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1
19 package org.netbeans.modules.xslt.model.impl;
20
21
22 import java.util.LinkedHashSet  ;
23 import java.util.List ;
24
25 import javax.xml.namespace.QName ;
26
27 import org.netbeans.modules.xml.xam.AbstractReference;
28 import org.netbeans.modules.xml.xam.Model;
29 import org.netbeans.modules.xslt.model.QualifiedNameable;
30 import org.netbeans.modules.xslt.model.ReferenceableXslComponent;
31 import org.netbeans.modules.xslt.model.Stylesheet;
32 import org.netbeans.modules.xslt.model.XslModel;
33 import org.netbeans.modules.xslt.model.XslReference;
34
35
36
41 class GlobalReferenceImpl<T extends QualifiedNameable> extends
42 AbstractReference<T> implements
43 XslReference<T>
44 {
45
46 GlobalReferenceImpl( T referenced, Class <T> referencedType,
48 XslComponentImpl parent )
49 {
50 super(referenced, referencedType, parent);
51 }
52
53 GlobalReferenceImpl( Class <T> referencedType,
55 XslComponentImpl parent, String ref )
56 {
57 super(referencedType, parent, ref);
58 initReferenceString( ref );
59 }
60
61
64 public T get() {
65 if (getReferenced() == null) {
66 setReferenced( find() );
67 }
68 return super.getReferenced();
69 }
70
71 @Override
72 public String getRefString() {
73 if (refString == null) {
74 T referenced = super.getReferenced();
75 assert referenced != null;
76 myQname = referenced.getName();
77 if ( myQname != null ) {
78 String result;
79 myPrefix = myQname.getPrefix();
80 myLocalPart = myQname.getLocalPart();
81 if ( myPrefix == null || myPrefix.length() == 0 ) {
82 result = myLocalPart;
83 }
84 else {
85 result = myPrefix + ":" +myLocalPart;
86 }
87
88 if ( getParent().isInDocumentModel() ) {
89 refString = result;
90 }
91 else {
92 return result;
93 }
94 }
95 }
96 return super.getRefString();
97 }
98
99
102 public QName getQName() {
103 checkParentNotRemovedFromModel();
104 if ( myQname == null) {
105 T referenced = super.getReferenced();
106 myQname = referenced.getName();
107 }
108 return myQname;
109 }
110
111 @Override
112 public boolean equals( Object obj )
113 {
114 if (this == obj) {
115 return true;
116 }
117 else if ( !( obj instanceof GlobalReferenceImpl )) {
118 return false;
119 }
120 else {
121 GlobalReferenceImpl<? extends ReferenceableXslComponent> ref =
122 (GlobalReferenceImpl<? extends ReferenceableXslComponent>) obj;
123 return getParent().equals( ref.getParent() )&&
124 getQName().equals( ref.getQName() );
125 }
126 }
127
128 @Override
129 public int hashCode()
130 {
131 return getParent().hashCode();
132 }
133
134 @Override
135 public XslComponentImpl getParent() {
136 return (XslComponentImpl) super.getParent();
137 }
138
139 @Override
140 public boolean references(T target) {
141 if ( target instanceof QualifiedNameable ) {
142 QualifiedNameable nameble = (QualifiedNameable) target;
143 return nameble.getName()!= null && nameble.getName().equals(
144 getQName() ) && !isBroken() && get() == target;
145 }
146 return super.references(target);
147 }
148
149 public void refresh() {
150 getRefString();
151 setReferenced(null);
152 }
153
154 protected T getReferenced() {
155 if (super.getReferenced() == null) {
156 checkParentPartOfModel();
157 } else {
158 if (super.getParent().getModel() == null) {
159 throw new IllegalStateException (
160 "Referencing component has been removed from model."); }
162 if (super.getReferenced().getModel() == null) {
163 throw new IllegalStateException (
164 "Referenced component has been removed from model."); }
166 }
167 return super.getReferenced();
168 }
169
170
173 protected void checkParentNotRemovedFromModel() {
174 if (getParent().getModel() == null) {
175 throw new IllegalStateException (
176 "Referencing component has been removed from model."); }
178 }
179
180
183 protected void checkParentPartOfModel() {
184 if (! getParent().isInDocumentModel()) {
185 throw new IllegalStateException (
186 "Referencing component is not part of model."); }
188 }
189
190
194 protected QName calculateQNameLocally() {
195 String prefix = getPrefix();
196 String localPart = getLocalPart();
197 String namespace = null;
198 namespace = getParent().lookupNamespaceURI(prefix);
199 if (namespace == null) {
200 String temp = getParent().lookupPrefix(prefix);
203 if (temp != null) {
204 prefix = temp;
205 namespace = prefix;
206 }
207 }
208
209 if (prefix == null) {
210 return new QName (namespace, localPart);
211 }
212 else {
213 return new QName (namespace, localPart, prefix);
214 }
215 }
216
217 private String getLocalPart() {
218 if ( myLocalPart == null ) {
219 String ref = getRefString();
220 if ( ref == null ) {
221 return null;
222 }
223 String [] parts = ref.split(":"); if (parts.length == 2) {
225 return parts[1];
226 }
227 else {
228 return parts[0];
229 }
230 }
231 else {
232 return myLocalPart;
233 }
234 }
235
236 private String getPrefix() {
237 if ( myPrefix == null ) {
238 String ref = getRefString();
239 if ( ref == null ) {
240 return null;
241 }
242 String [] parts = ref.split(":"); if (parts.length == 2) {
244 return parts[0];
245 }
246 else {
247 return null;
248 }
249 }
250 else {
251 return myPrefix;
252 }
253 }
254
255 private void initReferenceString( String ref ) {
256 assert ref!=null;
257 refString = ref;
258 String [] parts = refString.split(":"); if (parts.length == 2) {
260 myPrefix = parts[0];
261 myLocalPart = parts[1];
262 } else {
263 myPrefix = null;
264 myLocalPart = parts[0];
265 }
266 }
267
268 private T find() {
269 LinkedHashSet <XslModel> list = Utilities.getAvailibleModels(
270 getParent().getModel());
271 for (XslModel model : list) {
272 if ( Model.State.VALID.equals( model.getState() )) {
273 Stylesheet stylesheet = model.getStylesheet();
274 if ( stylesheet == null ) {
275 continue;
276 }
277 List <T> children = stylesheet.getChildren( getType() );
278 T result = find( children );
279 if ( result != null ) {
280 return result;
281 }
282 }
283 }
284 return null;
285 }
286
287 private T find( List <T> children ) {
288 for (T t : children) {
289 QName name = t.getName();
290 if ( name == null ) {
291 continue;
292 }
293 String localPart = name.getLocalPart();
294 String ns = name.getNamespaceURI();
295 if ( getLocalPart().equals( localPart)
296 && Utilities.equals( getQName().getNamespaceURI() , ns ) )
297 {
298 return t;
299 }
300 }
301 return null;
302 }
303
304 private QName myQname;
305
306 private String myPrefix;
307
308 private String myLocalPart;
309
310 }
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