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The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2002 Sun * Microsystems, Inc. All Rights Reserved. */ package org.netbeans.modules.javacore.parser; import java.util.List; import java.lang.reflect.Modifier; import org.netbeans.jmi.javamodel.JavaClass; import org.netbeans.jmi.javamodel.ParameterizedType; import org.netbeans.modules.javacore.jmiimpl.javamodel.JavaClassImpl; /** * * @author Tomas Hurka */ class ClassInfoMeasure implements Measure { public static final ClassInfoMeasure INSTANCE = new ClassInfoMeasure(); private static final int TYPE_WEIGHT = 100; private static final int NAME_WEIGHT = 60; private static final int EXTENDS_WEIGHT = 10; private static final int IMPLEMENTS_WEIGHT = 10; private static final int MEMBERS_WEIGHT = 20; /** Creates a new instance of ClassMeasure */ private ClassInfoMeasure() { } /** Compares JavaClass to ASTree object. * @param refObject Must be JavaClass * @param asTree * @return distance */ public int getDistance(Object refObject, Object ast) { if (refObject instanceof ParameterizedType) refObject=((ParameterizedType)refObject).getDefinition(); if (ast instanceof ClassInfo) { JavaClassImpl refInfo = (JavaClassImpl) refObject; ClassInfo astInfo = (ClassInfo) ast; int result = 0; if (refInfo.isInterface() != Modifier.isInterface(astInfo.modifiers)) { result = TYPE_WEIGHT ; } result += StringMeasure.INSTANCE.getDistance(refInfo.getName(), astInfo.name) * NAME_WEIGHT; if (refInfo.isPersisted()) { result += ClassNameMeasure.INSTANCE.getDistance(refInfo.getSuperclassRef(), astInfo.superclass) * EXTENDS_WEIGHT; List ifcRefs = refInfo.getInterfaceRefs(); result += new ArrayMeasure(ClassNameMeasure.INSTANCE).getDistance(ifcRefs == null ? new Object[0] : ifcRefs.toArray(), astInfo.interfaces) * IMPLEMENTS_WEIGHT; String[] refMemberNames = InfoUtil.getElementNames(refInfo.getFeatures()); String[] astMemberNames = InfoUtil.getElementNames(astInfo.features); result += new ArrayMeasure(StringMeasure.INSTANCE).getDistance(refMemberNames, astMemberNames) * MEMBERS_WEIGHT; } result = result / 100; return result > INFINITE_DISTANCE ? INFINITE_DISTANCE : result; } else if (ast instanceof TypeParamRef) { if (((JavaClass) refObject).getName().equals(((TypeParamRef)ast).getName())) return 0; return INFINITE_DISTANCE; } return INFINITE_DISTANCE; } } |
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