001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.activemq.state;
019
020import java.util.ArrayList;
021import java.util.Collection;
022import java.util.Collections;
023import java.util.Iterator;
024import java.util.List;
025import java.util.Map;
026import java.util.Set;
027import java.util.concurrent.ConcurrentHashMap;
028import java.util.concurrent.ConcurrentMap;
029import java.util.concurrent.atomic.AtomicBoolean;
030
031import org.apache.activemq.command.ActiveMQDestination;
032import org.apache.activemq.command.ConnectionInfo;
033import org.apache.activemq.command.ConsumerId;
034import org.apache.activemq.command.ConsumerInfo;
035import org.apache.activemq.command.DestinationInfo;
036import org.apache.activemq.command.SessionId;
037import org.apache.activemq.command.SessionInfo;
038import org.apache.activemq.command.TransactionId;
039
040public class ConnectionState {
041
042    ConnectionInfo info;
043    private final ConcurrentMap<TransactionId, TransactionState> transactions = new ConcurrentHashMap<TransactionId, TransactionState>();
044    private final ConcurrentMap<SessionId, SessionState> sessions = new ConcurrentHashMap<SessionId, SessionState>();
045    private final List<DestinationInfo> tempDestinations = Collections.synchronizedList(new ArrayList<DestinationInfo>());
046    private final AtomicBoolean shutdown = new AtomicBoolean(false);
047    private boolean connectionInterruptProcessingComplete = true;
048    private ConcurrentMap<ConsumerId, ConsumerInfo> recoveringPullConsumers;
049
050    public ConnectionState(ConnectionInfo info) {
051        this.info = info;
052        // Add the default session id.
053        addSession(new SessionInfo(info, -1));
054    }
055
056    @Override
057    public String toString() {
058        return info.toString();
059    }
060
061    public void reset(ConnectionInfo info) {
062        this.info = info;
063        transactions.clear();
064        sessions.clear();
065        tempDestinations.clear();
066        shutdown.set(false);
067        // Add the default session id.
068        addSession(new SessionInfo(info, -1));
069    }
070
071    public void addTempDestination(DestinationInfo info) {
072        checkShutdown();
073        tempDestinations.add(info);
074    }
075
076    public void removeTempDestination(ActiveMQDestination destination) {
077        for (Iterator<DestinationInfo> iter = tempDestinations.iterator(); iter.hasNext();) {
078            DestinationInfo di = iter.next();
079            if (di.getDestination().equals(destination)) {
080                iter.remove();
081            }
082        }
083    }
084
085    public void addTransactionState(TransactionId id) {
086        checkShutdown();
087        transactions.put(id, new TransactionState(id));
088    }
089
090    public TransactionState getTransactionState(TransactionId id) {
091        return transactions.get(id);
092    }
093
094    public Collection<TransactionState> getTransactionStates() {
095        return transactions.values();
096    }
097
098    public TransactionState removeTransactionState(TransactionId id) {
099        return transactions.remove(id);
100    }
101
102    public void addSession(SessionInfo info) {
103        checkShutdown();
104        sessions.put(info.getSessionId(), new SessionState(info));
105    }
106
107    public SessionState removeSession(SessionId id) {
108        return sessions.remove(id);
109    }
110
111    public SessionState getSessionState(SessionId id) {
112        return sessions.get(id);
113    }
114
115    public ConnectionInfo getInfo() {
116        return info;
117    }
118
119    public Set<SessionId> getSessionIds() {
120        return sessions.keySet();
121    }
122
123    public List<DestinationInfo> getTempDestinations() {
124        return tempDestinations;
125    }
126
127    public Collection<SessionState> getSessionStates() {
128        return sessions.values();
129    }
130
131    private void checkShutdown() {
132        if (shutdown.get()) {
133            throw new IllegalStateException("Disposed");
134        }
135    }
136
137    public void shutdown() {
138        if (shutdown.compareAndSet(false, true)) {
139            for (Iterator<SessionState> iter = sessions.values().iterator(); iter.hasNext();) {
140                SessionState ss = iter.next();
141                ss.shutdown();
142            }
143        }
144    }
145
146    public Map<ConsumerId, ConsumerInfo> getRecoveringPullConsumers() {
147        if (recoveringPullConsumers == null) {
148            recoveringPullConsumers = new ConcurrentHashMap<ConsumerId, ConsumerInfo>();
149        }
150        return recoveringPullConsumers;
151    }
152
153    public void setConnectionInterruptProcessingComplete(boolean connectionInterruptProcessingComplete) {
154        this.connectionInterruptProcessingComplete = connectionInterruptProcessingComplete;
155    }
156
157    public boolean isConnectionInterruptProcessingComplete() {
158        return connectionInterruptProcessingComplete;
159    }
160}