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From cos...@apache.org
Subject cvs commit: jakarta-tomcat-connectors/coyote/src/java/org/apache/coyote BaseHook.java
Date Fri, 10 Jan 2003 22:36:44 GMT
costin      2003/01/10 14:36:43

  Added:       coyote/src/java/org/apache/coyote BaseHook.java
  Log:
  Added a base implementation of ActionHook - with some small additions :-)
  
  First, there is a getNext/setNext to allow multiple hooks to be chained.
  Both recursive and iterative will be supported - you can call next directly or
  just return it ( still need to tune this - only recursive works now )
  
  In addition, the hook implements MBeanRegistration ( again: we did vote on
  JMX dependency ). Tomcat3.3 may be a problem ( since it's using the same code),
  but if someone wants to use the new connector he can also add jmx in the
  path. If anyone has a problem with that - please let me know, I can hack
  some conditional compilation, but I would like to keep it simple.
  
  I'll change the 2 hook implementations to extend this after it settles down.
  
  Feel free to make changes - or ask for changes or just say -1.
  
  Revision  Changes    Path
  1.1                  jakarta-tomcat-connectors/coyote/src/java/org/apache/coyote/BaseHook.java
  
  Index: BaseHook.java
  ===================================================================
  /*
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights 
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer. 
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:  
   *       "This product includes software developed by the 
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written 
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   * [Additional notices, if required by prior licensing conditions]
   *
   */ 
  package org.apache.coyote;
  
  import javax.management.MBeanRegistration;
  import javax.management.ObjectName;
  import javax.management.MBeanServer;
  
  
  /**
   * Action hook.
   *
   * @author Remy Maucherat
   * @author Costin Manolache
   */
  public class BaseHook implements ActionHook, MBeanRegistration {
      protected BaseHook next;
  
      /**
       * Send an action to the connector.
       * Both recursive and iterative invocation is possible - the
       * hook may call itself the next hook ( like catalina ) or the
       * controller may call the next.
       * 
       * @param param Action parameter
       * @return  A hook that can be executed next.
       */
      public BaseHook action(int code, Object param) {
          if( next==null ) return next;
          return next.action( code, param );
      };
  
      /** Backward compat
       *
       * @param actionCode
       * @param param
       */
      public void action( ActionCode actionCode, Object param) {
         action( actionCode.getCode(), param );
      }
  
      public void setNextHook(BaseHook next) {
          this.next=next;
      }
  
      public BaseHook getNextHook() {
          return next;
      }
  
      // -------------------- Mbean registration  --------------------
  
      protected String domain;
      protected ObjectName oname;
      protected MBeanServer mserver;
  
      public ObjectName getObjectName() {
          return oname;
      }
  
      public String getDomain() {
          return domain;
      }
  
      public ObjectName preRegister(MBeanServer server,
                                    ObjectName name) throws Exception {
          oname=name;
          mserver=server;
          domain=name.getDomain();
          return name;
      }
  
      public void postRegister(Boolean registrationDone) {
      }
  
      public void preDeregister() throws Exception {
      }
  
      public void postDeregister() {
      }
  
  
  }
  
  
  

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