Examples of java.util.jar.JarFile

java.util.jar.JarFile
The JarFile class is used to read the contents of a jar file from any file that can be opened with java.io.RandomAccessFile. It extends the class java.util.zip.ZipFile with support for reading an optional Manifest entry. The Manifest can be used to specify meta-information about the jar file and its entries.
Unless otherwise noted, passing a null argument to a constructor or method in this class will cause a {@link NullPointerException} to bethrown. @author David Connelly @version 1.67, 04/07/06 @see Manifest @see java.util.zip.ZipFile @see java.util.jar.JarEntry @since 1.2

     */
    public static String[] getClassNamesForJarFile(String jarFileName)
    {
        try
        {
            JarFile jar = new JarFile(jarFileName);
            return getClassNamesForJarFile(jar);
        }
        catch (IOException ioe)
        {
            JPOXLogger.GENERAL.warn("Error opening the jar file " + jarFileName + " : " + ioe.getMessage());

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    public static String[] getClassNamesForJarFile(URL jarFileURL)
    {
        File jarFile = new File(jarFileURL.getFile()); // TODO Check for errors
        try
        {
            JarFile jar = new JarFile(jarFile);
            return getClassNamesForJarFile(jar);
        }
        catch (IOException ioe)
        {
            JPOXLogger.GENERAL.warn("Error opening the jar file " + jarFileURL.getFile() + " : " + ioe.getMessage());

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     */
    public static String[] getPackageJdoFilesForJarFile(String jarFileName)
    {
        try
        {
            JarFile jar = new JarFile(jarFileName);
            return getFileNamesWithSuffixForJarFile(jar, "package.jdo");
        }
        catch (IOException ioe)
        {
            JPOXLogger.GENERAL.warn("Error opening the jar file " + jarFileName + " : " + ioe.getMessage());

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    public static String[] getPackageJdoFilesForJarFile(URL jarFileURL)
    {
        File jarFile = new File(jarFileURL.getFile()); // TODO Check for errors
        try
        {
            JarFile jar = new JarFile(jarFile);
            return getFileNamesWithSuffixForJarFile(jar, "package.jdo");
        }
        catch (IOException ioe)
        {
            JPOXLogger.GENERAL.warn("Error opening the jar file " + jarFileURL.getFile() + " : " + ioe.getMessage());

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                    {
                        // remove "file:" from path, so we can use in File constructor
                        jarPath = jarPath.substring(5);
                    }
                    File jarFile = new File(jarPath);                
                    mf = new JarFile(jarFile).getManifest();
                    if (mf == null)
                    {
                        return null;
                    }
                    return registerBundle(mf, jarFile.toURI().toURL());
                }
            }            
            else if (manifest.getProtocol().equals("rar") || manifest.getProtocol().equals("war"))
            {
                // protocol formats:
                //     rar:<rar-path>!<jar-path>!<manifest-file>, war:<war-path>!<jar-path>!<manifest-file>
                String path = StringUtils.getDecodedStringFromURLString(manifest.toExternalForm());
                int index = path.indexOf(JAR_SEPARATOR);
                String rarPath = path.substring(4, index);
                File file = new File(rarPath);
                URL rarUrl = file.toURI().toURL();
                
                String jarPath = path.substring(index+1, path.indexOf(JAR_SEPARATOR,index+1));
                JarFile rarFile = new JarFile(file);
                mf = new JarInputStream(rarFile.getInputStream(rarFile.getEntry(jarPath))).getManifest();
                if (mf == null)
                {
                    return null;
                }
                return registerBundle(mf, rarUrl);

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  private JarFile _jar;


  public JarLoader(File path) throws IOException
  {
    _jar = new JarFile(path);
  }

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            }
            else if (protocol.equalsIgnoreCase("jar") ||
                protocol.equalsIgnoreCase("zip") ||
                protocol.equalsIgnoreCase("wsjar")){
              
                JarFile jar = ((JarURLConnection)url.openConnection()).getJarFile();
                Enumeration<JarEntry> entries = jar.entries();
                while(entries.hasMoreElements()){
                    JarEntry entry = entries.nextElement();
                    String name = entry.getName();
                    if (name.startsWith("/")){
                        name = name.substring(1);

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    public boolean loadPlugin(URL jarURL) {
      boolean b_loadedPlugin = false;
      try {
        LogBuffer.println("Plugin Jar " + jarURL);
        JarURLConnection conn = (JarURLConnection)jarURL.openConnection();
        JarFile jarFile = conn.getJarFile();
        ArrayList al_classnames = getClassDeclarations(jarFile);
        for (int j = 0; j < al_classnames.size(); j++) {
          Class thisClass = getClass();
          URLClassLoader urlcl = new URLClassLoader(
              new URL[] { jarURL }, thisClass.getClassLoader());

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  public ListDirs(final String uri) throws IOException, URISyntaxException {
    this.uri = uri;
    if(uri.startsWith("jar:")) {
      isJar = true;
      JarFileObject = new JarFile(uri.substring(9, uri.indexOf('!')));
      pathInJar = uri.substring(uri.indexOf('!') + 2);
    } else {
      FileObject = new File(new URI(uri));
    }
  }

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    return fList;
  }
  
  private void executeCheck() throws Exception {
    
    JarFile jar;
    Enumeration content;
    JarEntry entry;
    String classFile;
    long lDate;
    long size;
    
    StringTokenizer st;
    SimpleDateFormat sdf;
    String firstFile;
    String firstDate;
    String firstSize;
    int gap;
    int duplicates = 0;
    
    File file = new File(this.source);
    
    // alle zu durchsuchenden jar- und zip-Archive ermitteln
    String[] list = this.archiveFilter(file.list());
    
    if ( list.length == 0 ) {
      this.logln("\n no jar/zip archives found");
      return;
    }
    
    Hashtable inventory = new Hashtable();
    
    try {
      
      int i = 0;
      // alle Archive durchgehen
      for (i=0; i<list.length; i++) {
        
        jar = new JarFile(this.source + list[i]);
        
        content = jar.entries();
        
        // alle Klassen eines Archivs durchgehen
        while ( content.hasMoreElements() ) {
          
          entry = (JarEntry)content.nextElement();

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