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1 package org.lateralnz.common.wrapper;
2
3 import java.io.FileInputStream  ;
4 import java.io.FileOutputStream ;
5 import java.io.IOException ;
6 import java.util.Properties ;
7
8 import org.lateralnz.common.util.IOUtils;
9
10 public class PropertiesWrapper extends Properties {
11
12 private String filename = null;
13
14 public PropertiesWrapper() {
15 super();
16 }
17
18 public PropertiesWrapper(String filename) throws IOException {
19 super();
20 init(filename);
21 }
22
23 public PropertiesWrapper(String filename, Properties props) throws IOException {
24 super(props);
25 init(filename);
26 }
27
28 private void init(String filename) throws IOException {
29 this.filename = filename;
30 load();
31 }
32
33 public synchronized Object put(Object key, Object value) {
34 return super.put(key, value);
35 }
36
37 public synchronized void load() throws IOException {
38 FileInputStream fis = null;
39 try {
40 fis = new FileInputStream (filename);
41 this.load(fis);
42 }
43 finally {
44 IOUtils.close(fis);
45 }
46 }
47
48 public synchronized void save() throws IOException {
49 FileOutputStream fos = null;
50 try {
51 fos = new FileOutputStream (filename);
52 this.store(fos, "");
53 }
54 finally {
55 IOUtils.close(fos);
56 }
57 }
58 } |
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