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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 org.dom4j.Document;
11 import org.dom4j.DocumentHelper;
12 import org.dom4j.Element;
13
14 import org.dom4j.io.OutputFormat;
15 import org.dom4j.io.SAXReader;
16 import org.dom4j.io.XMLWriter;
17
18 import java.io.FileWriter  ;
19
20 import java.util.HashMap ;
21 import java.util.Iterator ;
22
23
24 class XMLGroupsCache extends FileGroupsCache {
25
27 protected static final Log log = LogFactory.getLog(XMLGroupsCache.class);
28
29
31 public XMLGroupsCache(String storeFile, String storeFileType) {
32 super(storeFile, storeFileType);
33 load();
34 }
35
36
38 public boolean load() {
39 try {
40 groups = new HashMap ();
42
43 SAXReader reader = new SAXReader();
44 Document document = null;
45 document = reader.read(getInputStreamFromStoreFile());
46
47 Element root = document.getRootElement();
48
49 if (log.isDebugEnabled()) {
50 log.debug("loaded " + storeFile);
51 }
52
53 for (Iterator i = root.elementIterator(); i.hasNext();) {
55 Element groupElement = (Element) i.next();
56
57 if (groupElement.getName().equals("group")) {
58 String groupName = groupElement.attribute("id").getValue();
59
60 FileGroup group = new FileGroup();
61 group.name = groupName;
62
63 for (Iterator j = groupElement.elementIterator();
65 j.hasNext();) {
66 Element userElement = (Element) j.next();
67
68 if (userElement.getName().equals("user")) {
69 String userName = userElement.attribute("id").getValue();
70 group.users.add(userName);
71 log.debug("added user " + userName + " to group " + groupName);
72 } else {
73 log.warn("expected 'user' element, found " + userElement.getName() + " in " + storeFile);
74 }
75 }
76
77 groups.put(groupName, group);
78 log.debug("added group " + groupName);
79 } else {
80 log.warn("expected 'group' element, found " + groupElement.getName() + " in " + storeFile);
81 }
82 }
83
84 return true;
85 } catch (Exception e) {
86 log.fatal("cannot load from " + storeFile + ".", e);
87 }
88
89 return false;
90 }
91
92 public boolean store() {
93 try {
94 Document document = DocumentHelper.createDocument();
95 Element root = document.addElement("groups");
96
97 for (Iterator i = groups.keySet().iterator(); i.hasNext();) {
99 String groupKey = i.next().toString();
100 FileGroup group = (FileGroup) groups.get(groupKey);
101 Element groupElement = root.addElement("group").addAttribute("id", group.name);
102
103 for (Iterator j = group.users.iterator(); j.hasNext();) {
105 groupElement.addElement("user").addAttribute("id", j.next().toString());
106 }
107 }
108
109 OutputFormat format = OutputFormat.createPrettyPrint();
111 XMLWriter writer = new XMLWriter(new FileWriter (storeFile));
112 writer.write(document);
113 writer.close();
114
115 return true;
116 } catch (Exception e) {
117 log.fatal("cannot store in file " + storeFile + ".", e);
118 }
119
120 return false;
121 }
122 }
123 |
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