1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27 package org.apache.http.conn;
28
29 import java.io.IOException;
30 import java.io.InputStream;
31
32 import org.apache.http.util.Args;
33
34 /**
35 * Basic implementation of {@link EofSensorWatcher}. The underlying connection
36 * is released on close or EOF.
37 *
38 * @since 4.0
39 *
40 * @deprecated (4.3) do not use.
41 */
42 @Deprecated
43 public class BasicEofSensorWatcher implements EofSensorWatcher {
44
45 /** The connection to auto-release. */
46 protected final ManagedClientConnection managedConn;
47
48 /** Whether to keep the connection alive. */
49 protected final boolean attemptReuse;
50
51 /**
52 * Creates a new watcher for auto-releasing a connection.
53 *
54 * @param conn the connection to auto-release
55 * @param reuse whether the connection should be re-used
56 */
57 public BasicEofSensorWatcher(final ManagedClientConnection conn,
58 final boolean reuse) {
59 Args.notNull(conn, "Connection");
60 managedConn = conn;
61 attemptReuse = reuse;
62 }
63
64 @Override
65 public boolean eofDetected(final InputStream wrapped)
66 throws IOException {
67
68 try {
69 if (attemptReuse) {
70 // there may be some cleanup required, such as
71 // reading trailers after the response body:
72 wrapped.close();
73 managedConn.markReusable();
74 }
75 } finally {
76 managedConn.releaseConnection();
77 }
78 return false;
79 }
80
81 @Override
82 public boolean streamClosed(final InputStream wrapped)
83 throws IOException {
84
85 try {
86 if (attemptReuse) {
87 // this assumes that closing the stream will
88 // consume the remainder of the response body:
89 wrapped.close();
90 managedConn.markReusable();
91 }
92 } finally {
93 managedConn.releaseConnection();
94 }
95 return false;
96 }
97
98 @Override
99 public boolean streamAbort(final InputStream wrapped)
100 throws IOException {
101
102 managedConn.abortConnection();
103 return false;
104 }
105
106 }