|
1
11 package org.eclipse.jdt.internal.corext.refactoring.nls;
12
13 import java.util.Arrays  ;
14
15 import org.eclipse.text.edits.DeleteEdit;
16 import org.eclipse.text.edits.InsertEdit;
17 import org.eclipse.text.edits.MultiTextEdit;
18 import org.eclipse.text.edits.ReplaceEdit;
19 import org.eclipse.text.edits.TextEdit;
20
21 import org.eclipse.core.runtime.CoreException;
22
23 import org.eclipse.jface.text.Region;
24 import org.eclipse.jface.text.TextUtilities;
25
26 import org.eclipse.ltk.core.refactoring.Change;
27 import org.eclipse.ltk.core.refactoring.TextChange;
28
29 import org.eclipse.jdt.core.IBuffer;
30 import org.eclipse.jdt.core.ICompilationUnit;
31 import org.eclipse.jdt.core.IPackageFragment;
32 import org.eclipse.jdt.core.IType;
33 import org.eclipse.jdt.core.compiler.InvalidInputException;
34 import org.eclipse.jdt.core.dom.rewrite.ImportRewrite;
35
36 import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
37 import org.eclipse.jdt.internal.corext.refactoring.changes.CompilationUnitChange;
38 import org.eclipse.jdt.internal.corext.refactoring.changes.TextChangeCompatibility;
39 import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
40 import org.eclipse.jdt.internal.corext.util.Messages;
41
42 public class NLSSourceModifier {
43
44 private final String fSubstitutionPattern;
45 private final boolean fIsEclipseNLS;
46
47 private NLSSourceModifier(String substitutionPattern, boolean isEclipseNLS) {
48 fSubstitutionPattern= substitutionPattern;
49 fIsEclipseNLS= isEclipseNLS;
50 }
51
52 public static Change create(ICompilationUnit cu, NLSSubstitution[] subs, String substitutionPattern, IPackageFragment accessorPackage, String accessorClassName, boolean isEclipseNLS) throws CoreException {
53
54 NLSSourceModifier sourceModification= new NLSSourceModifier(substitutionPattern, isEclipseNLS);
55
56 String message= Messages.format(NLSMessages.NLSSourceModifier_change_description, cu.getElementName());
57
58 TextChange change= new CompilationUnitChange(message, cu);
59 MultiTextEdit multiTextEdit= new MultiTextEdit();
60 change.setEdit(multiTextEdit);
61
62 accessorClassName= sourceModification.createImportForAccessor(multiTextEdit, accessorClassName, accessorPackage, cu);
63
64 for (int i= 0; i < subs.length; i++) {
65 NLSSubstitution substitution= subs[i];
66 int newState= substitution.getState();
67 if (substitution.hasStateChanged()) {
68 if (newState == NLSSubstitution.EXTERNALIZED) {
69 if (substitution.getInitialState() == NLSSubstitution.INTERNALIZED) {
70 sourceModification.addNLS(substitution, change, accessorClassName);
71 } else if (substitution.getInitialState() == NLSSubstitution.IGNORED) {
72 sourceModification.addAccessor(substitution, change, accessorClassName);
73 }
74 } else if (newState == NLSSubstitution.INTERNALIZED) {
75 if (substitution.getInitialState() == NLSSubstitution.IGNORED) {
76 sourceModification.deleteTag(substitution, change);
77 if (substitution.isValueRename()) {
78 sourceModification.replaceValue(substitution, change);
79 }
80 } else if (substitution.getInitialState() == NLSSubstitution.EXTERNALIZED) {
81 sourceModification.deleteAccessor(substitution, change, cu);
82 if (!isEclipseNLS)
83 sourceModification.deleteTag(substitution, change);
84 }
85 } else if (newState == NLSSubstitution.IGNORED) {
86 if (substitution.getInitialState() == NLSSubstitution.INTERNALIZED) {
87 sourceModification.addNLS(substitution, change, accessorClassName);
88 if (substitution.isValueRename()) {
89 sourceModification.replaceValue(substitution, change);
90 }
91 } else {
92 if (substitution.getInitialState() == NLSSubstitution.EXTERNALIZED) {
93 sourceModification.deleteAccessor(substitution, change, cu);
94 }
95 }
96 }
97 } else {
98 if (newState == NLSSubstitution.EXTERNALIZED) {
99 if (substitution.isKeyRename()) {
100 sourceModification.replaceKey(substitution, change);
101 }
102 if (substitution.isAccessorRename()) {
103 sourceModification.replaceAccessor(substitution, change);
104 }
105 } else {
106 if (substitution.isValueRename()) {
107 sourceModification.replaceValue(substitution, change);
108 }
109 }
110 }
111 }
112
113 return change;
114 }
115
116
120 private void replaceAccessor(NLSSubstitution substitution, TextChange change) {
121 AccessorClassReference accessorClassRef= substitution.getAccessorClassReference();
122 if (accessorClassRef != null) {
123 Region region= accessorClassRef.getRegion();
124 int len= accessorClassRef.getName().length();
125 String [] args= {accessorClassRef.getName(), substitution.getUpdatedAccessor()};
126 TextChangeCompatibility.addTextEdit(change, Messages.format(NLSMessages.NLSSourceModifier_replace_accessor, args),
127 new ReplaceEdit(region.getOffset(), len, substitution.getUpdatedAccessor())); }
129
130 }
131
132 private void replaceKey(NLSSubstitution substitution, TextChange change) {
133 Region region= substitution.getNLSElement().getPosition();
134 String [] args= {substitution.getInitialKey(), substitution.getKey()};
135
136 ReplaceEdit replaceEdit;
137 if (fIsEclipseNLS)
138 replaceEdit= new ReplaceEdit(region.getOffset(), region.getLength(), substitution.getKey());
139 else
140 replaceEdit= new ReplaceEdit(region.getOffset(), region.getLength(), '\"' + unwindEscapeChars(substitution.getKey()) + '\"');
142 TextChangeCompatibility.addTextEdit(change, Messages.format(NLSMessages.NLSSourceModifier_replace_key, args), replaceEdit);
143 }
144
145 private void replaceValue(NLSSubstitution substitution, TextChange change) {
146 Region region= substitution.getNLSElement().getPosition();
147 String [] args= {substitution.getInitialValue(), substitution.getValueNonEmpty()};
148 TextChangeCompatibility.addTextEdit(change, Messages.format(NLSMessages.NLSSourceModifier_replace_value, args),
149 new ReplaceEdit(region.getOffset(), region.getLength(), '\"' + unwindEscapeChars(substitution.getValueNonEmpty()) + '\"')); }
151
152 private void deleteAccessor(NLSSubstitution substitution, TextChange change, ICompilationUnit cu) throws CoreException {
153 AccessorClassReference accessorClassRef= substitution.getAccessorClassReference();
154 if (accessorClassRef != null) {
155 Region region= accessorClassRef.getRegion();
156 String [] args= {substitution.getValueNonEmpty(), substitution.getKey()};
157 String label= Messages.format(NLSMessages.NLSSourceModifier_remove_accessor, args);
158 String replaceString= '\"' + unwindEscapeChars(substitution.getValueNonEmpty()) + '\"';
159 TextChangeCompatibility.addTextEdit(change, label, new ReplaceEdit(region.getOffset(), region.getLength(), replaceString));
160 if (fIsEclipseNLS && substitution.getState() != NLSSubstitution.INTERNALIZED) {
161
162 Region position= substitution.getNLSElement().getPosition();
163 int lineStart= getLineStart(cu.getBuffer(), position.getOffset());
164 int lineEnd= getLineEnd(cu.getBuffer(), position.getOffset());
165 String cuLine= cu.getBuffer().getText(lineStart, lineEnd - lineStart);
166 StringBuffer buf= new StringBuffer (cuLine);
167 buf.replace(region.getOffset() - lineStart, region.getOffset() + region.getLength() - lineStart, replaceString);
168 try {
169 NLSLine[] allLines= NLSScanner.scan(buf.toString());
170
171 NLSLine nlsLine= allLines[0];
172 NLSElement element= findElement(nlsLine, position.getOffset() - lineStart - accessorClassRef.getName().length() - 1);
173 if (element == null || element.hasTag())
174 return;
175
176 NLSElement[] elements= nlsLine.getElements();
177 int indexInElementList= Arrays.asList(elements).indexOf(element);
178 String editText= ' ' + NLSElement.createTagText(indexInElementList + 1); TextChangeCompatibility.addTextEdit(change, label, new InsertEdit(lineEnd, editText));
180
181 } catch (InvalidInputException e) {
182
183 }
184 }
185 }
186 }
187
188 private int getLineEnd(IBuffer buffer, int offset) {
189 int pos= offset;
190 int length= buffer.getLength();
191 while (pos < length && !isDelemiter(buffer.getChar(pos))) {
192 pos++;
193 }
194 return pos;
195 }
196
197 private int getLineStart(IBuffer buffer, int offset) {
198 int pos= offset;
199 while (pos >= 0 && !isDelemiter(buffer.getChar(pos))) {
200 pos--;
201 }
202 return pos + 1;
203 }
204
205 private boolean isDelemiter(char ch) {
206 String [] delem= TextUtilities.DELIMITERS;
207 for (int i= 0; i < delem.length; i++) {
208 if (delem[i].length() == 1 && ch == delem[i].charAt(0))
209 return true;
210 }
211 return false;
212 }
213
214 private static boolean isPositionInElement(NLSElement element, int position) {
215 Region elementPosition= element.getPosition();
216 return (elementPosition.getOffset() <= position && position <= elementPosition.getOffset() + elementPosition.getLength());
217 }
218
219 private static NLSElement findElement(NLSLine line, int position) {
220 NLSElement[] elements= line.getElements();
221 for (int i= 0; i < elements.length; i++) {
222 NLSElement element= elements[i];
223 if (isPositionInElement(element, position))
224 return element;
225 }
226 return null;
227 }
228
229 private String unwindEscapeChars(String s) {
231 StringBuffer sb= new StringBuffer (s.length());
232 int length= s.length();
233 for (int i= 0; i < length; i++) {
234 char c= s.charAt(i);
235 sb.append(getUnwoundString(c));
236 }
237 return sb.toString();
238 }
239
240 private String getUnwoundString(char c) {
241 switch (c) {
242 case '\b' :
243 return "\\b"; case '\t' :
245 return "\\t"; case '\n' :
247 return "\\n"; case '\f' :
249 return "\\f"; case '\r' :
251 return "\\r"; case '\\' :
253 return "\\\\"; }
255 return String.valueOf(c);
256 }
257
258 private void deleteTag(NLSSubstitution substitution, TextChange change) {
259 Region textRegion= substitution.getNLSElement().getTagPosition();
260
261 TextChangeCompatibility.addTextEdit(change, NLSMessages.NLSSourceModifier_remove_tag,
262 new DeleteEdit(textRegion.getOffset(), textRegion.getLength()));
263 }
264
265 private String createImportForAccessor(MultiTextEdit parent, String accessorClassName, IPackageFragment accessorPackage, ICompilationUnit cu) throws CoreException {
266 IType type= accessorPackage.getCompilationUnit(accessorClassName + JavaModelUtil.DEFAULT_CU_SUFFIX).getType(accessorClassName);
267 String fullyQualifiedName= type.getFullyQualifiedName();
268
269 ImportRewrite importRewrite= StubUtility.createImportRewrite(cu, true);
270 String nameToUse= importRewrite.addImport(fullyQualifiedName);
271 TextEdit edit= importRewrite.rewriteImports(null);
272 parent.addChild(edit);
273
274 return nameToUse;
275 }
276
277 private void addNLS(NLSSubstitution sub, TextChange change, String accessorName) {
278 if (sub.getState() == NLSSubstitution.INTERNALIZED)
279 return;
280
281 NLSElement element= sub.getNLSElement();
282
283 addAccessor(sub, change, accessorName);
284
285 if (!fIsEclipseNLS || sub.getState() == NLSSubstitution.IGNORED) {
286 String arg= sub.getState() == NLSSubstitution.EXTERNALIZED ? sub.getKey() : sub.getValueNonEmpty();
288 String name= Messages.format(NLSMessages.NLSSourceModifier_add_tag, arg);
289 TextChangeCompatibility.addTextEdit(change, name, createAddTagChange(element));
290 }
291 }
292
293 private void addAccessor(NLSSubstitution sub, TextChange change, String accessorName) {
294 if (sub.getState() == NLSSubstitution.EXTERNALIZED) {
295 NLSElement element= sub.getNLSElement();
296 Region position= element.getPosition();
297 String [] args= {sub.getValueNonEmpty(), sub.getKey()};
298 String text= Messages.format(NLSMessages.NLSSourceModifier_externalize, args);
299
300 String resourceGetter= createResourceGetter(sub.getKey(), accessorName);
301
302 TextEdit edit= new ReplaceEdit(position.getOffset(), position.getLength(), resourceGetter);
303 if (fIsEclipseNLS && element.getTagPosition() != null) {
304 MultiTextEdit multiEdit= new MultiTextEdit();
305 multiEdit.addChild(edit);
306 Region tagPosition= element.getTagPosition();
307 multiEdit.addChild(new DeleteEdit(tagPosition.getOffset(), tagPosition.getLength()));
308 edit= multiEdit;
309 }
310 TextChangeCompatibility.addTextEdit(change, text, edit);
311 }
312 }
313
314 private TextEdit createAddTagChange(NLSElement element) {
315 int offset= element.getTagPosition().getOffset(); String text= ' ' + element.getTagText();
317 return new InsertEdit(offset, text);
318 }
319
320 private String createResourceGetter(String key, String accessorName) {
321 StringBuffer buf= new StringBuffer ();
322 buf.append(accessorName);
323 buf.append('.');
324
325 if (fIsEclipseNLS)
326 buf.append(key);
327 else {
328 int i= fSubstitutionPattern.indexOf(NLSRefactoring.KEY);
330 if (i != -1) {
331 buf.append(fSubstitutionPattern.substring(0, i));
332 buf.append('"').append(key).append('"');
333 buf.append(fSubstitutionPattern.substring(i + NLSRefactoring.KEY.length()));
334 }
335 }
336 return buf.toString();
337 }
338 }
339 |
Popular Tags |
Java API By Example, From Geeks To Geeks.