| /************************************************************** |
| * |
| * 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 com.sun.star.lib.connections.socket; |
| |
| import com.sun.star.comp.loader.FactoryHelper; |
| import com.sun.star.connection.AlreadyAcceptingException; |
| import com.sun.star.connection.ConnectionSetupException; |
| import com.sun.star.connection.XAcceptor; |
| import com.sun.star.connection.XConnection; |
| import com.sun.star.lang.XMultiServiceFactory; |
| import com.sun.star.lang.XSingleServiceFactory; |
| import com.sun.star.registry.XRegistryKey; |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| |
| /** |
| * A component that implements the <code>XAcceptor</code> interface. |
| * |
| * <p>The <code>socketAcceptor</code> is a specialized component that uses TCP |
| * sockets for communication. The <code>socketAcceptor</code> is generally used |
| * by the <code>com.sun.star.connection.Acceptor</code> service.</p> |
| * |
| * @see com.sun.star.connections.XAcceptor |
| * @see com.sun.star.connections.XConnection |
| * @see com.sun.star.connections.XConnector |
| * @see com.sun.star.loader.JavaLoader |
| * |
| * @since UDK 1.0 |
| */ |
| public final class socketAcceptor implements XAcceptor { |
| /** |
| * The name of the service. |
| * |
| * <p>The <code>JavaLoader</code> acceses this through reflection.</p> |
| * |
| * @see com.sun.star.comp.loader.JavaLoader |
| */ |
| public static final String __serviceName |
| = "com.sun.star.connection.socketAcceptor"; |
| |
| /** |
| * Returns a factory for creating the service. |
| * |
| * <p>This method is called by the <code>JavaLoader</code>.</p> |
| * |
| * @param implName the name of the implementation for which a service is |
| * requested. |
| * @param multiFactory the service manager to be used (if needed). |
| * @param regKey the registry key. |
| * @return an <code>XSingleServiceFactory</code> for creating the component. |
| * |
| * @see com.sun.star.comp.loader.JavaLoader |
| */ |
| public static XSingleServiceFactory __getServiceFactory( |
| String implName, XMultiServiceFactory multiFactory, XRegistryKey regKey) |
| { |
| return implName.equals(socketAcceptor.class.getName()) |
| ? FactoryHelper.getServiceFactory(socketAcceptor.class, |
| __serviceName, multiFactory, |
| regKey) |
| : null; |
| } |
| |
| /** |
| * Accepts a connection request via the described socket. |
| * |
| * <p>This call blocks until a connection has been established.</p> |
| * |
| * <p>The connection description has the following format: |
| * <code><var>type</var></code><!-- |
| * -->*(<code><var>key</var>=<var>value</var></code>), |
| * where <code><var>type</var></code> should be <code>socket</code> |
| * (ignoring case). Supported keys (ignoring case) currently are |
| * <dl> |
| * <dt><code>host</code> |
| * <dd>The name or address of the accepting interface (defaults to |
| * <code>0</code>, meaning any interface). |
| * <dt><code>port</code> |
| * <dd>The TCP port number to accept on (defaults to <code>6001</code>). |
| * <dt><code>backlog</code> |
| * <dd>The maximum length of the acceptor's queue (defaults to |
| * <code>50</code>). |
| * <dt><code>tcpnodelay</code> |
| * <dd>A flag (<code>0</code>/<code>1</code>) enabling or disabling Nagle's |
| * algorithm on the resulting connection. |
| * </dl></p> |
| * |
| * @param connectionDescription the description of the connection. |
| * @return an <code>XConnection</code> to the client. |
| * |
| * @see com.sun.star.connections.XConnection |
| * @see com.sun.star.connections.XConnector |
| */ |
| public XConnection accept(String connectionDescription) throws |
| AlreadyAcceptingException, ConnectionSetupException, |
| com.sun.star.lang.IllegalArgumentException |
| { |
| ServerSocket serv; |
| synchronized (this) { |
| if (server == null) { |
| ConnectionDescriptor desc |
| = new ConnectionDescriptor(connectionDescription); |
| String host = desc.getHost(); |
| if (host.equals("0")) { |
| host = null; |
| } |
| if (DEBUG) { |
| System.err.println("##### " + getClass().getName() |
| + ".accept: creating ServerSocket " |
| + desc.getPort() + ", " |
| + desc.getBacklog() + ", " + host); |
| } |
| try { |
| server = new ServerSocket(desc.getPort(), desc.getBacklog(), |
| host == null ? null |
| : InetAddress.getByName(host)); |
| } catch (IOException e) { |
| throw new ConnectionSetupException(e.toString()); |
| } |
| acceptingDescription = connectionDescription; |
| tcpNoDelay = desc.getTcpNoDelay(); |
| } else if (!connectionDescription.equals(acceptingDescription)) { |
| throw new AlreadyAcceptingException(acceptingDescription |
| + " vs. " |
| + connectionDescription); |
| } |
| serv = server; |
| } |
| Socket socket; |
| try { |
| socket = serv.accept(); |
| if (DEBUG) { |
| System.err.println("##### " + getClass().getName() |
| + ".accept: accepted " + socket); |
| } |
| if (tcpNoDelay != null) { |
| socket.setTcpNoDelay(tcpNoDelay.booleanValue()); |
| } |
| return new SocketConnection(acceptingDescription, socket); |
| } |
| catch(IOException e) { |
| throw new ConnectionSetupException(e.toString()); |
| } |
| } |
| |
| // see com.sun.star.connection.XAcceptor#stopAccepting |
| public void stopAccepting() { |
| ServerSocket serv; |
| synchronized (this) { |
| serv = server; |
| } |
| try { |
| serv.close(); |
| } |
| catch (IOException e) { |
| throw new com.sun.star.uno.RuntimeException(e.toString()); |
| } |
| } |
| |
| private static final boolean DEBUG = false; |
| |
| private ServerSocket server = null; |
| private String acceptingDescription; |
| private Boolean tcpNoDelay; |
| } |