/* * Copyright 1999-2011 Alibaba Group. * * Licensed 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.alibaba.dubbo.rpc; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentMap; import com.alibaba.dubbo.common.URL; import com.alibaba.dubbo.common.utils.StringUtils; /** * 系统存储,内部类. */ public class StaticContext extends ConcurrentHashMap<Object, Object>{ private static final long serialVersionUID = 1L; private static final String SYSTEMNAME = "system"; private String name ; private static final ConcurrentMap<String, StaticContext> context_map = new ConcurrentHashMap<String, StaticContext>() ; private StaticContext(String name) { super(); this.name = name; } public String getName() { return name; } public static StaticContext getSystemContext() { return getContext(SYSTEMNAME); } public static StaticContext getContext(String name) { StaticContext appContext = context_map.get(name); if (appContext == null){ appContext = context_map.putIfAbsent(name, new StaticContext(name)); if (appContext == null){ appContext = context_map.get(name); } } return appContext; } public static StaticContext remove(String name){ return context_map.remove(name); } public static String getKey(URL url, String methodName, String suffix) { return getKey(url.getServiceKey(), methodName, suffix); } public static String getKey(Map<String, String> paras, String methodName, String suffix) { return getKey(StringUtils.getServiceKey(paras), methodName, suffix); } private static String getKey(String servicekey, String methodName, String suffix) { StringBuffer sb = new StringBuffer().append(servicekey).append(".").append(methodName).append(".").append(suffix); return sb.toString(); } }