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1 package org.objectweb.celtix.tools.utils;
2
3 import java.io.File  ;
4 import java.io.FileWriter ;
5 import java.io.IOException ;
6 import java.io.Writer ;
7 import java.util.logging.Logger ;
8
9 import org.objectweb.celtix.common.i18n.Message;
10 import org.objectweb.celtix.common.logging.LogUtils;
11 import org.objectweb.celtix.tools.common.ToolException;
12
13 public class FileWriterUtil {
14 private static final Logger LOG = LogUtils.getL7dLogger(FileWriterUtil.class);
15 private final File target;
16
17 public FileWriterUtil(String targetDir) throws ToolException {
18 target = new File (targetDir);
19 if (!(target.exists()) || !(target.isDirectory())) {
20 Message msg = new Message("DIRECTORY_NOT_EXIST", LOG, target);
21 throw new ToolException(msg);
22 }
23 }
24
25 public Writer getWriter(String packageName, String fileName) throws IOException {
26 File dir = buildDir(packageName);
27 File fn = new File (dir , fileName);
28 if (fn.exists() && !fn.delete()) {
29 throw new IOException (fn + ": Can't delete previous version");
30 }
31 return new FileWriter (fn);
32 }
33
34 public boolean isCollision(String packageName, String fileName) throws ToolException {
35 File dir = buildDir(packageName);
36 return fileExist(dir, fileName);
37 }
38
39 private File buildDir(String packageName) {
40 File dir;
41 if (packageName == null) {
42 dir = target;
43 } else {
44 dir = new File (target, toDir(packageName));
45 }
46 if (!dir.exists()) {
47 dir.mkdirs();
48 }
49 return dir;
50 }
51
52 private boolean fileExist(File dir, String fileName) {
53 return new File (dir, fileName).exists();
54 }
55
56 private String toDir(String packageName) {
57 return packageName.replace('.' , File.separatorChar);
58 }
59
60 }
61 |
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