Clover coverage report - PMD - 3.7
Coverage timestamp: Wed May 31 2006 09:25:59 EDT
file stats: LOC: 44   Methods: 3
NCLOC: 35   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
UnusedPrivateFieldRule.java 100% 100% 100% 100%
coverage
 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.keySet().iterator(); i.hasNext();) {
 20  25 VariableNameDeclaration decl = (VariableNameDeclaration) i.next();
 21  25 if (!decl.getAccessNodeParent().isPrivate() || isOK(decl.getImage())) {
 22  4 continue;
 23    }
 24  21 if (!actuallyUsed((List) vars.get(decl))) {
 25  10 addViolation(data, decl.getNode(), decl.getImage());
 26    }
 27    }
 28  28 return super.visit(node, data);
 29    }
 30   
 31  21 private boolean actuallyUsed(List usages) {
 32  21 for (Iterator j = usages.iterator(); j.hasNext();) {
 33  18 NameOccurrence nameOccurrence = (NameOccurrence) j.next();
 34  18 if (!nameOccurrence.isOnLeftHandSide()) {
 35  11 return true;
 36    }
 37    }
 38  10 return false;
 39    }
 40   
 41  22 private boolean isOK(String image) {
 42  22 return image.equals("serialVersionUID") || image.equals("serialPersistentFields") || image.equals("IDENT");
 43    }
 44    }