/*
 * Tencent is pleased to support the open source community by making
 * Tencent GT (Version 2.4 and subsequent versions) available.
 *
 * Notwithstanding anything to the contrary herein, any previous version
 * of Tencent GT shall not be subject to the license hereunder.
 * All right, title, and interest, including all intellectual property rights,
 * in and to the previous version of Tencent GT (including any and all copies thereof)
 * shall be owned and retained by Tencent and subject to the license under the
 * Tencent GT End User License Agreement (http://gt.qq.com/wp-content/EULA_EN.html).
 * 
 * Copyright (C) 2015 THL A29 Limited, a Tencent company. All rights reserved.
 * 
 * Licensed under the MIT License (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License at
 * 
 * http://opensource.org/licenses/MIT
 * 
 * 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.tencent.wstt.gt.monitor.model;

import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

public class Group<T extends Key> {
	// TODO Map应该有更省资源的抽象
	protected Map<String, T> outParaMap =
			Collections.synchronizedMap(new LinkedHashMap<String, T>());
	protected String key;

	public Group(String key)
	{
		this.key = key;
	}

	public String getKey() {
		return key;
	}

	public void register(T param)
	{
		outParaMap.put(param.getKey(), param);
	}

	public void unregister(T param)
	{
		outParaMap.remove(param.getKey());
	}

	public boolean isEmpty()
	{
		return outParaMap.isEmpty();
	}

	public void clear()
	{
		outParaMap.clear();
	}

	public T getParam(String paraKey) {
		return outParaMap.get(paraKey);
	}

	public List<T> getAllParams()
	{
		List<T> result = new ArrayList<T>();
		result.addAll(outParaMap.values());
		return result;
	}
}
