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.annotation.NotThreadSafe;
33 import org.apache.http.util.Args;
34
35 /**
36 * Basic implementation of {@link EofSensorWatcher}. The underlying connection
37 * is released on close or EOF.
38 *
39 * @since 4.0
40 *
41 * @deprecated (4.3) do not use.
42 */
43 @Deprecated
44 @NotThreadSafe
45 public class BasicEofSensorWatcher implements EofSensorWatcher {
46
47 /** The connection to auto-release. */
48 protected final ManagedClientConnection managedConn;
49
50 /** Whether to keep the connection alive. */
51 protected final boolean attemptReuse;
52
53 /**
54 * Creates a new watcher for auto-releasing a connection.
55 *
56 * @param conn the connection to auto-release
57 * @param reuse whether the connection should be re-used
58 */
59 public BasicEofSensorWatcher(final ManagedClientConnection conn,
60 final boolean reuse) {
61 Args.notNull(conn, "Connection");
62 managedConn = conn;
63 attemptReuse = reuse;
64 }
65
66 public boolean eofDetected(final InputStream wrapped)
67 throws IOException {
68
69 try {
70 if (attemptReuse) {
71 // there may be some cleanup required, such as
72 // reading trailers after the response body:
73 wrapped.close();
74 managedConn.markReusable();
75 }
76 } finally {
77 managedConn.releaseConnection();
78 }
79 return false;
80 }
81
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 public boolean streamAbort(final InputStream wrapped)
99 throws IOException {
100
101 managedConn.abortConnection();
102 return false;
103 }
104
105 }