Clover coverage report - Ant Coverage
Coverage timestamp: Tue Apr 8 2003 20:43:55 EST
file stats: LOC: 156   Methods: 3
NCLOC: 48   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
ClassFile.java 87.5% 90.9% 66.7% 87.9%
 1   
 /*
 2   
  * The Apache Software License, Version 1.1
 3   
  *
 4   
  * Copyright (c) 2000-2002 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.taskdefs.optional.depend;
 55   
 
 56   
 import java.io.DataInputStream;
 57   
 import java.io.IOException;
 58   
 import java.io.InputStream;
 59   
 import java.util.Vector;
 60   
 import org.apache.tools.ant.taskdefs.optional.depend.constantpool.ClassCPInfo;
 61   
 import org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPool;
 62   
 import org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPoolEntry;
 63   
 
 64   
 /**
 65   
  * A ClassFile object stores information about a Java class. The class may
 66   
  * be read from a DataInputStream.and written to a DataOutputStream. These
 67   
  * are usually streams from a Java class file or a class file component of a
 68   
  * Jar file.
 69   
  *
 70   
  * @author Conor MacNeill
 71   
  */
 72   
 public class ClassFile {
 73   
 
 74   
     /** The Magic Value that marks the start of a Java class file  */
 75   
     private static final int CLASS_MAGIC = 0xCAFEBABE;
 76   
 
 77   
     /** This class' constant pool.  */
 78   
     private ConstantPool constantPool;
 79   
 
 80   
     /** The class name for this class.  */
 81   
     private String className;
 82   
 
 83   
     /**
 84   
      * Read the class from a data stream. This method takes an InputStream
 85   
      * as input and parses the class from the stream. <p>
 86   
      *
 87   
      *
 88   
      *
 89   
      * @param stream an InputStream from which the class will be read
 90   
      * @exception IOException if there is a problem reading from the given
 91   
      *      stream.
 92   
      * @exception ClassFormatError if the class cannot be parsed correctly
 93   
      */
 94  27
     public void read(InputStream stream) throws IOException, ClassFormatError {
 95  27
         DataInputStream classStream = new DataInputStream(stream);
 96   
 
 97  27
         if (classStream.readInt() != CLASS_MAGIC) {
 98  0
             throw new ClassFormatError("No Magic Code Found " 
 99   
                 + "- probably not a Java class file.");
 100   
         }
 101   
 
 102   
         // right we have a good looking class file.
 103  27
         /* int minorVersion = */ classStream.readUnsignedShort();
 104  27
         /* int majorVersion = */ classStream.readUnsignedShort();
 105   
 
 106   
         // read the constant pool in and resolve it
 107  27
         constantPool = new ConstantPool();
 108   
 
 109  27
         constantPool.read(classStream);
 110  27
         constantPool.resolve();
 111   
 
 112  27
         /* int accessFlags = */ classStream.readUnsignedShort();
 113  27
         int thisClassIndex = classStream.readUnsignedShort();
 114  27
         /* int superClassIndex = */ classStream.readUnsignedShort();
 115  27
         ClassCPInfo classInfo 
 116   
             = (ClassCPInfo) constantPool.getEntry(thisClassIndex);
 117  27
         className  = classInfo.getClassName();
 118   
     }
 119   
 
 120   
 
 121   
     /**
 122   
      * Get the classes which this class references.
 123   
      *
 124   
      * @return a vector of class names which this class references
 125   
      */
 126  27
     public Vector getClassRefs() {
 127   
 
 128  27
         Vector classRefs = new Vector();
 129   
 
 130  27
         for (int i = 0; i < constantPool.size(); ++i) {
 131  449
             ConstantPoolEntry entry = constantPool.getEntry(i);
 132   
 
 133  449
             if (entry != null 
 134   
                 && entry.getTag() == ConstantPoolEntry.CONSTANT_CLASS) {
 135  82
                 ClassCPInfo classEntry = (ClassCPInfo) entry;
 136   
 
 137  82
                 if (!classEntry.getClassName().equals(className)) {
 138  55
                     classRefs.addElement(ClassFileUtils.convertSlashName(classEntry.getClassName()));
 139   
                 }
 140   
             }
 141   
         }
 142   
 
 143  27
         return classRefs;
 144   
     }
 145   
 
 146   
     /**
 147   
      * Get the class' fully qualified name in dot format.
 148   
      *
 149   
      * @return the class name in dot format (eg. java.lang.Object)
 150   
      */
 151  0
     public String getFullClassName() {
 152  0
         return ClassFileUtils.convertSlashName(className);
 153   
     }
 154   
 }
 155   
 
 156