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Java > Open Source Codes > com > go > trove > io > TemporaryFile


1 /* ====================================================================
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52
53 package com.go.trove.io;
54
55 import java.io.*;
56 import java.util.*;
57
58 /******************************************************************************
59  * Provides references to temporary files that are automatically deleted when
60  * closed, finalized, or when the system exits.
61  *
62  * @author Brian S O'Neill
63  * @version
64  * <!--$$Revision:--> 12 <!-- $-->, <!--$$JustDate:--> 00/12/05 <!-- $-->
65  */
66 public class TemporaryFile extends RandomAccessFile {
67     /**
68      * Creates a new writable temporary file that is deleted when closed,
69      * finalized, or when the system exits.
70      *
71      * @see File#createTempFile
72      */
73     public static RandomAccessFile createTemporaryFile
74         (String JavaDoc prefix, String JavaDoc suffix, File directory) throws IOException {
75
76         File file = File.createTempFile(prefix, suffix, directory);
77         file.deleteOnExit();
78         return new TemporaryFile(file);
79     }
80
81     /**
82      * Creates a new writable temporary file that is deleted when closed,
83      * finalized, or when the system exits.
84      *
85      * @see File#createTempFile
86      */
87     public static RandomAccessFile createTemporaryFile
88         (String JavaDoc prefix, String JavaDoc suffix) throws IOException {
89
90         return createTemporaryFile(prefix, suffix, null);
91     }
92
93     private File mFile;
94
95     private TemporaryFile(File file) throws IOException {
96         super(file, "rw");
97         mFile = file;
98     }
99
100     public void close() throws IOException {
101         try {
102             super.close();
103         }
104         finally {
105             mFile.delete();
106         }
107     }
108
109     protected void finalize() throws IOException {
110         close();
111     }
112 }
113
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