1   /*
2    * $HeadURL: https://svn.apache.org/repos/asf/httpcomponents/oac.hc3x/trunk/src/test/org/apache/commons/httpclient/NoHostHttpConnectionManager.java $
3    * $Revision: 1425331 $
4    * $Date: 2012-12-22 19:29:41 +0100 (Sat, 22 Dec 2012) $
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   * [Additional notices, if required by prior licensing conditions]
30   *
31   */
32   
33  package org.apache.commons.httpclient;
34  
35  import java.io.IOException;
36  import java.io.InputStream;
37  
38  import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
39  
40  /***
41   */
42  public class NoHostHttpConnectionManager implements HttpConnectionManager {
43  
44      private HttpConnection connection;
45      
46      private boolean connectionReleased = false;
47      
48      private HttpConnectionManagerParams params = new HttpConnectionManagerParams(); 
49      
50      public NoHostHttpConnectionManager() { 
51          super();
52      }
53  
54      /***
55       * This method currently does nothing.
56       */
57      public void closeIdleConnections(long idleTimeout) {
58      }
59  
60      /***
61       * @return
62       */
63      public boolean isConnectionReleased() {
64          return connectionReleased;
65      }
66      
67      /***
68       * @param connection
69       */
70      public void setConnection(HttpConnection connection) {
71          this.connection = connection;
72          connection.setHttpConnectionManager(this);
73          connection.getParams().setDefaults(this.params);
74      }
75  
76      public HttpConnection getConnection(HostConfiguration hostConfiguration) {
77          
78          // make sure the host and proxy are correct for this connection
79          // close it and set the values if they are not
80          if (!hostConfiguration.hostEquals(connection)
81              || !hostConfiguration.proxyEquals(connection)) {
82                  
83              if (connection.isOpen()) {
84                  connection.close();
85              }
86  
87              connection.setHost(hostConfiguration.getHost());
88              connection.setPort(hostConfiguration.getPort());
89              connection.setProtocol(hostConfiguration.getProtocol());
90              connection.setLocalAddress(hostConfiguration.getLocalAddress());
91  
92              connection.setProxyHost(hostConfiguration.getProxyHost());
93              connection.setProxyPort(hostConfiguration.getProxyPort());
94          } else {
95              finishLastResponse(connection);
96          }
97          
98          connectionReleased = false;
99          return connection;
100     }
101 
102     /***
103      * @deprecated
104      */
105     public HttpConnection getConnection(HostConfiguration hostConfiguration, long timeout)
106         throws HttpException {
107         return getConnection(hostConfiguration);
108     }
109 
110     public HttpConnection getConnectionWithTimeout(
111         HostConfiguration hostConfiguration,
112         long timeout)
113         throws ConnectionPoolTimeoutException {
114         return getConnection(hostConfiguration);
115     }
116 
117     public void releaseConnection(HttpConnection conn) {
118         if (conn != connection) {
119             throw new IllegalStateException("Unexpected close on a different connection.");
120         }
121         
122         connectionReleased = true;
123         finishLastResponse(connection);
124     }
125 
126     /***
127      * Since the same connection is about to be reused, make sure the
128      * previous request was completely processed, and if not
129      * consume it now.
130      * @param conn The connection
131      */
132     static void finishLastResponse(HttpConnection conn) {
133         InputStream lastResponse = conn.getLastResponseInputStream();
134         if (lastResponse != null) {
135             conn.setLastResponseInputStream(null);
136             try {
137                 lastResponse.close();
138             } catch (IOException ioe) {
139                 //FIXME: badness - close to force reconnect.
140                 conn.close();
141             }
142         }
143     }
144 
145     public HttpConnectionManagerParams getParams() {
146         return this.params;
147     }
148 
149     public void setParams(final HttpConnectionManagerParams params) {
150         if (params == null) {
151             throw new IllegalArgumentException("Parameters may not be null");
152         }
153         this.params = params;
154     }
155 
156 }