/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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.apache.vysper.xmpp.extension.xep0065_socks; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import org.apache.mina.core.session.IoSession; /** * The default implementation of {@link Socks5ConnectionsRegistry}. * * @author The Apache MINA Project (dev@mina.apache.org) */ public class DefaultSocks5ConnectionsRegistry implements Socks5ConnectionsRegistry { private Map<String, Socks5Pair> pairs = new ConcurrentHashMap<String, Socks5Pair>(); /** * {@inheritDoc} */ public Socks5Pair register(String hash, IoSession session) { Socks5Pair pair = pairs.get(hash); if(pair == null) { // new pair, this must be the target pair = new Socks5Pair(session, this, hash); pairs.put(hash, pair); } else { // update pair pair.setRequester(session); } return pair; } public IoSession getTarget(String hash) { Socks5Pair pair = pairs.get(hash); if(pair != null) { return pair.getTarget(); } else { return null; } } public IoSession getRequester(String hash) { Socks5Pair pair = pairs.get(hash); if(pair != null) { return pair.getRequester(); } else { return null; } } /** * Returns true if a pair has been activated. Will return * false if a hash is unknown to the registry. * @param hash * @return */ public boolean isActivated(String hash) { Socks5Pair pair = pairs.get(hash); if(pair != null) { return pair.isActivated(); } else { return false; } } /** * {@inheritDoc} */ public boolean activate(String hash) { Socks5Pair pair = pairs.get(hash); if(pair != null && pair.getRequester() != null) { pair.activate(); return true; } else { return false; } } /** * {@inheritDoc} */ public void close(String hash) { if(pairs.containsKey(hash)) { pairs.remove(hash); } } }