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Java > Open Source Codes > com > caucho > server > connection > StreamWrapperResponseStream


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.server.connection;
30
31 import com.caucho.log.Log;
32 import com.caucho.util.L10N;
33
34 import java.io.IOException JavaDoc;
35 import java.io.OutputStream JavaDoc;
36 import java.util.logging.Logger JavaDoc;
37
38 public class StreamWrapperResponseStream extends ToByteResponseStream {
39   static final Logger JavaDoc log = Log.open(StreamWrapperResponseStream.class);
40   
41   static final L10N L = new L10N(StreamWrapperResponseStream.class);
42
43   private OutputStream JavaDoc _os;
44   
45   public StreamWrapperResponseStream()
46   {
47   }
48
49   public void init(OutputStream JavaDoc os)
50   {
51     _os = os;
52   }
53
54   /**
55    * Writes the next chunk of data to the response stream.
56    *
57    * @param buf the buffer containing the data
58    * @param offset start offset into the buffer
59    * @param length length of the data in the buffer
60    */
61   protected void writeNext(byte []buf, int offset, int length, boolean isEnd)
62     throws IOException JavaDoc
63   {
64     if (_os != null)
65       _os.write(buf, offset, length);
66   }
67
68   /**
69    * flushing
70    */
71   public void flush()
72     throws IOException JavaDoc
73   {
74     flushBuffer();
75
76     if (_os != null)
77       _os.flush();
78   }
79
80   /**
81    * Finish.
82    */
83   public void finish()
84     throws IOException JavaDoc
85   {
86     flushBuffer();
87
88     /*
89     if (_writer != null)
90       _writer.flush();
91     
92     if (_os != null)
93       _os.flush();
94     */
95
96     _os = null;
97   }
98
99   /**
100    * Close.
101    */
102   public void close()
103     throws IOException JavaDoc
104   {
105     super.close();
106
107     /*
108     if (_writer != null)
109       _writer.close();
110     
111     if (_os != null)
112       _os.close();
113     */
114
115     _os = null;
116   }
117 }
118
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