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1
2 package org.objectweb.jac.core.dist;
3
4 import java.lang.reflect.Field  ;
5 import java.util.Hashtable ;
6
7 import org.objectweb.jac.core.rtti.ClassRepository;
8
9 public class ObjectState {
10
11 public static Field [] getFields(Object object) {
12
13 Hashtable fields = ClassRepository.getDirectFieldAccess(object.getClass());
14 Object [] res = fields.values().toArray();
15 Field [] ares = new Field [res.length];
16 System.arraycopy ( res, 0, ares, 0, ares.length );
17 return ares;
18
19 }
20
21 public static Field getField(Object object,String name) {
22
23 Hashtable fields = ClassRepository.getDirectFieldAccess(object.getClass());
24 return (Field ) fields.get(name);
25
26 }
27
28 public static Object getFieldValue (Object substance,String fieldName) {
29 Hashtable ht = ClassRepository.getDirectFieldAccess(substance.getClass());
30 Field field = (Field ) ht.get(fieldName);
31 if ( field == null ) return null;
32 Object ret = null;
33 try {
34 ret = field.get(substance);
35 } catch ( Exception e ) {}
36 return ret;
37 }
38
39 public static Object [] getState (Object substance) {
40
41 Hashtable fields = ClassRepository.getDirectFieldAccess(substance.getClass());
42 Object [] tmp = fields.keySet().toArray();
43 String [] names = new String [tmp.length];
44 System.arraycopy( tmp, 0, names, 0, tmp.length );
45 Object [] values = new Object [tmp.length];
46 for ( int i = 0; i < names.length; i ++ ) {
47 Field f = (Field ) fields.get ( names[i] );
48 try {
49 values[i] = f.get(substance);
50 } catch ( Exception e ) {}
51 }
52
53 return new Object [] { names, values };
54 }
55
56 public static Object [] getState (Object substance,String [] fieldNames) {
57
58 Hashtable tmpfields = ClassRepository.getDirectFieldAccess(substance.getClass());
59 Hashtable fields = new Hashtable ();
60 for ( int i = 0; i < fieldNames.length; i ++ ) {
61 Field f = (Field ) tmpfields.get( fieldNames[i] );
62 if ( f != null ) {
63 fields.put( fieldNames[i], f );
64 }
65 }
66 Object [] tmp = fields.keySet().toArray();
67 String [] names = new String [tmp.length];
68 System.arraycopy( tmp, 0, names, 0, tmp.length );
69 Object [] values = new Object [tmp.length];
70 for ( int i = 0; i < names.length; i ++ ) {
71 Field f = (Field ) fields.get ( names[i] );
72 try {
73 values[i] = f.get(substance);
74 } catch ( Exception e ) {}
75 }
76
77 return new Object [] { names, values };
78 }
79
80 public static void setState (Object substance, Object [] state ) {
81
82 Hashtable fields = ClassRepository.getDirectFieldAccess(substance.getClass());
83 String [] names = (String [])state[0];
84 Object [] values = (Object [])state[1];
85 for ( int i = 0; i < names.length; i ++ ) {
86 Field f = (Field ) fields.get ( names[i] );
87 try {
88 f.set(substance,values[i]);
89 } catch ( Exception e ) {}
90 }
91 }
92
93 public static void setFieldValue (Object substance, String fieldName, Object value) {
94 Hashtable ht = ClassRepository.getDirectFieldAccess(substance.getClass());
95 Field field = (Field ) ht.get( fieldName );
96 if ( field == null ) return;
97 try {
98 field.set(substance, value);
99 } catch ( Exception e ) {}
100 }
101
102 }
103 |
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