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From ju...@apache.org
Subject cvs commit: incubator-geronimo/modules/clustering/src/java/org/apache/geronimo/clustering NamedMBeanImpl.java
Date Sun, 04 Jan 2004 15:21:37 GMT
jules       2004/01/04 07:21:37

  Added:       modules/clustering/src/java/org/apache/geronimo/clustering
                        NamedMBeanImpl.java
  Log:
  commit missing change from last set
  further abstract out naming protocol for clustering MBeans
  
  Revision  Changes    Path
  1.1                  incubator-geronimo/modules/clustering/src/java/org/apache/geronimo/clustering/NamedMBeanImpl.java
  
  Index: NamedMBeanImpl.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 "Apache" and "Apache Software Foundation" and
   *    "Apache Geronimo" 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",
   *    "Apache Geronimo", 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.geronimo.clustering;
  
  import javax.management.MBeanServer;
  import javax.management.ObjectName;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.apache.geronimo.kernel.service.GeronimoAttributeInfo;
  import org.apache.geronimo.kernel.service.GeronimoMBeanContext;
  import org.apache.geronimo.kernel.service.GeronimoMBeanInfo;
  import org.apache.geronimo.kernel.service.GeronimoMBeanTarget;
  
  /**
   * A base class containing fnality useful to Named MBeans of the
   * Clustering module.
   *
   * @version $Revision: 1.1 $ $Date: 2004/01/04 15:21:37 $
   */
  public abstract class
    NamedMBeanImpl
    extends MBeanImpl
  {
    protected Log _log=LogFactory.getLog(NamedMBeanImpl.class);
  
    /**
     * Returns the Node's unique identifier within it's Cluster.
     *
     * @return a <code>String</code> value
     */
    public String getName() {return _objectName.getKeyProperty("name");}
  
    //----------------------------------------
    // GeronimoMBeanTarget
    //----------------------------------------
  
    public boolean
      canStart()
    {
      if (!super.canStart()) return false;
  
      if (_objectName.getKeyProperty("name")==null)
      {
        _log.warn("MBean name must contain a 'name' property");
        return false;
      }
  
      return true;
    }
  
    public static GeronimoMBeanInfo
      getGeronimoMBeanInfo()
    {
      GeronimoMBeanInfo mbeanInfo=MBeanImpl.getGeronimoMBeanInfo();
      // set target class in concrete subclasses...
      mbeanInfo.addAttributeInfo(new GeronimoAttributeInfo("Name", true, false, "this Object's
name"));
      return mbeanInfo;
    }
  }
  
  
  

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