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1
6
7 package org.jfox.ejb.meta;
8
9 import java.lang.reflect.Method  ;
10 import java.util.ArrayList ;
11 import java.util.List ;
12
13 import org.jfox.ioc.util.XMLUtils;
14 import org.w3c.dom.Node ;
15
16
19
20 public class MethodDescriptor extends Descriptor implements Comparable {
21
22 private String ejbName;
23 private String intf;
24 private String name;
25 private String paramTypeNames[];
26
27 public MethodDescriptor() {
28
29 }
30
31 public void processXML(Node node) throws EJBDescriptionException {
32 super.processXML(node);
33 setEjbName(XMLUtils.getChildNodeValueOf(node, "ejb-name"));
34 setIntf(XMLUtils.getChildNodeValueOf(node, "method-intf"));
35 setName(XMLUtils.getChildNodeValueOf(node, "method-name"));
36 List params = new ArrayList ();
37 for(Node paramNode = node.getFirstChild(); paramNode != null; paramNode = paramNode.getNextSibling()) {
38 if(paramNode.getNodeType() == Node.ELEMENT_NODE && "method-param".equals(paramNode.getNodeName()))
39 params.add(XMLUtils.getValueOf(paramNode));
40 }
41 setParamTypeNames((String []) params.toArray(new String [0]));
42 }
43
44 public String getEjbName() {
45 return ejbName;
46 }
47
48 public void setEjbName(String ejbName) {
49 this.ejbName = ejbName;
50 }
51
52 public String getIntf() {
53 return intf;
54 }
55
56 public void setIntf(String intf) {
57 this.intf = intf;
58 }
59
60 public String getName() {
61 return name;
62 }
63
64 public void setName(String name) {
65 this.name = name;
66 }
67
68 public String [] getParamTypeNames() {
69 return paramTypeNames;
70 }
71
72 public void setParamTypeNames(String [] paramTypeNames) {
73 this.paramTypeNames = paramTypeNames;
74 }
75
76 public String getPrettyParameterString() {
77 if(paramTypeNames == null)
78 return "";
79 String readableString = "(";
80 for(int i = 0; i < paramTypeNames.length; i++) {
81 if(i > 0) readableString = readableString + ", ";
82 readableString = readableString + paramTypeNames[i];
83 }
84
85 readableString = readableString + ")";
86 return readableString;
87 }
88
89 public boolean isDefault() {
90 return name == null || name.equals("*");
91 }
92
93 public String toString() {
94 return getName() + getPrettyParameterString();
95 }
96
97 public int hashCode() {
98 return getName().hashCode() ^ getPrettyParameterString().hashCode();
99 }
100
101 public boolean match(Method method) {
102 if(isDefault())
103 return true;
104 if(!name.equals(method.getName()))
105 return false;
106 if(paramTypeNames == null)
107 return true;
108 Class _params[] = method.getParameterTypes();
109 if(_params.length != paramTypeNames.length)
110 return false;
111 for(int i = 0; i < _params.length; i++) {
112 String paramType = getTypeName(_params[i]);
113 if(!paramType.equals(paramTypeNames[i]))
114 return false;
115 }
116 return true;
117 }
118
119 private static final String getTypeName(Class clz) {
120 String typeName = "";
121 for(; clz.isArray(); clz = clz.getComponentType())
122 typeName = typeName + "[]";
123
124 return clz.getName() + typeName;
125 }
126
127 public int compareTo(Object methodDesc) {
128 if(!(methodDesc instanceof MethodDescriptor)) {
129 return 1;
130 }
131 String _intf = ((MethodDescriptor) methodDesc).getIntf();
132 String _name = ((MethodDescriptor) methodDesc).getName();
133 String [] _paramTypeNames = ((MethodDescriptor) methodDesc).getParamTypeNames();
134 if(!intf.equals(_intf))
135 return intf.compareTo(_intf);
136 if(name.equals("*"))
137 return _name.equals("*") ? 0 : 1;
138 if(_name.equals("*"))
139 return -1;
140 if(!name.equals(_name))
141 return name.compareTo(_name);
142 if(paramTypeNames == null)
143 return _paramTypeNames != null ? 1 : 0;
144 if(_paramTypeNames == null)
145 return -1;
146 if(paramTypeNames.length != _paramTypeNames.length)
147 return paramTypeNames.length - _paramTypeNames.length;
148 for(int i = 0; i < paramTypeNames.length; i++)
149 if(!paramTypeNames[i].equals(_paramTypeNames[i]))
150 return paramTypeNames[i].compareTo(_paramTypeNames[i]);
151
152 return 0;
153 }
154
155 public boolean equals(Object obj) {
156 if(obj != null && (obj instanceof MethodDescriptor))
157 return compareTo((MethodDescriptor) obj) == 0;
158 else
159 return false;
160 }
161
162 public static void main(String [] args) {
163
164 }
165 }
166
167 |
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