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1 package net.sourceforge.pmd.rules;
2
3 import java.util.Stack  ;
4
5 import net.sourceforge.pmd.AbstractRule;
6 import net.sourceforge.pmd.ast.ASTClassOrInterfaceDeclaration;
7 import net.sourceforge.pmd.ast.ASTClassOrInterfaceType;
8 import net.sourceforge.pmd.ast.ASTEnumDeclaration;
9 import net.sourceforge.pmd.ast.ASTReferenceType;
10 import net.sourceforge.pmd.ast.ASTType;
11 import net.sourceforge.pmd.ast.ASTVariableDeclarator;
12 import net.sourceforge.pmd.ast.SimpleJavaNode;
13 import net.sourceforge.pmd.ast.SimpleNode;
14
15 public class MoreThanOneLogger extends AbstractRule {
16
17 private Stack stack = new Stack ();
18
19 private Integer count;
20
21 public Object visit(ASTClassOrInterfaceDeclaration node, Object data) {
22 return init (node, data);
23 }
24
25 public Object visit(ASTEnumDeclaration node, Object data) {
26 return init (node, data);
27 }
28
29 private Object init(SimpleJavaNode node, Object data) {
30 stack.push(count);
31 count = new Integer (0);
32
33 node.childrenAccept(this, data);
34
35 if (count.intValue() > 1) {
36 addViolation(data, node);
37 }
38 count = (Integer ) stack.pop();
39
40 return data;
41 }
42
43 public Object visit(ASTVariableDeclarator node, Object data) {
44 if (count.intValue() > 1) {
45 return super.visit(node, data);
46 }
47 SimpleNode type = (SimpleNode) ((SimpleNode) node.jjtGetParent()).getFirstChildOfType(ASTType.class);
48 if (type != null) {
49 SimpleNode reftypeNode = (SimpleNode) type.jjtGetChild(0);
50 if (reftypeNode instanceof ASTReferenceType) {
51 SimpleNode classOrIntType = (SimpleNode) reftypeNode.jjtGetChild(0);
52 if (classOrIntType instanceof ASTClassOrInterfaceType && "Logger".equals(classOrIntType.getImage())) {
53 count = new Integer (count.intValue()+1);
54 }
55 }
56 }
57
58 return super.visit(node, data);
59 }
60
61 }
62 |
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