Clover coverage report - Ant Coverage
Coverage timestamp: Tue Apr 8 2003 20:43:55 EST
file stats: LOC: 170   Methods: 3
NCLOC: 79   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
AncestorAnalyzer.java 0% 0% 0% 0%
 1   
 /*
 2   
  * The Apache Software License, Version 1.1
 3   
  *
 4   
  * Copyright (c) 2002 The Apache Software Foundation.  All rights
 5   
  * reserved.
 6   
  *
 7   
  * Redistribution and use in source and binary forms, with or without
 8   
  * modification, are permitted provided that the following conditions
 9   
  * are met:
 10   
  *
 11   
  * 1. Redistributions of source code must retain the above copyright
 12   
  *    notice, this list of conditions and the following disclaimer.
 13   
  *
 14   
  * 2. Redistributions in binary form must reproduce the above copyright
 15   
  *    notice, this list of conditions and the following disclaimer in
 16   
  *    the documentation and/or other materials provided with the
 17   
  *    distribution.
 18   
  *
 19   
  * 3. The end-user documentation included with the redistribution, if
 20   
  *    any, must include the following acknowlegement:
 21   
  *       "This product includes software developed by the
 22   
  *        Apache Software Foundation (http://www.apache.org/)."
 23   
  *    Alternately, this acknowlegement may appear in the software itself,
 24   
  *    if and wherever such third-party acknowlegements normally appear.
 25   
  *
 26   
  * 4. The names "Ant" and "Apache Software
 27   
  *    Foundation" must not be used to endorse or promote products derived
 28   
  *    from this software without prior written permission. For written
 29   
  *    permission, please contact apache@apache.org.
 30   
  *
 31   
  * 5. Products derived from this software may not be called "Apache"
 32   
  *    nor may "Apache" appear in their names without prior written
 33   
  *    permission of the Apache Group.
 34   
  *
 35   
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 36   
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 37   
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 38   
  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 39   
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 40   
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 41   
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 42   
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 43   
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 44   
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 45   
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 46   
  * SUCH DAMAGE.
 47   
  * ====================================================================
 48   
  *
 49   
  * This software consists of voluntary contributions made by many
 50   
  * individuals on behalf of the Apache Software Foundation.  For more
 51   
  * information on the Apache Software Foundation, please see
 52   
  * <http://www.apache.org/>.
 53   
  */
 54   
 package org.apache.tools.ant.util.depend.bcel;
 55   
 import java.io.File;
 56   
 import java.io.IOException;
 57   
 import java.util.Enumeration;
 58   
 import java.util.Hashtable;
 59   
 import java.util.Vector;
 60   
 import org.apache.bcel.classfile.ClassParser;
 61   
 import org.apache.bcel.classfile.JavaClass;
 62   
 import org.apache.tools.ant.util.depend.AbstractAnalyzer;
 63   
 
 64   
 /**
 65   
  * A dependency analyzer which returns superclass and superinterface
 66   
  * dependencies.
 67   
  *
 68   
  * @author Conor MacNeill
 69   
  */
 70   
 public class AncestorAnalyzer extends AbstractAnalyzer {
 71   
     
 72  0
     public AncestorAnalyzer() {
 73   
         // force BCEL classes to load now
 74  0
         try {
 75  0
             new ClassParser("force");
 76   
         } catch (IOException e) {
 77   
             // ignore
 78   
         }
 79   
     }
 80   
     
 81   
     /**
 82   
      * Determine the dependencies of the configured root classes.
 83   
      *
 84   
      * @param files a vector to be populated with the files which contain
 85   
      *      the dependency classes
 86   
      * @param classes a vector to be populated with the names of the
 87   
      *      depencency classes.
 88   
      */
 89  0
     protected void determineDependencies(Vector files, Vector classes) {
 90   
         // we get the root classes and build up a set of
 91   
         // classes upon which they depend
 92  0
         Hashtable dependencies = new Hashtable();
 93  0
         Hashtable containers = new Hashtable();
 94  0
         Hashtable toAnalyze = new Hashtable();
 95  0
         Hashtable nextAnalyze = new Hashtable();
 96  0
         for (Enumeration e = getRootClasses(); e.hasMoreElements();) {
 97  0
             String classname = (String) e.nextElement();
 98  0
             toAnalyze.put(classname, classname);
 99   
         }
 100   
 
 101  0
         int count = 0;
 102  0
         int maxCount = isClosureRequired() ? MAX_LOOPS : 2;
 103  0
         while (toAnalyze.size() != 0 && count++ < maxCount) {
 104  0
             nextAnalyze.clear();
 105  0
             for (Enumeration e = toAnalyze.keys(); e.hasMoreElements();) {
 106  0
                 String classname = (String) e.nextElement();
 107  0
                 dependencies.put(classname, classname);
 108  0
                 try {
 109  0
                     File container = getClassContainer(classname);
 110  0
                     if (container == null) {
 111  0
                         continue;
 112   
                     }
 113  0
                     containers.put(container, container);
 114   
 
 115  0
                     ClassParser parser = null;
 116  0
                     if (container.getName().endsWith(".class")) {
 117  0
                         parser = new ClassParser(container.getPath());
 118   
                     } else {
 119  0
                         parser = new ClassParser(container.getPath(),
 120   
                             classname.replace('.', '/') + ".class");
 121   
                     }
 122   
 
 123  0
                     JavaClass javaClass = parser.parse();
 124  0
                     String[] interfaces = javaClass.getInterfaceNames();
 125  0
                     for (int i = 0; i < interfaces.length; ++i) {
 126  0
                         String interfaceName = interfaces[i];
 127  0
                         if (!dependencies.containsKey(interfaceName)) {
 128  0
                             nextAnalyze.put(interfaceName, interfaceName);
 129   
                         }
 130   
                     }
 131   
 
 132  0
                     if (javaClass.isClass()) {
 133  0
                         String superClass = javaClass.getSuperclassName();
 134  0
                         if (!dependencies.containsKey(superClass)) {
 135  0
                             nextAnalyze.put(superClass, superClass);
 136   
                         }
 137   
                     }
 138   
                 } catch (IOException ioe) {
 139   
                     // ignore
 140   
                 }
 141   
             }
 142   
 
 143  0
             Hashtable temp = toAnalyze;
 144  0
             toAnalyze = nextAnalyze;
 145  0
             nextAnalyze = temp;
 146   
         }
 147   
 
 148  0
         files.removeAllElements();
 149  0
         for (Enumeration e = containers.keys(); e.hasMoreElements();) {
 150  0
             files.addElement((File) e.nextElement());
 151   
         }
 152   
 
 153  0
         classes.removeAllElements();
 154  0
         for (Enumeration e = dependencies.keys(); e.hasMoreElements();) {
 155  0
             classes.addElement((String) e.nextElement());
 156   
         }
 157   
     }
 158   
 
 159   
     /**
 160   
      * Indicate if this analyzer can determine dependent files.
 161   
      *
 162   
      * @return true if the analyzer provides dependency file information.
 163   
      */
 164  0
     protected boolean supportsFileDependencies() {
 165  0
         return true;
 166   
     }
 167   
 
 168   
 }
 169   
 
 170