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18 package freecs.layout;
19
20 import freecs.Server;
21 import freecs.interfaces.IReloadable;
22 import freecs.util.FileMonitor;
23
24 import java.io.*;
25 import java.util.*;
26
27 public class TemplateManager implements IReloadable {
28 private HashMap tSets;
29 public static TemplateManager mgr;
30 public static File reloadable;
31 public static long lastModified=0;
32
33 public TemplateManager() throws IOException {
34 tSets = new HashMap();
35 loadTemplates();
36 TemplateManager.mgr = this;
37 lastModified = reloadable.lastModified();
38 FileMonitor.getFileMonitor ().addReloadable (this);
39 }
40
41 public TemplateSet getTemplateSet () {
42 return getTemplateSet("default");
43 }
44 public TemplateSet getTemplateSet (String  name) {
45 if (name == null || !tSets.containsKey (name))
46 return (TemplateSet) tSets.get("default");
47 return (TemplateSet) tSets.get(name);
48 }
49
50 private void loadTemplates() throws IOException {
51 StringBuffer tsb = new StringBuffer (Server.BASE_PATH).append ("/templatesets");
52 File tFile = new File(tsb.toString ());
53 if (!tFile.exists()) {
54 if (!tFile.mkdir()) { throw new IOException("Unable to create directory 'templateset'"); }
55 tsb = new StringBuffer (Server.BASE_PATH).append ("/templatesets/default");
56 tFile = new File(tsb.toString ());
57 if (!tFile.exists()) {
58 if (!tFile.mkdir()) { throw new IOException("Unable to create directory 'default'"); }
59 }
60 throw new IOException("No templates available. (Directories created)");
61 }
62 if (!tFile.isDirectory()) {
63 throw new IOException("'templatesets' isn't a directory");
64 }
65 reloadable=tFile;
66 File defaultTs = new File (tFile.getCanonicalPath(), "default");
67 if (!defaultTs.exists()) {
68 throw new IOException ("The default-layout was not present!");
69 }
70 constructTemplateSet(defaultTs);
71 File fList[] = tFile.listFiles ();
72 for (int i = 0; i < fList.length; i++) {
73 if (!fList[i].isDirectory () || fList[i].getName().equals("default"))
74 continue;
75 constructTemplateSet(fList[i]);
76 }
77 if (!tSets.containsKey("default")) throw new IOException ("Unable to read default-template-set");
78 }
79
80 private void constructTemplateSet (File f) throws IOException {
81 TemplateSet tSet = new TemplateSet (f, this);
82 if (!tSet.isValide ())
83 return;
84 StringBuffer tsb = new StringBuffer ("parsed valide templateset ");
85 tsb.append (tSet.getName ());
86 Server.log(this, tsb.toString (), Server.MSG_STATE, Server.LVL_MINOR);
87 tSets.put (f.getName (), tSet);
88 }
89
90 public String toString() {
91 return "[TemplateManager]";
92 }
93
94
97 public File getFile() {
98 return reloadable;
99 }
100
101
104 public boolean filePresent() {
105 return reloadable.exists();
106 }
107
108
111 public long lastModified() {
112 return lastModified;
113 }
114
115
118 public void changed() {
119 lastModified = reloadable.lastModified();
120 if (!reloadable.isDirectory()) {
121 Server.log (this, "templateset-directory is a file NOT a directory!", Server.MSG_STATE, Server.LVL_MAJOR);
122 return;
123 }
124 File files[] = reloadable.listFiles();
125 for (int i = 0; i < files.length; i++) {
126 TemplateSet ts = (TemplateSet) tSets.get(files[i].getName());
127 if (ts == null) try {
128 Server.log (this, "constructing newly added templateset " + files[i].getName(), Server.MSG_STATE, Server.LVL_MAJOR);
129 constructTemplateSet (files[i]);
130 continue;
131 } catch (IOException ioe) {
132 Server.debug (this, "constructTemplateSet caused Exception for " + files[i].getName(), ioe, Server.MSG_ERROR, Server.LVL_MAJOR);
133 }
134 ts.reload(files[i]);
135 }
136 for (Iterator i = this.tSets.keySet().iterator(); i.hasNext(); ) {
137 String name = (String ) i.next();
138 File subdir = new File(reloadable, name);
139 if (!subdir.exists()) {
140 Server.log (this, "removing templateset " + name, Server.MSG_STATE, Server.LVL_MAJOR);
141 i.remove();
142 }
143 }
144 }
145
146
149 public void removed() {
150 Server.log (this, "templateset-directory has been removed!", Server.MSG_STATE, Server.LVL_MAJOR);
151 }
152
153
156 public void created() {
157 changed();
158 }
159 }
160 |
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