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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.conn;
29  
30  import org.apache.http.annotation.NotThreadSafe;
31  
32  import java.io.IOException;
33  import java.io.OutputStream;
34  
35  /**
36   * Internal class.
37   *
38   * @since 4.3
39   */
40  @NotThreadSafe
41  class LoggingOutputStream extends OutputStream {
42  
43      private final OutputStream out;
44      private final Wire wire;
45  
46      public LoggingOutputStream(final OutputStream out, final Wire wire) {
47          super();
48          this.out = out;
49          this.wire = wire;
50      }
51  
52      @Override
53      public void write(final int b) throws IOException {
54          try {
55              wire.output(b);
56          } catch (IOException ex) {
57              wire.output("[write] I/O error: " + ex.getMessage());
58              throw ex;
59          }
60      }
61  
62      @Override
63      public void write(final byte[] b) throws IOException {
64          try {
65              wire.output(b);
66              out.write(b);
67          } catch (IOException ex) {
68              wire.output("[write] I/O error: " + ex.getMessage());
69              throw ex;
70          }
71      }
72  
73      @Override
74      public void write(final byte[] b, final int off, final int len) throws IOException {
75          try {
76              wire.output(b, off, len);
77              out.write(b, off, len);
78          } catch (IOException ex) {
79              wire.output("[write] I/O error: " + ex.getMessage());
80              throw ex;
81          }
82      }
83  
84      @Override
85      public void flush() throws IOException {
86          try {
87              out.flush();
88          } catch (IOException ex) {
89              wire.output("[flush] I/O error: " + ex.getMessage());
90              throw ex;
91          }
92      }
93  
94      @Override
95      public void close() throws IOException {
96          try {
97              out.close();
98          } catch (IOException ex) {
99              wire.output("[close] I/O error: " + ex.getMessage());
100             throw ex;
101         }
102     }
103 
104 }