/*
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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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package cn.emay.sdk.util.json.gson.internal.bind;
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import java.io.IOException;
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import java.sql.Time;
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import java.text.DateFormat;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import cn.emay.sdk.util.json.gson.Gson;
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import cn.emay.sdk.util.json.gson.JsonSyntaxException;
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import cn.emay.sdk.util.json.gson.TypeAdapter;
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import cn.emay.sdk.util.json.gson.TypeAdapterFactory;
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import cn.emay.sdk.util.json.gson.reflect.TypeToken;
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import cn.emay.sdk.util.json.gson.stream.JsonReader;
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import cn.emay.sdk.util.json.gson.stream.JsonToken;
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import cn.emay.sdk.util.json.gson.stream.JsonWriter;
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/**
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* Adapter for Time. Although this class appears stateless, it is not.
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* DateFormat captures its time zone and locale when it is created, which gives
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* this class state. DateFormat isn't thread safe either, so this class has to
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* synchronize its read and write methods.
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*/
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public final class TimeTypeAdapter extends TypeAdapter<Time> {
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public static final TypeAdapterFactory FACTORY = new TypeAdapterFactory() {
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@SuppressWarnings("unchecked") // we use a runtime check to make sure the 'T's equal
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@Override
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public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
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return typeToken.getRawType() == Time.class ? (TypeAdapter<T>) new TimeTypeAdapter() : null;
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}
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};
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private final DateFormat format = new SimpleDateFormat("hh:mm:ss a");
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@Override
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public synchronized Time read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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Date date = format.parse(in.nextString());
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return new Time(date.getTime());
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} catch (ParseException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public synchronized void write(JsonWriter out, Time value) throws IOException {
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out.value(value == null ? null : format.format(value));
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}
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}
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