KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > quercus > lib > file > FileWriteValue


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  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.quercus.lib.file;
31
32 import com.caucho.vfs.Path;
33 import com.caucho.vfs.WriteStream;
34
35 import java.io.IOException JavaDoc;
36 import java.util.logging.Level JavaDoc;
37 import java.util.logging.Logger JavaDoc;
38
39 /**
40  * Represents a PHP open file
41  */
42 public class FileWriteValue extends FileValue {
43   private static final Logger JavaDoc log
44     = Logger.getLogger(FileReadValue.class.getName());
45
46   private WriteStream _os;
47   private long _offset;
48
49   public FileWriteValue(Path path)
50     throws IOException JavaDoc
51   {
52     super(path);
53
54     _os = path.openWrite();
55   }
56
57   public FileWriteValue(Path path, boolean isAppend)
58     throws IOException JavaDoc
59   {
60     super(path);
61
62     if (isAppend)
63       _os = path.openAppend();
64     else
65       _os = path.openWrite();
66   }
67
68   /**
69    * Prints a string to a file.
70    */
71   public void print(char v)
72     throws IOException JavaDoc
73   {
74     if (_os != null)
75       _os.print(v);
76   }
77
78   /**
79    * Prints a string to a file.
80    */
81   public void print(String JavaDoc v)
82     throws IOException JavaDoc
83   {
84     if (_os != null)
85       _os.print(v);
86   }
87
88   /**
89    * Writes a buffer to a file.
90    */
91   public int write(byte []buffer, int offset, int length)
92     throws IOException JavaDoc
93   {
94     if (_os != null) {
95       _os.write(buffer, offset, length);
96
97       return length;
98     }
99
100     return 0;
101   }
102
103   /**
104    * Flushes the output.
105    */
106   public void flush()
107   {
108     try {
109       if (_os != null)
110         _os.flush();
111     } catch (IOException JavaDoc e) {
112       log.log(Level.FINE, e.toString(), e);
113     }
114   }
115
116
117   /**
118    * Closes the file.
119    */
120   public void close()
121   {
122     try {
123       WriteStream os = _os;
124       _os = null;
125
126       if (os != null)
127         os.close();
128     } catch (IOException JavaDoc e) {
129       log.log(Level.FINE, e.toString(), e);
130     }
131   }
132
133   /**
134    * Converts to a string.
135    * @param env
136    */
137   public String JavaDoc toString()
138   {
139     return "File[" + getPath() + "]";
140   }
141 }
142
143
Popular Tags