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1
2
3 package com.db4odoc.f1.reflections;
4
5 import java.lang.reflect.Array  ;
6
7 import com.db4o.reflect.ReflectArray;
8 import com.db4o.reflect.ReflectClass;
9 import com.db4o.reflect.Reflector;
10 import com.db4o.reflect.jdk.JdkReflector;
11
12
13 public class LoggingArray implements ReflectArray {
14
15 private final Reflector _reflector;
16
17 LoggingArray(Reflector reflector){
18 _reflector = reflector;
19 }
20
21 public int[] dimensions(Object arr){
22 int count = 0;
23 ReflectClass claxx = _reflector.forObject(arr);
24 while (claxx.isArray()) {
25 count++;
26 claxx = claxx.getComponentType();
27 }
28 int dim[] = new int[count];
29 for (int i = 0; i < count; i++) {
30 try {
31 dim[i] = getLength(arr);
32 arr = get(arr, 0);
33 } catch (Exception e) {
34 return dim;
35 }
36 }
37 return dim;
38 }
39
40 public int flatten(
41 Object a_shaped,
42 int[] a_dimensions,
43 int a_currentDimension,
44 Object [] a_flat,
45 int a_flatElement) {
46 if (a_currentDimension == (a_dimensions.length - 1)) {
47 for (int i = 0; i < a_dimensions[a_currentDimension]; i++) {
48 a_flat[a_flatElement++] = getNoExceptions(a_shaped, i);
49 }
50 } else {
51 for (int i = 0; i < a_dimensions[a_currentDimension]; i++) {
52 a_flatElement =
53 flatten(
54 getNoExceptions(a_shaped, i),
55 a_dimensions,
56 a_currentDimension + 1,
57 a_flat,
58 a_flatElement);
59 }
60 }
61 return a_flatElement;
62 }
63
64 public Object get(Object onArray, int index) {
65 return Array.get(onArray, index);
66 }
67
68 public ReflectClass getComponentType(ReflectClass a_class) {
69 while (a_class.isArray()) {
70 a_class = a_class.getComponentType();
71 }
72 return a_class;
73 }
74
75 public int getLength(Object array) {
76 return Array.getLength(array);
77 }
78
79 private final Object getNoExceptions(Object onArray, int index){
80 try {
81 return get(onArray, index);
82 } catch (Exception e) {
83 return null;
84 }
85 }
86
87 public boolean isNDimensional(ReflectClass a_class) {
88 return a_class.getComponentType().isArray();
89 }
90
91 public Object newInstance(ReflectClass componentType, int length) {
92 return Array.newInstance(JdkReflector.toNative(componentType), length);
93 }
94
95 public Object newInstance(ReflectClass componentType, int[] dimensions) {
96 return Array.newInstance(JdkReflector.toNative(componentType), dimensions);
97 }
98
99 public void set(Object onArray, int index, Object element) {
100 if(element == null){
101 try{
102 Array.set(onArray, index, element);
103 }catch(Exception e){
104 }
107
108 }else{
109 Array.set(onArray, index, element);
110 }
111 }
112
113 public int shape(
114 Object [] a_flat,
115 int a_flatElement,
116 Object a_shaped,
117 int[] a_dimensions,
118 int a_currentDimension) {
119 if (a_currentDimension == (a_dimensions.length - 1)) {
120 for (int i = 0; i < a_dimensions[a_currentDimension]; i++) {
121 set(a_shaped, i, a_flat[a_flatElement++]);
122 }
123 } else {
124 for (int i = 0; i < a_dimensions[a_currentDimension]; i++) {
125 a_flatElement =
126 shape(
127 a_flat,
128 a_flatElement,
129 get(a_shaped, i),
130 a_dimensions,
131 a_currentDimension + 1);
132 }
133 }
134 return a_flatElement;
135 }
136
137
138 }
139
140 |
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