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.HashMap;
024import java.util.Iterator;
025import java.util.List;
026import java.util.Map;
027import java.util.Set;
028import java.util.concurrent.ConcurrentHashMap;
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 ConcurrentHashMap<TransactionId, TransactionState> transactions = new ConcurrentHashMap<TransactionId, TransactionState>();
044    private final ConcurrentHashMap<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 HashMap<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    public String toString() {
057        return info.toString();
058    }
059
060    public void reset(ConnectionInfo info) {
061        this.info = info;
062        transactions.clear();
063        sessions.clear();
064        tempDestinations.clear();
065        shutdown.set(false);
066        // Add the default session id.
067        addSession(new SessionInfo(info, -1));
068    }
069
070    public void addTempDestination(DestinationInfo info) {
071        checkShutdown();
072        tempDestinations.add(info);
073    }
074
075    public void removeTempDestination(ActiveMQDestination destination) {
076        for (Iterator<DestinationInfo> iter = tempDestinations.iterator(); iter.hasNext();) {
077            DestinationInfo di = iter.next();
078            if (di.getDestination().equals(destination)) {
079                iter.remove();
080            }
081        }
082    }
083
084    public void addTransactionState(TransactionId id) {
085        checkShutdown();
086        transactions.put(id, new TransactionState(id));
087    }
088
089    public TransactionState getTransactionState(TransactionId id) {
090        return transactions.get(id);
091    }
092
093    public Collection<TransactionState> getTransactionStates() {
094        return transactions.values();
095    }
096
097    public TransactionState removeTransactionState(TransactionId id) {
098        return transactions.remove(id);
099    }
100
101    public void addSession(SessionInfo info) {
102        checkShutdown();
103        sessions.put(info.getSessionId(), new SessionState(info));
104    }
105
106    public SessionState removeSession(SessionId id) {
107        return sessions.remove(id);
108    }
109
110    public SessionState getSessionState(SessionId id) {
111        return sessions.get(id);
112    }
113
114    public ConnectionInfo getInfo() {
115        return info;
116    }
117
118    public Set<SessionId> getSessionIds() {
119        return sessions.keySet();
120    }
121
122    public List<DestinationInfo> getTempDestinations() {
123        return tempDestinations;
124    }
125
126    public Collection<SessionState> getSessionStates() {
127        return sessions.values();
128    }
129
130    private void checkShutdown() {
131        if (shutdown.get()) {
132            throw new IllegalStateException("Disposed");
133        }
134    }
135
136    public void shutdown() {
137        if (shutdown.compareAndSet(false, true)) {
138            for (Iterator<SessionState> iter = sessions.values().iterator(); iter.hasNext();) {
139                SessionState ss = iter.next();
140                ss.shutdown();
141            }
142        }
143    }
144
145    public Map<ConsumerId, ConsumerInfo> getRecoveringPullConsumers() {
146        if (recoveringPullConsumers == null) {
147            recoveringPullConsumers = new HashMap<ConsumerId, ConsumerInfo>();
148        }
149        return recoveringPullConsumers;
150    }
151
152    public void setConnectionInterruptProcessingComplete(boolean connectionInterruptProcessingComplete) {
153        this.connectionInterruptProcessingComplete = connectionInterruptProcessingComplete;
154    }
155    
156    public boolean isConnectionInterruptProcessingComplete() {
157        return connectionInterruptProcessingComplete;
158    }
159}