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
28 package org.apache.http.impl.io;
29
30 import java.io.IOException;
31 import java.net.Socket;
32 import java.net.SocketTimeoutException;
33
34 import org.apache.http.annotation.NotThreadSafe;
35 import org.apache.http.io.EofSensor;
36 import org.apache.http.io.SessionInputBuffer;
37 import org.apache.http.params.HttpParams;
38 import org.apache.http.util.Args;
39
40 /**
41 * {@link SessionInputBuffer} implementation bound to a {@link Socket}.
42 *
43 * @since 4.0
44 *
45 * @deprecated (4.3) use {@link SessionInputBufferImpl}
46 */
47 @NotThreadSafe
48 @Deprecated
49 public class SocketInputBuffer extends AbstractSessionInputBuffer implements EofSensor {
50
51 private final Socket socket;
52
53 private boolean eof;
54
55 /**
56 * Creates an instance of this class.
57 *
58 * @param socket the socket to read data from.
59 * @param buffersize the size of the internal buffer. If this number is less
60 * than <code>0</code> it is set to the value of
61 * {@link Socket#getReceiveBufferSize()}. If resultant number is less
62 * than <code>1024</code> it is set to <code>1024</code>.
63 * @param params HTTP parameters.
64 */
65 public SocketInputBuffer(
66 final Socket socket,
67 int buffersize,
68 final HttpParams params) throws IOException {
69 super();
70 Args.notNull(socket, "Socket");
71 this.socket = socket;
72 this.eof = false;
73 if (buffersize < 0) {
74 buffersize = socket.getReceiveBufferSize();
75 }
76 if (buffersize < 1024) {
77 buffersize = 1024;
78 }
79 init(socket.getInputStream(), buffersize, params);
80 }
81
82 @Override
83 protected int fillBuffer() throws IOException {
84 final int i = super.fillBuffer();
85 this.eof = i == -1;
86 return i;
87 }
88
89 public boolean isDataAvailable(final int timeout) throws IOException {
90 boolean result = hasBufferedData();
91 if (!result) {
92 final int oldtimeout = this.socket.getSoTimeout();
93 try {
94 this.socket.setSoTimeout(timeout);
95 fillBuffer();
96 result = hasBufferedData();
97 } catch (final SocketTimeoutException ex) {
98 throw ex;
99 } finally {
100 socket.setSoTimeout(oldtimeout);
101 }
102 }
103 return result;
104 }
105
106 public boolean isEof() {
107 return this.eof;
108 }
109
110 }