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18 package org.netbeans.libs.freemarker;
19
20 import freemarker.cache.TemplateLoader;
21 import freemarker.template.Configuration;
22 import freemarker.template.TemplateModel;
23 import freemarker.template.TemplateModelException;
24 import java.io.IOException  ;
25 import java.io.InputStreamReader ;
26 import java.io.Reader ;
27 import java.util.Enumeration ;
28 import java.util.LinkedHashSet ;
29 import java.util.Set ;
30 import javax.script.ScriptContext;
31 import org.openide.filesystems.FileObject;
32 import org.openide.filesystems.Repository;
33 import org.openide.util.Exceptions;
34
35
41
42 final class RsrcLoader extends Configuration implements TemplateLoader {
43 private FileObject fo;
44 private ScriptContext map;
45
46 RsrcLoader(FileObject fo, ScriptContext map) {
47 this.fo = fo;
48 this.map = map;
49 setTemplateLoader(this);
50 }
51
52 private FileObject getFile(String name) {
53 FileObject fo = (getFolder() == null) ? null : getFolder().getFileObject(name);
54 return fo;
55 }
56
57 private FileObject getFolder() {
58 return fo != null ? fo.getParent() : Repository.getDefault().getDefaultFileSystem().getRoot();
59 }
60
61 public Object findTemplateSource(String string) throws IOException {
62 FileObject fo = getFile(string);
63 return fo == null ? null : new Wrap(fo);
64 }
65
66 public long getLastModified(Object object) {
67 return ((Wrap)object).fo.lastModified().getTime();
68 }
69
70 public Reader getReader(Object object, String encoding) throws IOException {
71 Wrap w = (Wrap)object;
72 if (w.reader == null) {
73 w.reader = new InputStreamReader (w.fo.getInputStream(), encoding);
74 }
75 return w.reader;
76 }
77
78 public void closeTemplateSource(Object object) throws IOException {
79 Wrap w = (Wrap)object;
80 if (w.reader != null) {
81 w.reader.close();
82 }
83 }
84
85 public Object put(String string, Object object) {
86 assert false;
87 return null;
88 }
89
90 public TemplateModel getSharedVariable(String string) {
91 Object value = map == null ? null : map.getAttribute(string);
92 if (value == null || fo != null) {
93 value = fo.getAttribute(string);
94 }
95 try {
96 return getObjectWrapper().wrap(value);
97 } catch (TemplateModelException ex) {
98 Exceptions.printStackTrace(ex);
99 return null;
100 }
101 }
102
103 public Set getSharedVariableNames() {
104 LinkedHashSet <String > keys = new LinkedHashSet <String >();
105
106 if (map != null) {
107 keys.addAll(map.getBindings(map.ENGINE_SCOPE).keySet());
108 }
109
110 if (fo != null) {
111 Enumeration <String > en = fo.getAttributes();
112 while (en.hasMoreElements()) {
113 keys.add(en.nextElement());
114 }
115 }
116
117 return keys;
118 }
119
120 private static final class Wrap {
121 public FileObject fo;
122 public Reader reader;
123
124 public Wrap(FileObject fo) {
125 this.fo = fo;
126 }
127 } }
129 |
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