private void addTypeAdaptersForDate(
String datePattern, int dateStyle, int timeStyle, List<TypeAdapterFactory> factories) {
DefaultDateTypeAdapter dateTypeAdapter;
if (datePattern != null && !"".equals(datePattern.trim())) {
dateTypeAdapter = new DefaultDateTypeAdapter(datePattern);
} else if (dateStyle != DateFormat.DEFAULT && timeStyle != DateFormat.DEFAULT) {
dateTypeAdapter = new DefaultDateTypeAdapter(dateStyle, timeStyle);
} else {
return;
}
factories.add(TreeTypeAdapter.newFactory(TypeToken.get(Date.class), dateTypeAdapter));
factories.add(TreeTypeAdapter.newFactory(TypeToken.get(Timestamp.class), dateTypeAdapter));
factories.add(TreeTypeAdapter.newFactory(TypeToken.get(java.sql.Date.class), dateTypeAdapter));
}
/**
* Reads the next JSON value from {@code reader} and convert it to an object of type {@code
* typeOfT}. Since Type is not parameterized by T, this method is type unsafe and should be used
* carefully
*
* @throws JsonIOException if there was a problem writing to the Reader
* @throws JsonSyntaxException if json is not a valid representation for an object of type
*/
@SuppressWarnings("unchecked")
public <T> T fromJson(JsonReader reader, Type typeOfT)
throws JsonIOException, JsonSyntaxException {
boolean isEmpty = true;
boolean oldLenient = reader.isLenient();
reader.setLenient(true);
try {
reader.peek();
isEmpty = false;
TypeToken<T> typeToken = (TypeToken<T>) TypeToken.get(typeOfT);
TypeAdapter<T> typeAdapter = getAdapter(typeToken);
T object = typeAdapter.read(reader);
return object;
} catch (EOFException e) {
/*
* For compatibility with JSON 1.5 and earlier, we return null for empty
* documents instead of throwing.
*/
if (isEmpty) {
return null;
}
throw new JsonSyntaxException(e);
} catch (IllegalStateException e) {
throw new JsonSyntaxException(e);
} catch (IOException e) {
// TODO(inder): Figure out whether it is indeed right to rethrow this as JsonSyntaxException
throw new JsonSyntaxException(e);
} finally {
reader.setLenient(oldLenient);
}
}
public <T> T fromJson(JsonReader jsonReader, Type type)
throws JsonIOException, JsonSyntaxException {
boolean z = true;
boolean isLenient = jsonReader.isLenient();
jsonReader.setLenient(true);
try {
jsonReader.peek();
z = DEFAULT_JSON_NON_EXECUTABLE;
T read = getAdapter(TypeToken.get(type)).read(jsonReader);
jsonReader.setLenient(isLenient);
return read;
} catch (Throwable e) {
if (z) {
jsonReader.setLenient(isLenient);
return null;
}
throw new JsonSyntaxException(e);
} catch (Throwable e2) {
throw new JsonSyntaxException(e2);
} catch (Throwable e22) {
throw new JsonSyntaxException(e22);
} catch (Throwable th) {
jsonReader.setLenient(isLenient);
}
}
@SuppressWarnings("unchecked")
@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
Type type = typeToken.getType();
if (typeToken.getRawType() != ImmutableMap.class || !(type instanceof ParameterizedType)) {
return null;
}
com.google.common.reflect.TypeToken<ImmutableMap<?, ?>> betterToken =
(com.google.common.reflect.TypeToken<ImmutableMap<?, ?>>)
com.google.common.reflect.TypeToken.of(typeToken.getType());
final TypeAdapter<HashMap<?, ?>> hashMapAdapter =
(TypeAdapter<HashMap<?, ?>>)
gson.getAdapter(
TypeToken.get(
betterToken.getSupertype(Map.class).getSubtype(HashMap.class).getType()));
return new TypeAdapter<T>() {
@Override
public void write(JsonWriter out, T value) throws IOException {
HashMap<?, ?> hashMap = Maps.newHashMap((Map<?, ?>) value);
hashMapAdapter.write(out, hashMap);
}
@Override
public T read(JsonReader in) throws IOException {
HashMap<?, ?> hashMap = hashMapAdapter.read(in);
return (T) ImmutableMap.copyOf(hashMap);
}
};
}
@Test(
expectedExceptions = IllegalArgumentException.class,
expectedExceptionsMessageRegExp =
".* parameter 0 failed to be named by AnnotationBasedNamingStrategy requiring one of javax.inject.Named")
public void testSerializedNameRequiredOnAllParameters() {
parameterizedCtorFactory.create(
gson, TypeToken.get(WithDeserializationConstructorButWithoutSerializedName.class));
}
public void checkSimpleComposedObject() throws IOException {
ValidatedConstructor x = new ValidatedConstructor(Optional.of(0), 1);
ValidatedConstructor y = new ValidatedConstructor(Optional.of(1), 2);
TypeAdapter<ComposedObjects> adapter =
parameterizedCtorFactory.create(gson, TypeToken.get(ComposedObjects.class));
assertEquals(
new ComposedObjects(x, y),
adapter.fromJson("{\"x\":{\"foo\":0,\"bar\":1},\"y\":{\"foo\":1,\"bar\":2}}"));
}
/**
* Configures Gson for custom serialization or deserialization. This method combines the
* registration of an {@link TypeAdapter}, {@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 a type adapter was
* previously registered for the specified {@code type}, it is overwritten.
*
* <p>This registers the type specified and no other types: you must manually register related
* types! For example, applications registering {@code boolean.class} should also register {@code
* Boolean.class}.
*
* @param type the type definition for the type adapter being registered
* @param typeAdapter This object must implement at least one of the {@link TypeAdapter}, {@link
* InstanceCreator}, {@link JsonSerializer}, and a {@link JsonDeserializer} interfaces.
* @return a reference to this {@code GsonBuilder} object to fulfill the "Builder" pattern
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public GsonBuilder registerTypeAdapter(Type type, Object typeAdapter) {
$Gson$Preconditions.checkArgument(
typeAdapter instanceof JsonSerializer<?>
|| typeAdapter instanceof JsonDeserializer<?>
|| typeAdapter instanceof InstanceCreator<?>
|| typeAdapter instanceof TypeAdapter<?>);
if (typeAdapter instanceof InstanceCreator<?>) {
instanceCreators.put(type, (InstanceCreator) typeAdapter);
}
if (typeAdapter instanceof JsonSerializer<?> || typeAdapter instanceof JsonDeserializer<?>) {
TypeToken<?> typeToken = TypeToken.get(type);
factories.add(TreeTypeAdapter.newFactoryWithMatchRawType(typeToken, typeAdapter));
}
if (typeAdapter instanceof TypeAdapter<?>) {
factories.add(TypeAdapters.newFactory(TypeToken.get(type), (TypeAdapter) typeAdapter));
}
return this;
}
public TypeAdapter create(Gson gson, TypeToken typetoken)
{
typetoken = typetoken.getType();
if (!(typetoken instanceof GenericArrayType) && (!(typetoken instanceof Class) || !((Class)typetoken).isArray()))
{
return null;
} else
{
typetoken = com.google.gson.internal.yComponentType(typetoken);
return new ArrayTypeAdapter(gson, gson.getAdapter(TypeToken.get(typetoken)), com.google.gson.internal.ype(typetoken));
}
}
private Map<String, BoundField> getBoundFields(Gson context, TypeToken<?> type, Class<?> raw) {
Map<String, BoundField> result = new LinkedHashMap<String, BoundField>();
if (raw.isInterface()) {
return result;
}
Type declaredType = type.getType();
while (raw != Object.class) {
Field[] fields = raw.getDeclaredFields();
for (Field field : fields) {
boolean serialize = excludeField(field, true);
boolean deserialize = excludeField(field, false);
if (!serialize && !deserialize) {
continue;
}
field.setAccessible(true);
Type fieldType = $Gson$Types.resolve(type.getType(), raw, field.getGenericType());
List<String> fieldNames = getFieldNames(field);
BoundField previous = null;
for (int i = 0; i < fieldNames.size(); ++i) {
String name = fieldNames.get(i);
if (i != 0) serialize = false; // only serialize the default name
BoundField boundField =
createBoundField(
context, field, name, TypeToken.get(fieldType), serialize, deserialize);
BoundField replaced = result.put(name, boundField);
if (previous == null) previous = replaced;
}
if (previous != null) {
throw new IllegalArgumentException(
declaredType + " declares multiple JSON fields named " + previous.name);
}
}
type = TypeToken.get($Gson$Types.resolve(type.getType(), raw, raw.getGenericSuperclass()));
raw = type.getRawType();
}
return result;
}
public void testGenericParamsCopiedIn() throws IOException {
TypeAdapter<GenericParamsCopiedIn> adapter =
parameterizedCtorFactory.create(gson, TypeToken.get(GenericParamsCopiedIn.class));
List<String> inputFoo = Lists.newArrayList();
inputFoo.add("one");
Map<String, String> inputBar = Maps.newHashMap();
inputBar.put("2", "two");
GenericParamsCopiedIn toTest =
adapter.fromJson("{ \"foo\":[\"one\"], \"bar\":{ \"2\":\"two\"}}");
assertEquals(inputFoo, toTest.foo);
assertNotSame(inputFoo, toTest.foo);
assertEquals(inputBar, toTest.bar);
}
@SuppressWarnings("unchecked") // Casts guarded by conditionals.
static TypeAdapter<?> getTypeAdapter(
ConstructorConstructor constructorConstructor,
Gson gson,
TypeToken<?> fieldType,
JsonAdapter annotation) {
Class<?> value = annotation.value();
if (TypeAdapter.class.isAssignableFrom(value)) {
Class<TypeAdapter<?>> typeAdapter = (Class<TypeAdapter<?>>) value;
return constructorConstructor.get(TypeToken.get(typeAdapter)).construct();
}
if (TypeAdapterFactory.class.isAssignableFrom(value)) {
Class<TypeAdapterFactory> typeAdapterFactory = (Class<TypeAdapterFactory>) value;
TypeAdapterFactory factory =
constructorConstructor.get(TypeToken.get(typeAdapterFactory)).construct();
synchronized (createdFactories) {
createdFactories.add(factory);
}
return factory.create(gson, fieldType);
}
throw new IllegalArgumentException(
"@JsonAdapter value must be TypeAdapter or TypeAdapterFactory reference.");
}
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
Type type = typeToken.getType();
Class<? super T> rawType = typeToken.getRawType();
if (!Collection.class.isAssignableFrom(rawType)) {
return null;
}
Type elementType = $Gson$Types.getCollectionElementType(type, rawType);
TypeAdapter<?> elementTypeAdapter = gson.getAdapter(TypeToken.get(elementType));
ObjectConstructor<T> constructor = constructorConstructor.getConstructor(typeToken);
@SuppressWarnings({"unchecked", "rawtypes"}) // create() doesn't define a type parameter
TypeAdapter<T> result = new Adapter(gson, elementType, elementTypeAdapter, constructor);
return result;
}
/**
* Writes the JSON representation of {@code src} of type {@code typeOfSrc} to {@code writer}.
*
* @throws JsonIOException if there was a problem writing to the writer
*/
@SuppressWarnings("unchecked")
public void toJson(Object src, Type typeOfSrc, JsonWriter writer) throws JsonIOException {
TypeAdapter<?> adapter = getAdapter(TypeToken.get(typeOfSrc));
boolean oldLenient = writer.isLenient();
writer.setLenient(true);
boolean oldHtmlSafe = writer.isHtmlSafe();
writer.setHtmlSafe(htmlSafe);
boolean oldSerializeNulls = writer.getSerializeNulls();
writer.setSerializeNulls(serializeNulls);
try {
((TypeAdapter<Object>) adapter).write(writer, src);
} catch (IOException e) {
throw new JsonIOException(e);
} finally {
writer.setLenient(oldLenient);
writer.setHtmlSafe(oldHtmlSafe);
writer.setSerializeNulls(oldSerializeNulls);
}
}
public void toJson(Object obj, Type type, JsonWriter jsonWriter) throws JsonIOException {
TypeAdapter adapter = getAdapter(TypeToken.get(type));
boolean isLenient = jsonWriter.isLenient();
jsonWriter.setLenient(true);
boolean isHtmlSafe = jsonWriter.isHtmlSafe();
jsonWriter.setHtmlSafe(this.htmlSafe);
boolean serializeNulls = jsonWriter.getSerializeNulls();
jsonWriter.setSerializeNulls(this.serializeNulls);
try {
adapter.write(jsonWriter, obj);
jsonWriter.setLenient(isLenient);
jsonWriter.setHtmlSafe(isHtmlSafe);
jsonWriter.setSerializeNulls(serializeNulls);
} catch (Throwable e) {
throw new JsonIOException(e);
} catch (Throwable th) {
jsonWriter.setLenient(isLenient);
jsonWriter.setHtmlSafe(isHtmlSafe);
jsonWriter.setSerializeNulls(serializeNulls);
}
}
public void toJson(Object paramObject, Type paramType, JsonWriter paramJsonWriter)
throws JsonIOException {
paramType = getAdapter(TypeToken.get(paramType));
boolean bool1 = paramJsonWriter.isLenient();
paramJsonWriter.setLenient(true);
boolean bool2 = paramJsonWriter.isHtmlSafe();
paramJsonWriter.setHtmlSafe(this.htmlSafe);
boolean bool3 = paramJsonWriter.getSerializeNulls();
paramJsonWriter.setSerializeNulls(this.serializeNulls);
try {
paramType.write(paramJsonWriter, paramObject);
return;
} catch (IOException paramObject) {
throw new JsonIOException(paramObject);
} finally {
paramJsonWriter.setLenient(bool1);
paramJsonWriter.setHtmlSafe(bool2);
paramJsonWriter.setSerializeNulls(bool3);
}
throw paramObject;
}
@SuppressWarnings("unchecked")
public <T> T executeCreateObject(
final T newObject,
final Type returnObjectType,
final String uri,
final Map<String, String> parameters)
throws CloudstackRESTException {
final PostMethod pm = (PostMethod) createMethod(POST_METHOD_TYPE, uri);
pm.setRequestHeader(CONTENT_TYPE, JSON_CONTENT_TYPE);
try {
pm.setRequestEntity(new StringRequestEntity(gson.toJson(newObject), JSON_CONTENT_TYPE, null));
} catch (final UnsupportedEncodingException e) {
throw new CloudstackRESTException("Failed to encode json request body", e);
}
executeMethod(pm);
if (pm.getStatusCode() != HttpStatus.SC_CREATED) {
final String errorMessage = responseToErrorMessage(pm);
pm.releaseConnection();
s_logger.error("Failed to create object : " + errorMessage);
throw new CloudstackRESTException("Failed to create object : " + errorMessage);
}
T result;
try {
result =
(T)
gson.fromJson(
pm.getResponseBodyAsString(), TypeToken.get(newObject.getClass()).getType());
} catch (final IOException e) {
throw new CloudstackRESTException("Failed to decode json response body", e);
} finally {
pm.releaseConnection();
}
return result;
}
@Test(
expectedExceptions = IllegalArgumentException.class,
expectedExceptionsMessageRegExp = "Multiple entries with same key: foo.*")
public void testNoDuplicateSerializedNamesRequiredOnAllParameters() {
parameterizedCtorFactory.create(gson, TypeToken.get(DuplicateSerializedNames.class));
}
public void testRenamedFields() throws IOException {
TypeAdapter<RenamedFields> adapter =
parameterizedCtorFactory.create(gson, TypeToken.get(RenamedFields.class));
assertEquals(new RenamedFields(0, 1), adapter.fromJson("{\"foo\":0,\"_bar\":1}"));
assertEquals(adapter.toJson(new RenamedFields(0, 1)), "{\"foo\":0,\"_bar\":1}");
}
public void testEmptyObjectIsNull() throws IOException {
TypeAdapter<ComposedObjects> adapter =
parameterizedCtorFactory.create(gson, TypeToken.get(ComposedObjects.class));
assertNull(adapter.fromJson("{}"));
}
@Test(expectedExceptions = NullPointerException.class)
public void testPartialObjectStillThrows() throws IOException {
TypeAdapter<ComposedObjects> adapter =
parameterizedCtorFactory.create(gson, TypeToken.get(ComposedObjects.class));
assertNull(adapter.fromJson("{\"x\":{\"foo\":0,\"bar\":1}}"));
}
public <T> TypeAdapter<T> getAdapter(Class<T> cls) {
return getAdapter(TypeToken.get((Class) cls));
}
public void testNullWhenPrimitive() {
assertNull(parameterizedCtorFactory.create(gson, TypeToken.get(int.class)));
}
/**
* Returns the type adapter for {@code} type.
*
* @throws IllegalArgumentException if this GSON cannot serialize and deserialize {@code type}.
*/
public <T> TypeAdapter<T> getAdapter(Class<T> type) {
return getAdapter(TypeToken.get(type));
}
public void testRejectsIfNoConstuctorMarked() throws IOException {
TypeAdapter<DefaultConstructor> adapter =
parameterizedCtorFactory.create(gson, TypeToken.get(DefaultConstructor.class));
assertNull(adapter);
}
@Override
public Converter<?> get(Type type) {
TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
return new GsonConverter<>(adapter);
}
public <T> TypeAdapter<T> getAdapter(Class<T> paramClass) {
return getAdapter(TypeToken.get(paramClass));
}
