package org.codehaus.classworlds;
   
   /*
    * Copyright 2001-2010 Codehaus Foundation.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  /*
   * A compatibility wrapper for org.codehaus.plexus.classworlds.realm.ClassRealm
   * provided for legacy code
   *
   * @author Andrew Williams
   */
  
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.net.URL;
  import java.util.Enumeration;
  
  @Deprecated
  public class DefaultClassRealm implements ClassRealm {
      private ClassRealmAdapter adapter;
  
      public DefaultClassRealm(ClassWorld world, String id) {
          this(world, id, null);
      }
  
      public DefaultClassRealm(ClassWorld world, String id, ClassLoader foreignClassLoader) {
          this.adapter = ClassRealmAdapter.getInstance(new org.codehaus.plexus.classworlds.realm.ClassRealm(
                  ClassWorldReverseAdapter.getInstance(world), id, foreignClassLoader));
      }
  
      public URL[] getConstituents() {
          return adapter.getConstituents();
      }
  
      public ClassRealm getParent() {
          return adapter.getParentRealm();
      }
  
      public void setParent(ClassRealm parent) {
          adapter.setParent(parent);
      }
  
      public String getId() {
          return adapter.getId();
      }
  
      public ClassWorld getWorld() {
          return adapter.getWorld();
      }
  
      public void importFrom(String realmId, String packageName) throws NoSuchRealmException {
          adapter.importFrom(realmId, packageName);
      }
  
      public void addConstituent(URL constituent) {
          adapter.addConstituent(constituent);
      }
  
      /**
       *  Adds a byte[] class definition as a constituent for locating classes.
       *  Currently uses BytesURLStreamHandler to hold a reference of the byte[] in memory.
       *  This ensures we have a unifed URL resource model for all constituents.
       *  The code to cache to disk is commented out - maybe a property to choose which method?
       *
       *  @param constituent class name
       *  @param b the class definition as a byte[]
       *  @throws ClassNotFoundException when class couldn't be loaded
       */
      public void addConstituent(String constituent, byte[] b) throws ClassNotFoundException {
          try {
              File path, file;
              if (constituent.lastIndexOf('.') != -1) {
                  path = new File("byteclass/"
                          + constituent
                                  .substring(0, constituent.lastIndexOf('.') + 1)
                                  .replace('.', File.separatorChar));
  
                  file = new File(path, constituent.substring(constituent.lastIndexOf('.') + 1) + ".class");
              } else {
                  path = new File("byteclass/");
  
                  file = new File(path, constituent + ".class");
              }
  
              addConstituent(new URL(null, file.toURI().toURL().toExternalForm(), new BytesURLStreamHandler(b)));
         } catch (java.io.IOException e) {
             throw new ClassNotFoundException("Couldn't load byte stream.", e);
         }
     }
 
     public ClassRealm locateSourceRealm(String classname) {
         return adapter.locateSourceRealm(classname);
     }
 
     public ClassLoader getClassLoader() {
         return adapter.getClassLoader();
     }
 
     public ClassRealm createChildRealm(String id) throws DuplicateRealmException {
         return adapter.createChildRealm(id);
     }
 
     // ----------------------------------------------------------------------
     // ClassLoader API
     // ----------------------------------------------------------------------
 
     public Class loadClass(String name) throws ClassNotFoundException {
         return adapter.loadClass(name);
     }
 
     public URL getResource(String name) {
         return adapter.getResource(name);
     }
 
     public InputStream getResourceAsStream(String name) {
         return adapter.getResourceAsStream(name);
     }
 
     public Enumeration findResources(String name) throws IOException {
         return adapter.findResources(name);
     }
 
     public void display() {
         adapter.display();
     }
 }