| /* |
| * |
| * 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.qpid.transport.network; |
| |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.qpid.transport.TransportException; |
| |
| /** |
| * Loads the network transport class. |
| */ |
| public class Transport |
| { |
| public static final String TCP = "tcp"; |
| public static final String UDP = "udp"; |
| public static final String VM = "vm"; |
| public static final String SOCKET = "socket"; |
| public static final String MULTICAST = "multicast"; // TODO |
| |
| public static final int DEFAULT_BUFFER_SIZE = 32 * 1024; |
| public static final long DEFAULT_TIMEOUT = 60000; |
| |
| public static final boolean WINDOWS = ((String) System.getProperties().get("os.name")).matches("(?i).*windows.*"); |
| |
| public static final String MINA_TRANSPORT = "org.apache.qpid.transport.network.mina.MinaNetworkTransport"; |
| public static final String IO_TRANSPORT = "org.apache.qpid.transport.network.io.IoNetworkTransport"; |
| public static final String NIO_TRANSPORT = "org.apache.qpid.transport.network.nio.NioNetworkTransport"; // TODO |
| public static final String NETTY_TRANSPORT = "org.apache.qpid.transport.network.netty.NettyNetworkTransport"; // TODO |
| |
| private static final List<String> _incoming = new LinkedList<String>(); |
| private static final List<String> _outgoing = new LinkedList<String>(); |
| |
| public static void registerIncomingTransport(Class<? extends IncomingNetworkTransport> transport) |
| { |
| registerTransport(_incoming, transport.getName()); |
| } |
| |
| public static void registerIncomingTransport(String transport) |
| { |
| registerTransport(_incoming, transport); |
| } |
| |
| public static void registerOutgoingTransport(Class<? extends OutgoingNetworkTransport> transport) |
| { |
| registerTransport(_outgoing, transport.getName()); |
| } |
| |
| public static void registerOutgoingTransport(String transport) |
| { |
| registerTransport(_outgoing, transport); |
| } |
| |
| private static void registerTransport(List<String> registered, String transport) |
| { |
| registered.add(transport); |
| } |
| |
| public static IncomingNetworkTransport getIncomingTransport() throws TransportException |
| { |
| return (IncomingNetworkTransport) getTransport("incoming", _incoming, MINA_TRANSPORT, null); |
| } |
| |
| public static OutgoingNetworkTransport getOutgoingTransport() throws TransportException |
| { |
| return (OutgoingNetworkTransport) getTransport("outgoing", _outgoing, MINA_TRANSPORT, null); |
| } |
| |
| public static OutgoingNetworkTransport getOutgoingTransport(String protocol) throws TransportException |
| { |
| return (OutgoingNetworkTransport) getTransport("outgoing", _outgoing, IO_TRANSPORT, protocol); |
| } |
| |
| private static NetworkTransport getTransport(String direction, List<String> registered, String defaultTransport, String protocol) |
| { |
| for (String transport : registered) |
| { |
| try |
| { |
| Class<?> clazz = Class.forName(transport); |
| NetworkTransport network = (NetworkTransport) clazz.newInstance(); |
| if (protocol == null || network.isCompatible(protocol)) |
| { |
| return network; |
| } |
| } |
| catch (Exception e) |
| { |
| // Ignore and move to next class |
| } |
| } |
| |
| try |
| { |
| String transport = System.getProperty("qpid.transport." + direction, defaultTransport); |
| Class<?> clazz = Class.forName(transport); |
| NetworkTransport network = (NetworkTransport) clazz.newInstance(); |
| if (protocol == null || network.isCompatible(protocol)) |
| { |
| return network; |
| } |
| } |
| catch (Exception e) |
| { |
| throw new TransportException("Error while creating a new " + direction + " transport instance", e); |
| } |
| |
| throw new TransportException("Cannot create " + direction + " transport supporting " + protocol); |
| } |
| } |