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comparison src/org/dancres/io/FileCopier.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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-1:000000000000 0:3dc0c5604566
1 package org.dancres.io;
2
3 import java.io.*;
4 import java.nio.channels.*;
5 import java.nio.*;
6
7 public class FileCopier {
8 private ByteBuffer theBuffer =
9 ByteBuffer.allocateDirect(16 * 1024 * 1024);
10
11 public FileCopier() {
12 }
13
14 /**
15 Pass file name and directory to copy it to
16 */
17 public static void main(String args[]) {
18 try {
19 File myIn = new File(args[0]);
20 File myOut = new File(args[1]);
21
22 FileCopier myCopier = new FileCopier();
23
24 long myStart = System.currentTimeMillis();
25
26 myCopier.copy (myIn, myOut);
27
28 long myEnd = System.currentTimeMillis();
29
30 // System.out.println("Total time: " + (myEnd - myStart));
31
32 } catch (Exception anE) {
33 anE.printStackTrace(System.err);
34 }
35 }
36
37 public void copy(File aSource, File aDestDir) throws IOException {
38 FileInputStream myInFile = new FileInputStream(aSource);
39
40 FileOutputStream myOutFile =
41 new FileOutputStream(new File(aDestDir, aSource.getName()));
42
43 FileChannel myIn = myInFile.getChannel();
44 FileChannel myOut = myOutFile.getChannel();
45
46 boolean end = false;
47
48 while (true) {
49
50 int myBytes = myIn.read(theBuffer);
51
52 if (myBytes != -1) {
53 theBuffer.flip();
54
55 myOut.write(theBuffer);
56
57 theBuffer.clear();
58 } else
59 break;
60 }
61
62 myIn.close();
63 // myOut.force(false);
64 myOut.close();
65 myInFile.close();
66 myOutFile.close();
67
68 long myEnd = System.currentTimeMillis();
69 }
70 }