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16 package org.outerj.daisy.backupTool;
17
18 import java.io.File  ;
19 import java.util.ArrayList ;
20 import java.util.Arrays ;
21 import java.util.List ;
22
23 public class FileBackupEntry extends AbstractBackupEntry {
24
25 protected List filesToBackup;
26
27 protected File baseDirectory;
28
29 private File tempDir;
30
31 public FileBackupEntry(File fileToBackup, File backupFile, File baseDirectory, BackupInstance buInstance) throws Exception {
32 super(backupFile, buInstance);
33 filesToBackup = new ArrayList ();
34 this.baseDirectory = baseDirectory;
35 addFileToBackup(fileToBackup);
36 }
37
38 public FileBackupEntry(File backupFile, File baseDirectory, BackupInstance buInstance) {
39 super(backupFile, buInstance);
40 filesToBackup = new ArrayList ();
41 this.baseDirectory = baseDirectory;
42 }
43
44 public FileBackupEntry(File backupFile, File [] filesToBackup, File baseDirectory, BackupInstance buInstance) {
45 super(backupFile, buInstance);
46 this.filesToBackup = Arrays.asList(filesToBackup);
47 this.baseDirectory = baseDirectory;
48 }
49
50 public void backup() throws Exception {
51 for (int i = 0; i < filesToBackup.size(); i++) {
52 File tobackup = getFileToBackup(i);
53 String pathSuffix = tobackup.getPath().substring(baseDirectory.getPath().length());
54
55 File from = getFileToBackup(i);
56 File to = new File (tempDir, pathSuffix);
57 try {
58 BackupHelper.copyFile(from, to);
59 } catch (Exception e) {
60 throw new Exception ("Error copying file from " + from.getAbsolutePath() + " to " + to.getAbsolutePath());
61 }
62 }
63 }
64
65 protected File getTempPath() {
66 return tempDir;
67 }
68
69 public void backupInit() throws Exception {
70 tempDir = new File (buInstance.getDirectory(), this.backupFile.getName() + "-tmp");
71 tempDir.mkdir();
72 }
73
74 public void restore() throws Exception {
75 for (int i = 0; i < filesToBackup.size(); i++)
76 BackupHelper.deleteFile(getFileToBackup(i), true);
77
78 baseDirectory.mkdirs();
81 if (backupFile.exists()) {
82 BackupHelper.unzipToDirectory(backupFile, baseDirectory);
83 } else {
84 System.out.println("Backup does not contain file " + backupFile.getName() + ", skipping its restore.");
85 }
86 }
87
88 public void addFileToBackup(File file) {
89 filesToBackup.add(file);
90 }
91
92 public void removeFileFromBackup(File file) {
93 filesToBackup.remove(file);
94 }
95
96 public void clearFilesFromBackup() {
97 filesToBackup.clear();
98 }
99
100 public File getFileToBackup(int index) {
101 return (File ) filesToBackup.get(index);
102 }
103
104 protected boolean isNothing() {
105 return isEmpty(tempDir);
106 }
107
108 private boolean isEmpty(File file) {
109 if (file.isDirectory()) {
110 File [] children = file.listFiles();
111 for (int i = 0; i < children.length; i++) {
112 if (children[i].isFile()) {
113 return false;
114 } else {
115 boolean dirEmpty = isEmpty(children[i]);
116 if (!dirEmpty)
117 return false;
118 }
119 }
120 return true;
121 } else {
122 return false;
123 }
124 }
125 }
126 |
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