+++ /dev/null
-/*
- * 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.internal.bind;
-
-import com.google.gson.Gson;
-import com.google.gson.TypeAdapter;
-import com.google.gson.TypeAdapterFactory;
-import com.google.gson.internal.LinkedTreeMap;
-import com.google.gson.reflect.TypeToken;
-import com.google.gson.stream.JsonReader;
-import com.google.gson.stream.JsonToken;
-import com.google.gson.stream.JsonWriter;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-/**
- * Adapts types whose static type is only 'Object'. Uses getClass() on
- * serialization and a primitive/Map/List on deserialization.
- */
-public final class ObjectTypeAdapter extends TypeAdapter<Object> {
- public static final TypeAdapterFactory FACTORY = new TypeAdapterFactory() {
- @SuppressWarnings("unchecked")
- public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
- if (type.getRawType() == Object.class) {
- return (TypeAdapter<T>) new ObjectTypeAdapter(gson);
- }
- return null;
- }
- };
-
- private final Gson gson;
-
- private ObjectTypeAdapter(Gson gson) {
- this.gson = gson;
- }
-
- @Override public Object read(JsonReader in) throws IOException {
- JsonToken token = in.peek();
- switch (token) {
- case BEGIN_ARRAY:
- List<Object> list = new ArrayList<Object>();
- in.beginArray();
- while (in.hasNext()) {
- list.add(read(in));
- }
- in.endArray();
- return list;
-
- case BEGIN_OBJECT:
- Map<String, Object> map = new LinkedTreeMap<String, Object>();
- in.beginObject();
- while (in.hasNext()) {
- map.put(in.nextName(), read(in));
- }
- in.endObject();
- return map;
-
- case STRING:
- return in.nextString();
-
- case NUMBER:
- return in.nextDouble();
-
- case BOOLEAN:
- return in.nextBoolean();
-
- case NULL:
- in.nextNull();
- return null;
-
- default:
- throw new IllegalStateException();
- }
- }
-
- @SuppressWarnings("unchecked")
- @Override public void write(JsonWriter out, Object value) throws IOException {
- if (value == null) {
- out.nullValue();
- return;
- }
-
- TypeAdapter<Object> typeAdapter = (TypeAdapter<Object>) gson.getAdapter(value.getClass());
- if (typeAdapter instanceof ObjectTypeAdapter) {
- out.beginObject();
- out.endObject();
- return;
- }
-
- typeAdapter.write(out, value);
- }
-}