Clover coverage report - PMD - 3.9 Coverage timestamp: Tue Dec 19 2006 09:38:44 EST FRAMES NO FRAMES |
file stats: | LOC: | 45 |  | Methods: | 3
| NCLOC: | 36 |  | Classes: | 1
Source file | Conditionals | Statements | Methods | TOTAL
UnusedPrivateFieldRule.java | 100% | 100% | 100% | 100% |

1 |  | /**
2 |  | * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
3 |  | */
4 |  | package net.sourceforge.pmd.rules;
5 |  |
6 |  | import net.sourceforge.pmd.AbstractRule;
7 |  | import net.sourceforge.pmd.ast.ASTClassOrInterfaceDeclaration;
8 |  | import net.sourceforge.pmd.symboltable.NameOccurrence;
9 |  | import net.sourceforge.pmd.symboltable.VariableNameDeclaration;
10 |  |
11 |  | import java.util.Iterator;
12 |  | import java.util.List;
13 |  | import java.util.Map;
14 |  |
15 |  | public class UnusedPrivateFieldRule extends AbstractRule {
16 |  |
17 | 28 | public Object visit(ASTClassOrInterfaceDeclaration node, Object data) {
18 | 28 | Map vars = node.getScope().getVariableDeclarations();
19 | 28 | for (Iterator i = vars.entrySet().iterator(); i.hasNext();) {
20 | 25 | Map.Entry entry = (Map.Entry) i.next();
21 | 25 | VariableNameDeclaration decl = (VariableNameDeclaration) entry.getKey();
22 | 25 | if (!decl.getAccessNodeParent().isPrivate() || isOK(decl.getImage())) {
23 | 4 | continue;
24 |  | }
25 | 21 | if (!actuallyUsed((List) entry.getValue())) {
26 | 10 | addViolation(data, decl.getNode(), decl.getImage());
27 |  | }
28 |  | }
29 | 28 | return super.visit(node, data);
30 |  | }
31 |  |
32 | 21 | private boolean actuallyUsed(List usages) {
33 | 21 | for (Iterator j = usages.iterator(); j.hasNext();) {
34 | 18 | NameOccurrence nameOccurrence = (NameOccurrence) j.next();
35 | 18 | if (!nameOccurrence.isOnLeftHandSide()) {
36 | 11 | return true;
37 |  | }
38 |  | }
39 | 10 | return false;
40 |  | }
41 |  |
42 | 22 | private boolean isOK(String image) {
43 | 22 | return image.equals("serialVersionUID") || image.equals("serialPersistentFields") || image.equals("IDENT");
44 |  | }
45 |  | }