org.apache.activemq.util.BrokerSupport Maven / Gradle / Ivy
/**
* 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.util;
import org.apache.activemq.broker.Broker;
import org.apache.activemq.broker.ConnectionContext;
import org.apache.activemq.broker.ProducerBrokerExchange;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.Message;
import org.apache.activemq.command.ProducerInfo;
import org.apache.activemq.security.SecurityContext;
import org.apache.activemq.state.ProducerState;
/**
* Utility class for broker operations
*
*/
public final class BrokerSupport {
private BrokerSupport() {
}
public static void resendNoCopy(final ConnectionContext context, Message originalMessage, ActiveMQDestination deadLetterDestination) throws Exception {
doResend(context, originalMessage, deadLetterDestination, false);
}
/**
* @param context
* @param originalMessage
* @param deadLetterDestination
* @throws Exception
*/
public static void resend(final ConnectionContext context, Message originalMessage, ActiveMQDestination deadLetterDestination) throws Exception {
doResend(context, originalMessage, deadLetterDestination, true);
}
public static void doResend(final ConnectionContext context, Message originalMessage, ActiveMQDestination deadLetterDestination, boolean copy) throws Exception {
Message message = copy ? originalMessage.copy() : originalMessage;
message.setOriginalDestination(message.getDestination());
message.setOriginalTransactionId(message.getTransactionId());
message.setDestination(deadLetterDestination);
message.setTransactionId(null);
message.setMemoryUsage(null);
message.setRedeliveryCounter(0);
message.getMessageId().setDataLocator(null);
boolean originalFlowControl = context.isProducerFlowControl();
try {
context.setProducerFlowControl(false);
ProducerInfo info = new ProducerInfo();
ProducerState state = new ProducerState(info);
ProducerBrokerExchange producerExchange = new ProducerBrokerExchange();
producerExchange.setProducerState(state);
producerExchange.setMutable(true);
producerExchange.setConnectionContext(context);
context.getBroker().send(producerExchange, message);
} finally {
context.setProducerFlowControl(originalFlowControl);
}
}
/**
* Returns the broker's administration connection context used for
* configuring the broker at startup
*/
public static ConnectionContext getConnectionContext(Broker broker) {
ConnectionContext adminConnectionContext = broker.getAdminConnectionContext();
if (adminConnectionContext == null) {
adminConnectionContext = createAdminConnectionContext(broker);
broker.setAdminConnectionContext(adminConnectionContext);
}
return adminConnectionContext;
}
/**
* Factory method to create the new administration connection context
* object. Note this method is here rather than inside a default broker
* implementation to ensure that the broker reference inside it is the outer
* most interceptor
*/
protected static ConnectionContext createAdminConnectionContext(Broker broker) {
ConnectionContext context = new ConnectionContext();
context.setBroker(broker);
context.setSecurityContext(SecurityContext.BROKER_SECURITY_CONTEXT);
return context;
}
}