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/*
*  Copyright (c) 2005-2011, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
*  WSO2 Inc. 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 org.wso2.carbon.hazelcast;

import com.hazelcast.config.Config;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;

/**
 * TODO: class description
 */
public class HazelcastInstanceManager {
    private static HazelcastInstanceManager instance = new HazelcastInstanceManager();
    private HazelcastInstance hazelcastInstance;

    public static HazelcastInstanceManager getInstance() {
        return instance;
    }

    public HazelcastInstance init(Config config) {
        if (hazelcastInstance != null) {
            throw new IllegalStateException("HazelcastInstanceManager has already been initialized");
        }
        hazelcastInstance = Hazelcast.newHazelcastInstance(config);
        return hazelcastInstance;
    }

    public HazelcastInstance getHazelcastInstance() {
        return hazelcastInstance;
    }

    private HazelcastInstanceManager() {
    }
}