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1 package com.tonbeller.tbutils.httpunit;
2
3 import java.io.BufferedReader  ;
4 import java.io.File ;
5 import java.io.FileReader ;
6 import java.io.IOException ;
7
8
14 public class FileDiff {
15
16 public boolean equalsFiles(File f1, File f2) throws IOException {
17 return equalsFiles(f1, f2, new DefaultHandler());
18 }
19
20 public boolean equalsFiles(File f1, File f2, FileDiffHandler h) throws IOException {
21 FileDiffHandler handler = h == null ? new DefaultHandler() : h;
22
23 System.out.println("Comparing ");
24 System.out.println("> " + f1);
25 System.out.println("< " + f2);
26
27 BufferedReader fr1 = null;
28 try {
29 fr1 = new BufferedReader (new FileReader (f1));
30 BufferedReader fr2 = null;
31 try {
32 fr2 = new BufferedReader (new FileReader (f2));
33 int line = 0;
34 int errCnt = 0;
35 while (errCnt<10) {
36 line++;
37 String line1 = handler.prepareLine(fr1.readLine());
38 String line2 = handler.prepareLine(fr2.readLine());
39
40 if (!equalsLines(line1, line2)) {
41 System.out.println("Lines different at " +line);
42 System.out.println("> " + line1);
43 System.out.println("< " + line2);
44 errCnt++;
45 }
46
47 if (line1 == null)
48 break;
49 }
50 return errCnt==0;
51 } finally {
52 if (fr2 != null)
53 fr2.close();
54 }
55 } finally {
56 if (fr1 != null)
57 fr1.close();
58 }
59 }
60
61 private boolean equalsLines(String line1, String line2) {
62 if (line1 == line2)
63 return true;
64 if (line1 == null)
65 return false;
66
67 return line1.equals(line2);
68 }
69
70 public interface FileDiffHandler {
71
72 public String prepareLine(String line);
73 }
74
75 static class DefaultHandler implements FileDiffHandler {
76
77 public String prepareLine(String line) {
78 if (line == null)
79 return null;
80 return line.trim();
81 }
82
83 }
84 } |
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