mirror of https://github.com/apache/activemq.git
implement https://issues.apache.org/jira/browse/AMQ-3894 - broker based redelivery via schedular resend and a per destination redelivery policy, plugin and tests
git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1352902 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gary Tully
parent
dc35766d0e
commit
ac8c8d1bc9
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@ -18,28 +18,31 @@ package org.apache.activemq;
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import java.io.Serializable;
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import java.util.Random;
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import org.apache.activemq.filter.DestinationMapEntry;
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import org.apache.activemq.util.IntrospectionSupport;
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/**
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* Configuration options used to control how messages are re-delivered when they
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* Configuration options for a messageConsumer used to control how messages are re-delivered when they
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* are rolled back.
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* May be used server side on a per destination basis via the Broker RedeliveryPlugin
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*
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* @org.apache.xbean.XBean element="redeliveryPolicy"
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*
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*/
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public class RedeliveryPolicy implements Cloneable, Serializable {
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public class RedeliveryPolicy extends DestinationMapEntry implements Cloneable, Serializable {
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public static final int NO_MAXIMUM_REDELIVERIES = -1;
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private static Random randomNumberGenerator;
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// +/-15% for a 30% spread -cgs
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private double collisionAvoidanceFactor = 0.15d;
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private int maximumRedeliveries = 6;
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private long maximumRedeliveryDelay = -1;
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private long initialRedeliveryDelay = 1000L;
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private boolean useCollisionAvoidance;
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private boolean useExponentialBackOff;
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private double backOffMultiplier = 5.0;
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private long redeliveryDelay = initialRedeliveryDelay;
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protected double collisionAvoidanceFactor = 0.15d;
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protected int maximumRedeliveries = 6;
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protected long maximumRedeliveryDelay = -1;
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protected long initialRedeliveryDelay = 1000L;
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protected boolean useCollisionAvoidance;
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protected boolean useExponentialBackOff;
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protected double backOffMultiplier = 5.0;
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protected long redeliveryDelay = initialRedeliveryDelay;
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public RedeliveryPolicy() {
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}
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@ -150,4 +153,9 @@ public class RedeliveryPolicy implements Cloneable, Serializable {
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public long getRedeliveryDelay() {
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return redeliveryDelay;
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}
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@Override
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public String toString() {
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return IntrospectionSupport.toString(this, DestinationMapEntry.class, null);
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}
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}
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@ -0,0 +1,66 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.activemq.broker.region.policy;
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import java.util.List;
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import org.apache.activemq.RedeliveryPolicy;
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import org.apache.activemq.command.ActiveMQDestination;
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import org.apache.activemq.filter.DestinationMap;
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import org.apache.activemq.filter.DestinationMapEntry;
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/**
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* Represents a destination based configuration of policies so that individual
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* destinations or wildcard hierarchies of destinations can be configured using
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* different policies.
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*
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* @org.apache.xbean.XBean
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*
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*
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*/
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public class RedeliveryPolicyMap extends DestinationMap {
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private RedeliveryPolicy defaultEntry;
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public RedeliveryPolicy getEntryFor(ActiveMQDestination destination) {
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RedeliveryPolicy answer = (RedeliveryPolicy) chooseValue(destination);
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if (answer == null) {
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answer = getDefaultEntry();
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}
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return answer;
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}
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/**
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* Sets the individual entries on the redeliveryPolicyMap
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*
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* @org.apache.xbean.ElementType class="org.apache.activemq.RedeliveryPolicy"
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*/
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public void setRedeliveryPolicyEntries(List entries) {
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super.setEntries(entries);
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}
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public RedeliveryPolicy getDefaultEntry() {
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return defaultEntry;
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}
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public void setDefaultEntry(RedeliveryPolicy defaultEntry) {
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this.defaultEntry = defaultEntry;
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}
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protected Class<? extends DestinationMapEntry> getEntryClass() {
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return RedeliveryPolicy.class;
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}
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}
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@ -0,0 +1,204 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.activemq.broker.util;
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import java.io.IOException;
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import org.apache.activemq.RedeliveryPolicy;
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import org.apache.activemq.ScheduledMessage;
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import org.apache.activemq.broker.Broker;
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import org.apache.activemq.broker.BrokerPluginSupport;
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import org.apache.activemq.broker.ConnectionContext;
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import org.apache.activemq.broker.ProducerBrokerExchange;
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import org.apache.activemq.broker.region.MessageReference;
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import org.apache.activemq.broker.region.Subscription;
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import org.apache.activemq.broker.region.policy.RedeliveryPolicyMap;
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import org.apache.activemq.command.ActiveMQDestination;
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import org.apache.activemq.command.ActiveMQQueue;
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import org.apache.activemq.command.ActiveMQTopic;
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import org.apache.activemq.command.Message;
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import org.apache.activemq.command.ProducerInfo;
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import org.apache.activemq.filter.AnyDestination;
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import org.apache.activemq.state.ProducerState;
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import org.apache.activemq.util.BrokerSupport;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Replace regular DLQ handling with redelivery via a resend to the original destination
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* after a delay
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* A destination matching RedeliveryPolicy controls the quantity and delay for re-sends
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* If there is no matching policy or an existing policy limit is exceeded by default
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* regular DLQ processing resumes. This is controlled via sendToDlqIfMaxRetriesExceeded
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* and fallbackToDeadLetter
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*
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* @org.apache.xbean.XBean element="redeliveryPlugin"
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*/
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public class RedeliveryPlugin extends BrokerPluginSupport {
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private static final Logger LOG = LoggerFactory.getLogger(RedeliveryPlugin.class);
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public static final String REDELIVERY_DELAY = "redeliveryDelay";
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RedeliveryPolicyMap redeliveryPolicyMap = new RedeliveryPolicyMap();
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boolean sendToDlqIfMaxRetriesExceeded = true;
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private boolean fallbackToDeadLetter = true;
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@Override
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public Broker installPlugin(Broker broker) throws Exception {
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if (!broker.getBrokerService().isSchedulerSupport()) {
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throw new IllegalStateException("RedeliveryPlugin requires schedulerSupport=true on the broker");
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}
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validatePolicyDelay(1000);
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return super.installPlugin(broker);
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}
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/*
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* sending to dlq is called as part of a poison ack processing, before the message is acknowledged and removed
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* by the destination so a delay is vital to avoid resending before it has been consumed
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*/
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private void validatePolicyDelay(long limit) {
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final ActiveMQDestination matchAll = new AnyDestination(new ActiveMQDestination[]{new ActiveMQQueue(">"), new ActiveMQTopic(">")});
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for (Object entry : redeliveryPolicyMap.get(matchAll)) {
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RedeliveryPolicy redeliveryPolicy = (RedeliveryPolicy) entry;
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validateLimit(limit, redeliveryPolicy);
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}
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RedeliveryPolicy defaultEntry = redeliveryPolicyMap.getDefaultEntry();
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if (defaultEntry != null) {
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validateLimit(limit, defaultEntry);
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}
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}
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private void validateLimit(long limit, RedeliveryPolicy redeliveryPolicy) {
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if (redeliveryPolicy.getInitialRedeliveryDelay() < limit) {
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throw new IllegalStateException("RedeliveryPolicy initialRedeliveryDelay must exceed: " + limit + ". " + redeliveryPolicy);
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}
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if (redeliveryPolicy.getRedeliveryDelay() < limit) {
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throw new IllegalStateException("RedeliveryPolicy redeliveryDelay must exceed: " + limit + ". " + redeliveryPolicy);
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}
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}
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public RedeliveryPolicyMap getRedeliveryPolicyMap() {
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return redeliveryPolicyMap;
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}
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public void setRedeliveryPolicyMap(RedeliveryPolicyMap redeliveryPolicyMap) {
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this.redeliveryPolicyMap = redeliveryPolicyMap;
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}
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public boolean isSendToDlqIfMaxRetriesExceeded() {
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return sendToDlqIfMaxRetriesExceeded;
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}
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/**
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* What to do if the maxretries on a matching redelivery policy is exceeded.
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* when true, the region broker DLQ processing will be used via sendToDeadLetterQueue
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* when false, there is no action
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* @param sendToDlqIfMaxRetriesExceeded
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*/
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public void setSendToDlqIfMaxRetriesExceeded(boolean sendToDlqIfMaxRetriesExceeded) {
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this.sendToDlqIfMaxRetriesExceeded = sendToDlqIfMaxRetriesExceeded;
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}
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public boolean isFallbackToDeadLetter() {
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return fallbackToDeadLetter;
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}
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/**
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* What to do if there is no matching redelivery policy for a destination.
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* when true, the region broker DLQ processing will be used via sendToDeadLetterQueue
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* when false, there is no action
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* @param fallbackToDeadLetter
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*/
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public void setFallbackToDeadLetter(boolean fallbackToDeadLetter) {
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this.fallbackToDeadLetter = fallbackToDeadLetter;
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}
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@Override
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public void sendToDeadLetterQueue(ConnectionContext context, MessageReference messageReference, Subscription subscription) {
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if (next.get().isExpired(messageReference)) {
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// there are two uses of sendToDeadLetterQueue, we are only interested in valid messages
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super.sendToDeadLetterQueue(context, messageReference, subscription);
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} else {
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try {
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final RedeliveryPolicy redeliveryPolicy = redeliveryPolicyMap.getEntryFor(messageReference.getRegionDestination().getActiveMQDestination());
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if (redeliveryPolicy != null) {
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int redeliveryCount = messageReference.getRedeliveryCounter();
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if (redeliveryCount < redeliveryPolicy.getMaximumRedeliveries()) {
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long delay = ( redeliveryCount == 0 ?
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redeliveryPolicy.getInitialRedeliveryDelay() :
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redeliveryPolicy.getNextRedeliveryDelay(getExistingDelay(messageReference)));
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scheduleRedelivery(context, messageReference, delay, ++redeliveryCount);
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} else if (isSendToDlqIfMaxRetriesExceeded()) {
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super.sendToDeadLetterQueue(context, messageReference, subscription);
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} else {
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LOG.debug("Discarding message that exceeds max redelivery count, " + messageReference.getMessageId());
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}
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} else if (isFallbackToDeadLetter()) {
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super.sendToDeadLetterQueue(context, messageReference, subscription);
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} else {
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LOG.debug("Ignoring dlq request for:" + messageReference.getMessageId() + ", RedeliveryPolicy not found (and no fallback) for: " + messageReference.getRegionDestination().getActiveMQDestination());
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}
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} catch (Exception exception) {
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// abort the ack, will be effective if client use transactions or individual ack with sync send
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RuntimeException toThrow = new RuntimeException("Failed to schedule redelivery for: " + messageReference.getMessageId(), exception);
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LOG.error(toThrow.toString(), exception);
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throw toThrow;
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}
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}
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}
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private void scheduleRedelivery(ConnectionContext context, MessageReference messageReference, long delay, int redeliveryCount) throws Exception {
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if (LOG.isTraceEnabled()) {
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LOG.trace("redelivery #" + redeliveryCount + " of: " + messageReference.getMessageId() + " with delay: "
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+ delay + ", dest: " + messageReference.getRegionDestination().getActiveMQDestination());
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}
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final Message old = messageReference.getMessage();
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Message message = old.copy();
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message.setTransactionId(null);
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message.setMemoryUsage(null);
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message.setMarshalledProperties(null);
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message.removeProperty(ScheduledMessage.AMQ_SCHEDULED_ID);
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message.setProperty(REDELIVERY_DELAY, delay);
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message.setProperty(ScheduledMessage.AMQ_SCHEDULED_DELAY, delay);
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message.setRedeliveryCounter(redeliveryCount);
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boolean originalFlowControl = context.isProducerFlowControl();
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try {
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context.setProducerFlowControl(false);
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ProducerInfo info = new ProducerInfo();
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ProducerState state = new ProducerState(info);
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ProducerBrokerExchange producerExchange = new ProducerBrokerExchange();
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producerExchange.setProducerState(state);
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producerExchange.setMutable(true);
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producerExchange.setConnectionContext(context);
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context.getBroker().send(producerExchange, message);
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} finally {
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context.setProducerFlowControl(originalFlowControl);
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}
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}
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private int getExistingDelay(MessageReference messageReference) throws IOException {
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Object val = messageReference.getMessage().getProperty(REDELIVERY_DELAY);
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if (val instanceof Long) {
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return ((Long)val).intValue();
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}
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return 0;
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}
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}
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@ -29,7 +29,7 @@ import org.apache.activemq.command.*;
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*/
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public abstract class DestinationMapEntry<T> implements Comparable<T> {
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private ActiveMQDestination destination;
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protected ActiveMQDestination destination;
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public int compareTo(Object that) {
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if (that instanceof DestinationMapEntry) {
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@ -0,0 +1,141 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
|
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* this work for additional information regarding copyright ownership.
|
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* The ASF licenses this file to You under the Apache License, Version 2.0
|
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* (the "License"); you may not use this file except in compliance with
|
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* the License. You may obtain a copy of the License at
|
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
|
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* distributed under the License is distributed on an "AS IS" BASIS,
|
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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* See the License for the specific language governing permissions and
|
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* limitations under the License.
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*/
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package org.apache.activemq.broker;
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import java.util.concurrent.TimeUnit;
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import javax.jms.Message;
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import javax.jms.MessageConsumer;
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import javax.jms.MessageProducer;
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import javax.jms.Session;
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import org.apache.activemq.ActiveMQConnection;
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import org.apache.activemq.ActiveMQConnectionFactory;
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import org.apache.activemq.RedeliveryPolicy;
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import org.apache.activemq.broker.region.policy.RedeliveryPolicyMap;
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import org.apache.activemq.broker.region.policy.SharedDeadLetterStrategy;
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import org.apache.activemq.broker.util.RedeliveryPlugin;
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import org.apache.activemq.command.ActiveMQQueue;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class BrokerRedeliveryTest extends org.apache.activemq.TestSupport {
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static final Logger LOG = LoggerFactory.getLogger(BrokerRedeliveryTest.class);
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BrokerService broker = null;
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final ActiveMQQueue destination = new ActiveMQQueue("Redelivery");
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final String data = "hi";
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final long redeliveryDelayMillis = 2000;
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final int maxBrokerRedeliveries = 2;
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public void testScheduledRedelivery() throws Exception {
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sendMessage();
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ActiveMQConnection consumerConnection = (ActiveMQConnection) createConnection();
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RedeliveryPolicy redeliveryPolicy = new RedeliveryPolicy();
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redeliveryPolicy.setInitialRedeliveryDelay(0);
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redeliveryPolicy.setMaximumRedeliveries(0);
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consumerConnection.setRedeliveryPolicy(redeliveryPolicy);
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consumerConnection.start();
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Session consumerSession = consumerConnection.createSession(true, Session.SESSION_TRANSACTED);
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MessageConsumer consumer = consumerSession.createConsumer(destination);
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Message message = consumer.receive(1000);
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assertNotNull("got message", message);
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LOG.info("got: " + message);
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consumerSession.rollback();
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for (int i=0;i<maxBrokerRedeliveries;i++) {
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Message shouldBeNull = consumer.receive(500);
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assertNull("did not get message after redelivery count exceeded: " + shouldBeNull, shouldBeNull);
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TimeUnit.SECONDS.sleep(3);
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Message brokerRedeliveryMessage = consumer.receive(500);
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LOG.info("got: " + brokerRedeliveryMessage);
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assertNotNull("got message via broker redelivery after delay", brokerRedeliveryMessage);
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assertEquals("message matches", message.getStringProperty("data"), brokerRedeliveryMessage.getStringProperty("data"));
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assertEquals("has expiryDelay specified", redeliveryDelayMillis, brokerRedeliveryMessage.getLongProperty(RedeliveryPlugin.REDELIVERY_DELAY));
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consumerSession.rollback();
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}
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// validate DLQ
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MessageConsumer dlqConsumer = consumerSession.createConsumer(new ActiveMQQueue(SharedDeadLetterStrategy.DEFAULT_DEAD_LETTER_QUEUE_NAME));
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Message dlqMessage = dlqConsumer.receive(2000);
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assertNotNull("Got message from dql", dlqMessage);
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assertEquals("message matches", message.getStringProperty("data"), dlqMessage.getStringProperty("data"));
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consumerSession.commit();
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}
|
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|
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private void sendMessage() throws Exception {
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ActiveMQConnection producerConnection = (ActiveMQConnection) createConnection();
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producerConnection.start();
|
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Session producerSession = producerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
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MessageProducer producer = producerSession.createProducer(destination);
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Message message = producerSession.createMessage();
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message.setStringProperty("data", data);
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producer.send(message);
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producerConnection.close();
|
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}
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private void startBroker(boolean deleteMessages) throws Exception {
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broker = new BrokerService();
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broker.setSchedulerSupport(true);
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|
||||
RedeliveryPlugin redeliveryPlugin = new RedeliveryPlugin();
|
||||
|
||||
RedeliveryPolicy brokerRedeliveryPolicy = new RedeliveryPolicy();
|
||||
brokerRedeliveryPolicy.setRedeliveryDelay(redeliveryDelayMillis);
|
||||
brokerRedeliveryPolicy.setInitialRedeliveryDelay(redeliveryDelayMillis);
|
||||
brokerRedeliveryPolicy.setMaximumRedeliveries(maxBrokerRedeliveries);
|
||||
|
||||
RedeliveryPolicyMap redeliveryPolicyMap = new RedeliveryPolicyMap();
|
||||
redeliveryPolicyMap.setDefaultEntry(brokerRedeliveryPolicy);
|
||||
redeliveryPlugin.setRedeliveryPolicyMap(redeliveryPolicyMap);
|
||||
|
||||
broker.setPlugins(new BrokerPlugin[]{redeliveryPlugin});
|
||||
|
||||
if (deleteMessages) {
|
||||
broker.setDeleteAllMessagesOnStartup(true);
|
||||
}
|
||||
broker.start();
|
||||
}
|
||||
|
||||
|
||||
private void stopBroker() throws Exception {
|
||||
if (broker != null)
|
||||
broker.stop();
|
||||
broker = null;
|
||||
}
|
||||
|
||||
protected ActiveMQConnectionFactory createConnectionFactory() throws Exception {
|
||||
return new ActiveMQConnectionFactory("vm://localhost");
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void setUp() throws Exception {
|
||||
super.setUp();
|
||||
startBroker(true);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void tearDown() throws Exception {
|
||||
stopBroker();
|
||||
super.tearDown();
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,73 @@
|
|||
/**
|
||||
* 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.util;
|
||||
|
||||
import junit.framework.TestCase;
|
||||
import org.apache.activemq.RedeliveryPolicy;
|
||||
import org.apache.activemq.broker.Broker;
|
||||
import org.apache.activemq.broker.BrokerService;
|
||||
import org.apache.activemq.broker.ErrorBroker;
|
||||
import org.apache.activemq.broker.region.policy.RedeliveryPolicyMap;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class RedeliveryPluginTest extends TestCase {
|
||||
private static final Logger LOG = LoggerFactory.getLogger(RedeliveryPluginTest.class);
|
||||
RedeliveryPlugin underTest = new RedeliveryPlugin();
|
||||
|
||||
public void testInstallPluginValidation() throws Exception {
|
||||
RedeliveryPolicyMap redeliveryPolicyMap = new RedeliveryPolicyMap();
|
||||
RedeliveryPolicy defaultEntry = new RedeliveryPolicy();
|
||||
defaultEntry.setInitialRedeliveryDelay(500);
|
||||
redeliveryPolicyMap.setDefaultEntry(defaultEntry);
|
||||
underTest.setRedeliveryPolicyMap(redeliveryPolicyMap);
|
||||
|
||||
final BrokerService brokerService = new BrokerService();
|
||||
brokerService.setSchedulerSupport(false);
|
||||
Broker broker = new ErrorBroker("hi") {
|
||||
@Override
|
||||
public BrokerService getBrokerService() {
|
||||
return brokerService;
|
||||
}
|
||||
};
|
||||
|
||||
try {
|
||||
underTest.installPlugin(broker);
|
||||
fail("expect exception on no scheduler support");
|
||||
} catch (Exception expected) {
|
||||
LOG.info("expected: " + expected);
|
||||
}
|
||||
|
||||
brokerService.setSchedulerSupport(true);
|
||||
try {
|
||||
underTest.installPlugin(broker);
|
||||
fail("expect exception on small initial delay");
|
||||
} catch (Exception expected) {
|
||||
LOG.info("expected: " + expected);
|
||||
}
|
||||
|
||||
defaultEntry.setInitialRedeliveryDelay(5000);
|
||||
defaultEntry.setRedeliveryDelay(500);
|
||||
brokerService.setSchedulerSupport(true);
|
||||
try {
|
||||
underTest.installPlugin(broker);
|
||||
fail("expect exception on small redelivery delay");
|
||||
} catch (Exception expected) {
|
||||
LOG.info("expected: " + expected);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue