1   /*
2    * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/test/org/apache/commons/httpclient/server/SimpleConnList.java,v 1.1 2004/11/13 12:21:28 olegk Exp $
3    * $Revision: 155418 $
4    * $Date: 2005-02-26 08:01:52 -0500 (Sat, 26 Feb 2005) $
5    *
6    * ====================================================================
7    *
8    *  Copyright 1999-2004 The Apache Software Foundation
9    *
10   *  Licensed under the Apache License, Version 2.0 (the "License");
11   *  you may not use this file except in compliance with the License.
12   *  You may obtain a copy of the License at
13   *
14   *      http://www.apache.org/licenses/LICENSE-2.0
15   *
16   *  Unless required by applicable law or agreed to in writing, software
17   *  distributed under the License is distributed on an "AS IS" BASIS,
18   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19   *  See the License for the specific language governing permissions and
20   *  limitations under the License.
21   * ====================================================================
22   *
23   * This software consists of voluntary contributions made by many
24   * individuals on behalf of the Apache Software Foundation.  For more
25   * information on the Apache Software Foundation, please see
26   * <http://www.apache.org/>.
27   *
28   */
29  
30  package org.apache.commons.httpclient.server;
31  
32  import java.util.ArrayList;
33  import java.util.Iterator;
34  import java.util.List;
35  
36  import org.apache.commons.logging.Log;
37  import org.apache.commons.logging.LogFactory;
38  
39  /***
40   * A simple list of connections.
41   * 
42   * @author Oleg Kalnichevski
43   */
44  public class SimpleConnList {
45      
46      private static final Log LOG = LogFactory.getLog(SimpleConnList.class);
47      
48      private List connections = new ArrayList();
49      
50      public SimpleConnList() {
51          super();
52      }
53  
54      public synchronized void addConnection(final SimpleHttpServerConnection conn) {
55          this.connections.add(conn);
56      }
57      
58      public synchronized void removeConnection(final SimpleHttpServerConnection conn) {
59          this.connections.remove(conn);
60      }
61  
62      public synchronized SimpleHttpServerConnection removeLast() {
63          int s = this.connections.size(); 
64          if (s > 0) {
65              return (SimpleHttpServerConnection)this.connections.remove(s - 1);
66          } else {
67              return null;
68          }
69      }
70  
71      public synchronized SimpleHttpServerConnection removeFirst() {
72          int s = this.connections.size(); 
73          if (s > 0) {
74              return (SimpleHttpServerConnection)this.connections.remove(0);
75          } else {
76              return null;
77          }
78      }
79  
80      public synchronized void shutdown() {
81          for (Iterator i = this.connections.iterator(); i.hasNext();) {
82              SimpleHttpServerConnection conn = (SimpleHttpServerConnection) i.next();
83              conn.close();
84          }
85          this.connections.clear();
86      }
87  
88  }