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1
6
7 package com.jofti.introspect;
8
9 import java.io.File  ;
10 import java.io.ObjectStreamField ;
11 import java.lang.reflect.Array ;
12 import java.lang.reflect.InvocationTargetException ;
13 import java.lang.reflect.Method ;
14 import java.nio.ByteBuffer ;
15 import java.nio.CharBuffer ;
16 import java.nio.DoubleBuffer ;
17 import java.nio.FloatBuffer ;
18 import java.nio.IntBuffer ;
19 import java.nio.LongBuffer ;
20 import java.nio.ShortBuffer ;
21 import java.nio.charset.Charset ;
22 import java.sql.Timestamp ;
23 import java.text.CollationKey ;
24 import java.util.ArrayList ;
25 import java.util.Collection ;
26 import java.util.HashMap ;
27 import java.util.HashSet ;
28 import java.util.Iterator ;
29 import java.util.List ;
30 import java.util.Map ;
31 import java.util.Set ;
32
33 import org.apache.commons.logging.Log;
34 import org.apache.commons.logging.LogFactory;
35
36 import com.jofti.btree.ValueObject;
37 import com.jofti.config.IndexConfig;
38 import com.jofti.exception.JoftiException;
39 import com.jofti.exception.PropertyNotIndexedException;
40 import com.jofti.model.ComparableBoolean;
41 import com.jofti.model.ParsedObject;
42 import com.jofti.util.ReflectionUtil;
43
44 import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap;
45
46
47
55 public class JavaBeanClassIntrospector implements ClassIntrospector
56 {
57
58 private static Log log = LogFactory.getLog(JavaBeanClassIntrospector.class);
59
60
61 private static final String METHOD_PREFIX = "get";
62
63 private static final Class [] noArgs = new Class []{};
64
65 private static final int KEY_DIMENSION_VALUE = -1;
66
67 private static int keyDimensionCount = KEY_DIMENSION_VALUE;
68
69 private static final String NULL_ATTRIBUTE = "NULL METHOD";
70
71 private static final String ARRAY_ATTRIBUTE = "[element]";
72
73
74 private static Method ARRAY_METHOD = null;
75
76 private static Method COLLECTIONS_METHOD = null;
77
78 private static Method NULL_METHOD = null;
79
80 private static final Set defaultClasses = new HashSet ();
81
82 static {
83 defaultClasses.add( java.lang.String .class);
84 defaultClasses.add( java.lang.Integer .class);
85 defaultClasses.add( java.lang.Double .class);
86 defaultClasses.add( java.lang.Float .class);
87 defaultClasses.add( java.lang.Long .class);
88 defaultClasses.add( java.lang.Short .class);
89 defaultClasses.add( java.lang.Byte .class);
90 defaultClasses.add( java.lang.Character .class);
91 defaultClasses.add(java.math.BigInteger .class);
92 defaultClasses.add(java.math.BigDecimal .class);
93 defaultClasses.add(java.util.Date .class);
94 defaultClasses.add(Timestamp .class);
95 defaultClasses.add(java.net.URI .class);
96 defaultClasses.add(ComparableBoolean.class);
97
98 defaultClasses.add( java.lang.String [].class);
99 defaultClasses.add( java.lang.Integer [].class);
100 defaultClasses.add( java.lang.Double [].class);
101 defaultClasses.add( java.lang.Float [].class);
102 defaultClasses.add( java.lang.Long [].class);
103 defaultClasses.add( java.lang.Short [].class);
104 defaultClasses.add( java.lang.Byte [].class);
105 defaultClasses.add( java.lang.Character [].class);
106 defaultClasses.add(java.math.BigInteger [].class);
107 defaultClasses.add(java.math.BigDecimal [].class);
108 defaultClasses.add(java.util.Date [].class);
109 defaultClasses.add(Timestamp [].class);
110 defaultClasses.add(java.net.URI [].class);
111 defaultClasses.add(ComparableBoolean[].class);
112 defaultClasses.add(java.lang.Boolean [].class);
113 defaultClasses.add(int[].class);
114 defaultClasses.add(long[].class);
115 defaultClasses.add(short[].class);
116 defaultClasses.add(byte[].class);
117 defaultClasses.add(boolean[].class);
118 defaultClasses.add(char[].class);
119 defaultClasses.add(float[].class);
120 defaultClasses.add(double[].class);
121 }
122
123 private static final Set excludedComparableClasses = new HashSet ();
124
125 static {
126 excludedComparableClasses.add( ByteBuffer .class);
127 excludedComparableClasses.add( CharBuffer .class);
128 excludedComparableClasses.add( Charset .class);
129 excludedComparableClasses.add( CollationKey .class);
130 excludedComparableClasses.add( DoubleBuffer .class);
131 excludedComparableClasses.add( File .class);
132 excludedComparableClasses.add( FloatBuffer .class);
133 excludedComparableClasses.add( IntBuffer .class);
134 excludedComparableClasses.add( LongBuffer .class);
135 excludedComparableClasses.add( ObjectStreamField .class);
136 excludedComparableClasses.add( ShortBuffer .class);
137
138 }
139
140
141 static {
142 try{
143 ARRAY_METHOD = JavaBeanClassIntrospector.class.getDeclaredMethod("arrayMethod",
144 new Class []{});
145
146 COLLECTIONS_METHOD = JavaBeanClassIntrospector.class.getDeclaredMethod("collectionsMethod",
147 new Class []{});
148
149 NULL_METHOD = JavaBeanClassIntrospector.class.getDeclaredMethod("nullMethod",
150 new Class []{});
151 }catch (Exception e){
152
153 }
154 }
155
156 private void arrayMethod(){
157
158 }
159
160 private void nullMethod(){
161
162 }
163
164 private void collectionsMethod(){
165
166 }
167
168 private Set primitiveSet = java.util.Collections.unmodifiableSet(defaultClasses);
169
170 Map dimensionMap = new ConcurrentHashMap();
171
172 Map interfaceMap = new ConcurrentHashMap();
173
174 Map concreteMap = new ConcurrentHashMap();
175
176 Map keyDimensionMap = new ConcurrentHashMap();
177
178
179 private ClassUtils utils = new ClassUtils();
180
181
184 public void parseConfig(IndexConfig config) throws JoftiException {
185
186 Map configMap = config.getIndexMappings();
187 if (configMap == null) {
189 return;
190 }
191
192 int dimensionCount = 0;
194
195 for (Iterator it = configMap.keySet().iterator(); it.hasNext();) {
197 String className = (String ) it.next();
199 Class clazz = null;
200
201 try {
203 clazz = ReflectionUtil.classForName(className);
204 } catch (Exception e) {
205 log.info("No class found for " + className);
206 throw new JoftiException(e);
207 }
208
209 ParsedObject parsedObject = new ParsedObject();
211
212 parsedObject.setClassValue(clazz);
213 Map classMap = new ConcurrentHashMap();
214 Map methodMap = new ConcurrentHashMap();
215 Map dimensionClassMap = new ConcurrentHashMap();
216 Map fieldMethodMap = new ConcurrentHashMap();
217
218 parsedObject.setFieldValues(classMap);
219 parsedObject.setMethodValues(methodMap);
220 parsedObject.setDimensionClassMappings(dimensionClassMap);
221 parsedObject.setFieldMethods(fieldMethodMap);
222
223 List properties = (List ) configMap.get(className);
225 if (clazz.isInterface()) {
226 parsedObject.setInterface(true);
227 }
228
230 dimensionCount = parseAttribtes(dimensionCount, clazz, classMap,
231 methodMap, dimensionClassMap, fieldMethodMap,properties);
232
233 dimensionMap.put(clazz, parsedObject);
234
235 }
236
237 parseBuiltInClasses(dimensionCount);
238 }
239
240
250
251
252
253 private int parseAttribtes(int dimensionCount, Class clazz, Map classMap, Map methodMap, Map dimensionClassMap, Map fieldMethodMap, List attributes) throws JoftiException
254 {
255
256
257 if (attributes != null){
258
259
260 int size = attributes.size();
261 Iterator attribIterator = attributes.iterator();
262 for (int i=0;i<size;i++) {
263 String attribute = (String )attribIterator.next();
264
265 Object [] methods = getMethodArray(clazz, attribute);
266 if (methods == null || methods.length ==0){
267 throw new JoftiException("No getter method found for attribute " + attribute + " in class " + clazz);
268 } else{
269
270
271 Class returnType = null;
272 if (methods[methods.length-1] == ARRAY_METHOD){
273
274 throw new JoftiException("terminating value cannot be an array type");
275 }else if (methods[methods.length-1] instanceof Method ){
276 returnType = ((Method )methods[methods.length-1]).getReturnType();
277 }else{
278 returnType = (Class )methods[methods.length-1];
280 }
281
282
283 if (returnType.isPrimitive() || returnType == Boolean .class){
285 returnType = boxPrimitive(returnType);
286 }
287
288
290 if (Comparable .class.isAssignableFrom(returnType) && !excludedComparableClasses.contains(returnType) ){
291 Integer dimension = new Integer (dimensionCount);
292 classMap.put(attribute,dimension);
293 methodMap.put(methods,dimension );
294 dimensionClassMap.put(dimension,returnType);
295 fieldMethodMap.put(attribute,methods);
296 dimensionCount++;
297 } else{
298 throw new JoftiException("Attribute " + attribute + " is not Comparable in class " +clazz + " or is an excluded Comparable type");
299 }
300
301 }
302 }
303
304 }
305 return dimensionCount;
306 }
307
308
313 public Object [] getMethodsForAttribute(Class clazz,String attribute) throws JoftiException{
314
315 Object [] results =null;
316
317 ParsedObject obj = (ParsedObject)dimensionMap.get(clazz);
319 if (obj != null){
320 Map fieldMethods = obj.getFieldMethods();
322
324 if (fieldMethods.containsKey(NULL_ATTRIBUTE)){
326 if ("value".equalsIgnoreCase(attribute)){
327 return (Object [])fieldMethods.get(NULL_ATTRIBUTE);
328 }else{
329 throw new JoftiException("Attribute "+ attribute + " is not allowed for Class "+ clazz + " can only have attribute VALUE or must be a whole object ");
330 }
331 }
332 results = (Object [])fieldMethods.get(attribute);
333
334 if (results == null){
335
336
339 results = getMethodArray(clazz,attribute);
340 }
341 return results;
342 }else{
343 results = getMethodArray(clazz,attribute);
344 }
345 return results;
346 }
347
348 private Object [] getMethodArray(Class clazz, String attribute)throws JoftiException {
349 Object [] methods =null;
350 try {
351 methods = preProcessAttribute(attribute);
352 methods =constructMethodArray(methods, clazz);
353
354 } catch (JoftiException e){
355 log.warn("No getter method found for attribute " + attribute + ": " + e);
356 throw new JoftiException("No getter method found for attribute " + attribute +" on " + clazz,e);
357 }
358 return methods;
359 }
360
361
364 private void parseBuiltInClasses(int dimensionCount)
365 {
366 for (Iterator it = defaultClasses.iterator();it.hasNext();){
368
369 ParsedObject parsedObject = new ParsedObject();
370 Class temp = (Class )it.next();
371 parsedObject.setClassValue(temp);
372 Map classMap = new HashMap ();
373 Map methodMap = new HashMap ();
374 Map fieldMethodMap = new HashMap ();
375
376 parsedObject.setFieldValues(classMap);
377 parsedObject.setMethodValues(methodMap);
378 parsedObject.setFieldMethods(fieldMethodMap);
379
380 Integer dimension = new Integer (dimensionCount);
381 String attribute =null;
382
383 Object [] meth =null;
384 if (temp.isArray()){
385 meth = new Object [2];
386 meth[0]=ARRAY_METHOD;
387 meth[1]=temp.getComponentType();
388 attribute= ARRAY_ATTRIBUTE;
389 }else{
390 meth = new Object [1];
391 meth[0]=NULL_METHOD;
392 attribute = NULL_ATTRIBUTE;
393 }
394
395 methodMap.put(meth,dimension);
396 classMap.put(attribute,dimension);
397 fieldMethodMap.put(attribute,meth);
398
399
400 dimensionCount++;
401 dimensionMap.put(temp,parsedObject);
402 }
403 }
404
405 public Class boxPrimitive(Class clazz){
406 if (clazz == Integer.TYPE){
407 return Integer .class;
408 }else if (clazz == Double.TYPE){
409 return Double .class;
410 }else if (clazz == Long.TYPE){
411 return Long .class;
412 }else if (clazz == Float.TYPE){
413 return Float .class;
414 }else if (clazz == Short.TYPE){
415 return Short .class;
416 }else if (clazz == Byte.TYPE){
417 return Byte .class;
418 }else if (clazz == Character.TYPE){
419 return Character .class;
420 }else{
421 return ComparableBoolean.class;
422 }
423 }
424
425
428 public Class getClassForAttribute(Class className, String attribute) throws JoftiException{
429
430 ParsedObject obj = (ParsedObject)dimensionMap.get(className);
431 if (obj != null){
432 Object returnObj =null;
433 if ( (returnObj= obj.getFieldValues().get(NULL_ATTRIBUTE)) != null){
435 if (attribute != null && !"value".equalsIgnoreCase(attribute)){
437 throw new JoftiException ("Only field value 'VALUE' can be used for class "+ className);
438 }
439 return className;
440 } else if ( (returnObj= obj.getFieldValues().get(ARRAY_ATTRIBUTE)) != null){
441 if (attribute.equalsIgnoreCase(ARRAY_ATTRIBUTE)){
443 return className;
444 }else{
445 throw new PropertyNotIndexedException(" property "+ attribute + " cannot refer to an element in "+ className + " use "+ ARRAY_ATTRIBUTE);
446
447 }
448
449 }else {
450 try {
451 return (Class ) obj.getDimensionClassMappings().get(obj.getFieldValues().get(attribute));
452 } catch (Throwable e){
453 throw new PropertyNotIndexedException(" property "+ attribute + " not indexed in " + className);
454 }
455 }
456 }else{
457 throw new PropertyNotIndexedException(" class "+ className + " not in index");
458 }
459 }
460
461
462 private Object [] preProcessAttribute(String attribute) throws JoftiException{
463 List tempList = new ArrayList ();
464 int startFragment =0;
465 int endFragment =0;
466 boolean inArray=false;
467 if (attribute.length() ==1){
468 return new Object []{attribute};
469 }
470 for (int i=0;i<attribute.length();i++){
471 if (attribute.charAt(i)=='['){
472 inArray = true;
473 startFragment =i;
474 }else if (attribute.charAt(i)==']'){
475
476 endFragment =i;
477 }else if ( i ==attribute.length()-1){
478 endFragment =i;
479 }
480 else if (! inArray){
481 if (attribute.charAt(i)=='.'){
482 endFragment = i;
483 }
484 }else {
485
486 }
487 if (endFragment > startFragment ){
488 if (inArray || i== attribute.length()-1){
490 endFragment = endFragment+1;
491 }
492 String temp = attribute.substring(startFragment,endFragment);
493 if (temp.startsWith(".")){
494 temp = temp.substring(1);
495 }
496
497 tempList.add(temp);
498 startFragment = endFragment;
499 inArray =false;
500 }
501 }
502 return tempList.toArray();
503
504 }
505
506 private Object [] constructMethodArray(Object [] attributes,
507 Class originalClass) throws JoftiException {
508
509 List methods = new ArrayList ();
510
511 try {
512
514
515
516 Method tempMethod = null;
517 int j= attributes.length;
518 int k=0;
519 for (int i = 0; i < j; i++) {
520
521 if (originalClass.isArray() && attributes[i].equals("[element]")){
522
523 if (originalClass.getComponentType().equals(Object .class)){
525 throw new JoftiException("Types to be indexed in an Object array must be specified");
526 }
527
528
531 methods.add(ARRAY_METHOD);
532
533
535 originalClass = originalClass.getComponentType();
536 methods.add(originalClass);
537
538 }else if (originalClass.isArray()){
539 String tempClass = ((String )attributes[i]).substring(1,((String )attributes[i]).length()-1);
541 methods.add(ARRAY_METHOD);
542 Class elementClass =null;
543 try{
544 elementClass = ReflectionUtil.classForName(tempClass);
545 } catch (Exception e){
546 throw new JoftiException(e);
547 }
548
549 if (originalClass.getComponentType().isAssignableFrom(elementClass) ){
550 originalClass = elementClass;
551
552 methods.add(originalClass);
553
554 }else{
555 throw new JoftiException("element type "+ elementClass + " is not assignable to " + originalClass.getComponentType());
556 }
557
558 } else if (originalClass.isAssignableFrom(Collection .class) && attributes[i].equals("[element]")){
559
560 if (originalClass.getComponentType() == null || originalClass.getComponentType().equals(Object .class)){
562 throw new JoftiException("Types to be indexed in a Collection must be specified by Type");
563 }
564
565
566 }else if (Collection .class.isAssignableFrom(originalClass)){
567
568 String tempClass = ((String )attributes[i]).substring(1,((String )attributes[i]).length()-1);
569 methods.add(COLLECTIONS_METHOD);
570 Class elementClass =null;
571 try{
572 elementClass = ReflectionUtil.classForName(tempClass);
573 } catch (Exception e){
574 throw new JoftiException(e);
575 }
576
577 methods.add(elementClass);
578 originalClass = elementClass;
579 }else{
580
581
582
583
584 tempMethod = getMethod(originalClass,(String )attributes[i],noArgs);
585
586 methods.add( tempMethod);
587 originalClass = tempMethod.getReturnType();
588
589 }
590
591 }
592
593 } catch (NoSuchMethodException nme) {
594 throw new JoftiException(nme);
595 }
596
597
598
599
600 return methods.toArray();
601 }
602
603 private Method getMethod(Class originalClass, String attribute, Class [] args) throws NoSuchMethodException
604 {
605 StringBuffer buf = new StringBuffer (attribute);
606 buf.setCharAt(0, Character.toUpperCase(buf.charAt(0)));
607 buf.insert(0, METHOD_PREFIX);
608 return originalClass.getMethod(buf.toString(), args);
609
610 }
611
612
613
616
617 public int getDimension(String className, String propertyName) throws JoftiException {
618 Class clazz = null;
619
620 try {
621 clazz = ReflectionUtil.classForName(className);
622 } catch (Exception e){
623 log.info("No class found for " + className);
624 throw new JoftiException(e);
625 }
626 return getDimension(clazz, propertyName);
627 }
628 public int getDimension(Class clazz, String propertyName) throws JoftiException {
629
630 int temp =0;
631 ParsedObject obj = (ParsedObject)dimensionMap.get(clazz);
632 if (obj != null){
633 Object returnObj =null;
634 if ( (returnObj= obj.getFieldValues().get(NULL_ATTRIBUTE)) != null){
636 temp = ((Integer )returnObj).intValue();
638 } else if ( (returnObj= obj.getFieldValues().get(ARRAY_ATTRIBUTE)) != null){
639 temp = ((Integer )returnObj).intValue();
641 } else {
642 try {
643 temp = ((Integer )obj.getFieldValues().get(propertyName)).intValue();
644 } catch (Throwable e){
645 throw new PropertyNotIndexedException("no dimension found for property "+ propertyName);
646 }
647 }
648 }else{
649 throw new PropertyNotIndexedException("no dimension found for class "+ clazz);
650 }
651 return temp;
652 }
653
654
657 public int getKeyDimension() {
658
659 return KEY_DIMENSION_VALUE;
660 }
661
662 public synchronized int getKeyDimension(Class className) {
663
664 Integer temp = (Integer )keyDimensionMap.get(className);
665 if (temp == null){
666 temp = new Integer (keyDimensionCount--);
667 keyDimensionMap.put(className, temp);
668 }
669 return temp.intValue();
670 }
671
672
675 public Map getAttributeValues(Object obj) throws JoftiException {
676
677
678 if (obj == null){
679 return new HashMap (1);
680 }
681
682
683 obj =utils.wrapObject(obj);
684
685 Class objClass = obj.getClass();
686 List parsedList = getParsedObjectsForClass(objClass);
687
688 if (parsedList.size() >0){
690 return getValuesFromParsedObjects(obj,parsedList);
691 } else{
692
693 if (log.isDebugEnabled()){
694 log.debug("no mapping found for class "+ objClass);
695 }
696 return new HashMap (1);
697 }
698 }
699
700 public List getParsedObjectsForClass(Class clazz){
701 List temp = new ArrayList ();
702
703 Class [] interfaceArray = (Class [])interfaceMap.get(clazz);
705 if (interfaceArray == null){
706 interfaceArray = utils.getInterfaces(clazz);
707 if (!java.lang.reflect.Proxy.isProxyClass(clazz)){
709 interfaceMap.put(clazz,interfaceArray);
710 }
711 }
712 temp = getParsedClassesForArray(interfaceArray,temp);
713
714 if (!java.lang.reflect.Proxy.isProxyClass(clazz)){
716 Class [] concreteArray = (Class [])concreteMap.get(clazz);
717 if (concreteArray == null){
718 concreteArray = utils.getClasses(clazz);
719 concreteMap.put(clazz,concreteArray);
720 }
721 temp = getParsedClassesForArray(concreteArray,temp);
722 }
723 return temp;
724
725 }
726
727 private List getParsedClassesForArray(Class [] array, List temp){
728 for (int i=0;i<array.length;i++){
729 ParsedObject parsedObj = (ParsedObject)dimensionMap.get(array[i]);
731 if (parsedObj != null){
732 temp.add(parsedObj);
733 }
734 }
735 return temp;
736 }
737
738 private Map getValuesFromParsedObjects(Object obj,List parsedObjects){
739 Map temp = new HashMap (2);
740
741 for (int i=0;i<parsedObjects.size();i++){
742 ParsedObject parsedObj = (ParsedObject)parsedObjects.get(i);
743 temp = getValuesFromParsedObject(temp,obj,parsedObj);
744 }
745 return temp;
746
747 }
748
749 public Map getResultValuesFromObject(Map temp, Object obj,Map methodMap){
750 int size = methodMap.size();
751 Iterator it = methodMap.entrySet().iterator();
752 for (int j=0;j<size;j++) {
753 Object tempObj = obj;
754 Map.Entry entry = (Map.Entry )it.next();
757 Object [] methods = (Object [])entry.getValue();
758 if (methods ==null){
759
760 temp.put(entry.getKey(),tempObj);
761 } else {
762 List results = new ArrayList ();
763 try {
764 tempObj = processMethodArray(tempObj, methods);
765
766
767 if (tempObj != null){
768
769 temp.put(entry.getKey(),tempObj);
770 }else{
771 temp.put(entry.getKey(),null);
772 }
773 } catch (Exception e){
774 throw new IllegalArgumentException (e.getMessage());
775
776 }
777 }
778
779 }
780 return temp;
781
782 }
783 private Map getValuesFromParsedObject(Map temp, Object obj,ParsedObject parsedObj){
784
785 Set tempSet = parsedObj.getMethodValues().entrySet();
786 int size = tempSet.size();
787 Iterator it = tempSet.iterator();
788 for (int j=0;j<size;j++) {
789 Object tempObj = obj;
790 Map.Entry entry = (Map.Entry )it.next();
793 Object [] methods = (Object [])entry.getKey();
794 if (methods ==null){
795
796 temp.put(entry.getValue(),utils.wrapObject(tempObj));
797 } else {
798 List results = new ArrayList ();
799 try {
800 tempObj = processMethodArray(tempObj, methods);
801
802
803 if (tempObj != null){
804
805 temp.put(entry.getValue(),utils.wrapObject(tempObj));
806 }else{
807 temp.put(entry.getValue(),ValueObject.MIN_COMAPARBLE_VALUE);
808 }
809 } catch (Exception e){
810 throw new IllegalArgumentException (e.getMessage());
811
812 }
813 }
814
815 }
816 return temp;
817 }
818
819 public Object getResultFromMethods(Object obj, Object [] methods) throws JoftiException{
820 Object retVal =null;
821 try {
822 retVal = processMethodArray(obj, methods);
823 }catch (Exception e){
824 throw new JoftiException(e);
825 }
826 return retVal;
827
828 }
829
830
837 private Object processMethodArray(Object tempObj, Object [] methods) throws IllegalAccessException , InvocationTargetException {
838 for (int i =0;i <methods.length;i++){
839 if (tempObj == null){
840 break;
841 }
842 if (methods[i] == ARRAY_METHOD){
843 tempObj = getRealArrayValues(tempObj,(Class )methods[i+1]);
845 }else if (methods[i] == NULL_METHOD){
846 }else if (tempObj.getClass().isArray() && methods[i] instanceof Method ){
849 tempObj = applyMethodsToArray(tempObj,(Method )methods[i]);
851 }else if (tempObj.getClass().isArray() && methods[i] instanceof Class ){
852 tempObj = getArrayValues(tempObj,(Class )methods[i] );
854 }else if (methods[i] == COLLECTIONS_METHOD){
855 tempObj = getRealCollectionValues((Collection )tempObj,(Class )methods[i+1]);
857 } else if (Collection .class.isAssignableFrom(tempObj.getClass()) && methods[i] instanceof Method ){
858 tempObj = applyMethodsToCollection((Collection )tempObj,(Method )methods[i]);
860 }else if (Collection .class.isAssignableFrom(tempObj.getClass()) && methods[i] instanceof Class ){
861 tempObj = getCollectionValues((Collection )tempObj,(Class )methods[i] );
863 }else {
864
865 tempObj = ((Method )methods[i]).invoke(tempObj,noArgs);
866 }
867 }
868 return tempObj;
870 }
871
872 private Object [] applyMethodsToArray( Object array, Method meth){
873
874 int size = Array.getLength(array);
875 List res = new ArrayList ();
876 for (int i=0;i<size;i++){
877
878 Object temp = Array.get(array,i);
879
880 if (temp != null ){
881
882 try {
883 temp= meth.invoke(temp,noArgs);
884 } catch (IllegalArgumentException e) {
885
886 log.warn(e);
887 } catch (IllegalAccessException e) {
888
889 log.warn(e);
890 } catch (InvocationTargetException e) {
891 log.warn(e);
892 }
893
894 }
895 if (temp != null){
896 res.add(temp);
897 }
898 }
899 if (res.size() == 0){
900 return null;
901 }else{
902 return res.toArray();
903 }
904
905 }
906
907 private Object [] applyMethodsToCollection( Collection col, Method meth){
908
909
910 List res = new ArrayList ();
911
912 int size = col.size();
913 Iterator it = col.iterator();
914 for (int i=0;i<size;i++) {
915
916 Object temp = it.next();
917
918 if (temp != null ){
919
920 try {
921 temp= meth.invoke(temp,noArgs);
922 } catch (IllegalArgumentException e) {
923 log.warn(e);
924 } catch (IllegalAccessException e) {
925 log.warn(e);
926
927 } catch (InvocationTargetException e) {
928 log.warn(e);
929 }
930
931 }
932 if (temp != null){
933 res.add(temp);
934 }
935 }
936 if (res.size() == 0){
937 return null;
938 }else{
939 return res.toArray();
940 }
941
942 }
943 private Object [] getArrayValues( Object array, Class type){
944
945 int size = Array.getLength(array);
946 List res = new ArrayList ();
947 for (int i=0;i<size;i++){
948
949 Object temp = Array.get(array,i);
950 if (type.isPrimitive() ){
951 res.add(utils.wrapObject(temp));
952 }else
953 if (temp != null && (type.isAssignableFrom(temp.getClass()) ||type.isAssignableFrom(utils.wrapObject(temp.getClass()).getClass())) ){
954 res.add(utils.wrapObject(temp));
955 }
956 }
957 if (res.size() == 0){
958 return null;
959 }else{
960 return res.toArray();
961 }
962
963 }
964
965 private Object [] getCollectionValues( Collection col, Class type){
966
967
968 List res = new ArrayList ();
969 int size = col.size();
970 Iterator it = col.iterator();
971 for (int i=0;i<size;i++) {
972
973 Object temp = it.next();
974
975 if (temp != null && (type.isAssignableFrom(temp.getClass()) ||type.isAssignableFrom(utils.wrapObject(temp.getClass()).getClass())) ){
976 res.add(utils.wrapObject(temp));
977 }
978 }
979 if (res.size() == 0){
980 return null;
981 }else{
982 return res.toArray();
983 }
984
985 }
986
987 private Object [] getRealCollectionValues( Collection col, Class type){
988
989
990 List res = new ArrayList ();
991
992 int size = col.size();
993 Iterator it = col.iterator();
994 for (int i=0;i<size;i++) {
995
996 Object temp = it.next();
997
998 if (temp != null && (type.isAssignableFrom(temp.getClass()) ||type.isAssignableFrom(utils.wrapObject(temp.getClass()).getClass())) ){
999 res.add(temp);
1000 }
1001 }
1002 if (res.size() == 0){
1003 return null;
1004 }else{
1005 return res.toArray();
1006 }
1007
1008 }
1009
1010
1011
1012 private Object [] getRealArrayValues( Object array, Class type){
1013
1014 int size = Array.getLength(array);
1015 List res = new ArrayList ();
1016 for (int i=0;i<size;i++){
1017
1018 Object temp = Array.get(array,i);
1019 if (array.getClass().getComponentType().isPrimitive()){
1020 res.add(temp);
1021 }else
1022 if (temp != null && (type.isAssignableFrom(temp.getClass()) ||type.isAssignableFrom(utils.wrapObject(temp.getClass()).getClass())) ){
1023 res.add(temp);
1024 }
1025 }
1026 if (res.size() == 0){
1027 return null;
1028 }else{
1029 return res.toArray();
1030 }
1031
1032 }
1033
1036 public Map getKeyDimensions() {
1037 return keyDimensionMap;
1038 }
1039
1040
1041
1044 public Set getPrimitiveClasses() {
1045 return primitiveSet;
1046 }
1047
1048
1049
1050 public Map getDimensions() {
1051
1052 return dimensionMap;
1053 }
1054
1055
1056
1057}
1058
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Java API By Example, From Geeks To Geeks.