/**
 *  Copyright (C) 2010 Cloud.com, Inc.  All rights reserved.
 * 
 * This software is licensed under the GNU General Public License v3 or later.
 * 
 * It is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package com.cloud.serializer;



import java.util.List;

import org.apache.log4j.Logger;

import com.cloud.agent.api.Answer;
import com.cloud.agent.api.Command;
import com.cloud.agent.api.SecStorageFirewallCfgCommand.PortConfig;
import com.cloud.agent.transport.ArrayTypeAdaptor;
import com.cloud.agent.transport.LoggingExclusionStrategy;
import com.cloud.agent.transport.Request.NwGroupsCommandTypeAdaptor;
import com.cloud.agent.transport.Request.PortConfigListTypeAdaptor;
import com.cloud.utils.Pair;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.reflect.TypeToken;

public class GsonHelper {
    private static final Logger s_logger = Logger.getLogger(GsonHelper.class);

    protected static final Gson s_gson;
    protected static final Gson s_gogger;

    static {
        GsonBuilder gsonBuilder = new GsonBuilder();
        s_gson = setDefaultGsonConfig(gsonBuilder);
        GsonBuilder loggerBuilder = new GsonBuilder();
        loggerBuilder.disableHtmlEscaping();
        loggerBuilder.setExclusionStrategies(new LoggingExclusionStrategy(s_logger));
        s_gogger = setDefaultGsonConfig(loggerBuilder);
        s_logger.info("Default Builder inited.");
    }

    static Gson setDefaultGsonConfig(GsonBuilder builder) {
        builder.setVersion(1.5);
        ArrayTypeAdaptor<Command> cmdAdaptor = new ArrayTypeAdaptor<Command>();
        builder.registerTypeAdapter(Command[].class, cmdAdaptor);
        ArrayTypeAdaptor<Answer> ansAdaptor = new ArrayTypeAdaptor<Answer>();
        builder.registerTypeAdapter(Answer[].class, ansAdaptor);
        builder.registerTypeAdapter(new TypeToken<List<PortConfig>>() {
        }.getType(), new PortConfigListTypeAdaptor());
        builder.registerTypeAdapter(new TypeToken<Pair<Long, Long>>() {
        }.getType(), new NwGroupsCommandTypeAdaptor());
        Gson gson = builder.create();
        cmdAdaptor.initGson(gson);
        ansAdaptor.initGson(gson);
        return gson;
    }

    public final static Gson getGson() {
        return s_gson;
    }

    public final static Gson getGsonLogger() {
        return s_gogger;
    }

    public final static Logger getLogger() {
        return s_logger;
    }
}