Coverage report

  %line %branch
ca.spaz.util.Loader
0% 
0% 

 1   
 package ca.spaz.util;
 2   
 
 3   
 import java.io.*;
 4   
 import java.util.zip.*;
 5   
 
 6   
 import javax.swing.ImageIcon;
 7   
 
 8   
 /**
 9   
  * A special class for loading classes from an jar file.
 10   
  *
 11   
  * @author Aaron Davidson
 12   
  */
 13   
 public final class Loader extends ClassLoader {
 14   
    private ZipFile archive;
 15   
 
 16  0 
    public Loader(File file) {
 17   
       try {
 18  0 
          archive = new ZipFile(file);
 19  0 
       } catch (Exception e) {
 20  0 
          e.printStackTrace();
 21  0 
       }
 22  0 
    }
 23   
 
 24   
    /**
 25   
     * Create a new instance of a class in this jar file.
 26   
     * Must have a basic constructor with no arguments.
 27   
     *
 28   
     * @param name the class name to instantiate
 29   
     *
 30   
     * @return an Object created from the given class
 31   
     */
 32   
    public Object newInstance(String name) {
 33   
       try {
 34  0 
          Class c = this.loadClass(name, true);
 35  0 
          return c.newInstance();
 36  0 
       } catch (Exception e) {
 37  0 
          e.printStackTrace();
 38   
       }
 39  0 
       return null;
 40   
    }
 41   
 
 42   
    /**
 43   
     * Load a class by name.
 44   
     * @see java.lang.ClassLoader#loadClass()
 45   
     */
 46   
    protected Class loadClass(String name, boolean resolve)
 47   
                            throws ClassNotFoundException {
 48  0 
       Class c = findLoadedClass(name);
 49  0 
       if (c == null) {
 50   
          try {
 51  0 
             c = findSystemClass(name);
 52  0 
          } catch (Exception e) {}
 53   
       }
 54  0 
       if (c == null) {
 55   
          try {
 56  0 
             byte data[] = loadClassData(name);
 57  0 
             if (data != null) {
 58  0 
                c = defineClass(name, data, 0, data.length);
 59   
             }
 60  0 
             if (c == null) {
 61  0 
                throw new ClassNotFoundException(name);
 62   
             }
 63  0 
          } catch (IOException e) {
 64  0 
             throw new ClassNotFoundException("Error reading class: " + name);
 65  0 
          }
 66   
       }
 67  0 
       if (resolve) {
 68  0 
          resolveClass(c);
 69   
       }
 70  0 
       return c;
 71   
    }
 72   
 
 73   
    private byte[] loadClassData(String filename) throws IOException {
 74  0 
       if (archive == null) return class="keyword">null;
 75  0 
       filename = filename.replaceAll("\\.", "/");
 76  0 
       return loadResource(filename + ".class");
 77   
    }
 78   
 
 79   
    private byte[] loadResource(String name) {
 80   
       try {
 81  0 
          ZipEntry ze = archive.getEntry(name);
 82  0 
          if (ze == null) {
 83  0 
             return null;
 84   
          }
 85  0 
          InputStream in = archive.getInputStream(ze);
 86  0 
          int size = (class="keyword">int)ze.getSize();
 87  0 
          byte buff[] = new byte[size];
 88  0 
          BufferedInputStream bis = new BufferedInputStream(in);
 89  0 
          DataInputStream dis = new DataInputStream(bis);
 90   
 
 91  0 
          int n = 0;
 92   
          try {
 93   
             while (true) {
 94  0 
                buff[n++] = (byte)dis.readByte();
 95  0 
             }
 96  0 
          } catch (EOFException eof) {}
 97  0 
          n--;
 98  0 
          dis.close();
 99  0 
          return buff;
 100  0 
       } catch (Exception e) {
 101  0 
          e.printStackTrace();
 102   
       }
 103  0 
       return null;
 104   
    }
 105   
 
 106   
    public ImageIcon loadImageIcon(String name) {
 107  0 
       byte buff[] = loadResource(name);
 108  0 
       if (buff != null) {
 109  0 
          return new ImageIcon(buff);
 110   
       } else {
 111  0 
          return null;
 112   
       }
 113   
    }
 114   
 
 115   
 }

This report is generated by jcoverage, Maven and Maven JCoverage Plugin.