org.agorava.twitter.jackson.TimelineDateDeserializer.java Source code

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Here is the source code for org.agorava.twitter.jackson.TimelineDateDeserializer.java

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/*
 * Copyright 2013 Agorava
 *
 * 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.agorava.twitter.jackson;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

/**
 * Deserializer to read date values from Twitter timeline entries.
 *
 * @author Craig Walls
 * @author Antoine Sabot-Durand
 */
class TimelineDateDeserializer extends JsonDeserializer<Date> {

    @Override
    public Date deserialize(JsonParser jp, DeserializationContext ctxt)
            throws IOException, JsonProcessingException {
        try {
            return new SimpleDateFormat(TIMELINE_DATE_FORMAT, Locale.ENGLISH).parse(jp.getText());
        } catch (ParseException e) {
            return null;
        }
    }

    private static final String TIMELINE_DATE_FORMAT = "EEE MMM dd HH:mm:ss ZZZZZ yyyy";

}