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https://issues.apache.org/jira/browse/AMQ-5218 - DestinationsPlugin
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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 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.region.Destination;
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import org.apache.activemq.command.ActiveMQDestination;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.*;
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import java.util.Arrays;
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import java.util.HashSet;
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/**
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*
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* A simple plugin that can be used to export/import runtime destinations. It's useful in security constrained
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* environments where you want to create destinations only through the management APIs and be able to
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* replicate them to another broker
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*
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* @org.apache.xbean.XBean element="destinationsPlugin"
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*/
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public class DestinationsPlugin extends BrokerPluginSupport {
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private static Logger LOG = LoggerFactory.getLogger(DestinationsPlugin.class);
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HashSet<ActiveMQDestination> destinations = new HashSet<ActiveMQDestination>();
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File location;
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@Override
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public Destination addDestination(ConnectionContext context, ActiveMQDestination destination, boolean createIfTemporary) throws Exception {
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destinations.add(destination);
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return super.addDestination(context, destination, createIfTemporary);
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}
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@Override
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public void removeDestination(ConnectionContext context, ActiveMQDestination destination, long timeout) throws Exception {
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super.removeDestination(context, destination, timeout);
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destinations.remove(destination);
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}
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@Override
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public void start() throws Exception {
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super.start();
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if (location == null) {
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location = new File(getBrokerService().getBrokerDataDirectory(), "destinations");
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}
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importDestinations();
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destinations.addAll(Arrays.asList(getBrokerService().getBroker().getDestinations()));
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}
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@Override
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public void stop() throws Exception {
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super.stop();
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exportDestinations();
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}
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protected void importDestinations() throws Exception {
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BufferedReader reader = null;
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try {
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if (location.exists()) {
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reader = new BufferedReader(new FileReader(location));
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String destination;
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Broker broker = getBrokerService().getBroker();
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while ((destination = reader.readLine()) != null) {
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broker.addDestination(getBrokerService().getAdminConnectionContext(),
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ActiveMQDestination.createDestination(destination, ActiveMQDestination.QUEUE_TYPE),
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true);
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}
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}
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} catch (Exception e) {
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LOG.warn("Exception loading destinations", e);
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} finally {
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if (reader != null) {
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reader.close();
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}
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}
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}
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protected void exportDestinations() throws Exception {
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PrintWriter pw = null;
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try {
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location.getParentFile().mkdirs();
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FileOutputStream fos = new FileOutputStream(location);
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pw = new PrintWriter(fos);
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for (ActiveMQDestination destination : destinations) {
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pw.println(destination);
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}
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} catch (Exception e) {
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LOG.warn("Exception saving destinations", e);
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} finally {
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if (pw != null) {
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pw.close();
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}
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}
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}
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public File getLocation() {
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return location;
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}
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public void setLocation(File location) {
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this.location = location;
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}
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}
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@ -0,0 +1,80 @@
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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 org.apache.activemq.broker.BrokerPlugin;
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import org.apache.activemq.broker.BrokerService;
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import org.apache.activemq.broker.jmx.BrokerView;
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import org.apache.activemq.command.ActiveMQDestination;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import static junit.framework.Assert.assertEquals;
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public class DestinationsPluginTest {
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BrokerService broker;
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@Before
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public void setUp() throws Exception {
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broker = createBroker();
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broker.start();
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broker.waitUntilStarted();
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}
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@After
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public void shutdown() throws Exception {
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broker.stop();
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broker.waitUntilStopped();
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}
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protected BrokerService createBroker() {
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BrokerService broker = new BrokerService();
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broker.setPersistent(false);
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broker.setUseJmx(true);
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broker.setPlugins(new BrokerPlugin[]{new DestinationsPlugin()});
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broker.setDataDirectory("target/test");
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return broker;
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}
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@Test
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public void testDestinationSave() throws Exception {
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BrokerView brokerView = broker.getAdminView();
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brokerView.addQueue("test-queue");
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broker.stop();
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broker.waitUntilStopped();
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broker = createBroker();
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broker.start();
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broker.waitUntilStarted();
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ActiveMQDestination[] destinations = broker.getRegionBroker().getDestinations();
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for (ActiveMQDestination destination : destinations) {
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if (destination.isQueue()) {
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assertEquals("test-queue", destination.getPhysicalName());
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}
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}
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}
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}
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