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The ActiveMQ Message Broker and Client implementations
/**
* 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.state;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.activemq.command.ConsumerId;
import org.apache.activemq.command.ConsumerInfo;
import org.apache.activemq.command.ProducerId;
import org.apache.activemq.command.ProducerInfo;
import org.apache.activemq.command.SessionInfo;
public class SessionState {
final SessionInfo info;
private final Map producers = new ConcurrentHashMap();
private final Map consumers = new ConcurrentHashMap();
private final AtomicBoolean shutdown = new AtomicBoolean(false);
public SessionState(SessionInfo info) {
this.info = info;
}
public String toString() {
return info.toString();
}
public void addProducer(ProducerInfo info) {
checkShutdown();
producers.put(info.getProducerId(), new ProducerState(info));
}
public ProducerState removeProducer(ProducerId id) {
ProducerState producerState = producers.remove(id);
if (producerState != null) {
if (producerState.getTransactionState() != null) {
// allow the transaction to recreate dependent producer on recovery
producerState.getTransactionState().addProducerState(producerState);
}
}
return producerState;
}
public void addConsumer(ConsumerInfo info) {
checkShutdown();
consumers.put(info.getConsumerId(), new ConsumerState(info));
}
public ConsumerState removeConsumer(ConsumerId id) {
return consumers.remove(id);
}
public SessionInfo getInfo() {
return info;
}
public Set getConsumerIds() {
return consumers.keySet();
}
public Set getProducerIds() {
return producers.keySet();
}
public Collection getProducerStates() {
return producers.values();
}
public ProducerState getProducerState(ProducerId producerId) {
return producers.get(producerId);
}
public Collection getConsumerStates() {
return consumers.values();
}
public ConsumerState getConsumerState(ConsumerId consumerId) {
return consumers.get(consumerId);
}
private void checkShutdown() {
if (shutdown.get()) {
throw new IllegalStateException("Disposed");
}
}
public void shutdown() {
shutdown.set(false);
}
}