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Java > Open Source Codes > net > jforum > view > forum > common > UploadUtils


1 /*
2  * Copyright (c) Rafael Steil
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms,
6  * with or without modification, are permitted provided
7  * that the following conditions are met:
8  *
9  * 1) Redistributions of source code must retain the above
10  * copyright notice, this list of conditions and the
11  * following disclaimer.
12  * 2) Redistributions in binary form must reproduce the
13  * above copyright notice, this list of conditions and
14  * the following disclaimer in the documentation and/or
15  * other materials provided with the distribution.
16  * 3) Neither the name of "Rafael Steil" nor
17  * the names of its contributors may be used to endorse
18  * or promote products derived from this software without
19  * specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
22  * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
23  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
27  * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
32  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
34  * IN CONTRACT, STRICT LIABILITY, OR TORT
35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
37  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38  *
39  * Created on Jan 18, 2005 4:06:08 PM
40  * The JForum Project
41  * http://www.jforum.net
42  */
43 package net.jforum.view.forum.common;
44
45 import java.io.BufferedInputStream JavaDoc;
46 import java.io.FileOutputStream JavaDoc;
47
48 import net.jforum.util.legacy.commons.fileupload.FileItem;
49
50 /**
51  * @author Rafael Steil
52  * @version $Id: UploadUtils.java,v 1.9 2005/12/23 20:36:58 rafaelsteil Exp $
53  */
54 public class UploadUtils
55 {
56     private FileItem item;
57     private String JavaDoc extension = "";
58     
59     public UploadUtils(FileItem item)
60     {
61         this.item = item;
62     }
63     
64     public String JavaDoc getExtension()
65     {
66         if (this.extension == null || this.extension.equals("")) {
67             this.extension = this.item.getName().substring(this.item.getName().lastIndexOf('.') + 1);
68         }
69         
70         return this.extension;
71     }
72     
73     public void saveUploadedFile(String JavaDoc filename) throws Exception JavaDoc
74     {
75         BufferedInputStream JavaDoc inputStream = null;
76         FileOutputStream JavaDoc outputStream = null;
77         
78         try {
79             inputStream = new BufferedInputStream JavaDoc(this.item.getInputStream());
80             outputStream = new FileOutputStream JavaDoc(filename);
81             
82             int c = 0;
83             byte[] b = new byte[4096];
84             while ((c = inputStream.read(b)) != -1) {
85                 outputStream.write(b, 0, c);
86             }
87         }
88         finally {
89             if (outputStream != null) {
90                 outputStream.flush();
91                 outputStream.close();
92             }
93             
94             if (inputStream != null) {
95                 inputStream.close();
96             }
97         }
98     }
99 }
100
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