SimpleConnManager xref

    1   /*
    2    * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/test/org/apache/commons/httpclient/server/SimpleConnManager.java,v 1.2 2004/11/20 17:56:40 olegk Exp $
    3    * $Revision: 480424 $
    4    * $Date: 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $
    5    *
    6    * ====================================================================
    7    *
    8    *  Licensed to the Apache Software Foundation (ASF) under one or more
    9    *  contributor license agreements.  See the NOTICE file distributed with
    10   *  this work for additional information regarding copyright ownership.
    11   *  The ASF licenses this file to You under the Apache License, Version 2.0
    12   *  (the "License"); you may not use this file except in compliance with
    13   *  the License.  You may obtain a copy of the License at
    14   *
    15   *      http://www.apache.org/licenses/LICENSE-2.0
    16   *
    17   *  Unless required by applicable law or agreed to in writing, software
    18   *  distributed under the License is distributed on an "AS IS" BASIS,
    19   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    20   *  See the License for the specific language governing permissions and
    21   *  limitations under the License.
    22   * ====================================================================
    23   *
    24   * This software consists of voluntary contributions made by many
    25   * individuals on behalf of the Apache Software Foundation.  For more
    26   * information on the Apache Software Foundation, please see
    27   * <http://www.apache.org/>.
    28   *
    29   */
    30
    31  package org.apache.commons.httpclient.server;
    32
    33  import java.io.IOException;
    34  import java.net.Socket;
    35  import java.util.HashMap;
    36  import java.util.Iterator;
    37  import java.util.Map;
    38
    39  /**
    40   * A REALLY simple connection manager.
    41   *
    42   * @author Oleg Kalnichevski
    43   */
    44  public class SimpleConnManager {
    45
    46      private Map connsets = new HashMap();
    47
    48      public SimpleConnManager() {
    49          super();
    50      }
    51
    52      public synchronized SimpleHttpServerConnection openConnection(final SimpleHost host)
    53          throws IOException {
    54          if (host == null) {
    55              throw new IllegalArgumentException("Host may not be null");
    56          }
    57          SimpleHttpServerConnection conn = null;
    58          SimpleConnList connlist = (SimpleConnList)this.connsets.get(host);
    59          if (connlist != null) {
    60              conn = connlist.removeFirst();
    61              if (conn != null && !conn.isOpen()) {
    62                  conn = null;
    63              }
    64          }
    65          if (conn == null) {
    66              Socket socket = new Socket(host.getHostName(), host.getPort());
    67              conn = new SimpleHttpServerConnection(socket);
    68          }
    69          return conn;
    70      }
    71
    72      public synchronized void releaseConnection(final SimpleHost host,
    73              final SimpleHttpServerConnection conn) throws IOException {
    74          if (host == null) {
    75              throw new IllegalArgumentException("Host may not be null");
    76          }
    77          if (conn == null) {
    78              return;
    79          }
    80          if (!conn.isKeepAlive()) {
    81              conn.close();
    82          }
    83          if (conn.isOpen()) {
    84              SimpleConnList connlist = (SimpleConnList)this.connsets.get(host);
    85              if (connlist == null) {
    86                  connlist = new SimpleConnList();
    87                  this.connsets.put(host, connlist);
    88              }
    89              connlist.addConnection(conn);
    90          }
    91      }
    92
    93      public synchronized void shutdown() {
    94          for (Iterator i = this.connsets.values().iterator(); i.hasNext();) {
    95              SimpleConnList connlist = (SimpleConnList) i.next();
    96              connlist.shutdown();
    97          }
    98          this.connsets.clear();
    99      }
    100
    101 }