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Java example source code file (MultihomePlainSocketFactory.java)
The MultihomePlainSocketFactory.java example 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. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.http.conn; import java.io.IOException; import java.net.InetAddress; import java.net.InetSocketAddress; import java.net.Socket; import java.net.SocketTimeoutException; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Arrays; import org.apache.http.annotation.Immutable; import org.apache.http.conn.scheme.SocketFactory; import org.apache.http.params.HttpConnectionParams; import org.apache.http.params.HttpParams; /** * Socket factory that implements a simple multi-home fail-over on connect failure, * provided the same hostname resolves to multiple {@link InetAddress}es. Please note * the {@link #connectSocket(Socket, String, int, InetAddress, int, HttpParams)} * method cannot be reliably interrupted by closing the socket returned by the * {@link #createSocket()} method. * * @since 4.0 */ @Immutable public final class MultihomePlainSocketFactory implements SocketFactory { /** * The factory singleton. */ private static final MultihomePlainSocketFactory DEFAULT_FACTORY = new MultihomePlainSocketFactory(); /** * Gets the singleton instance of this class. * @return the one and only plain socket factory */ public static MultihomePlainSocketFactory getSocketFactory() { return DEFAULT_FACTORY; } /** * Restricted default constructor. */ private MultihomePlainSocketFactory() { super(); } // non-javadoc, see interface org.apache.http.conn.SocketFactory public Socket createSocket() { return new Socket(); } /** * Attempts to connects the socket to any of the {@link InetAddress}es the * given host name resolves to. If connection to all addresses fail, the * last I/O exception is propagated to the caller. * * @param sock socket to connect to any of the given addresses * @param host Host name to connect to * @param port the port to connect to * @param localAddress local address * @param localPort local port * @param params HTTP parameters * * @throws IOException if an error occurs during the connection * @throws SocketTimeoutException if timeout expires before connecting */ public Socket connectSocket(Socket sock, String host, int port, InetAddress localAddress, int localPort, HttpParams params) throws IOException { if (host == null) { throw new IllegalArgumentException("Target host may not be null."); } if (params == null) { throw new IllegalArgumentException("Parameters may not be null."); } if (sock == null) sock = createSocket(); if ((localAddress != null) || (localPort > 0)) { // we need to bind explicitly if (localPort < 0) localPort = 0; // indicates "any" InetSocketAddress isa = new InetSocketAddress(localAddress, localPort); sock.bind(isa); } int timeout = HttpConnectionParams.getConnectionTimeout(params); InetAddress[] inetadrs = InetAddress.getAllByName(host); List<InetAddress> addresses = new ArrayList Other Java examples (source code examples)Here is a short list of links related to this Java MultihomePlainSocketFactory.java source code file: |
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