Source Code Cross Referenced for JAXBUtils.java in  » Web-Services-apache-cxf-2.0.1 » common » org » apache » cxf » jaxb » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Services apache cxf 2.0.1 » common » org.apache.cxf.jaxb 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Licensed to the Apache Software Foundation (ASF) under one
003:         * or more contributor license agreements. See the NOTICE file
004:         * distributed with this work for additional information
005:         * regarding copyright ownership. The ASF licenses this file
006:         * to you under the Apache License, Version 2.0 (the
007:         * "License"); you may not use this file except in compliance
008:         * with the License. You may obtain a copy of the License at
009:         *
010:         * http://www.apache.org/licenses/LICENSE-2.0
011:         *
012:         * Unless required by applicable law or agreed to in writing,
013:         * software distributed under the License is distributed on an
014:         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015:         * KIND, either express or implied. See the License for the
016:         * specific language governing permissions and limitations
017:         * under the License.
018:         */package org.apache.cxf.jaxb;
019:
020:        import java.lang.reflect.Method;
021:        import java.net.URI;
022:        import java.net.URISyntaxException;
023:
024:        import java.util.ArrayList;
025:        import java.util.HashMap;
026:        import java.util.List;
027:        import java.util.Map;
028:        import java.util.StringTokenizer;
029:        import java.util.concurrent.Future;
030:
031:        import javax.xml.ws.AsyncHandler;
032:        import javax.xml.ws.Holder;
033:        import javax.xml.ws.Response;
034:
035:        import org.apache.cxf.helpers.JavaUtils;
036:
037:        public final class JAXBUtils {
038:
039:            public enum IdentifierType {
040:                CLASS, INTERFACE, GETTER, SETTER, VARIABLE, CONSTANT
041:            };
042:
043:            public static final String JAXB_URI = "http://java.sun.com/xml/ns/jaxb";
044:
045:            private static final char[] XML_NAME_PUNCTUATION_CHARS = new char[] {
046:            /* hyphen                       */'\u002D',
047:            /* period                       */'\u002E',
048:            /* colon                        */'\u003A',
049:            /* dot                          */'\u00B7',
050:            /* greek ano teleia             */'\u0387',
051:            /* arabic end of ayah           */'\u06DD',
052:            /* arabic start of rub el hizb  */'\u06DE',
053:            /* underscore                   */'\u005F', };
054:
055:            private static final String XML_NAME_PUNCTUATION_STRING = new String(
056:                    XML_NAME_PUNCTUATION_CHARS);
057:
058:            private static final Map<String, String> BUILTIN_DATATYPES_MAP;
059:            private static final Map<String, Class<?>> HOLDER_TYPES_MAP;
060:
061:            static {
062:                BUILTIN_DATATYPES_MAP = new HashMap<String, String>();
063:                BUILTIN_DATATYPES_MAP.put("string", "java.lang.String");
064:                BUILTIN_DATATYPES_MAP.put("integer", "java.math.BigInteger");
065:                BUILTIN_DATATYPES_MAP.put("int", "int");
066:                BUILTIN_DATATYPES_MAP.put("long", "long");
067:                BUILTIN_DATATYPES_MAP.put("short", "short");
068:                BUILTIN_DATATYPES_MAP.put("decimal", "java.math.BigDecimal");
069:                BUILTIN_DATATYPES_MAP.put("float", "float");
070:                BUILTIN_DATATYPES_MAP.put("double", "double");
071:                BUILTIN_DATATYPES_MAP.put("boolean", "boolean");
072:                BUILTIN_DATATYPES_MAP.put("byte", "byte");
073:                BUILTIN_DATATYPES_MAP.put("QName", "javax.xml.namespace.QName");
074:                BUILTIN_DATATYPES_MAP.put("dateTime",
075:                        "javax.xml.datatype.XMLGregorianCalendar");
076:                BUILTIN_DATATYPES_MAP.put("base64Binary", "byte[]");
077:                BUILTIN_DATATYPES_MAP.put("hexBinary", "byte[]");
078:                BUILTIN_DATATYPES_MAP.put("unsignedInt", "long");
079:                BUILTIN_DATATYPES_MAP.put("unsignedShort", "short");
080:                BUILTIN_DATATYPES_MAP.put("unsignedByte", "byte");
081:                BUILTIN_DATATYPES_MAP.put("time",
082:                        "javax.xml.datatype.XMLGregorianCalendar");
083:                BUILTIN_DATATYPES_MAP.put("date",
084:                        "javax.xml.datatype.XMLGregorianCalendar");
085:                BUILTIN_DATATYPES_MAP.put("gYear",
086:                        "javax.xml.datatype.XMLGregorianCalendar");
087:                BUILTIN_DATATYPES_MAP.put("gYearMonth",
088:                        "javax.xml.datatype.XMLGregorianCalendar");
089:                BUILTIN_DATATYPES_MAP.put("gMonth",
090:                        "javax.xml.datatype.XMLGregorianCalendar");
091:                BUILTIN_DATATYPES_MAP.put("gMonthDay",
092:                        "javax.xml.datatype.XMLGregorianCalendar");
093:                BUILTIN_DATATYPES_MAP.put("gDay",
094:                        "javax.xml.datatype.XMLGregorianCalendar");
095:                BUILTIN_DATATYPES_MAP.put("duration",
096:                        "javax.xml.datatype.Duration");
097:                BUILTIN_DATATYPES_MAP.put("NOTATION",
098:                        "javax.xml.namespace.QName");
099:                BUILTIN_DATATYPES_MAP.put("string", "java.lang.String");
100:
101:                HOLDER_TYPES_MAP = new HashMap<String, Class<?>>();
102:                HOLDER_TYPES_MAP.put("int", java.lang.Integer.class);
103:                HOLDER_TYPES_MAP.put("long", java.lang.Long.class);
104:                HOLDER_TYPES_MAP.put("short", java.lang.Short.class);
105:                HOLDER_TYPES_MAP.put("float", java.lang.Float.class);
106:                HOLDER_TYPES_MAP.put("double", java.lang.Double.class);
107:                HOLDER_TYPES_MAP.put("boolean", java.lang.Boolean.class);
108:                HOLDER_TYPES_MAP.put("byte", java.lang.Byte.class);
109:            }
110:
111:            /**
112:             * prevents instantiation
113:             *
114:             */
115:            private JAXBUtils() {
116:            }
117:
118:            public static String builtInTypeToJavaType(String type) {
119:                return BUILTIN_DATATYPES_MAP.get(type);
120:            }
121:
122:            public static Class<?> holderClass(String type) {
123:                return HOLDER_TYPES_MAP.get(type);
124:            }
125:
126:            /** 
127:             * Checks if the specified word is a Java keyword (as of 1.5).
128:             * 
129:             * @param word the word to check.
130:             * @return true if the word is a keyword.
131:             */
132:            public static boolean isJavaKeyword(String word) {
133:                return JavaUtils.isJavaKeyword(word);
134:            }
135:
136:            /**
137:             * Generates a Java package name from a URI according to the
138:             * algorithm outlined in JAXB 2.0.
139:             * 
140:             * @param namespaceURI the namespace URI.
141:             * @return the package name.
142:             */
143:            public static String namespaceURIToPackage(String namespaceURI) {
144:                try {
145:                    return nameSpaceURIToPackage(new URI(namespaceURI));
146:                } catch (URISyntaxException ex) {
147:                    return null;
148:                }
149:            }
150:
151:            /**
152:             * Generates a Java package name from a URI according to the
153:             * algorithm outlined in JAXB 2.0.
154:             * 
155:             * @param namespaceURI the namespace URI.
156:             * @return the package name.
157:             */
158:            public static String nameSpaceURIToPackage(URI uri) {
159:
160:                StringBuffer packageName = new StringBuffer();
161:                String authority = uri.getAuthority();
162:                if (authority == null && "urn".equals(uri.getScheme())) {
163:                    authority = uri.getSchemeSpecificPart();
164:                }
165:
166:                if (null != authority && !"".equals(authority)) {
167:                    if ("urn".equals(uri.getScheme())) {
168:                        packageName.append(authority);
169:                        for (int i = 0; i < packageName.length(); i++) {
170:                            if (packageName.charAt(i) == '-') {
171:                                packageName.setCharAt(i, '.');
172:                            }
173:                        }
174:                        authority = packageName.toString();
175:                        packageName.setLength(0);
176:
177:                        StringTokenizer st = new StringTokenizer(authority, ":");
178:                        while (st.hasMoreTokens()) {
179:                            String token = st.nextToken();
180:                            if (packageName.length() > 0) {
181:                                packageName.insert(0, ".");
182:                                packageName.insert(0,
183:                                        normalizePackageNamePart(token));
184:                            } else {
185:                                packageName.insert(0, token);
186:                            }
187:                        }
188:                        authority = packageName.toString();
189:                        packageName.setLength(0);
190:
191:                    }
192:
193:                    StringTokenizer st = new StringTokenizer(authority, ".");
194:                    if (st.hasMoreTokens()) {
195:                        String token = null;
196:                        while (st.hasMoreTokens()) {
197:                            token = st.nextToken();
198:                            if (packageName.length() == 0) {
199:                                if ("www".equals(token)) {
200:                                    continue;
201:                                }
202:                            } else {
203:                                packageName.insert(0, ".");
204:                            }
205:                            packageName.insert(0,
206:                                    normalizePackageNamePart(token));
207:                        }
208:
209:                    }
210:                }
211:
212:                String path = uri.getPath();
213:                if (path == null) {
214:                    path = "";
215:                }
216:                int index = path.lastIndexOf('.');
217:                if (index < 0) {
218:                    index = path.length();
219:                }
220:                StringTokenizer st = new StringTokenizer(path.substring(0,
221:                        index), "/");
222:                while (st.hasMoreTokens()) {
223:                    String token = st.nextToken();
224:                    if (packageName.length() > 0) {
225:                        packageName.append('.');
226:                    }
227:                    packageName.append(normalizePackageNamePart(token));
228:                }
229:                return packageName.toString();
230:            }
231:
232:            public static boolean isAsync(Method method) {
233:                return method.getName().endsWith("Async")
234:                        && (method.getReturnType().equals(Response.class) || method
235:                                .getReturnType().equals(Future.class));
236:            }
237:
238:            public static boolean isAsyncPolling(Method method) {
239:                return method.getName().endsWith("Async")
240:                        && (method.getReturnType().equals(Response.class));
241:            }
242:
243:            public static boolean isAsyncCallback(Method method) {
244:                Class[] paramTypes = method.getParameterTypes();
245:                return method.getName().endsWith("Async")
246:                        && (method.getReturnType().equals(Future.class) && AsyncHandler.class
247:                                .isAssignableFrom(paramTypes[paramTypes.length - 1]));
248:            }
249:
250:            private static String normalizePackageNamePart(String name) {
251:                StringBuffer sname = new StringBuffer(name.toLowerCase());
252:
253:                for (int i = 0; i < sname.length(); i++) {
254:                    sname.setCharAt(i, Character.toLowerCase(sname.charAt(i)));
255:                }
256:
257:                for (int i = 0; i < sname.length(); i++) {
258:                    if (!Character.isJavaIdentifierPart(sname.charAt(i))) {
259:                        sname.setCharAt(i, '_');
260:                    }
261:                }
262:
263:                if (isJavaKeyword(sname.toString())) {
264:                    sname.insert(0, '_');
265:                }
266:
267:                if (!Character.isJavaIdentifierStart(sname.charAt(0))) {
268:                    sname.insert(0, '_');
269:                }
270:
271:                return sname.toString();
272:            }
273:
274:            /**
275:             * Converts an XML name to a Java identifier according to the mapping
276:             * algorithm outlines in the JAXB specification
277:             * 
278:             * @param name the XML name
279:             * @return the Java identifier
280:             */
281:            public static String nameToIdentifier(String name,
282:                    IdentifierType type) {
283:
284:                if (null == name || name.length() == 0) {
285:                    return name;
286:                }
287:
288:                // algorithm will not change an XML name that is already a legal and
289:                // conventional (!) Java class, method, or constant identifier
290:
291:                boolean legalIdentifier = false;
292:                StringBuffer buf = new StringBuffer(name);
293:                legalIdentifier = Character
294:                        .isJavaIdentifierStart(buf.charAt(0));
295:
296:                for (int i = 1; i < name.length() && legalIdentifier; i++) {
297:                    legalIdentifier = legalIdentifier
298:                            && Character.isJavaIdentifierPart(buf.charAt(i));
299:                }
300:
301:                boolean conventionalIdentifier = isConventionalIdentifier(buf,
302:                        type);
303:                if (legalIdentifier && conventionalIdentifier) {
304:                    if (JAXBUtils.isJavaKeyword(name)
305:                            && type == IdentifierType.VARIABLE) {
306:                        name = normalizePackageNamePart(name.toString());
307:                    }
308:                    return name;
309:                }
310:
311:                // split into words 
312:
313:                List<String> words = new ArrayList<String>();
314:
315:                StringTokenizer st = new StringTokenizer(name,
316:                        XML_NAME_PUNCTUATION_STRING);
317:                while (st.hasMoreTokens()) {
318:                    words.add(st.nextToken());
319:                }
320:
321:                for (int i = 0; i < words.size(); i++) {
322:                    splitWord(words, i);
323:                }
324:
325:                return makeConventionalIdentifier(words, type);
326:            }
327:
328:            private static void splitWord(List<String> words, int listIndex) {
329:                String word = words.get(listIndex);
330:                if (word.length() <= 1) {
331:                    return;
332:                }
333:                int index = listIndex + 1;
334:                StringBuffer sword = new StringBuffer(word);
335:                int first = 0;
336:                char firstChar = sword.charAt(first);
337:                if (Character.isLowerCase(firstChar)) {
338:                    sword.setCharAt(first, Character.toUpperCase(firstChar));
339:                }
340:                int i = 1;
341:
342:                while (i < sword.length()) {
343:                    if (Character.isDigit(firstChar)) {
344:                        while (i < sword.length()
345:                                && Character.isDigit(sword.charAt(i))) {
346:                            i++;
347:                        }
348:                    } else if (isCasedLetter(firstChar)) {
349:                        boolean previousIsLower = Character
350:                                .isLowerCase(firstChar);
351:                        while (i < sword.length()
352:                                && isCasedLetter(sword.charAt(i))) {
353:                            if (Character.isUpperCase(sword.charAt(i))
354:                                    && previousIsLower) {
355:                                break;
356:                            }
357:                            previousIsLower = Character.isLowerCase(sword
358:                                    .charAt(i));
359:                            i++;
360:                        }
361:                    } else {
362:                        // first must be a mark or an uncased letter
363:                        while (i < sword.length()
364:                                && (isMark(sword.charAt(i)) || !isCasedLetter(sword
365:                                        .charAt(i)))) {
366:                            i++;
367:                        }
368:                    }
369:
370:                    // characters from first to i are all either
371:                    // * digits
372:                    // * upper or lower case letters, with only the first one an upper
373:                    // * uncased letters or marks
374:
375:                    String newWord = sword.substring(first, i);
376:                    words.add(index, newWord);
377:                    index++;
378:                    if (i >= sword.length()) {
379:                        break;
380:                    } else {
381:                        first = i;
382:                        firstChar = sword.charAt(first);
383:                    }
384:                }
385:
386:                if (index > (listIndex + 1)) {
387:                    words.remove(listIndex);
388:                }
389:            }
390:
391:            private static boolean isMark(char c) {
392:                return Character.isJavaIdentifierPart(c)
393:                        && !Character.isLetter(c) && !Character.isDigit(c);
394:            }
395:
396:            private static boolean isCasedLetter(char c) {
397:                return Character.isUpperCase(c) || Character.isLowerCase(c);
398:            }
399:
400:            private static boolean isConventionalIdentifier(StringBuffer buf,
401:                    IdentifierType type) {
402:                if (null == buf || buf.length() == 0) {
403:                    return false;
404:                }
405:                boolean result = false;
406:                if (IdentifierType.CONSTANT == type) {
407:                    for (int i = 0; i < buf.length(); i++) {
408:                        if (Character.isLowerCase(buf.charAt(i))) {
409:                            return false;
410:                        }
411:                    }
412:                    result = true;
413:                } else if (IdentifierType.VARIABLE == type) {
414:                    result = Character.isLowerCase(buf.charAt(0));
415:                } else {
416:                    int pos = 3;
417:                    if (IdentifierType.GETTER == type
418:                            && !(buf.length() >= pos && "get".equals(buf
419:                                    .subSequence(0, 3)))) {
420:                        return false;
421:                    } else if (IdentifierType.SETTER == type
422:                            && !(buf.length() >= pos && "set".equals(buf
423:                                    .subSequence(0, 3)))) {
424:                        return false;
425:                    } else {
426:                        pos = 0;
427:                    }
428:                    result = Character.isUpperCase(buf.charAt(pos));
429:                }
430:                return result;
431:            }
432:
433:            private static String makeConventionalIdentifier(
434:                    List<String> words, IdentifierType type) {
435:                StringBuffer buf = new StringBuffer();
436:                boolean firstWord = true;
437:                if (IdentifierType.GETTER == type) {
438:                    buf.append("get");
439:                } else if (IdentifierType.SETTER == type) {
440:                    buf.append("set");
441:                }
442:                for (String w : words) {
443:                    int l = buf.length();
444:                    if (l > 0 && IdentifierType.CONSTANT == type) {
445:                        buf.append('_');
446:                        l++;
447:                    }
448:                    buf.append(w);
449:                    if (IdentifierType.CONSTANT == type) {
450:                        for (int i = l; i < buf.length(); i++) {
451:                            if (Character.isLowerCase(buf.charAt(i))) {
452:                                buf.setCharAt(i, Character.toUpperCase(buf
453:                                        .charAt(i)));
454:                            }
455:                        }
456:                    } else if (IdentifierType.VARIABLE == type) {
457:                        if (firstWord && Character.isUpperCase(buf.charAt(l))) {
458:                            buf.setCharAt(l, Character.toLowerCase(buf
459:                                    .charAt(l)));
460:                        }
461:                    } else {
462:                        if (firstWord && Character.isLowerCase(buf.charAt(l))) {
463:                            buf.setCharAt(l, Character.toUpperCase(buf
464:                                    .charAt(l)));
465:                        }
466:                    }
467:                    firstWord = false;
468:                }
469:                return buf.toString();
470:            }
471:
472:            public static Class<?> getValidClass(Class<?> cls) {
473:                if (cls.isEnum()) {
474:                    return cls;
475:                }
476:                if (cls.isArray()) {
477:                    return cls;
478:                }
479:
480:                if (cls == Object.class || cls == String.class
481:                        || cls == Holder.class) {
482:                    cls = null;
483:                } else if (cls.isPrimitive() || cls.isInterface()
484:                        || cls.isAnnotation()) {
485:                    cls = null;
486:                }
487:                if (cls != null) {
488:                    try {
489:                        if (cls.getConstructor(new Class[0]) == null) {
490:                            cls = null;
491:                        }
492:                    } catch (NoSuchMethodException ex) {
493:                        cls = null;
494:                    }
495:                }
496:                return cls;
497:            }
498:
499:        }
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