1 /*
2 * Copyright (c) 2001-2004,
3 * RedVerst Group, ISP RAS http://www.ispras.ru
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this
10 * list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * 3. The names "ATP", "TreeDL", "RedVerst", "ISP RAS"
17 * may not be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
27 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 package com.unitesk.atp.text.filters;
33
34 import java.io.IOException;
35 import java.io.Writer;
36
37 /***
38 * {@link TextReceiver Text receiver} that prints text to {@link Writer}
39 *
40 * @author <A href="mailto:demakov@ispras.ru">Alexey Demakov</A>
41 * @version $Id: WriterTextReceiver.java,v 1.2 2004/10/11 15:00:42 all-x Exp $
42 */
43 public class WriterTextReceiver implements TextReceiver
44 {
45 /***
46 * Constructs text receiver with the specified Writer and {@link ExceptionHandler}.
47 *
48 * @param writer The client to write to.
49 * @param exceptionHandler
50 * The exception handler.
51 */
52 public WriterTextReceiver( Writer writer
53 , ExceptionHandler exceptionHandler
54 )
55 {
56 this.writer = writer;
57 this.exceptionHandler = exceptionHandler;
58 }
59
60 /***
61 * Close underlying {@link Writer}
62 */
63 public void close()
64 {
65 try
66 {
67 writer.close();
68 }
69 catch( IOException e )
70 {
71 exceptionHandler.process( e );
72 }
73 }
74
75 //--------------------------------------------------------------------------
76 // interface TextReceiver
77
78 /***
79 * Passes the specified string to the underlying {@link Writer}
80 *
81 * @param s The string to write.
82 */
83 public void txt( String s )
84 {
85 try
86 {
87 writer.write( s );
88 }
89 catch( IOException e )
90 {
91 exceptionHandler.process( e );
92 }
93 }
94
95 /***
96 * Passes a line separator to underlying {@link Writer}
97 */
98 public void nl()
99 {
100 try
101 {
102 writer.write( endl );
103 }
104 catch( IOException e )
105 {
106 exceptionHandler.process( e );
107 }
108 }
109
110 //--------------------------------------------------------------------------
111 // implementation
112
113 private Writer writer;
114 private ExceptionHandler exceptionHandler;
115 private static final String endl = System.getProperty( "line.separator" );
116 }