|
1 |
| |
|
2 |
| |
|
3 |
| |
|
4 |
| package net.sourceforge.pmd.jaxen; |
|
5 |
| |
|
6 |
| import net.sourceforge.pmd.ast.Node; |
|
7 |
| |
|
8 |
| import java.lang.reflect.InvocationTargetException; |
|
9 |
| import java.lang.reflect.Method; |
|
10 |
| import java.util.Iterator; |
|
11 |
| import java.util.Map; |
|
12 |
| import java.util.HashMap; |
|
13 |
| import java.util.List; |
|
14 |
| import java.util.ArrayList; |
|
15 |
| import java.util.LinkedList; |
|
16 |
| |
|
17 |
| |
|
18 |
| |
|
19 |
| |
|
20 |
| public class AttributeAxisIterator implements Iterator { |
|
21 |
| |
|
22 |
| private static class MethodWrapper { |
|
23 |
| public Method method; |
|
24 |
| public String name; |
|
25 |
1060
| public MethodWrapper(Method m) {
|
|
26 |
1060
| this.method = m;
|
|
27 |
1060
| this.name = truncateMethodName(m.getName());
|
|
28 |
| } |
|
29 |
1060
| private String truncateMethodName(String n) {
|
|
30 |
| |
|
31 |
1060
| if (n.startsWith("get")) {
|
|
32 |
669
| n = n.substring("get".length());
|
|
33 |
391
| } else if (n.startsWith("is")) {
|
|
34 |
378
| n = n.substring("is".length());
|
|
35 |
13
| } else if (n.startsWith("has")) {
|
|
36 |
2
| n = n.substring("has".length());
|
|
37 |
11
| } else if (n.startsWith("uses")) {
|
|
38 |
10
| n = n.substring("uses".length());
|
|
39 |
| } |
|
40 |
1060
| return n;
|
|
41 |
| } |
|
42 |
| } |
|
43 |
| |
|
44 |
| private Object currObj; |
|
45 |
| private MethodWrapper[] methodWrappers; |
|
46 |
| private int position; |
|
47 |
| private Node node; |
|
48 |
| |
|
49 |
| private static Map methodCache = new HashMap(); |
|
50 |
| |
|
51 |
696
| public AttributeAxisIterator(Node contextNode) {
|
|
52 |
696
| this.node = contextNode;
|
|
53 |
696
| if (!methodCache.containsKey(contextNode.getClass())) {
|
|
54 |
124
| Method[] preFilter = contextNode.getClass().getMethods();
|
|
55 |
124
| List postFilter = new ArrayList();
|
|
56 |
124
| for (int i = 0; i<preFilter.length; i++) {
|
|
57 |
6479
| if (isAttribute(preFilter[i])) {
|
|
58 |
1060
| postFilter.add(new MethodWrapper(preFilter[i]));
|
|
59 |
| } |
|
60 |
| } |
|
61 |
124
| methodCache.put(contextNode.getClass(), (MethodWrapper[])postFilter.toArray(new MethodWrapper[postFilter.size()]));
|
|
62 |
| } |
|
63 |
696
| this.methodWrappers = (MethodWrapper[])methodCache.get(contextNode.getClass());
|
|
64 |
| |
|
65 |
696
| this.position = 0;
|
|
66 |
696
| this.currObj = getNextAttribute();
|
|
67 |
| } |
|
68 |
| |
|
69 |
6126
| public Object next() {
|
|
70 |
6126
| if (currObj == null) {
|
|
71 |
0
| throw new IndexOutOfBoundsException();
|
|
72 |
| } |
|
73 |
6126
| Object ret = currObj;
|
|
74 |
6126
| currObj = getNextAttribute();
|
|
75 |
6126
| return ret;
|
|
76 |
| } |
|
77 |
| |
|
78 |
7516
| public boolean hasNext() {
|
|
79 |
7516
| return currObj != null;
|
|
80 |
| } |
|
81 |
| |
|
82 |
1
| public void remove() {
|
|
83 |
1
| throw new UnsupportedOperationException();
|
|
84 |
| } |
|
85 |
| |
|
86 |
6822
| private Attribute getNextAttribute() {
|
|
87 |
6822
| if (position == methodWrappers.length) {
|
|
88 |
695
| return null;
|
|
89 |
| } |
|
90 |
6127
| MethodWrapper m = methodWrappers[position];
|
|
91 |
6127
| position++;
|
|
92 |
6127
| return new Attribute(node, m.name, m.method);
|
|
93 |
| } |
|
94 |
| |
|
95 |
6479
| protected boolean isAttribute(Method method) {
|
|
96 |
6479
| return (Integer.TYPE == method.getReturnType() || Boolean.TYPE == method.getReturnType() || String.class == method.getReturnType())
|
|
97 |
| && (method.getParameterTypes().length == 0) |
|
98 |
| && (Void.TYPE != method.getReturnType()) |
|
99 |
| && !method.getName().startsWith("jjt") |
|
100 |
| && !method.getName().equals("toString") |
|
101 |
| && !method.getName().equals("getScope") |
|
102 |
| && !method.getName().equals("getClass") |
|
103 |
| && !method.getName().equals("getTypeNameNode") |
|
104 |
| && !method.getName().equals("getImportedNameNode") |
|
105 |
| && !method.getName().equals("hashCode"); |
|
106 |
| } |
|
107 |
| } |
