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