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1
19
20 package org.netbeans.modules.ant.freeform;
21
22 import java.io.File  ;
23 import java.io.IOException ;
24 import java.text.Collator ;
25 import java.util.ArrayList ;
26 import java.util.Collections ;
27 import java.util.Iterator ;
28 import java.util.List ;
29 import java.util.Set ;
30 import java.util.SortedSet ;
31 import java.util.TreeSet ;
32 import java.util.regex.Pattern ;
33 import javax.swing.event.ChangeListener ;
34 import org.apache.tools.ant.module.api.AntProjectCookie;
35 import org.apache.tools.ant.module.api.support.TargetLister;
36 import org.netbeans.api.project.Project;
37 import org.netbeans.modules.ant.freeform.spi.HelpIDFragmentProvider;
38 import org.openide.ErrorManager;
39 import org.openide.filesystems.FileObject;
40 import org.openide.filesystems.FileUtil;
41 import org.openide.loaders.DataObject;
42 import org.openide.loaders.DataObjectNotFoundException;
43 import org.openide.xml.XMLUtil;
44 import org.w3c.dom.Document ;
45 import org.w3c.dom.Element ;
46 import org.xml.sax.ErrorHandler ;
47 import org.xml.sax.InputSource ;
48 import org.xml.sax.SAXException ;
49 import org.xml.sax.SAXParseException ;
50
51
55 public class Util {
56
57 private Util() {}
58
59 public static final ErrorManager err = ErrorManager.getDefault().getInstance("org.netbeans.modules.ant.freeform");
61
68 public static String getAntScriptName(FileObject fo) {
69 AntProjectCookie apc = getAntProjectCookie(fo);
70 if (apc == null) {
71 return null;
72 }
73 Element projEl = apc.getProjectElement();
74 if (projEl == null) {
75 return null;
76 }
77 String name = projEl.getAttribute("name"); return name.length() > 0 ? name : null;
80 }
81
82 private static AntProjectCookie getAntProjectCookie(FileObject fo) {
83 DataObject dob;
84 try {
85 dob = DataObject.find(fo);
86 } catch (DataObjectNotFoundException ex) {
87 Util.err.notify(ErrorManager.INFORMATIONAL, ex);
88 return null;
89 }
90 assert dob != null;
91 AntProjectCookie apc = dob.getCookie(AntProjectCookie.class);
92 if (apc == null && fo.isData()) {
93 try {
98 apc = forceParse(fo);
99 } catch (IOException e) {
100 err.notify(ErrorManager.INFORMATIONAL, e);
101 } catch (SAXException e) {
102 err.log("Parse error in " + fo + ": " + e);
103 }
104 }
105 return apc;
106 }
107
108 private static final Pattern VALIDATION = Pattern.compile("([A-Za-z0-9])+");
110 public static String getMergedHelpIDFragments(Project p) {
111 List <String > fragments = new ArrayList <String >();
112
113 for (HelpIDFragmentProvider provider : p.getLookup().lookupAll(HelpIDFragmentProvider.class)) {
114 String fragment = provider.getHelpIDFragment();
115
116 if (fragment == null || !VALIDATION.matcher(fragment).matches()) {
117 throw new IllegalStateException ("HelpIDFragmentProvider \"" + provider + "\" provided invalid help ID fragment \"" + fragment + "\"."); }
119
120 fragments.add(fragment);
121 }
122
123 Collections.sort(fragments);
124
125 StringBuffer result = new StringBuffer ();
126
127 for (Iterator <String > i = fragments.iterator(); i.hasNext(); ) {
128 result.append(i.next());
129
130 if (i.hasNext()) {
131 result.append('.');
132 }
133 }
134
135 return result.toString();
136 }
137
138
145 public static List <String > getAntScriptTargetNames(FileObject fo) {
146 if (fo == null) {
147 throw new IllegalArgumentException ("Cannot call Util.getAntScriptTargetNames with null"); }
149 AntProjectCookie apc = getAntProjectCookie(fo);
150 if (apc == null) {
151 return null;
152 }
153 Set <TargetLister.Target> allTargets;
154 try {
155 allTargets = TargetLister.getTargets(apc);
156 } catch (IOException e) {
157 err.notify(ErrorManager.INFORMATIONAL, e);
158 return null;
159 }
160 SortedSet <String > targetNames = new TreeSet <String >(Collator.getInstance());
161 for (TargetLister.Target target : allTargets) {
162 if (target.isOverridden()) {
163 continue;
165 }
166 if (target.isInternal()) {
167 continue;
169 }
170 targetNames.add(target.getName());
171 }
172 return new ArrayList <String >(targetNames);
173 }
174
175
178 private static AntProjectCookie forceParse(FileObject fo) throws IOException , SAXException {
179 Document doc = XMLUtil.parse(new InputSource (fo.getURL().toExternalForm()), false, true, new ErrH(), null);
180 return new TrivialAntProjectCookie(fo, doc);
181 }
182
183 private static final class ErrH implements ErrorHandler {
184 public ErrH() {}
185 public void fatalError(SAXParseException exception) throws SAXException {
186 throw exception;
187 }
188 public void error(SAXParseException exception) throws SAXException {
189 throw exception;
190 }
191 public void warning(SAXParseException exception) throws SAXException {
192 }
194 }
195
196 private static final class TrivialAntProjectCookie implements AntProjectCookie.ParseStatus {
197
198 private final FileObject fo;
199 private final Document doc;
200
201 public TrivialAntProjectCookie(FileObject fo, Document doc) {
202 this.fo = fo;
203 this.doc = doc;
204 }
205
206 public FileObject getFileObject() {
207 return fo;
208 }
209
210 public File getFile() {
211 return FileUtil.toFile(fo);
212 }
213
214 public Document getDocument() {
215 return doc;
216 }
217
218 public Element getProjectElement() {
219 return doc.getDocumentElement();
220 }
221
222 public boolean isParsed() {
223 return true;
224 }
225
226 public Throwable getParseException() {
227 return null;
228 }
229
230 public void addChangeListener(ChangeListener l) {}
231
232 public void removeChangeListener(ChangeListener l) {}
233
234 }
235
236 }
237 |
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