001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.activemq.network; 018 019import java.net.URI; 020import java.util.HashMap; 021import java.util.LinkedHashSet; 022import java.util.ServiceLoader; 023import java.util.Set; 024 025import org.apache.activemq.transport.Transport; 026import org.apache.activemq.transport.TransportFactory; 027import org.apache.activemq.util.URISupport; 028 029/** 030 * Factory for network bridges 031 * 032 * 033 */ 034public final class NetworkBridgeFactory implements BridgeFactory { 035 036 public final static BridgeFactory INSTANCE = new NetworkBridgeFactory(); 037 038 private NetworkBridgeFactory() { 039 040 } 041 042 @Override 043 public DemandForwardingBridge createNetworkBridge(NetworkBridgeConfiguration configuration, Transport localTransport, Transport remoteTransport, NetworkBridgeListener listener) { 044 if (configuration.isConduitSubscriptions()) { 045 // dynamicOnly determines whether durables are auto bridged 046 return attachListener(new DurableConduitBridge(configuration, localTransport, remoteTransport), listener); 047 } 048 return attachListener(new DemandForwardingBridge(configuration, localTransport, remoteTransport), listener); 049 } 050 051 private DemandForwardingBridge attachListener(DemandForwardingBridge bridge, NetworkBridgeListener listener) { 052 if (listener != null) { 053 bridge.setNetworkBridgeListener(listener); 054 } 055 return bridge; 056 } 057 058 /** 059 * Create a network bridge 060 * 061 * @param configuration 062 * @param localTransport 063 * @param remoteTransport 064 * @param listener 065 * @return the NetworkBridge 066 */ 067 @Deprecated 068 public static DemandForwardingBridge createBridge(NetworkBridgeConfiguration configuration, 069 Transport localTransport, Transport remoteTransport, 070 final NetworkBridgeListener listener) { 071 return INSTANCE.createNetworkBridge(configuration, localTransport, remoteTransport, listener); 072 } 073 074 public static Transport createLocalTransport(NetworkBridgeConfiguration configuration, URI uri) throws Exception { 075 // one end of the localbroker<->bridge transport needs to be async to allow concurrent forwards and acks 076 return createLocalTransport(uri, !configuration.isDispatchAsync()); 077 } 078 079 public static Transport createLocalAsyncTransport(URI uri) throws Exception { 080 return createLocalTransport(uri, true); 081 } 082 083 private static Transport createLocalTransport(URI uri, boolean async) throws Exception { 084 HashMap<String, String> map = new HashMap<String, String>(URISupport.parseParameters(uri)); 085 map.put("async", String.valueOf(async)); 086 map.put("create", "false"); // we don't want a vm connect during shutdown to trigger a broker create 087 uri = URISupport.createURIWithQuery(uri, URISupport.createQueryString(map)); 088 return TransportFactory.connect(uri); 089 } 090 091}