Class declarationClass) {
  this.fieldName = fieldName;
  this.type = type;
  this.typeName = convertType(type);
  this.dtsType = convertTypeForDTS(declarationClass, type);
  this.declarationClass = declarationClass;

  if (typeName.startsWith("Array<") || typeName.startsWith("Map<")) {
    this.needInitialize = true;
  }

  if (this.type instanceof ParameterizedType) {
    ParameterizedType parameterizedType = (ParameterizedType) this.type;
    Type rawType = parameterizedType.getRawType();
    analyzeParametrizedType(parameterizedType, rawType);
  } else if (Primitives.isPrimitive(this.type)
      || Primitives.isWrapperType(this.type)
      || String.class.equals(this.type)) {
    this.isPrimitive = true;
  } else if (this.type instanceof Class && ((Class) this.type).isAnnotationPresent(DTO.class)) {
    this.isDto = true;
    dtoImpl = this.type.getTypeName() + "Impl";
  } else if (this.type instanceof Class && ((Class) this.type).isEnum()) {
    this.isEnum = true;
  }
}
 

public Object fromJson(Reader reader, Class class1)
{
    JsonReader jsonreader = new JsonReader(reader);
    Object obj = fromJson(jsonreader, ((Type) (class1)));
    a(obj, jsonreader);
    return Primitives.wrap(class1).cast(obj);
}
 

private j a(Gson gson, Field field, String s, TypeToken typetoken, boolean flag, boolean flag1)
{
    return new i(this, s, flag, flag1, gson, typetoken, field, Primitives.isPrimitive(typetoken.getRawType()));
}
 

public Object fromJson(String s, Class class1)
{
    Object obj = fromJson(s, ((Type) (class1)));
    return Primitives.wrap(class1).cast(obj);
}
 

public Object fromJson(JsonElement jsonelement, Class class1)
{
    Object obj = fromJson(jsonelement, ((Type) (class1)));
    return Primitives.wrap(class1).cast(obj);
}
 

public <T> T get(Class<T> clazz) {
  return Primitives.wrap(clazz).cast(r);
}
 

public <T> T fromJson(JsonElement json, Class<T> classOfT) throws JsonSyntaxException {
    return Primitives.wrap(classOfT).cast(fromJson(json, (Type) classOfT));
}
 

public <T> T fromJson(Reader json, Class<T> classOfT) throws JsonSyntaxException, JsonIOException {
    JsonReader jsonReader = new JsonReader(json);
    Object object = fromJson(jsonReader, (Type) classOfT);
    assertFullConsumption(object, jsonReader);
    return Primitives.wrap(classOfT).cast(object);
}
 

public <T> T fromJson(String json, Class<T> classOfT) throws JsonSyntaxException {
    return Primitives.wrap(classOfT).cast(fromJson(json, (Type) classOfT));
}
 

/**
 * This method deserializes the Json read from the specified reader into an object of the
 * specified class. It is not suitable to use if the specified class is a generic type since it
 * will not have the generic type information because of the Type Erasure feature of Java.
 * Therefore, this method should not be used if the desired type is a generic type. Note that
 * this method works fine if the any of the fields of the specified object are generics, just the
 * object itself should not be a generic type. For the cases when the object is of generic type,
 * invoke {@link #fromJson(Reader, Type)}. If you have the Json in a String form instead of a
 * {@link Reader}, use {@link #fromJson(String, Class)} instead.
 *
 * @param <T> the type of the desired object
 * @param json the reader producing the Json from which the object is to be deserialized.
 * @param classOfT the class of T
 * @return an object of type T from the string. Returns {@code null} if {@code json} is at EOF.
 * @throws JsonIOException if there was a problem reading from the Reader
 * @throws JsonSyntaxException if json is not a valid representation for an object of type
 * @since 1.2
 */
public <T> T fromJson(Reader json, Class<T> classOfT) throws JsonSyntaxException, JsonIOException {
  JsonReader jsonReader = newJsonReader(json);
  Object object = fromJson(jsonReader, classOfT);
  assertFullConsumption(object, jsonReader);
  return Primitives.wrap(classOfT).cast(object);
}
 

/**
 * This method deserializes the Json read from the specified reader into an object of the
 * specified class. It is not suitable to use if the specified class is a generic type since it
 * will not have the generic type information because of the Type Erasure feature of Java.
 * Therefore, this method should not be used if the desired type is a generic type. Note that
 * this method works fine if the any of the fields of the specified object are generics, just the
 * object itself should not be a generic type. For the cases when the object is of generic type,
 * invoke {@link #fromJson(Reader, Type)}. If you have the Json in a String form instead of a
 * {@link Reader}, use {@link #fromJson(String, Class)} instead.
 *
 * @param <T> the type of the desired object
 * @param json the reader producing the Json from which the object is to be deserialized.
 * @param classOfT the class of T
 * @return an object of type T from the string. Returns {@code null} if {@code json} is at EOF.
 * @throws JsonIOException if there was a problem reading from the Reader
 * @throws JsonSyntaxException if json is not a valid representation for an object of type
 * @since 1.2
 */
public <T> T fromJson(Reader json, Class<T> classOfT) throws JsonSyntaxException, JsonIOException {
  JsonReader jsonReader = new JsonReader(json);
  Object object = fromJson(jsonReader, classOfT);
  assertFullConsumption(object, jsonReader);
  return Primitives.wrap(classOfT).cast(object);
}
 

/**
 * This method deserializes the specified Json into an object of the specified class. It is not
 * suitable to use if the specified class is a generic type since it will not have the generic
 * type information because of the Type Erasure feature of Java. Therefore, this method should not
 * be used if the desired type is a generic type. Note that this method works fine if the any of
 * the fields of the specified object are generics, just the object itself should not be a
 * generic type. For the cases when the object is of generic type, invoke
 * {@link #fromJson(String, Type)}. If you have the Json in a {@link Reader} instead of
 * a String, use {@link #fromJson(Reader, Class)} instead.
 *
 * @param <T> the type of the desired object
 * @param json the string from which the object is to be deserialized
 * @param classOfT the class of T
 * @return an object of type T from the string. Returns {@code null} if {@code json} is {@code null}
 * or if {@code json} is empty.
 * @throws JsonSyntaxException if json is not a valid representation for an object of type
 * classOfT
 */
public <T> T fromJson(String json, Class<T> classOfT) throws JsonSyntaxException {
  Object object = fromJson(json, (Type) classOfT);
  return Primitives.wrap(classOfT).cast(object);
}
 

/**
 * This method deserializes the Json read from the specified parse tree into an object of the
 * specified type. It is not suitable to use if the specified class is a generic type since it
 * will not have the generic type information because of the Type Erasure feature of Java.
 * Therefore, this method should not be used if the desired type is a generic type. Note that
 * this method works fine if the any of the fields of the specified object are generics, just the
 * object itself should not be a generic type. For the cases when the object is of generic type,
 * invoke {@link #fromJson(JsonElement, Type)}.
 * @param <T> the type of the desired object
 * @param json the root of the parse tree of {@link JsonElement}s from which the object is to
 * be deserialized
 * @param classOfT The class of T
 * @return an object of type T from the json. Returns {@code null} if {@code json} is {@code null}
 * or if {@code json} is empty.
 * @throws JsonSyntaxException if json is not a valid representation for an object of type typeOfT
 * @since 1.3
 */
public <T> T fromJson(JsonElement json, Class<T> classOfT) throws JsonSyntaxException {
  Object object = fromJson(json, (Type) classOfT);
  return Primitives.wrap(classOfT).cast(object);
}
 

/**
 * This method deserializes the specified Json into an object of the specified class. It is not
 * suitable to use if the specified class is a generic type since it will not have the generic
 * type information because of the Type Erasure feature of Java. Therefore, this method should not
 * be used if the desired type is a generic type. Note that this method works fine if the any of
 * the fields of the specified object are generics, just the object itself should not be a
 * generic type. For the cases when the object is of generic type, invoke
 * {@link #fromJson(String, Type)}. If you have the Json in a {@link Reader} instead of
 * a String, use {@link #fromJson(Reader, Class)} instead.
 *
 * @param <T> the type of the desired object
 * @param json the string from which the object is to be deserialized
 * @param classOfT the class of T
 * @return an object of type T from the string. Returns {@code null} if {@code json} is {@code null}.
 * @throws JsonSyntaxException if json is not a valid representation for an object of type
 * classOfT
 */
public <T> T fromJson(String json, Class<T> classOfT) throws JsonSyntaxException {
  Object object = fromJson(json, (Type) classOfT);
  return Primitives.wrap(classOfT).cast(object);
}
 

/**
 * This method deserializes the Json read from the specified parse tree into an object of the
 * specified type. It is not suitable to use if the specified class is a generic type since it
 * will not have the generic type information because of the Type Erasure feature of Java.
 * Therefore, this method should not be used if the desired type is a generic type. Note that
 * this method works fine if the any of the fields of the specified object are generics, just the
 * object itself should not be a generic type. For the cases when the object is of generic type,
 * invoke {@link #fromJson(JsonElement, Type)}.
 * @param <T> the type of the desired object
 * @param json the root of the parse tree of {@link JsonElement}s from which the object is to
 * be deserialized
 * @param classOfT The class of T
 * @return an object of type T from the json. Returns {@code null} if {@code json} is {@code null}.
 * @throws JsonSyntaxException if json is not a valid representation for an object of type typeOfT
 * @since 1.3
 */
public <T> T fromJson(JsonElement json, Class<T> classOfT) throws JsonSyntaxException {
  Object object = fromJson(json, (Type) classOfT);
  return Primitives.wrap(classOfT).cast(object);
}