| /** |
| * 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.activemq.broker; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import org.apache.activemq.command.ConnectionId; |
| import org.apache.activemq.command.ConsumerId; |
| import org.apache.activemq.command.ProducerId; |
| import org.apache.activemq.command.SessionId; |
| |
| /** |
| * |
| */ |
| |
| public class SingleTransportConnectionStateRegister implements TransportConnectionStateRegister{ |
| |
| private TransportConnectionState connectionState; |
| private ConnectionId connectionId; |
| |
| public TransportConnectionState registerConnectionState(ConnectionId connectionId, |
| TransportConnectionState state) { |
| TransportConnectionState rc = connectionState; |
| connectionState = state; |
| this.connectionId = connectionId; |
| return rc; |
| } |
| |
| public synchronized TransportConnectionState unregisterConnectionState(ConnectionId connectionId) { |
| TransportConnectionState rc = null; |
| |
| |
| if (connectionId != null && connectionState != null && this.connectionId!=null){ |
| if (this.connectionId.equals(connectionId)){ |
| rc = connectionState; |
| connectionState = null; |
| connectionId = null; |
| } |
| } |
| return rc; |
| } |
| |
| public synchronized List<TransportConnectionState> listConnectionStates() { |
| List<TransportConnectionState> rc = new ArrayList<TransportConnectionState>(); |
| if (connectionState != null) { |
| rc.add(connectionState); |
| } |
| return rc; |
| } |
| |
| public synchronized TransportConnectionState lookupConnectionState(String connectionId) { |
| TransportConnectionState cs = connectionState; |
| if (cs == null) { |
| throw new IllegalStateException( |
| "Cannot lookup a connectionId for a connection that had not been registered: " |
| + connectionId); |
| } |
| return cs; |
| } |
| |
| public synchronized TransportConnectionState lookupConnectionState(ConsumerId id) { |
| TransportConnectionState cs = connectionState; |
| if (cs == null) { |
| throw new IllegalStateException( |
| "Cannot lookup a consumer from a connection that had not been registered: " |
| + id.getParentId().getParentId()); |
| } |
| return cs; |
| } |
| |
| public synchronized TransportConnectionState lookupConnectionState(ProducerId id) { |
| TransportConnectionState cs = connectionState; |
| if (cs == null) { |
| throw new IllegalStateException( |
| "Cannot lookup a producer from a connection that had not been registered: " |
| + id.getParentId().getParentId()); |
| } |
| return cs; |
| } |
| |
| public synchronized TransportConnectionState lookupConnectionState(SessionId id) { |
| TransportConnectionState cs = connectionState; |
| if (cs == null) { |
| throw new IllegalStateException( |
| "Cannot lookup a session from a connection that had not been registered: " |
| + id.getParentId()); |
| } |
| return cs; |
| } |
| |
| public synchronized TransportConnectionState lookupConnectionState(ConnectionId connectionId) { |
| TransportConnectionState cs = connectionState; |
| return cs; |
| } |
| |
| public synchronized boolean doesHandleMultipleConnectionStates() { |
| return false; |
| } |
| |
| public synchronized boolean isEmpty() { |
| return connectionState == null; |
| } |
| |
| public void intialize(TransportConnectionStateRegister other) { |
| |
| if (other.isEmpty()){ |
| clear(); |
| }else{ |
| Map map = other.mapStates(); |
| Iterator i = map.entrySet().iterator(); |
| Map.Entry<ConnectionId, TransportConnectionState> entry = (Entry<ConnectionId, TransportConnectionState>) i.next(); |
| connectionId = entry.getKey(); |
| connectionState =entry.getValue(); |
| } |
| |
| } |
| |
| public Map<ConnectionId, TransportConnectionState> mapStates() { |
| Map<ConnectionId, TransportConnectionState> map = new HashMap<ConnectionId, TransportConnectionState>(); |
| if (!isEmpty()) { |
| map.put(connectionId, connectionState); |
| } |
| return map; |
| } |
| |
| public void clear() { |
| connectionState=null; |
| connectionId=null; |
| |
| } |
| |
| } |