cvs commit: avalon-excalibur/container/src/java/org/apache/excalibur/container/lifecycle/extensions InstrumentableCreator.java

[bl...@apache.org]

bloritsch    2003/03/07 09:23:54

  Added:       container/src/java/org/apache/excalibur/container/lifecycle/extensions
                        InstrumentableCreator.java
  Log:
  add standard extension for Instrumentable
  
  Revision  Changes    Path
  1.1                  avalon-excalibur/container/src/java/org/apache/excalibur/container/lifecycle/extensions/InstrumentableCreator.java
  
  Index: InstrumentableCreator.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2003 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 acknowledgment:
   *    "This product includes software developed by the
   *    Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software
   *    itself, if and wherever such third-party acknowledgments
   *    normally appear.
   *
   * 4. The names "D-Haven" 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 name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * 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/>.
   */
  package org.apache.excalibur.instrument;
  
  import org.apache.avalon.framework.context.Context;
  import org.apache.excalibur.container.lifecycle.Creator;
  
  /**
   * The InstrumentableCreator is used as a standard lifecycle
   * extension for containers that support it.
   */
  public class InstrumentableCreator implements Creator
  {
      private final InstrumentManager m_instrumentManager;
      private final boolean m_instrumentEnabled;
      
      public InstrumentableCreator(InstrumentManager instrumentManager)
      {
          m_instrumentManager = instrumentManager;
          m_instrumentEnabled = instrumentManager != null;
      }
      
      /**
       * Assign the instrumentables and InstrumentManageables
       */
      public void create(Object object, Context context) throws Exception
      {
          if( m_instrumentEnabled && object instanceof Instrumentable )
          {
              String instrumentableName = (String)context.get("component.name");
              final Instrumentable instrumentable = (Instrumentable)object;
              instrumentable.setInstrumentableName( instrumentableName );
  
              // Get the name from the instrumentable in case it was changed since being set above.
              m_instrumentManager.registerInstrumentable(
                  instrumentable, instrumentable.getInstrumentableName() );
  
          }
          
          if( m_instrumentEnabled && object instanceof InstrumentManageable )
          {
              ( (InstrumentManageable)object ).setInstrumentManager( m_instrumentManager );
          }
  
      }
      
      /**
       * Not used.
       */
      public void destroy(Object object, Context context)
      {}
  }
  
  
  

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