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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ClassDescriptorPacker.java | 100% | 100% | 100% | 100% |
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/*
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* Copyright (C) The MetaClass Group. All rights reserved.
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*
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* This software is published under the terms of the Spice
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* Software License version 1.1, a copy of which has been included
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* with this distribution in the LICENSE.txt file.
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*/
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package org.codehaus.metaclass.tools.packer;
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import java.util.ArrayList;
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import org.codehaus.metaclass.model.ClassDescriptor;
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import org.codehaus.metaclass.model.FeatureDescriptor;
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import org.codehaus.metaclass.model.FieldDescriptor;
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import org.codehaus.metaclass.model.MethodDescriptor;
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/**
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* Utility class to shrink ClassDescriptor by field and method
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* descriptors without any attributes. If keepEmptyMethods is
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* true the packer will retain any methods with no attributes.
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* This option is useful if you want to retain access to the names
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* of the parameters in methods and constructors.
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*
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* @author Peter Donald
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* @version $Revision: 1.2 $ $Date: 2003/11/27 08:09:54 $
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*/
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public class ClassDescriptorPacker |
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{ |
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/**
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* Flag indicating whether the compacter
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* should methods with no attributes.
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*/
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private final boolean m_keepEmptyMethods; |
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/**
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* Create packer.
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*
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* @param keepEmptyMethods flag to keep empty methods
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*/
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public ClassDescriptorPacker( final boolean keepEmptyMethods ) |
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{ |
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m_keepEmptyMethods = keepEmptyMethods; |
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} |
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public ClassDescriptor pack( final ClassDescriptor descriptor )
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{ |
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final FieldDescriptor[] fields = |
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packFields( descriptor.getFields() ); |
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final MethodDescriptor[] methods = |
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packMethods( descriptor.getMethods() ); |
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if( 0 == fields.length &&
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0 == methods.length && |
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isEmpty( descriptor ) ) |
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{ |
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return null; |
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} |
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else
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{ |
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return new ClassDescriptor( descriptor.getName(), |
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descriptor.getDeclaredAttributes(), |
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descriptor.getAttributes(), |
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fields, |
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methods ); |
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} |
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} |
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/**
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* Return the list of methods that have attributes.
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*
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* @param methods the complete set of methods
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* @return the list of methods that have attributes.
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*/
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MethodDescriptor[] packMethods( final MethodDescriptor[] methods ) |
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{ |
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if( m_keepEmptyMethods )
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{ |
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return methods;
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} |
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else
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{ |
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final ArrayList set = new ArrayList();
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for( int i = 0; i < methods.length; i++ ) |
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{ |
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final MethodDescriptor method = methods[ i ]; |
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if( !isEmpty( method ) )
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{ |
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set.add( method ); |
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} |
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} |
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return (MethodDescriptor[])set.
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toArray( new MethodDescriptor[ set.size() ] );
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} |
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} |
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/**
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* Return the list of fields that have attributes.
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*
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* @param fields the complete set of fields
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* @return the list of fields that have attributes.
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*/
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FieldDescriptor[] packFields( final FieldDescriptor[] fields ) |
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{ |
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final ArrayList set = new ArrayList();
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for( int i = 0; i < fields.length; i++ ) |
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{ |
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final FieldDescriptor field = fields[ i ]; |
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if( !isEmpty( field ) )
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{ |
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set.add( field ); |
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} |
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} |
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return (FieldDescriptor[])set.
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toArray( new FieldDescriptor[ set.size() ] );
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} |
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/**
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* Return true if feature has no attributes.
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*
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* @param descriptor the descriptor
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* @return true if feature has no attributes
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*/
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boolean isEmpty( final FeatureDescriptor descriptor )
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{ |
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return
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0 == descriptor.getAttributes().length && |
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0 == descriptor.getDeclaredAttributes().length; |
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} |
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} |
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