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1
5 package com.opensymphony.user.provider.file;
6
7 import org.apache.commons.logging.Log;
8 import org.apache.commons.logging.LogFactory;
9
10 import java.io.FileInputStream  ;
11 import java.io.IOException ;
12 import java.io.InputStream ;
13
14
17 abstract class FileEntitiesCache {
18
20 protected static final Log log = LogFactory.getLog(FileEntitiesCache.class);
21
22
24 protected String storeFile;
25 protected String storeFileType;
26
27
29 public FileEntitiesCache(String storeFile, String storeFileType) {
30 this.storeFile = storeFile;
31 this.storeFileType = storeFileType;
32
33 if (storeFile == null) {
34 log.fatal("property storeFile must be specified");
35 }
36
37 if (storeFileType == null) {
38 log.fatal("property storeFileType must be specified; one of (file,resource)");
39 }
40
41 if (!storeFileType.equalsIgnoreCase("file") && !storeFileType.equalsIgnoreCase("resource")) {
42 log.fatal("property storeFileType must be one of (file,resource)");
43 }
44
45 }
46
47
49 abstract public boolean load();
50
51 abstract public boolean store();
52
53 protected InputStream getInputStreamFromStoreFile() throws IOException {
54 if (storeFileType.equalsIgnoreCase("file")) {
55 return new FileInputStream (storeFile);
56 } else if (storeFileType.equalsIgnoreCase("resource")) {
57 ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
58
59 return classLoader.getResourceAsStream(storeFile);
60 } else {
61 log.fatal("property storeFileType must be one of (file,resource)");
62
63 return null;
64 }
65 }
66 }
67 |
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