Examples of com.sun.enterprise.loader.EJBClassLoader

com.sun.enterprise.loader.EJBClassLoader
Class loader used by the ejbs of an application or stand alone module. This class loader also keeps cache of not found classes and resources. @author Nazrul Islam @author Kenneth Saks @author Sivakumar Thyagarajan @since JDK 1.4

     */
    public Application getDescriptor(
        String moduleID, ClassLoader parentClassLoader) 
            throws ConfigException {


        ClassLoader cl = new EJBClassLoader(parentClassLoader);
        String[] classPaths = (String[]) EJBClassPathUtils.getModuleClasspath(
                                moduleID, null, this).toArray(new String[0]);


        if (classPaths != null) {
            int classPathSize    = classPaths.length;

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    try {
      //System RARs are placed in classpath and hence would be handled 
      //by the parent classloader 
      if(!ResourcesUtil.createInstance().belongToSystemRar(rarName)) {
        File file= new File(moduleDir);
        EJBClassLoader cl= new EJBClassLoader(parent);
        cl.appendURL(file.toURI().toURL());
        classLoaderChain.add(cl);
        rarModuleClassLoaders.put(rarName, cl);
      }
    } catch (MalformedURLException ex) {
      _logger.log(

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   * list
   * 
   * @param moduleName the connector module that needs to be removed.
   */
  public void removeResourceAdapter(String moduleName) {
    EJBClassLoader classLoaderToRemove=
    (EJBClassLoader) rarModuleClassLoaders.get(moduleName);
    if (classLoaderToRemove != null) {
      classLoaderChain.remove(classLoaderToRemove);
      rarModuleClassLoaders.remove(moduleName);
      classLoaderToRemove = null;

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    }
          
    //Going through the connector module classloader chain to find
    // class and return the first match.
    for (Iterator iter= classLoaderChain.iterator(); iter.hasNext();) {
      EJBClassLoader ccl= (EJBClassLoader) iter.next();
      try {
        clz= ccl.loadClass(name);
        if (clz != null){
          if(resolve) {
            resolveClass(clz);
          }
          return clz;

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     */
    
    public String getClasspath(){
            StringBuffer strBuf = new StringBuffer();
            for (int i = 0; i < classLoaderChain.size(); i++) {
                    EJBClassLoader ecl= (EJBClassLoader) classLoaderChain.get(i);
                    String eclClasspath = ecl.getClasspath();
                    if ( eclClasspath != null) {
                            if (i > 0) strBuf.append(File.pathSeparator);
                            strBuf.append(eclClasspath);
                    }
            }

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    /**
     * Returns the classloader for the module
     * @return ClassLoader
     */
    public ClassLoader getModuleClassLoader() {
        return new EJBClassLoader();
    }

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     * @return ClassLoader
     * @throws IOException
     */
    protected ClassLoader createClassLoader()
            throws IOException {
        EJBClassLoader ejbClassLoader = new EJBClassLoader(webd.getClassLoader());
        ejbClassLoader.appendURL(jspOutDir);
        return ejbClassLoader;
    }

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    private ClassLoader createClassLoader(AbstractArchive archive, URL[] persistenceURLs)
        throws IOException {
        List<String> paths = getClassPaths(archive);
        ClassLoader parent = Thread.currentThread().getContextClassLoader();
        EJBClassLoader loader = new EJBClassLoader(parent);


        final int LIST_SZ = paths.size();
        for (int i=0; i<LIST_SZ; i++) {
            String path = paths.get(i);
            loader.appendURL(new File(path));
        }
        
        if (_logger.isLoggable(Level.FINE)) {
            for (int i = 0; i < paths.size(); i++) {
                _logger.fine("Added path to classloader ==> " + paths.get(i));
            }
        }
        
        for (URL url : persistenceURLs) {
            loader.appendURL(url);
            _logger.fine("Added path to classloader ==> " + url);
        }


        return loader;
    }

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            /*
             *Use the list of class paths already set up on the EJBClassLoader.
             *Then for each element in the class path, write a part of the policy 
             *file granting the privs specified in the selected template to the code path.
             */
            EJBClassLoader loader = (EJBClassLoader) getClassLoader();
            for (URL classPathElement : loader.getURLs()) {
                /*
                 *Convert the URL into a proper codebase expression suitable for
                 *a grant clause in the policy file.
                 */
                String codeBase = Util.URLtoCodeBase(classPathElement);

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     *                                   class loader
     */
    public static EJBClassLoader getClassLoader(List paths, ClassLoader parent,
            File other) throws IOException {


        EJBClassLoader ejbCl  = null;


        if (parent != null) {
            ejbCl  = new EJBClassLoader(parent);
        } else {
            ejbCl  = new EJBClassLoader();
        }


        final int LIST_SZ = paths.size();
        for (int i=0; i<LIST_SZ; i++) {
            String path = (String) paths.get(i);
            ejbCl.appendURL(new File(path));
        }


        if (other != null) {
            ejbCl.appendURL(other);
        }


        return ejbCl;
    }

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