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ActiveMQ example source code file (ConduitBridge.java)
The ActiveMQ ConduitBridge.java source code/** * 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.network; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.Iterator; import java.util.List; import org.apache.activemq.command.BrokerId; import org.apache.activemq.command.ConsumerId; import org.apache.activemq.command.ConsumerInfo; import org.apache.activemq.filter.DestinationFilter; import org.apache.activemq.transport.Transport; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Consolidates subscriptions * * */ public class ConduitBridge extends DemandForwardingBridge { private static final Logger LOG = LoggerFactory.getLogger(ConduitBridge.class); /** * Constructor * * @param localBroker * @param remoteBroker */ public ConduitBridge(NetworkBridgeConfiguration configuration, Transport localBroker, Transport remoteBroker) { super(configuration, localBroker, remoteBroker); } @Override protected DemandSubscription createDemandSubscription(ConsumerInfo info) throws IOException { if (addToAlreadyInterestedConsumers(info)) { return null; // don't want this subscription added } //add our original id to ourselves info.addNetworkConsumerId(info.getConsumerId()); info.setSelector(null); return doCreateDemandSubscription(info); } protected boolean checkPaths(BrokerId[] first, BrokerId[] second) { if (first == null || second == null) return true; if (Arrays.equals(first, second)) return true; if (first[0].equals(second[0]) && first[first.length - 1].equals(second[second.length - 1])) return false; else return true; } protected boolean addToAlreadyInterestedConsumers(ConsumerInfo info) { // search through existing subscriptions and see if we have a match boolean matched = false; for (Iterator i = subscriptionMapByLocalId.values().iterator(); i.hasNext();) { DemandSubscription ds = (DemandSubscription)i.next(); DestinationFilter filter = DestinationFilter.parseFilter(ds.getLocalInfo().getDestination()); if (filter.matches(info.getDestination())) { if (LOG.isDebugEnabled()) { LOG.debug(configuration.getBrokerName() + " matched (add interest) to exsting sub for: " + ds.getRemoteInfo() + " with sub: " + info.getConsumerId()); } // add the interest in the subscription // ds.add(ds.getRemoteInfo().getConsumerId()); if (checkPaths(info.getBrokerPath(), ds.getRemoteInfo().getBrokerPath())) { ds.add(info.getConsumerId()); } matched = true; // continue - we want interest to any existing // DemandSubscriptions } } return matched; } @Override protected void removeDemandSubscription(ConsumerId id) throws IOException { List<DemandSubscription> tmpList = new ArrayList Other ActiveMQ examples (source code examples)Here is a short list of links related to this ActiveMQ ConduitBridge.java source code file: |
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