added a sample Date type adapter for UTC
This commit is contained in:
parent
1d9e86e27c
commit
255f2e2847
@ -0,0 +1,63 @@
|
||||
/*
|
||||
* 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.typeadapters;
|
||||
|
||||
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;
|
||||
|
||||
import com.google.gson.JsonParseException;
|
||||
import com.google.gson.TypeAdapter;
|
||||
import com.google.gson.stream.JsonReader;
|
||||
import com.google.gson.stream.JsonWriter;
|
||||
|
||||
public final class UtcDateTypeAdapter extends TypeAdapter<Date> {
|
||||
private final DateFormat iso8601Format;
|
||||
|
||||
public UtcDateTypeAdapter() {
|
||||
this.iso8601Format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX", Locale.US);
|
||||
this.iso8601Format.setTimeZone(TimeZone.getTimeZone("UTC"));
|
||||
}
|
||||
|
||||
// These methods need to be synchronized since JDK DateFormat classes are not thread-safe
|
||||
// See issue 162
|
||||
@Override
|
||||
public synchronized void write(JsonWriter out, Date date) throws IOException {
|
||||
if (date == null) {
|
||||
out.nullValue();
|
||||
}
|
||||
out.value(iso8601Format.format(date));
|
||||
}
|
||||
|
||||
// These methods need to be synchronized since JDK DateFormat classes are not thread-safe
|
||||
// See issue 162
|
||||
@Override
|
||||
public synchronized Date read(JsonReader in) throws IOException {
|
||||
try {
|
||||
switch (in.peek()) {
|
||||
case NULL: return null;
|
||||
default: return iso8601Format.parse(in.nextString());
|
||||
}
|
||||
} catch (ParseException e) {
|
||||
throw new JsonParseException(e);
|
||||
}
|
||||
}
|
||||
}
|
@ -0,0 +1,50 @@
|
||||
/*
|
||||
* 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.typeadapters;
|
||||
|
||||
import java.util.Calendar;
|
||||
import java.util.Date;
|
||||
import java.util.TimeZone;
|
||||
|
||||
import junit.framework.TestCase;
|
||||
|
||||
import com.google.gson.Gson;
|
||||
import com.google.gson.GsonBuilder;
|
||||
|
||||
public final class UtcDateTypeAdapterTest extends TestCase {
|
||||
private final Gson gson = new GsonBuilder()
|
||||
.registerTypeAdapter(Date.class, new UtcDateTypeAdapter())
|
||||
.create();
|
||||
|
||||
public void testLocalTimeZone() {
|
||||
Date expected = new Date();
|
||||
String json = gson.toJson(expected);
|
||||
Date actual = gson.fromJson(json, Date.class);
|
||||
assertEquals(expected.getTime(), actual.getTime());
|
||||
}
|
||||
|
||||
public void testDifferentTimeZones() {
|
||||
for (String timeZone : TimeZone.getAvailableIDs()) {
|
||||
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone(timeZone));
|
||||
Date expected = cal.getTime();
|
||||
String json = gson.toJson(expected);
|
||||
// System.out.println(json + ": " + timeZone);
|
||||
Date actual = gson.fromJson(json, Date.class);
|
||||
assertEquals(expected.getTime(), actual.getTime());
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue
Block a user