+++ /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.JsonSyntaxException;
-import com.google.gson.TypeAdapter;
-import com.google.gson.TypeAdapterFactory;
-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.text.DateFormat;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.Locale;
-import java.util.TimeZone;
-
-/**
- * Adapter for Date. Although this class appears stateless, it is not.
- * DateFormat captures its time zone and locale when it is created, which gives
- * this class state. DateFormat isn't thread safe either, so this class has
- * to synchronize its read and write methods.
- */
-public final class DateTypeAdapter extends TypeAdapter<Date> {
- public static final TypeAdapterFactory FACTORY = new TypeAdapterFactory() {
- @SuppressWarnings("unchecked") // we use a runtime check to make sure the 'T's equal
- public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
- return typeToken.getRawType() == Date.class ? (TypeAdapter<T>) new DateTypeAdapter() : null;
- }
- };
-
- private final DateFormat enUsFormat
- = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.US);
- private final DateFormat localFormat
- = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT);
- private final DateFormat iso8601Format = buildIso8601Format();
-
- private static DateFormat buildIso8601Format() {
- DateFormat iso8601Format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US);
- iso8601Format.setTimeZone(TimeZone.getTimeZone("UTC"));
- return iso8601Format;
- }
-
- @Override public Date read(JsonReader in) throws IOException {
- if (in.peek() == JsonToken.NULL) {
- in.nextNull();
- return null;
- }
- return deserializeToDate(in.nextString());
- }
-
- private synchronized Date deserializeToDate(String json) {
- try {
- return localFormat.parse(json);
- } catch (ParseException ignored) {
- }
- try {
- return enUsFormat.parse(json);
- } catch (ParseException ignored) {
- }
- try {
- return iso8601Format.parse(json);
- } catch (ParseException e) {
- throw new JsonSyntaxException(json, e);
- }
- }
-
- @Override public synchronized void write(JsonWriter out, Date value) throws IOException {
- if (value == null) {
- out.nullValue();
- return;
- }
- String dateFormatAsString = enUsFormat.format(value);
- out.value(dateFormatAsString);
- }
-}