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Java Source Code / Java Documentation » 6.0 JDK Modules » jaxb xjc » com.sun.tools.jxc.model.nav 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         * 
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         * 
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common Development
008:         * and Distribution License("CDDL") (collectively, the "License").  You
009:         * may not use this file except in compliance with the License. You can obtain
010:         * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011:         * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
012:         * language governing permissions and limitations under the License.
013:         * 
014:         * When distributing the software, include this License Header Notice in each
015:         * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016:         * Sun designates this particular file as subject to the "Classpath" exception
017:         * as provided by Sun in the GPL Version 2 section of the License file that
018:         * accompanied this code.  If applicable, add the following below the License
019:         * Header, with the fields enclosed by brackets [] replaced by your own
020:         * identifying information: "Portions Copyrighted [year]
021:         * [name of copyright owner]"
022:         * 
023:         * Contributor(s):
024:         * 
025:         * If you wish your version of this file to be governed by only the CDDL or
026:         * only the GPL Version 2, indicate your decision by adding "[Contributor]
027:         * elects to include this software in this distribution under the [CDDL or GPL
028:         * Version 2] license."  If you don't indicate a single choice of license, a
029:         * recipient has the option to distribute your version of this file under
030:         * either the CDDL, the GPL Version 2 or to extend the choice of license to
031:         * its licensees as provided above.  However, if you add GPL Version 2 code
032:         * and therefore, elected the GPL Version 2 license, then the option applies
033:         * only if the new code is made subject to such option by the copyright
034:         * holder.
035:         */
036:
037:        package com.sun.tools.jxc.model.nav;
038:
039:        import java.util.ArrayList;
040:        import java.util.Collection;
041:        import java.util.Collections;
042:        import java.util.Comparator;
043:        import java.util.HashMap;
044:        import java.util.List;
045:        import java.util.Map;
046:
047:        import com.sun.istack.tools.APTTypeVisitor;
048:        import com.sun.mirror.apt.AnnotationProcessorEnvironment;
049:        import com.sun.mirror.declaration.ClassDeclaration;
050:        import com.sun.mirror.declaration.ConstructorDeclaration;
051:        import com.sun.mirror.declaration.Declaration;
052:        import com.sun.mirror.declaration.EnumConstantDeclaration;
053:        import com.sun.mirror.declaration.EnumDeclaration;
054:        import com.sun.mirror.declaration.FieldDeclaration;
055:        import com.sun.mirror.declaration.InterfaceDeclaration;
056:        import com.sun.mirror.declaration.MemberDeclaration;
057:        import com.sun.mirror.declaration.MethodDeclaration;
058:        import com.sun.mirror.declaration.Modifier;
059:        import com.sun.mirror.declaration.ParameterDeclaration;
060:        import com.sun.mirror.declaration.TypeDeclaration;
061:        import com.sun.mirror.type.ArrayType;
062:        import com.sun.mirror.type.ClassType;
063:        import com.sun.mirror.type.DeclaredType;
064:        import com.sun.mirror.type.InterfaceType;
065:        import com.sun.mirror.type.PrimitiveType;
066:        import com.sun.mirror.type.ReferenceType;
067:        import com.sun.mirror.type.TypeMirror;
068:        import com.sun.mirror.type.TypeVariable;
069:        import com.sun.mirror.type.VoidType;
070:        import com.sun.mirror.type.WildcardType;
071:        import com.sun.mirror.util.Declarations;
072:        import com.sun.mirror.util.SourcePosition;
073:        import com.sun.mirror.util.TypeVisitor;
074:        import com.sun.mirror.util.Types;
075:        import com.sun.xml.bind.v2.model.nav.Navigator;
076:        import com.sun.xml.bind.v2.runtime.Location;
077:
078:        /**
079:         * {@link Navigator} implementation for APT.
080:         *
081:         * TODO: check the spec on how generics are supposed to be handled
082:         *
083:         * @author Kohsuke Kawaguchi (kk@kohsuke.org)
084:         */
085:        public class APTNavigator
086:                implements 
087:                Navigator<TypeMirror, TypeDeclaration, FieldDeclaration, MethodDeclaration> {
088:
089:            private final AnnotationProcessorEnvironment env;
090:
091:            private final PrimitiveType primitiveByte;
092:
093:            public APTNavigator(AnnotationProcessorEnvironment env) {
094:                this .env = env;
095:                this .primitiveByte = env.getTypeUtils().getPrimitiveType(
096:                        PrimitiveType.Kind.BYTE);
097:            }
098:
099:            public TypeDeclaration getSuperClass(TypeDeclaration t) {
100:                if (t instanceof  ClassDeclaration) {
101:                    ClassDeclaration c = (ClassDeclaration) t;
102:                    ClassType sup = c.getSuperclass();
103:                    if (sup != null)
104:                        return sup.getDeclaration();
105:                    else
106:                        return null;
107:                }
108:                return env.getTypeDeclaration(Object.class.getName());
109:            }
110:
111:            public TypeMirror getBaseClass(TypeMirror type, TypeDeclaration sup) {
112:                return baseClassFinder.apply(type, sup);
113:            }
114:
115:            public String getClassName(TypeDeclaration t) {
116:                return t.getQualifiedName();
117:            }
118:
119:            public String getTypeName(TypeMirror typeMirror) {
120:                return typeMirror.toString();
121:            }
122:
123:            public String getClassShortName(TypeDeclaration t) {
124:                return t.getSimpleName();
125:            }
126:
127:            public Collection<FieldDeclaration> getDeclaredFields(
128:                    TypeDeclaration c) {
129:                List<FieldDeclaration> l = new ArrayList<FieldDeclaration>(c
130:                        .getFields());
131:                return sort(l);
132:            }
133:
134:            public FieldDeclaration getDeclaredField(TypeDeclaration clazz,
135:                    String fieldName) {
136:                for (FieldDeclaration fd : clazz.getFields()) {
137:                    if (fd.getSimpleName().equals(fieldName))
138:                        return fd;
139:                }
140:                return null;
141:            }
142:
143:            public Collection<MethodDeclaration> getDeclaredMethods(
144:                    TypeDeclaration c) {
145:                List<MethodDeclaration> l = new ArrayList<MethodDeclaration>(c
146:                        .getMethods());
147:                return sort(l);
148:            }
149:
150:            private <A extends Declaration> List<A> sort(List<A> l) {
151:                if (l.isEmpty())
152:                    return l;
153:
154:                // APT supports the operation mode where it creates Declarations from
155:                // a class file, in which case the source position is not available
156:                // use that as a key to sort them correctly. This isn't "correct" in
157:                // the sense that it relies on undocumented behavior of APT where
158:                // it returns declarations in the reverse order, but this makes things work.
159:                SourcePosition pos = l.get(0).getPosition();
160:                if (pos != null)
161:                    Collections.sort(l, SOURCE_POS_COMPARATOR);
162:                else
163:                    Collections.reverse(l);
164:                return l;
165:            }
166:
167:            public ClassDeclaration getDeclaringClassForField(FieldDeclaration f) {
168:                return (ClassDeclaration) f.getDeclaringType();
169:            }
170:
171:            public ClassDeclaration getDeclaringClassForMethod(
172:                    MethodDeclaration m) {
173:                return (ClassDeclaration) m.getDeclaringType();
174:            }
175:
176:            public TypeMirror getFieldType(FieldDeclaration f) {
177:                return f.getType();
178:            }
179:
180:            public String getFieldName(FieldDeclaration f) {
181:                return f.getSimpleName();
182:            }
183:
184:            public String getMethodName(MethodDeclaration m) {
185:                return m.getSimpleName();
186:            }
187:
188:            public TypeMirror getReturnType(MethodDeclaration m) {
189:                return m.getReturnType();
190:            }
191:
192:            public TypeMirror[] getMethodParameters(MethodDeclaration m) {
193:                Collection<ParameterDeclaration> ps = m.getParameters();
194:                TypeMirror[] r = new TypeMirror[ps.size()];
195:                int i = 0;
196:                for (ParameterDeclaration p : ps)
197:                    r[i++] = p.getType();
198:                return r;
199:            }
200:
201:            public boolean isStaticMethod(MethodDeclaration m) {
202:                return hasModifier(m, Modifier.STATIC);
203:            }
204:
205:            private boolean hasModifier(Declaration d, Modifier mod) {
206:                return d.getModifiers().contains(mod);
207:            }
208:
209:            public boolean isSubClassOf(TypeMirror sub, TypeMirror sup) {
210:                if (sup == DUMMY)
211:                    // see ref(). if the sub type is known to APT,
212:                    // its base class must be known. Thus if the sup is DUMMY,
213:                    // it cannot possibly be the super type.
214:                    return false;
215:                return env.getTypeUtils().isSubtype(sub, sup);
216:            }
217:
218:            private String getSourceClassName(Class clazz) {
219:                Class<?> d = clazz.getDeclaringClass();
220:                if (d == null)
221:                    return clazz.getName();
222:                else {
223:                    String shortName = clazz.getName().substring(
224:                            d.getName().length() + 1/*for $*/);
225:                    return getSourceClassName(d) + '.' + shortName;
226:                }
227:            }
228:
229:            public TypeMirror ref(Class c) {
230:                if (c.isArray())
231:                    return env.getTypeUtils().getArrayType(
232:                            ref(c.getComponentType()));
233:                if (c.isPrimitive())
234:                    return getPrimitive(c);
235:                TypeDeclaration t = env
236:                        .getTypeDeclaration(getSourceClassName(c));
237:                // APT only operates on a set of classes used in the compilation,
238:                // and it won't recognize additional classes (even if they are visible from javac)
239:                // and return null.
240:                //
241:                // this is causing a problem where we check if a type is collection.
242:                // so until the problem is fixed in APT, work around the issue
243:                // by returning a dummy token
244:                if (t == null)
245:                    return DUMMY;
246:                return env.getTypeUtils().getDeclaredType(t);
247:            }
248:
249:            public TypeMirror use(TypeDeclaration t) {
250:                assert t != null;
251:                return env.getTypeUtils().getDeclaredType(t);
252:            }
253:
254:            public TypeDeclaration asDecl(TypeMirror m) {
255:                m = env.getTypeUtils().getErasure(m);
256:                if (m instanceof  DeclaredType) {
257:                    DeclaredType d = (DeclaredType) m;
258:                    return d.getDeclaration();
259:                } else
260:                    return null;
261:            }
262:
263:            public TypeDeclaration asDecl(Class c) {
264:                return env.getTypeDeclaration(getSourceClassName(c));
265:            }
266:
267:            public <T> TypeMirror erasure(TypeMirror t) {
268:                Types tu = env.getTypeUtils();
269:                t = tu.getErasure(t);
270:                if (t instanceof  DeclaredType) {
271:                    DeclaredType dt = (DeclaredType) t;
272:                    if (!dt.getActualTypeArguments().isEmpty())
273:                        return tu.getDeclaredType(dt.getDeclaration());
274:                }
275:                return t;
276:            }
277:
278:            public boolean isAbstract(TypeDeclaration clazz) {
279:                return hasModifier(clazz, Modifier.ABSTRACT);
280:            }
281:
282:            public boolean isFinal(TypeDeclaration clazz) {
283:                return hasModifier(clazz, Modifier.FINAL);
284:            }
285:
286:            public FieldDeclaration[] getEnumConstants(TypeDeclaration clazz) {
287:                EnumDeclaration ed = (EnumDeclaration) clazz;
288:                Collection<EnumConstantDeclaration> constants = ed
289:                        .getEnumConstants();
290:                return constants.toArray(new EnumConstantDeclaration[constants
291:                        .size()]);
292:            }
293:
294:            public TypeMirror getVoidType() {
295:                return env.getTypeUtils().getVoidType();
296:            }
297:
298:            public String getPackageName(TypeDeclaration clazz) {
299:                return clazz.getPackage().getQualifiedName();
300:            }
301:
302:            public TypeDeclaration findClass(String className,
303:                    TypeDeclaration referencePoint) {
304:                return env.getTypeDeclaration(className);
305:            }
306:
307:            public boolean isBridgeMethod(MethodDeclaration method) {
308:                return method.getModifiers().contains(Modifier.VOLATILE);
309:            }
310:
311:            public boolean isOverriding(MethodDeclaration method,
312:                    TypeDeclaration base) {
313:                ClassDeclaration sc = (ClassDeclaration) base;
314:
315:                Declarations declUtil = env.getDeclarationUtils();
316:
317:                while (true) {
318:                    for (MethodDeclaration m : sc.getMethods()) {
319:                        if (declUtil.overrides(method, m))
320:                            return true;
321:                    }
322:
323:                    if (sc.getSuperclass() == null)
324:                        return false;
325:                    sc = sc.getSuperclass().getDeclaration();
326:                }
327:            }
328:
329:            public boolean isInterface(TypeDeclaration clazz) {
330:                return clazz instanceof  InterfaceDeclaration;
331:            }
332:
333:            public boolean isTransient(FieldDeclaration f) {
334:                return f.getModifiers().contains(Modifier.TRANSIENT);
335:            }
336:
337:            public boolean isInnerClass(TypeDeclaration clazz) {
338:                return clazz.getDeclaringType() != null
339:                        && !clazz.getModifiers().contains(Modifier.STATIC);
340:            }
341:
342:            public boolean isArray(TypeMirror t) {
343:                return t instanceof  ArrayType;
344:            }
345:
346:            public boolean isArrayButNotByteArray(TypeMirror t) {
347:                if (!isArray(t))
348:                    return false;
349:
350:                ArrayType at = (ArrayType) t;
351:                TypeMirror ct = at.getComponentType();
352:
353:                return !ct.equals(primitiveByte);
354:            }
355:
356:            public TypeMirror getComponentType(TypeMirror t) {
357:                if (t instanceof  ArrayType) {
358:                    ArrayType at = (ArrayType) t;
359:                    return at.getComponentType();
360:                }
361:
362:                throw new IllegalArgumentException();
363:            }
364:
365:            public TypeMirror getTypeArgument(TypeMirror typeMirror, int i) {
366:                if (typeMirror instanceof  DeclaredType) {
367:                    DeclaredType d = (DeclaredType) typeMirror;
368:                    TypeMirror[] args = d.getActualTypeArguments().toArray(
369:                            new TypeMirror[0]);
370:                    return args[i];
371:                } else
372:                    throw new IllegalArgumentException();
373:            }
374:
375:            public boolean isParameterizedType(TypeMirror t) {
376:                if (t instanceof  DeclaredType) {
377:                    DeclaredType d = (DeclaredType) t;
378:                    return !d.getActualTypeArguments().isEmpty();
379:                }
380:                return false;
381:            }
382:
383:            public boolean isPrimitive(TypeMirror t) {
384:                return t instanceof  PrimitiveType;
385:            }
386:
387:            private static final Map<Class, PrimitiveType.Kind> primitives = new HashMap<Class, PrimitiveType.Kind>();
388:
389:            static {
390:                primitives.put(Integer.TYPE, PrimitiveType.Kind.INT);
391:                primitives.put(Byte.TYPE, PrimitiveType.Kind.BYTE);
392:                primitives.put(Float.TYPE, PrimitiveType.Kind.FLOAT);
393:                primitives.put(Boolean.TYPE, PrimitiveType.Kind.BOOLEAN);
394:                primitives.put(Short.TYPE, PrimitiveType.Kind.SHORT);
395:                primitives.put(Long.TYPE, PrimitiveType.Kind.LONG);
396:                primitives.put(Double.TYPE, PrimitiveType.Kind.DOUBLE);
397:                primitives.put(Character.TYPE, PrimitiveType.Kind.CHAR);
398:
399:            }
400:
401:            public TypeMirror getPrimitive(Class primitiveType) {
402:                assert primitiveType.isPrimitive();
403:                if (primitiveType == void.class)
404:                    return getVoidType();
405:                return env.getTypeUtils().getPrimitiveType(
406:                        primitives.get(primitiveType));
407:            }
408:
409:            /**
410:             * see {@link #ref(Class)}.
411:             */
412:            private static final TypeMirror DUMMY = new TypeMirror() {
413:                public void accept(TypeVisitor v) {
414:                    throw new IllegalStateException();
415:                }
416:            };
417:
418:            /**
419:             * Implements {@link #getBaseClass}.
420:             */
421:            private final APTTypeVisitor<TypeMirror, TypeDeclaration> baseClassFinder = new APTTypeVisitor<TypeMirror, TypeDeclaration>() {
422:                public TypeMirror onClassType(ClassType type,
423:                        TypeDeclaration sup) {
424:                    TypeMirror r = onDeclaredType(type, sup);
425:                    if (r != null)
426:                        return r;
427:
428:                    // otherwise recursively apply super class and base types
429:                    if (type.getSuperclass() != null) {
430:                        r = onClassType(type.getSuperclass(), sup);
431:                        if (r != null)
432:                            return r;
433:                    }
434:
435:                    return null;
436:                }
437:
438:                protected TypeMirror onPrimitiveType(PrimitiveType type,
439:                        TypeDeclaration param) {
440:                    return type;
441:                }
442:
443:                protected TypeMirror onVoidType(VoidType type,
444:                        TypeDeclaration param) {
445:                    return type;
446:                }
447:
448:                public TypeMirror onInterfaceType(InterfaceType type,
449:                        TypeDeclaration sup) {
450:                    return onDeclaredType(type, sup);
451:                }
452:
453:                private TypeMirror onDeclaredType(DeclaredType t,
454:                        TypeDeclaration sup) {
455:                    // t = sup<...>
456:                    if (t.getDeclaration().equals(sup))
457:                        return t;
458:
459:                    for (InterfaceType i : t.getSuperinterfaces()) {
460:                        TypeMirror r = onInterfaceType(i, sup);
461:                        if (r != null)
462:                            return r;
463:                    }
464:
465:                    return null;
466:                }
467:
468:                public TypeMirror onTypeVariable(TypeVariable t,
469:                        TypeDeclaration sup) {
470:                    // we are checking if T (declared as T extends A&B&C) is assignable to sup.
471:                    // so apply bounds recursively.
472:                    for (ReferenceType r : t.getDeclaration().getBounds()) {
473:                        TypeMirror m = apply(r, sup);
474:                        if (m != null)
475:                            return m;
476:                    }
477:                    return null;
478:                }
479:
480:                public TypeMirror onArrayType(ArrayType type,
481:                        TypeDeclaration sup) {
482:                    // we are checking if t=T[] is assignable to sup.
483:                    // the only case this is allowed is sup=Object,
484:                    // and Object isn't parameterized.
485:                    return null;
486:                }
487:
488:                public TypeMirror onWildcard(WildcardType type,
489:                        TypeDeclaration sup) {
490:                    // we are checking if T (= ? extends A&B&C) is assignable to sup.
491:                    // so apply bounds recursively.
492:                    for (ReferenceType r : type.getLowerBounds()) {
493:                        TypeMirror m = apply(r, sup);
494:                        if (m != null)
495:                            return m;
496:                    }
497:                    return null;
498:                }
499:            };
500:
501:            public Location getClassLocation(TypeDeclaration decl) {
502:                return getLocation(decl.getQualifiedName(), decl.getPosition());
503:            }
504:
505:            public Location getFieldLocation(FieldDeclaration decl) {
506:                return getLocation(decl);
507:            }
508:
509:            public Location getMethodLocation(MethodDeclaration decl) {
510:                return getLocation(decl);
511:            }
512:
513:            public boolean hasDefaultConstructor(TypeDeclaration t) {
514:                if (!(t instanceof  ClassDeclaration))
515:                    return false;
516:
517:                ClassDeclaration c = (ClassDeclaration) t;
518:                for (ConstructorDeclaration init : c.getConstructors()) {
519:                    if (init.getParameters().isEmpty())
520:                        return true;
521:                }
522:                return false;
523:            }
524:
525:            public boolean isStaticField(FieldDeclaration f) {
526:                return hasModifier(f, Modifier.STATIC);
527:            }
528:
529:            public boolean isPublicMethod(MethodDeclaration m) {
530:                return hasModifier(m, Modifier.PUBLIC);
531:            }
532:
533:            public boolean isPublicField(FieldDeclaration f) {
534:                return hasModifier(f, Modifier.PUBLIC);
535:            }
536:
537:            public boolean isEnum(TypeDeclaration t) {
538:                return t instanceof  EnumDeclaration;
539:            }
540:
541:            private Location getLocation(MemberDeclaration decl) {
542:                return getLocation(decl.getDeclaringType().getQualifiedName()
543:                        + '.' + decl.getSimpleName(), decl.getPosition());
544:            }
545:
546:            private Location getLocation(final String name,
547:                    final SourcePosition sp) {
548:                return new Location() {
549:                    public String toString() {
550:                        if (sp == null)
551:                            return name + " (Unknown Source)";
552:                        // just like stack trace, we just print the file name and
553:                        // not the whole path. The idea is that the pakage name should
554:                        // provide enough clue on which directory it lives.
555:                        return name + '(' + sp.file().getName() + ':'
556:                                + sp.line() + ')';
557:                    }
558:                };
559:            }
560:
561:            /**
562:             * Comparator that uses the source position
563:             */
564:            private static final Comparator<Declaration> SOURCE_POS_COMPARATOR = new Comparator<Declaration>() {
565:                public int compare(Declaration d1, Declaration d2) {
566:                    if (d1 == d2)
567:                        return 0;
568:
569:                    SourcePosition p1 = d1.getPosition();
570:                    SourcePosition p2 = d2.getPosition();
571:
572:                    if (p1 == null) {
573:                        return (p2 == null) ? 0 : 1;
574:                    } else {
575:                        if (p2 == null)
576:                            return -1;
577:
578:                        int fileComp = p1.file().compareTo(p2.file());
579:                        if (fileComp == 0) {
580:                            long diff = (long) p1.line() - (long) p2.line();
581:                            if (diff == 0) {
582:                                diff = Long.signum((long) p1.column()
583:                                        - (long) p2.column());
584:                                if (diff != 0)
585:                                    return (int) diff;
586:                                else {
587:                                    // declarations may be two
588:                                    // compiler-generated members with the
589:                                    // same source position
590:                                    return (Long.signum((long) System
591:                                            .identityHashCode(d1)
592:                                            - (long) System
593:                                                    .identityHashCode(d2)));
594:                                }
595:                            } else
596:                                return (diff < 0) ? -1 : 1;
597:                        } else
598:                            return fileComp;
599:                    }
600:                }
601:            };
602:        }
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