org.gwt.json.serialization.client.common.JsonDateSerializer.java Source code

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Here is the source code for org.gwt.json.serialization.client.common.JsonDateSerializer.java

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/*
 * 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.gwt.json.serialization.client.common;

import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.json.client.JSONException;
import com.google.gwt.json.client.JSONNull;
import com.google.gwt.json.client.JSONString;
import com.google.gwt.json.client.JSONValue;
import org.gwt.json.serialization.client.JsonSimpleTypeSerializer;

import java.util.Date;

/**
 * @author andrii borovyk 08.07.2015
 */
public class JsonDateSerializer extends JsonSimpleTypeSerializer<Date> {

    private String datePattern;

    public JsonDateSerializer(String datePattern) {
        this.datePattern = datePattern;
    }

    @Override
    public JSONValue serialize(Date obj) {
        return obj == null ? JSONNull.getInstance()
                : new JSONString(DateTimeFormat.getFormat(datePattern).format(obj));
    }

    @Override
    public Date deSerialize(JSONValue jsonObj) throws JSONException {
        return jsonObj == null ? null
                : (jsonObj.isString() == null ? null
                        : DateTimeFormat.getFormat(datePattern).parseStrict(jsonObj.isString().stringValue()));
    }

}