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MQ Light Java API.
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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.ibm.mqlight.api.impl;

import java.util.Map;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;
import com.google.gson.JsonSyntaxException;
import com.ibm.mqlight.api.JsonDelivery;
import com.ibm.mqlight.api.QOS;
import com.ibm.mqlight.api.impl.engine.DeliveryRequest;
import com.ibm.mqlight.api.logging.Logger;
import com.ibm.mqlight.api.logging.LoggerFactory;

public class JsonDeliveryImpl extends DeliveryImpl implements JsonDelivery {

    private static final Logger logger = LoggerFactory.getLogger(JsonDeliveryImpl.class);
  
    private final String jsonString;
    private final GsonBuilder gsonBuilder;

    private Gson gson;
    private JsonParser jsonParser;

    protected JsonDeliveryImpl(NonBlockingClientImpl client, QOS qos,
                               String share, String topic, String topicPattern, long ttl,
                               String data, GsonBuilder gsonBuilder,
                               Map properties, DeliveryRequest deliveryRequest) {
        super(client, qos, share, topic, topicPattern, ttl, properties, deliveryRequest);
        
        final String methodName = "";
        logger.entry(this, methodName, client, qos, share, topic, topicPattern, ttl, data, gsonBuilder, properties, deliveryRequest);
        
        jsonString = data;
        this.gsonBuilder = gsonBuilder;
        
        logger.exit(this, methodName);
    }

    private void init() {
        if (gson == null) {
            gson = gsonBuilder.create();
        }
    }

    @Override
    public synchronized  T getData(Class classOfT) throws JsonSyntaxException {
        init();
        return gson.fromJson(jsonString, classOfT);
    }

    @Override
    public  T getData(java.lang.reflect.Type typeOfT) {
        init();
        return gson.fromJson(jsonString, typeOfT);
    }

    @Override
    public synchronized JsonElement getData() throws JsonSyntaxException {
        if (jsonParser == null) {
            jsonParser = new JsonParser();
        }
        return jsonParser.parse(jsonString);
    }

    @Override
    public String getRawData() {
        return jsonString;
    }

    @Override
    public Type getType() {
        return Type.JSON;
    }
}