| /** |
| * 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.plugin; |
| |
| import java.util.concurrent.ConcurrentLinkedQueue; |
| import java.util.concurrent.locks.ReentrantReadWriteLock; |
| import java.util.regex.Pattern; |
| |
| import javax.management.ObjectName; |
| |
| import org.apache.activemq.broker.Broker; |
| import org.apache.activemq.broker.BrokerFilter; |
| import org.apache.activemq.broker.ConnectionContext; |
| import org.apache.activemq.broker.region.Destination; |
| import org.apache.activemq.command.ActiveMQDestination; |
| import org.apache.activemq.command.ConnectionInfo; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class AbstractRuntimeConfigurationBroker extends BrokerFilter { |
| |
| public static final Logger LOG = LoggerFactory.getLogger(AbstractRuntimeConfigurationBroker.class); |
| protected final ReentrantReadWriteLock addDestinationBarrier = new ReentrantReadWriteLock(); |
| protected final ReentrantReadWriteLock addConnectionBarrier = new ReentrantReadWriteLock(); |
| protected Runnable monitorTask; |
| protected ConcurrentLinkedQueue<Runnable> addDestinationWork = new ConcurrentLinkedQueue<Runnable>(); |
| protected ConcurrentLinkedQueue<Runnable> addConnectionWork = new ConcurrentLinkedQueue<Runnable>(); |
| protected ObjectName objectName; |
| protected String infoString; |
| |
| public AbstractRuntimeConfigurationBroker(Broker next) { |
| super(next); |
| } |
| |
| @Override |
| public void start() throws Exception { |
| super.start(); |
| } |
| |
| @Override |
| public void stop() throws Exception { |
| if (monitorTask != null) { |
| try { |
| this.getBrokerService().getScheduler().cancel(monitorTask); |
| } catch (Exception letsNotStopStop) { |
| LOG.warn("Failed to cancel config monitor task", letsNotStopStop); |
| } |
| } |
| unregisterMbean(); |
| super.stop(); |
| } |
| |
| protected void registerMbean() { |
| |
| } |
| |
| protected void unregisterMbean() { |
| |
| } |
| |
| // modification to virtual destinations interceptor needs exclusive access to destination add |
| @Override |
| public Destination addDestination(ConnectionContext context, ActiveMQDestination destination, boolean createIfTemporary) throws Exception { |
| Runnable work = addDestinationWork.poll(); |
| if (work != null) { |
| try { |
| addDestinationBarrier.writeLock().lockInterruptibly(); |
| do { |
| work.run(); |
| work = addDestinationWork.poll(); |
| } while (work != null); |
| return super.addDestination(context, destination, createIfTemporary); |
| } finally { |
| addDestinationBarrier.writeLock().unlock(); |
| } |
| } else { |
| try { |
| addDestinationBarrier.readLock().lockInterruptibly(); |
| return super.addDestination(context, destination, createIfTemporary); |
| } finally { |
| addDestinationBarrier.readLock().unlock(); |
| } |
| } |
| } |
| |
| // modification to authentication plugin needs exclusive access to connection add |
| @Override |
| public void addConnection(ConnectionContext context, ConnectionInfo info) throws Exception { |
| Runnable work = addConnectionWork.poll(); |
| if (work != null) { |
| try { |
| addConnectionBarrier.writeLock().lockInterruptibly(); |
| do { |
| work.run(); |
| work = addConnectionWork.poll(); |
| } while (work != null); |
| super.addConnection(context, info); |
| } finally { |
| addConnectionBarrier.writeLock().unlock(); |
| } |
| } else { |
| try { |
| addConnectionBarrier.readLock().lockInterruptibly(); |
| super.addConnection(context, info); |
| } finally { |
| addConnectionBarrier.readLock().unlock(); |
| } |
| } |
| } |
| |
| /** |
| * Apply the destination work immediately instead of waiting for |
| * a connection add or destination add |
| * |
| * @throws Exception |
| */ |
| protected void applyDestinationWork() throws Exception { |
| Runnable work = addDestinationWork.poll(); |
| if (work != null) { |
| try { |
| addDestinationBarrier.writeLock().lockInterruptibly(); |
| do { |
| work.run(); |
| work = addDestinationWork.poll(); |
| } while (work != null); |
| } finally { |
| addDestinationBarrier.writeLock().unlock(); |
| } |
| } |
| } |
| |
| public void debug(String s) { |
| LOG.debug(s); |
| } |
| |
| public void info(String s) { |
| LOG.info(filterPasswords(s)); |
| if (infoString != null) { |
| infoString += s; |
| infoString += ";"; |
| } |
| } |
| |
| public void info(String s, Throwable t) { |
| LOG.info(filterPasswords(s), t); |
| if (infoString != null) { |
| infoString += s; |
| infoString += ", " + t; |
| infoString += ";"; |
| } |
| } |
| |
| Pattern matchPassword = Pattern.compile("password=.*,"); |
| protected String filterPasswords(Object toEscape) { |
| return matchPassword.matcher(toEscape.toString()).replaceAll("password=???,"); |
| } |
| |
| } |