Java tutorial
/* * 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.jmeter.protocol.http.util; import java.io.IOException; import java.net.InetAddress; import java.net.Socket; import java.net.URL; import java.net.URLConnection; import java.net.URLStreamHandler; import java.net.URLStreamHandlerFactory; import java.net.UnknownHostException; import org.apache.commons.httpclient.ConnectTimeoutException; import org.apache.commons.httpclient.params.HttpConnectionParams; import org.apache.commons.httpclient.protocol.Protocol; import org.apache.commons.httpclient.protocol.ProtocolSocketFactory; /** * Commons HttpClient protocol factory to generate Loopback HTTP sockets * @deprecated since 3.0, will be removed in next version */ @Deprecated public class LoopbackHttpClientSocketFactory implements ProtocolSocketFactory { public LoopbackHttpClientSocketFactory() { super(); } @Override public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort) throws IOException, UnknownHostException { return new LoopbackHTTPSocket(host, port, clientHost, clientPort); } @Override public Socket createSocket(String host, int port) throws IOException, UnknownHostException { return new LoopbackHTTPSocket(host, port); } @Override public Socket createSocket(String host, int port, InetAddress localAddress, int localPort, HttpConnectionParams params) throws IOException, UnknownHostException, ConnectTimeoutException { int timeout = params.getConnectionTimeout(); if (timeout == 0) { return new LoopbackHTTPSocket(host, port, localAddress, localPort); } else { return new LoopbackHTTPSocket(host, port, localAddress, localPort, timeout); } } /** * Convenience method to set up the necessary HttpClient protocol and URL handler. * * Only works for HttpClient, because it's not possible (or at least very difficult) * to provide a different socket factory for the HttpURLConnection class. */ public static void setup() { final String LOOPBACK = "loopback"; // $NON-NLS-1$ // This ensures tha HttpClient knows about the protocol Protocol.registerProtocol(LOOPBACK, new Protocol(LOOPBACK, new LoopbackHttpClientSocketFactory(), 1)); // Now allow the URL handling to work. URLStreamHandlerFactory ushf = new URLStreamHandlerFactory() { @Override public URLStreamHandler createURLStreamHandler(String protocol) { if (protocol.equalsIgnoreCase(LOOPBACK)) { return new URLStreamHandler() { @Override protected URLConnection openConnection(URL u) throws IOException { return null;// not needed for HttpClient } }; } return null; } }; java.net.URL.setURLStreamHandlerFactory(ushf); } }