|
1
19
20 package org.netbeans.modules.j2ee.metadata;
21
22 import java.beans.PropertyChangeEvent  ;
23 import java.beans.PropertyChangeListener ;
24 import java.beans.PropertyChangeSupport ;
25 import java.io.File ;
26 import java.net.MalformedURLException ;
27 import java.net.URL ;
28 import java.util.ArrayList ;
29 import java.util.HashSet ;
30 import java.util.List ;
31 import java.util.Set ;
32 import org.netbeans.api.java.classpath.ClassPath;
33 import org.netbeans.spi.java.classpath.ClassPathImplementation;
34 import org.netbeans.spi.java.classpath.PathResourceImplementation;
35 import org.netbeans.spi.java.classpath.support.ClassPathSupport;
36 import org.openide.ErrorManager;
37 import org.openide.filesystems.FileUtil;
38 import org.openide.util.WeakListeners;
39
40
45 public class StrippedClassPathImpl implements ClassPathImplementation, PropertyChangeListener {
46
47 private final ClassPath orig;
48 private final Set <URL > appSrvRoots;
49 private final PropertyChangeSupport support;
50 private List <PathResourceImplementation> resources;
51
52 public StrippedClassPathImpl(final ClassPath orig, final File [] appSrvRoots) {
53 assert orig != null;
54 assert appSrvRoots != null;
55 this.orig = orig;
56 this.appSrvRoots = new HashSet <URL >();
57 this.support = new PropertyChangeSupport (this);
58 for (File f : appSrvRoots) {
59 URL fileRoot = null;
60 try {
61 fileRoot = f.toURI().toURL();
62 } catch (MalformedURLException ex) {
63 ErrorManager.getDefault().notify(ex);
64 }
65 if (FileUtil.isArchiveFile(fileRoot)) {
66 fileRoot = FileUtil.getArchiveRoot(fileRoot);
67 }
68 this.appSrvRoots.add(fileRoot);
69 }
70 this.orig.addPropertyChangeListener(WeakListeners.propertyChange(this, this.orig));
71 }
72
73 public synchronized List <PathResourceImplementation> getResources() {
74 if (resources == null) {
75 this.resources = new ArrayList <PathResourceImplementation> ();
76 List <ClassPath.Entry> entries = orig.entries();
77 for (ClassPath.Entry entry : entries) {
78 URL url = entry.getURL();
79 if (!this.appSrvRoots.contains(url)) {
80 this.resources.add(ClassPathSupport.createResource(url));
81 }
82 }
83 }
84 return this.resources;
85 }
86
87 public void addPropertyChangeListener(PropertyChangeListener listener) {
88 assert listener != null;
89 this.support.addPropertyChangeListener(listener);
90 }
91
92 public void removePropertyChangeListener(PropertyChangeListener listener) {
93 assert listener != null;
94 this.support.removePropertyChangeListener(listener);
95 }
96
97 public void propertyChange(PropertyChangeEvent event) {
98 synchronized (this) {
99 this.resources = null;
100 }
101 this.support.firePropertyChange(PROP_RESOURCES, null, null);
102 }
103
104 }
105
106 |
Popular Tags |
Java API By Example, From Geeks To Geeks.