Java tutorial
/** * Copyright (C) 2015 Cambridge Systematics, 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 org.onebusaway.admin.json; import java.lang.reflect.Type; import org.joda.time.DateTime; import org.joda.time.format.DateTimeFormatter; import org.onebusaway.util.OneBusAwayDateFormats; 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; public class JodaDateTimeAdapter implements JsonSerializer<DateTime>, JsonDeserializer<DateTime> { @Override public DateTime deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException { DateTimeFormatter fmt = OneBusAwayDateFormats.DATETIMEPATTERN_JSON_DATE_TIME; DateTime result = fmt.parseDateTime(json.getAsJsonPrimitive().getAsString()); return result; } @Override public JsonElement serialize(DateTime src, Type typeOfSrc, JsonSerializationContext context) { DateTimeFormatter fmt = OneBusAwayDateFormats.DATETIMEPATTERN_JSON_DATE_TIME; return new JsonPrimitive(fmt.print(src)); } }