Clover coverage report - Ant Coverage
Coverage timestamp: Tue Apr 8 2003 20:43:55 EST
file stats: LOC: 128   Methods: 2
NCLOC: 38   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
JarFileIterator.java 0% 0% 0% 0%
 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.ByteArrayOutputStream;
 57   
 import java.io.IOException;
 58   
 import java.io.InputStream;
 59   
 import java.util.zip.ZipEntry;
 60   
 import java.util.zip.ZipInputStream;
 61   
 
 62   
 /**
 63   
  * A class file iterator which iterates through the contents of a Java jar
 64   
  * file.
 65   
  *
 66   
  * @author Conor MacNeill
 67   
  */
 68   
 public class JarFileIterator implements ClassFileIterator {
 69   
     /** The jar stream from the jar file being iterated over*/
 70   
     private ZipInputStream jarStream;
 71   
 
 72   
     /**
 73   
      * Construct a iterartor over a jar stream
 74   
      *
 75   
      * @param stream the basic input stream from which the Jar is recived
 76   
      * @exception IOException if the jar stream connot be created
 77   
      */
 78  0
     public JarFileIterator(InputStream stream) throws IOException {
 79  0
         super();
 80   
 
 81  0
         jarStream = new ZipInputStream(stream);
 82   
     }
 83   
 
 84   
     /**
 85   
      * Get the next ClassFile object from the jar
 86   
      *
 87   
      * @return a ClassFile object describing the class from the jar
 88   
      */
 89  0
     public ClassFile getNextClassFile() {
 90  0
         ZipEntry jarEntry;
 91  0
         ClassFile nextElement = null;
 92   
 
 93  0
         try {
 94  0
             jarEntry = jarStream.getNextEntry();
 95   
 
 96  0
             while (nextElement == null && jarEntry != null) {
 97  0
                 String entryName = jarEntry.getName();
 98   
 
 99  0
                 if (!jarEntry.isDirectory() && entryName.endsWith(".class")) {
 100   
 
 101   
                     // create a data input stream from the jar input stream
 102  0
                     ClassFile javaClass = new ClassFile();
 103   
 
 104  0
                     javaClass.read(jarStream);
 105   
 
 106  0
                     nextElement = javaClass;
 107   
                 } else {
 108   
 
 109  0
                     jarEntry = jarStream.getNextEntry();
 110   
                 }
 111   
             }
 112   
         } catch (IOException e) {
 113  0
             String message = e.getMessage();
 114  0
             String text = e.getClass().getName();
 115   
 
 116  0
             if (message != null) {
 117  0
                 text += ": " + message;
 118   
             }
 119   
 
 120  0
             throw new RuntimeException("Problem reading JAR file: " + text);
 121   
         }
 122   
 
 123  0
         return nextElement;
 124   
     }
 125   
 
 126   
 }
 127   
 
 128