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1 package org.myoodb.core;
25
26 import java.util.*;
27 import java.lang.reflect.Method  ;
28
29 public final class MethodHelper
30 {
31 public final static String SIGNATURE_DELIMITER =",";
32
33 public static String getSignature(Class [] args)
34 {
35 StringBuilder result = new StringBuilder ();
36 result.append("\"");
37 for (int i = 0; i < args.length; i++)
38 {
39 if (i> 0)
40 {
41 result.append(SIGNATURE_DELIMITER);
42 }
43 result.append(args[i].getName());
44 }
45 result.append("\"");
46 return result.toString();
47 }
48
49 public static String getSignature(String [] args)
50 {
51 StringBuilder result = new StringBuilder ();
52 result.append("\"");
53 for (int i = 0; i < args.length; i++)
54 {
55 if (i> 0)
56 {
57 result.append(SIGNATURE_DELIMITER);
58 }
59 result.append(args[i]);
60 }
61 result.append("\"");
62 return result.toString();
63 }
64
65 public static int getMethodIndex(Method [] methods, Method method)
66 {
67 for (int i = 0; i < methods.length; i++)
68 {
69 if (method.equals(methods[i]) == true)
70 {
71 return i;
72 }
73 }
74
75 throw new org.myoodb.exception.InternalException("MethodHelper.getMethodIndex (unable to find method: " + method + " )");
76 }
77
78 public static Method [] getMethods(Class classType, Class interfaceType)
79 {
80 Method [] implMethods = classType.getMethods();
81 Method [] interfaceMethods = interfaceType.getMethods();
82
83 TreeSet initSet = new TreeSet();
84 for (int i = 0; i < implMethods.length; i++)
85 {
86 String implName = implMethods[i].getName();
87 String implSig = MethodHelper.getSignature(implMethods[i].getParameterTypes());
88 MethodSignature implMethodSig = new MethodSignature(interfaceType.getName(), implName, implSig, implMethods[i]);
89 initSet.add(implMethodSig);
90 }
91
92 TreeMap indexMap = new TreeMap();
93 for (int j = 0; j < interfaceMethods.length; j++)
94 {
95 String interfaceName = interfaceMethods[j].getName();
96 String interfaceSig = MethodHelper.getSignature(interfaceMethods[j].getParameterTypes());
97 MethodSignature interfaceMethodSig = new MethodSignature(interfaceType.getName(), interfaceName, interfaceSig, null);
98
99 org.myoodb.MyOodbIndex index = null;
100 MethodSignature foundMethodSig = null;
101
102 for (int k = 0; k < implMethods.length; k++)
103 {
104 String implName = implMethods[k].getName();
105 String implSig = MethodHelper.getSignature(implMethods[k].getParameterTypes());
106 MethodSignature implMethodSig = new MethodSignature(interfaceType.getName(), implName, implSig, implMethods[k]);
107
108 if (interfaceMethodSig.equals(implMethodSig) == true)
109 {
110 foundMethodSig = implMethodSig;
111 index = interfaceMethods[j].getAnnotation(org.myoodb.MyOodbIndex.class);
112 break;
113 }
114 }
115
116 if (index != null)
117 {
118 indexMap.put(new Integer (index.value()), foundMethodSig);
119 initSet.remove(foundMethodSig);
120 }
121 }
122
123 int index = 0;
124 Iterator iter = indexMap.values().iterator();
125 while (iter.hasNext())
126 {
127 MethodSignature methodSig = (MethodSignature) iter.next();
128 implMethods[index++] = methodSig.getMethod();
129 }
130
131 iter = initSet.iterator();
132 while (iter.hasNext())
133 {
134 MethodSignature methodSig = (MethodSignature) iter.next();
135 implMethods[index++] = methodSig.getMethod();
136 }
137
138 return implMethods;
139 }
140 }
141 |
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