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1
19
20 package org.netbeans.modules.ant.freeform;
21
22 import java.io.IOException  ;
23 import java.util.Collection ;
24 import java.util.Collections ;
25 import java.util.HashSet ;
26 import java.util.Iterator ;
27 import java.util.List ;
28 import java.util.Set ;
29 import javax.swing.event.ChangeListener ;
30 import org.netbeans.api.project.Project;
31 import org.netbeans.api.project.ProjectManager;
32 import org.netbeans.modules.ant.freeform.spi.support.Util;
33 import org.netbeans.spi.project.SubprojectProvider;
34 import org.openide.ErrorManager;
35 import org.openide.filesystems.FileObject;
36 import org.w3c.dom.Element ;
37
38
43 final class Subprojects implements SubprojectProvider {
44
45 private final FreeformProject project;
46
47 public Subprojects(FreeformProject project) {
48 this.project = project;
49 }
50
51 public Set <? extends Project> getSubprojects() {
52 return new LazySubprojectsSet();
53 }
54
55
67 private Set <Project> createSubprojects(Set <Project> subprojects) {
68 Element config = project.getPrimaryConfigurationData();
69 Element subprjsEl = Util.findElement(config, "subprojects", FreeformProjectType.NS_GENERAL); if (subprjsEl != null) {
71 for (Element prjEl : Util.findSubElements(subprjsEl)) {
72 assert prjEl.getLocalName().equals("project") : "Bad element " + prjEl + " in <subprojects> for " + project;
73 String rawtext = Util.findText(prjEl);
74 assert rawtext != null : "Need text content for <project> in " + project;
75 String evaltext = project.evaluator().evaluate(rawtext);
76 if (evaltext == null) {
77 continue;
78 }
79 FileObject subprjDir = project.helper().resolveFileObject(evaltext);
80 if (subprjDir == null) {
81 continue;
82 }
83 try {
84 Project p = ProjectManager.getDefault().findProject(subprjDir);
85 if (p != null) {
86 if (subprojects == null)
87 return Collections.emptySet();
88 else
89 subprojects.add(p);
90 }
91 } catch (IOException e) {
92 org.netbeans.modules.ant.freeform.Util.err.notify(ErrorManager.INFORMATIONAL, e);
93 }
94 }
95 }
96
97 return subprojects;
98 }
99
100 public void addChangeListener(ChangeListener listener) {
101 }
103
104 public void removeChangeListener(ChangeListener listener) {
105 }
107
108
111 private final class LazySubprojectsSet implements Set <Project> {
112
113 private Set <Project> delegateTo = null;
114
115 private synchronized Set <Project> getDelegateTo() {
116 if (delegateTo == null) {
117 delegateTo = createSubprojects(new HashSet <Project>());
118 }
119
120 return delegateTo;
121 }
122
123 public boolean contains(Object o) {
124 return getDelegateTo().contains(o);
125 }
126
127 public boolean add(Project p) {
128 throw new UnsupportedOperationException ();
129 }
130
131 public boolean remove(Object o) {
132 throw new UnsupportedOperationException ();
133 }
134
135 public boolean removeAll(Collection c) {
136 throw new UnsupportedOperationException ();
137 }
138
139 public boolean retainAll(Collection c) {
140 throw new UnsupportedOperationException ();
141 }
142
143 public boolean addAll(Collection <? extends Project> c) {
144 throw new UnsupportedOperationException ();
145 }
146
147 public boolean containsAll(Collection c) {
148 return getDelegateTo().containsAll(c);
149 }
150
151 public <T> T[] toArray(T[] a) {
152 return getDelegateTo().toArray(a);
153 }
154
155 public void clear() {
156 throw new UnsupportedOperationException ();
157 }
158
159 public int size() {
160 return getDelegateTo().size();
161 }
162
163 public synchronized boolean isEmpty() {
164 if (delegateTo == null) {
165 return createSubprojects(null) == null;
166 } else {
167 return delegateTo.isEmpty();
168 }
169 }
170
171 public Iterator <Project> iterator() {
172 return getDelegateTo().iterator();
173 }
174
175 public Object [] toArray() {
176 return getDelegateTo().toArray();
177 }
178
179 public int hashCode() {
180 return getDelegateTo().hashCode();
181 }
182
183 public boolean equals(Object obj) {
184 return getDelegateTo().equals(obj);
185 }
186
187 public String toString() {
188 return getDelegateTo().toString();
189 }
190
191 }
192
193 }
194 |
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