/*
* This file is part of FTB Launcher.
*
* Copyright © 2012-2014, FTB Launcher Contributors <https://github.com/Slowpoke101/FTBLaunch/>
* FTB Launcher is 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 net.feed_the_beast.launcher.json;
import java.lang.reflect.Type;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.google.gson.JsonSyntaxException;
public class DateAdapter implements JsonDeserializer<Date>, JsonSerializer<Date> {
private final DateFormat enUsFormat = DateFormat.getDateTimeInstance(2, 2, Locale.US);
private final DateFormat iso8601Format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
@Override
public JsonElement serialize (Date value, Type type, JsonSerializationContext context) {
synchronized (enUsFormat) {
String ret = this.iso8601Format.format(value);
return new JsonPrimitive(ret.substring(0, 22) + ":" + ret.substring(22));
}
}
@Override
public Date deserialize (JsonElement json, Type type, JsonDeserializationContext context) throws JsonParseException {
if (!(json instanceof JsonPrimitive)) {
throw new JsonParseException("Date was not string: " + json);
}
if (type != Date.class) {
throw new IllegalArgumentException(getClass() + " cannot deserialize to " + type);
}
String value = json.getAsString();
synchronized (enUsFormat) {
try {
return enUsFormat.parse(value);
} catch (ParseException e) {
try {
return iso8601Format.parse(value);
} catch (ParseException e2) {
try {
String tmp = value.replace("Z", "+00:00");
return iso8601Format.parse(tmp.substring(0, 22) + tmp.substring(23));
} catch (ParseException e3) {
throw new JsonSyntaxException("Invalid date: " + value, e3);
}
}
}
}
}
}