2011-07-11 18:46:52 +02:00
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/*
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* Copyright (C) 2011 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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2011-08-03 02:25:10 +02:00
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package com.google.gson.internal.bind;
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2011-07-11 18:46:52 +02:00
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import java.io.IOException;
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import java.io.Reader;
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import java.io.StringReader;
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import java.io.StringWriter;
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import java.io.Writer;
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2011-08-03 04:40:18 +02:00
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import com.google.gson.JsonElement;
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import com.google.gson.internal.Streams;
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import com.google.gson.reflect.TypeToken;
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import com.google.gson.stream.JsonReader;
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import com.google.gson.stream.JsonWriter;
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2011-07-11 18:46:52 +02:00
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public abstract class TypeAdapter<T> {
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public abstract T read(JsonReader reader) throws IOException;
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public abstract void write(JsonWriter writer, T value) throws IOException;
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public final String toJson(T value) throws IOException {
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StringWriter stringWriter = new StringWriter();
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write(stringWriter, value);
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return stringWriter.toString();
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}
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public final void write(Writer out, T value) throws IOException {
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JsonWriter writer = new JsonWriter(out);
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write(writer, value);
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}
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public final T fromJson(String json) throws IOException {
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return read(new StringReader(json));
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}
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public final T read(Reader in) throws IOException {
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JsonReader reader = new JsonReader(in);
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2011-07-11 23:45:09 +02:00
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reader.setLenient(true);
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2011-07-11 18:46:52 +02:00
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return read(reader);
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}
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2011-08-03 04:40:18 +02:00
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public JsonElement toJsonElement(T src) {
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try {
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StringWriter stringWriter = new StringWriter();
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JsonWriter jsonWriter = new JsonWriter(stringWriter);
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jsonWriter.setLenient(true);
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write(jsonWriter, src);
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JsonReader reader = new JsonReader(new StringReader(stringWriter.toString()));
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reader.setLenient(true);
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return Streams.parse(reader);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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public T fromJsonElement(JsonElement json) {
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try {
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StringWriter stringWriter = new StringWriter();
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JsonWriter jsonWriter = new JsonWriter(stringWriter);
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jsonWriter.setLenient(true);
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Streams.write(json, false, jsonWriter);
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JsonReader jsonReader = new JsonReader(new StringReader(stringWriter.toString()));
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jsonReader.setLenient(true);
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return read(jsonReader);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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2011-08-03 02:17:17 +02:00
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public interface Factory {
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2011-07-11 18:46:52 +02:00
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<T> TypeAdapter<T> create(MiniGson context, TypeToken<T> type);
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}
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}
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