1   
    2   
    3   /*
    4    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
    5    * 
    6    * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
    7    * 
    8    * Portions Copyright Apache Software Foundation.
    9    * 
   10    * The contents of this file are subject to the terms of either the GNU
   11    * General Public License Version 2 only ("GPL") or the Common Development
   12    * and Distribution License("CDDL") (collectively, the "License").  You
   13    * may not use this file except in compliance with the License. You can obtain
   14    * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
   15    * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
   16    * language governing permissions and limitations under the License.
   17    * 
   18    * When distributing the software, include this License Header Notice in each
   19    * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
   20    * Sun designates this particular file as subject to the "Classpath" exception
   21    * as provided by Sun in the GPL Version 2 section of the License file that
   22    * accompanied this code.  If applicable, add the following below the License
   23    * Header, with the fields enclosed by brackets [] replaced by your own
   24    * identifying information: "Portions Copyrighted [year]
   25    * [name of copyright owner]"
   26    * 
   27    * Contributor(s):
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   29    * If you wish your version of this file to be governed by only the CDDL or
   30    * only the GPL Version 2, indicate your decision by adding "[Contributor]
   31    * elects to include this software in this distribution under the [CDDL or GPL
   32    * Version 2] license."  If you don't indicate a single choice of license, a
   33    * recipient has the option to distribute your version of this file under
   34    * either the CDDL, the GPL Version 2 or to extend the choice of license to
   35    * its licensees as provided above.  However, if you add GPL Version 2 code
   36    * and therefore, elected the GPL Version 2 license, then the option applies
   37    * only if the new code is made subject to such option by the copyright
   38    * holder.
   39    */
   40   
   41   package org.apache.tomcat.util.handler;
   42   
   43   import java.io;
   44   import java.net;
   45   import java.util;
   46   import org.apache.tomcat.util.IntrospectionUtils;
   47   
   48   /** Hooks support. Hooks implement a chain-of-command pattern, and
   49    * are commonly used in most web servers as a mechanism of extensibility.
   50    *
   51    * The HandlerManager class will provide support for registering and maintaining
   52    * a list of modules implementing each hook.
   53    *
   54    * Each hook will have a name and an id. Name-based operations are slower, it is
   55    * recomended you use them only in non-critical code. The name-id association is
   56    * handled by NoteManager.
   57    *
   58    *
   59    *  @todo Merging. It is possible to have different hooks on different contexts
   60    *        ( server, context, servlet ), we need to merge them.
   61    */
   62   public class HandlerManager {
   63       // hook name -> hook[]
   64       private Hashtable hookMap;
   65       private TcHandler hooks[][];
   66   
   67       public HandlerManager() {
   68       }
   69   
   70       /** Add a new handler.
   71        */
   72       public void addHandler( String name, TcHandler hook ) {
   73           
   74       }
   75   
   76       public TcHandler[] getHandlers( int hookId ) {
   77           return hooks[hookId];
   78       }
   79   
   80       public TcHandler[] getHandlers( String name ) {
   81           return getHandlers( 0 );
   82       }
   83   
   84       public Hashtable getHookMap() {
   85           return hookMap;
   86       }
   87   }