Examples of java.util.jar.JarFile$JarEntryIterator

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. If the verify flag is on when opening a signed jar file, the content of the file is verified against its signature embedded inside the file. Please note that the verification process does not include validating the signer's certificate. A caller should inspect the return value of {@link JarEntry#getCodeSigners()} to further determine if the signaturecan be trusted. @author David Connelly @see Manifest @see java.util.zip.ZipFile @see java.util.jar.JarEntry @since 1.2

      if (libDir.exists()) {
        // Second check for jar files
        File[] jarFiles = libDir.listFiles(jarFileFilter);
        for (File jarFile : jarFiles) {
          // check in all jars - don't know the name of the brasato jar
          JarFile jar;
          try {
            jar = new JarFile(jarFile);
            Enumeration<JarEntry> jarEntries = jar.entries();
            while (jarEntries.hasMoreElements()) {
              JarEntry jarEntry = jarEntries.nextElement();
              String jarEntryName = jarEntry.getName();
              // search for core util in jar
              if (jarEntryName.indexOf(I18N_DIRNAME + "/" + I18nModule.LOCAL_STRINGS_FILE_PREFIX) != -1) {

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   *          don't check or care
   * @return Set of language keys, can be empty but never null
   */
  public Set<String> sarchForAvailableLanguagesInJarFile(File jarFile, boolean checkForExecutables) {
    Set<String> foundLanguages = new TreeSet<String>();
    JarFile jar;
    try {
      jar = new JarFile(jarFile);
      Enumeration<JarEntry> jarEntries = jar.entries();
      while (jarEntries.hasMoreElements()) {
        JarEntry jarEntry = jarEntries.nextElement();
        String jarEntryName = jarEntry.getName();
        // check for executables
        if (checkForExecutables && (jarEntryName.endsWith("java") || jarEntryName.endsWith("class"))) { return new TreeSet<String>(); }
        // search for core util in jar
        if (jarEntryName.indexOf(I18nModule.getBrasatoFallbackBundle().replace(".", "/") + "/" + I18N_DIRNAME) != -1) {
          // don't add overlayLocales as selectable
          // availableLanguages
          if (jarEntryName.indexOf("__") == -1 && jarEntryName.indexOf(I18nModule.LOCAL_STRINGS_FILE_PREFIX) != -1) {
            String lang = jarEntryName.substring(jarEntryName.indexOf(I18nModule.LOCAL_STRINGS_FILE_PREFIX)
                + I18nModule.LOCAL_STRINGS_FILE_PREFIX.length(), jarEntryName.lastIndexOf("."));
            foundLanguages.add(lang);
            if (isLogDebugEnabled()) logDebug("Adding lang::" + lang + " from filename::" + jarEntryName + " in jar::" + jar.getName(),
                null);
          }
        }
      }
    } catch (IOException e) {

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   */
  public void copyLanguagesFromJar(File jarFile, Set<String> toCopyI18nKeys) {
    if (!I18nModule.isTransToolEnabled()) {
      throw new AssertException("Programming error - can only copy i18n files from a language pack to the source when in translation mode");
    }
    JarFile jar;
    try {
      jar = new JarFile(jarFile);
      Enumeration<JarEntry> jarEntries = jar.entries();
      while (jarEntries.hasMoreElements()) {
        JarEntry jarEntry = jarEntries.nextElement();
        String jarEntryName = jarEntry.getName();
        // Check if this entry is a language file
        for (String i18nKey : toCopyI18nKeys) {
          if (jarEntryName.endsWith(I18N_DIRNAME + "/" + I18nModule.LOCAL_STRINGS_FILE_PREFIX + i18nKey + I18nModule.LOCAL_STRINGS_FILE_POSTFIX)) {
            File targetBaseDir;
            // Special case: copy brasato files to brasato
            if (jarEntryName.startsWith(I18nModule.getBrasatoFallbackBundle().replace(".", "/"))) {
              if (i18nKey.equals("de") || i18nKey.equals("en")) {                
                targetBaseDir = new File(WebappHelper.getBrasatoSourcePath());                
              } else {
                targetBaseDir = I18nModule.getTransToolBrasatoLanguagesDir();                              
              }
            } else {
              if (i18nKey.equals("de") || i18nKey.equals("en")) {                
                targetBaseDir = new File(WebappHelper.getSourcePath());
              } else {
                targetBaseDir = I18nModule.getTransToolApplicationLanguagesDir();                            
              }
            }
            // Copy file
            File targetFile = new File(targetBaseDir, jarEntryName);
            targetFile.getParentFile().mkdirs();
            FileUtils.save(jar.getInputStream(jarEntry), targetFile);
             // Check that saved properties file is empty, if so remove it 
            Properties props = new Properties();
            props.load(new FileInputStream(targetFile));
            if (props.size() == 0) {
              targetFile.delete();

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    */ 
   static void generateJarSerialVersionUIDs(URL jar, TreeMap classVersionMap,
      ClassLoader cl, String pkgPrefix) throws IOException
   {
      String jarName = jar.getFile();
      JarFile jf = new JarFile(jarName);
      Enumeration entries = jf.entries();
      while( entries.hasMoreElements() )
      {
         JarEntry entry = (JarEntry) entries.nextElement();
         String name = entry.getName();
         if( name.endsWith(".class") && name.startsWith(pkgPrefix) )
         {
            name = name.substring(0, name.length() - 6);
            String classname = name.replace('/', '.');
            try
            {
               log.fine("Creating ClassVersionInfo for: "+classname);
               ClassVersionInfo cvi = new ClassVersionInfo(classname, cl);
               log.fine(cvi.toString());
               if( cvi.getSerialVersion() != 0 )
               {
                  ClassVersionInfo prevCVI = (ClassVersionInfo)
                     classVersionMap.put(classname, cvi);
                  if( prevCVI != null )
                  {
                     if( prevCVI.getSerialVersion() != cvi.getSerialVersion() )
                     {
                        log.severe("Found inconsistent classes, "
                           +prevCVI+" != "+cvi+", jar: "+jarName);
                     }
                  }
                  if( cvi.getHasExplicitSerialVersionUID() == false )
                  {
                     log.warning("No explicit serialVersionUID: "+cvi);
                  }
               }
            }
            catch(OutOfMemoryError e)
            {
               log.log(Level.SEVERE, "Check the MaxPermSize", e);
            }
            catch(Throwable e)
            {
               log.log(Level.FINE, "While loading: "+name, e);
            }
         }
      }
      jf.close();
   }

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        classPath = classPath.replace(c, '.');
        addHelpPageToList(toBeChechedkFilName, classPath);


      // 2) Check for files within jars
      } else if (file.getName().endsWith(".jar")) {
        JarFile jar;
        try {
          jar = new JarFile(file);
          Enumeration<JarEntry> jarEntries = jar.entries();
          // Check in all jars - maybe we have context help files in
          // jar resources
          while (jarEntries.hasMoreElements()) {
            JarEntry jarEntry = jarEntries.nextElement();
            String jarEntryName = jarEntry.getName();

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         if( file.renameTo(tmpFile) == false )
            throw new IOException("Failed to rename: "+file);


         try
         {
            this.jarFile = new JarFile(tmpFile);
         }
         catch(IOException e)
         {
            tmpFile.renameTo(file);
            throw new FileNotFoundException("Not a JarFile: "+file);

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              }
            }
          }
          else // JAR file.
          {
            JarFile jarFile = new JarFile(locationFile);
            for(
              Enumeration<JarEntry> entries = jarFile.entries();
              entries.hasMoreElements();
              )
            {
              String jarEntryPath = ((JarEntry)entries.nextElement()).getName();
              if(

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            if (path.length() > 4 && path.substring(path.length()-4).toLowerCase().equals(".jar"))
            {
                try
                {
                    JarFile jarFile = new JarFile(path);
                    JarEntry jarEntry = jarFile.getJarEntry(PLUGIN_CONFIG_RESOURCE);
                    if (jarEntry != null)
                    {
                        InputStream configStream = null;
                        try
                        {
                            configStream = jarFile.getInputStream(jarEntry);
                            configure(jarEntry.getName(), configStream);
                        }
                        finally
                        {
                            if (configStream != null)

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        // probably existing at first place of path
        IWorkspace workspace = ResourcesPlugin.getWorkspace();
        IPathVariableManager pathManager = workspace.getPathVariableManager();
        path = pathManager.resolvePath(path);


        JarFile jar = null;
        try {
            jar = new JarFile(path.toOSString());
        } catch (IOException e) {
            BytecodeOutlinePlugin.log(e, IStatus.ERROR);
            return null;
        }
        String fullClassName = getFullBytecodeName(classFile);
        if (fullClassName == null) {
            return null;
        }
        JarEntry jarEntry = jar.getJarEntry(fullClassName);
        if (jarEntry != null) {
            try {
                return jar.getInputStream(jarEntry);
            } catch (IOException e) {
                BytecodeOutlinePlugin.log(e, IStatus.ERROR);
            }
        }
        return null;

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     * @return The JarFile
     */
    public static JarFile getJarFileForFilename(String filename)
    throws IOException
    {
        return new JarFile(getDecodedStringFromURLString(filename));
    }

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