| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/conn/scheme/PlainSocketFactory.java $ |
| * $Revision: 659194 $ |
| * $Date: 2008-05-22 11:33:47 -0700 (Thu, 22 May 2008) $ |
| * |
| * ==================================================================== |
| * 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.scheme; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.Socket; |
| import java.net.SocketTimeoutException; |
| |
| import org.apache.http.conn.ConnectTimeoutException; |
| import org.apache.http.params.HttpConnectionParams; |
| import org.apache.http.params.HttpParams; |
| |
| /** |
| * The default class for creating sockets. |
| * |
| * @author <a href="mailto:rolandw at apache.org">Roland Weber</a> |
| * @author Michael Becke |
| */ |
| public final class PlainSocketFactory implements SocketFactory { |
| |
| /** |
| * The factory singleton. |
| */ |
| private static final |
| PlainSocketFactory DEFAULT_FACTORY = new PlainSocketFactory(); |
| |
| private final HostNameResolver nameResolver; |
| |
| /** |
| * Gets the singleton instance of this class. |
| * @return the one and only plain socket factory |
| */ |
| public static PlainSocketFactory getSocketFactory() { |
| return DEFAULT_FACTORY; |
| } |
| |
| public PlainSocketFactory(final HostNameResolver nameResolver) { |
| super(); |
| this.nameResolver = nameResolver; |
| } |
| |
| |
| public PlainSocketFactory() { |
| this(null); |
| } |
| |
| // non-javadoc, see interface org.apache.http.conn.SocketFactory |
| public Socket createSocket() { |
| return new Socket(); |
| } |
| |
| // non-javadoc, see interface org.apache.http.conn.SocketFactory |
| 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); |
| |
| InetSocketAddress remoteAddress; |
| if (this.nameResolver != null) { |
| remoteAddress = new InetSocketAddress(this.nameResolver.resolve(host), port); |
| } else { |
| remoteAddress = new InetSocketAddress(host, port); |
| } |
| try { |
| sock.connect(remoteAddress, timeout); |
| } catch (SocketTimeoutException ex) { |
| throw new ConnectTimeoutException("Connect to " + remoteAddress + " timed out"); |
| } |
| return sock; |
| |
| } // connectSocket |
| |
| |
| /** |
| * Checks whether a socket connection is secure. |
| * This factory creates plain socket connections |
| * which are not considered secure. |
| * |
| * @param sock the connected socket |
| * |
| * @return <code>false</code> |
| * |
| * @throws IllegalArgumentException if the argument is invalid |
| */ |
| public final boolean isSecure(Socket sock) |
| throws IllegalArgumentException { |
| |
| if (sock == null) { |
| throw new IllegalArgumentException("Socket may not be null."); |
| } |
| // This class check assumes that createSocket() calls the constructor |
| // directly. If it was using javax.net.SocketFactory, we couldn't make |
| // an assumption about the socket class here. |
| if (sock.getClass() != Socket.class) { |
| throw new IllegalArgumentException |
| ("Socket not created by this factory."); |
| } |
| // This check is performed last since it calls a method implemented |
| // by the argument object. getClass() is final in java.lang.Object. |
| if (sock.isClosed()) { |
| throw new IllegalArgumentException("Socket is closed."); |
| } |
| |
| return false; |
| |
| } // isSecure |
| |
| |
| /** |
| * Compares this factory with an object. |
| * There is only one instance of this class. |
| * |
| * @param obj the object to compare with |
| * |
| * @return iff the argument is this object |
| */ |
| @Override |
| public boolean equals(Object obj) { |
| return (obj == this); |
| } |
| |
| /** |
| * Obtains a hash code for this object. |
| * All instances of this class have the same hash code. |
| * There is only one instance of this class. |
| */ |
| @Override |
| public int hashCode() { |
| return PlainSocketFactory.class.hashCode(); |
| } |
| |
| } |