PluginManager.java

/*
 * 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.plugin;

import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.Map;

import android.os.Bundle;

public class PluginManager {
	
	private static PluginManager INSTANCE;
	private LinkedHashSet<PluginItem> pluginList;
	private Map<String, PluginItem> piMap;
	private static PluginItem[] EMPTY = {};
	private PluginControler mPluginControler;
	
	public static PluginManager getInstance()
	{
		if (INSTANCE == null)
		{
			INSTANCE = new PluginManager();
		}
		return INSTANCE;
	}
	
	private PluginManager()
	{
		pluginList = new LinkedHashSet<PluginItem>();
		piMap = new HashMap<String, PluginItem>();
	}
	
	public PluginItem[] getPlugins()
	{
		return pluginList.toArray(EMPTY);
	}
	
	public void addPlugin(PluginItem item)
	{
		synchronized (INSTANCE) {
			pluginList.add(item);
			piMap.put(item.name, item);
		}
	}
	
	public void removePlugin(String name)
	{
		synchronized (INSTANCE) {
			PluginItem item = piMap.remove(name);
			if (null != item)
			{
				pluginList.remove(item);
			}
		}
	}
	
	public PluginItem getPlugin(String name)
	{
		return piMap.get(name);
	}
	
	@SuppressWarnings("unchecked")
	public void onInitConnectGT() {
		LinkedHashSet<PluginItem> copyPluginList = null;
		synchronized (INSTANCE) {
			copyPluginList = (LinkedHashSet<PluginItem>)pluginList.clone();
		}
		for (PluginItem item : copyPluginList) {
			item.onInitConnectGT();
		}
			
	}
	
	public void register(PluginItem item)
	{
		if(null != item.name && item.name.length() > 0)
		{
			pluginList.add(item);
			piMap.put(item.name, item);
		}
	}
	
	public PluginControler getPluginControler(){
		if(null == mPluginControler){
			mPluginControler = new PluginControler();
		}
		return mPluginControler;
	}
	
	
	
	public void dispatchCommand(String sReceiver, Bundle bundle)
	{
		PluginItem item = piMap.get(sReceiver);
		if (item != null)
		{
			// 加入任务队列，由插件自己决定如何执行
			item.addTask(bundle);
		}
	}
	
	public void dispatchCommandSync(String sReceiver, Bundle bundle)
	{
		PluginItem item = piMap.get(sReceiver);
		if (item != null)
		{
			// 加入任务队列，由插件自己决定如何执行
			item.doTask(bundle);
		}
	}
}