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Posted to slide-dev@jakarta.apache.org by re...@apache.org on 2001/11/12 05:52:59 UTC

cvs commit: jakarta-slide/src/wrappers/jmx SlideJMX.java mbeans-descriptors.xml MBeanUtils.java

remm        01/11/11 20:52:59

  Modified:    src/wrappers/catalina SlideServerListener.java
               src/wrappers/jmx mbeans-descriptors.xml
  Added:       src/wrappers/jmx SlideJMX.java
  Removed:     src/wrappers/jmx MBeanUtils.java
  Log:
  - Rename the MBeanUtils class.
  - Change a bit the API.
  - Fix some limitiations in the createMBean method (the algorithm will look at the superclass
    to try to find an appropriate model bean).
  - Add a few attributes and operations to the MBean descriptor file.
  
  Revision  Changes    Path
  1.7       +20 -9     jakarta-slide/src/wrappers/catalina/SlideServerListener.java
  
  Index: SlideServerListener.java
  ===================================================================
  RCS file: /home/cvs/jakarta-slide/src/wrappers/catalina/SlideServerListener.java,v
  retrieving revision 1.6
  retrieving revision 1.7
  diff -u -r1.6 -r1.7
  --- SlideServerListener.java	2001/11/11 20:11:30	1.6
  +++ SlideServerListener.java	2001/11/12 04:52:59	1.7
  @@ -1,7 +1,7 @@
   /*
  - * $Header: /home/cvs/jakarta-slide/src/wrappers/catalina/SlideServerListener.java,v 1.6 2001/11/11 20:11:30 remm Exp $
  - * $Revision: 1.6 $
  - * $Date: 2001/11/11 20:11:30 $
  + * $Header: /home/cvs/jakarta-slide/src/wrappers/catalina/SlideServerListener.java,v 1.7 2001/11/12 04:52:59 remm Exp $
  + * $Revision: 1.7 $
  + * $Date: 2001/11/12 04:52:59 $
    *
    * ====================================================================
    *
  @@ -99,14 +99,14 @@
   import org.apache.slide.util.conf.Populate;
   import org.apache.slide.util.logger.SimpleLogger;
   
  -import wrappers.jmx.MBeanUtils;
  +import wrappers.jmx.SlideJMX;
   
   
   /**
    * Server listener responsible for setting up the Slide domain.
    *
    * @author Remy Maucherat
  - * @version $Revision: 1.6 $ $Date: 2001/11/11 20:11:30 $
  + * @version $Revision: 1.7 $ $Date: 2001/11/12 04:52:59 $
    */
   public class SlideServerListener
       implements LifecycleListener {
  @@ -150,14 +150,14 @@
                   logger.setLoggerLevel(6);
                   domain.setLogger(logger);
   
  +                slideJMXWrapper = new SlideJMX();
  +                slideJMXWrapper.setDomain(domain);
  +
                   System.out.println("Starting Slide");
                   initializeDomain();
                   domain.start();
                   System.out.println("Slide started");
   
  -                // Register the domain as a MBean
  -                MBeanUtils.createMBean(domain);
  -
               } else if (event.getType() == Lifecycle.STOP_EVENT) {
   
                   System.out.println("Stopping Slide");
  @@ -165,7 +165,7 @@
                   System.out.println("Slide stopped");
                   
                   // Unregister the domain as a MBean
  -                MBeanUtils.destroyMBean(domain);
  +                //MBeanUtils.destroyMBean(domain);
   
               }
   
  @@ -209,6 +209,12 @@
       protected int logLevel = 6;
   
   
  +    /**
  +     * JMX wrapper.
  +     */
  +    protected SlideJMX slideJMXWrapper = null;
  +
  +
       // ------------------------------------------------------------- Properties
   
   
  @@ -355,6 +361,11 @@
   
           domain.addNamespace(name, nsLogger, definition, 
                               configuration, baseData);
  +        try {
  +            slideJMXWrapper.addNamespace(name);
  +        } catch (Exception e) {
  +            e.printStackTrace();
  +        }
   
       }
   
  
  
  
  1.2       +99 -2     jakarta-slide/src/wrappers/jmx/mbeans-descriptors.xml
  
  Index: mbeans-descriptors.xml
  ===================================================================
  RCS file: /home/cvs/jakarta-slide/src/wrappers/jmx/mbeans-descriptors.xml,v
  retrieving revision 1.1
  retrieving revision 1.2
  diff -u -r1.1 -r1.2
  --- mbeans-descriptors.xml	2001/11/11 20:21:10	1.1
  +++ mbeans-descriptors.xml	2001/11/12 04:52:59	1.2
  @@ -6,21 +6,96 @@
   <!--
        Descriptions of JMX MBeans for Catalina
   
  -     $Id: mbeans-descriptors.xml,v 1.1 2001/11/11 20:21:10 remm Exp $
  +     $Id: mbeans-descriptors.xml,v 1.2 2001/11/12 04:52:59 remm Exp $
    -->
   
   <mbeans-descriptors>
   
   
  -  <mbean         name="EmbeddedDomain"
  +  <mbean         name="Domain"
               className="wrappers.jmx.DomainMBean"
             description="Slide Domain"
                  domain="Slide"
                   group="Core"
                    type="org.apache.slide.common.EmbeddedDomain">
   
  +    <attribute   name="name"
  +          description="The name of the domain"
  +                 type="java.lang.String"/>
  +
  +    <attribute   name="defaultNamespace"
  +          description="The name of the default namespace for the domain"
  +                 type="java.lang.String"/>
  +
  +    <attribute   name="logger"
  +          description="The logger for the domain"
  +                 type="org.apache.slide.util.logger.Logger"/>
  +
       <constructor name="EmbeddedDomain"/>
   
  +    <operation   name="getNamespace"
  +          description="Return a namespace"
  +               impact="INFO"
  +           returnType="org.apache.slide.common.Namespace">
  +      <parameter name="name"
  +          description="Name of the namespace"
  +                 type="java.lang.String"/>
  +    </operation>
  +
  +    <operation   name="getNamespaceToken"
  +          description="Return a namespace token which gives access to the specified namespace"
  +               impact="INFO"
  +           returnType="org.apache.slide.common.NamespaceAccessToken">
  +      <parameter name="name"
  +          description="Name of the namespace to be accessed"
  +                 type="java.lang.String"/>
  +    </operation>
  +
  +    <operation   name="enumerateNamespaces"
  +          description="Return the list of namespaces in this domain"
  +               impact="INFO"
  +           returnType="java.util.Enumeration"/>
  +
  +    <operation   name="addNamespace"
  +          description="Add a namespace"
  +               impact="ACTION"
  +           returnType="org.apache.slide.common.Namespace">
  +      <parameter name="name"
  +          description="Name of the namespace to be added"
  +                 type="java.lang.String"/>
  +      <parameter name="logger"
  +          description="Namespace logger"
  +                 type="org.apache.slide.util.logger.Logger"/>
  +      <parameter name="definition"
  +          description="Namespace definition"
  +                 type="org.apache.slide.util.conf.Configuration"/>
  +      <parameter name="configuration"
  +          description="Namespace configuration"
  +                 type="org.apache.slide.util.conf.Configuration"/>
  +      <parameter name="baseData"
  +          description="Namespace bootstrap data"
  +                 type="org.apache.slide.util.conf.Configuration"/>
  +    </operation>
  +
  +    <operation   name="removeNamespace"
  +          description="Remove a namespace"
  +               impact="ACTION"
  +           returnType="org.apache.slide.common.Namespace">
  +      <parameter name="name"
  +          description="Name of the namespace to be removed"
  +                 type="java.lang.String"/>
  +    </operation>
  +
  +    <operation   name="start"
  +          description="Start domain"
  +               impact="ACTION"
  +           returnType="void"/>
  +
  +    <operation   name="stop"
  +          description="Stop domain"
  +               impact="ACTION"
  +           returnType="void"/>
  +
     </mbean>
   
   
  @@ -30,6 +105,28 @@
                  domain="Slide"
                   group="Core"
                    type="org.apache.slide.common.Namespace">
  +
  +    <attribute   name="name"
  +          description="The name of the namespace"
  +                 type="java.lang.String"/>
  +
  +    <attribute   name="config"
  +          description="Namespace configuration"
  +                 type="org.apache.slide.common.NamespaceConfig"
  +            writeable="false"/>
  +
  +    <attribute   name="logger"
  +          description="The logger for the namespace"
  +                 type="org.apache.slide.util.logger.Logger"/>
  +
  +    <attribute   name="transactionManager"
  +          description="The transaction manager of the namespace"
  +                 type="javax.transaction.TransactionManager"
  +            writeable="false"/>
  +
  +    <attribute   name="applicationLogger"
  +          description="The application logger for the namespace"
  +                 type="org.apache.slide.util.logger.Logger"/>
   
       <constructor name="Namespace"/>
   
  
  
  
  1.1                  jakarta-slide/src/wrappers/jmx/SlideJMX.java
  
  Index: SlideJMX.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-slide/src/wrappers/jmx/SlideJMX.java,v 1.1 2001/11/12 04:52:59 remm Exp $
   * $Revision: 1.1 $
   * $Date: 2001/11/12 04:52:59 $
   *
   * ====================================================================
   *
   * 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 wrappers.jmx;
  
  
  import java.io.InputStream;
  import java.net.URL;
  import javax.management.InstanceAlreadyExistsException;
  import javax.management.MalformedObjectNameException;
  import javax.management.MBeanException;
  import javax.management.MBeanServer;
  import javax.management.MBeanServerFactory;
  import javax.management.NotCompliantMBeanException;
  import javax.management.ObjectName;
  import javax.management.OperationsException;
  import javax.management.modelmbean.InvalidTargetObjectTypeException;
  import javax.management.modelmbean.ModelMBean;
  
  import org.apache.commons.modeler.ManagedBean;
  import org.apache.commons.modeler.Registry;
  
  import org.apache.slide.common.EmbeddedDomain;
  import org.apache.slide.common.Namespace;
  import org.apache.slide.common.NamespaceAccessToken;
  import org.apache.slide.common.NamespaceConfig;
  
  
  /**
   * Public utility methods in support of the server side MBeans implementation.
   *
   * @author Remy Maucherat
   * @author Craig R. McClanahan
   * @author Amy Roh
   * @version $Revision: 1.1 $ $Date: 2001/11/12 04:52:59 $
   */
  
  public class SlideJMX {
  
  
      // ----------------------------------------------------------- Constructors
  
  
      /**
       * Construct Slide JMX wrapper.
       */
      public SlideJMX() {
      }
  
  
      // ------------------------------------------------------- Static Variables
  
  
      /**
       * The set of exceptions to the normal rules used by
       * <code>createManagedBean()</code>.  The first element of each pair
       * is a class name, and the second element is the managed bean name.
       */
      private static String exceptions[][] = {
          { "className", "finalName" },
          { "org.apache.slide.common.EmbeddedDomain", "Domain" }
      };
  
  
      /**
       * The configuration information registry for our managed beans.
       */
      private static Registry registry = createRegistry();
  
  
      /**
       * The <code>MBeanServer</code> for this application.
       */
      private static MBeanServer mserver = createServer();
  
  
      /**
       * Associated Slide domain.
       */
      private EmbeddedDomain domain = null;
  
  
      // --------------------------------------------------------- Public Methods
  
  
      /**
       * Generate MBeans for the specified domain.
       */
      public void setDomain(EmbeddedDomain domain)
          throws Exception {
  
          this.domain = domain;
          createMBean(domain);
  
      }
  
  
      /**
       * Generate MBeans for the specified namespace.
       */
      public void addNamespace(String name)
          throws Exception {
  
          Namespace namespace = domain.getNamespace(name);
          if (namespace != null) {
              createMBean(namespace);
              createMBean(namespace.getConfig());
          }
  
      }
  
  
      // --------------------------------------------------------- Static Methods
  
  
      /**
       * Create and return the name of the <code>ManagedBean</code> that
       * corresponds to this Catalina component.
       *
       * @param component The component for which to create a name
       */
      public static String createManagedName(Object component) {
  
          return createManagedName(component.getClass());
  
      }
  
  
      /**
       * Create and return the name of the <code>ManagedBean</code> that
       * corresponds to this Catalina component.
       *
       * @param component The component class name for which to create a name
       */
      public static String createManagedName(Class clazz) {
  
          // Deal with exceptions to the standard rule
          String className = clazz.getName();
          for (int i = 0; i < exceptions.length; i++) {
              if (className.equals(exceptions[i][0]))
                  return (exceptions[i][1]);
          }
  
          // Perform the standard transformation
          int period = className.lastIndexOf('.');
          if (period >= 0)
              className = className.substring(period + 1);
          return (className);
  
      }
  
  
      /**
       * Find the managed bean associated with this object.
       * 
       * @param object The object to be managed
       */
      public static ManagedBean findManagedBean(Object object)
          throws Exception {
  
          ManagedBean result = null;
          String mname = null;
          Class clazz = object.getClass();
  
          while ((clazz != null) && (result == null)) {
              mname = createManagedName(clazz);
              result = registry.findManagedBean(mname);
              if (result == null) {
                  Class[] interfaces = clazz.getInterfaces();
                  for (int i = 0; (i < interfaces.length) 
                           && (result == null); i++) {
                      mname = createManagedName(interfaces[i]);
                      result = registry.findManagedBean(mname);
                  }
              }
              if (result == null)
                  clazz = clazz.getSuperclass();
          }
  
          return result;
  
      }
  
  
      /**
       * Create, register, and return an MBean for this object.
       *
       * @param object The object to be managed
       *
       * @exception Exception if an MBean cannot be created or registered
       */
      public static ModelMBean createMBean(Object object)
          throws Exception {
  
          String mname = createManagedName(object);
          ManagedBean managed = registry.findManagedBean(mname);
          if (managed == null)
              managed = findManagedBean(object);
          if (managed == null)
              return null;
          String domain = managed.getDomain();
          if (domain == null)
              domain = mserver.getDefaultDomain();
          ModelMBean mbean = managed.createMBean(object);
          ObjectName oname = createObjectName(domain, mname, object);
          mserver.registerMBean(mbean, oname);
          return (mbean);
  
      }
  
  
      /**
       * Create an <code>ObjectName</code> for this object.
       *
       * @param domain Domain in which this name is to be created
       * @param mname Managed name of the object
       * @param object Object to be named
       *
       * @exception MalformedObjectNameException if a name cannot be created
       */
      public static ObjectName createObjectName
          (String domain, String mname, Object object)
          throws MalformedObjectNameException {
  
          return new ObjectName(domain + ":type=" + mname + ",name=" 
                                + object.toString());
  
      }
  
  
      /**
       * Create and configure (if necessary) and return the registry of
       * managed object descriptions.
       */
      public synchronized static Registry createRegistry() {
  
          if (registry == null) {
              try {
                  URL url = MBeanUtils.class.getResource
                      ("/wrappers/jmx/mbeans-descriptors.xml");
                  InputStream stream = url.openStream();
                  Registry.loadRegistry(stream);
                  stream.close();
                  registry = Registry.getRegistry();
              } catch (Throwable t) {
                  t.printStackTrace(System.out);
              }
          }
          return (registry);
  
      }
  
  
      /**
       * Create and configure (if necessary) and return the
       * <code>MBeanServer</code> with which we will be
       * registering our <code>ModelMBean</code> implementations.
       */
      public synchronized static MBeanServer createServer() {
  
          if (mserver == null) {
              try {
                  mserver = Registry.getServer();
              } catch (Throwable t) {
                  t.printStackTrace(System.out);
              }
          }
          return (mserver);
  
      }
  
  
      /**
       * Deregister the MBean for the specified object.
       *
       * @param object The objectr to be managed
       *
       * @exception Exception if an MBean cannot be deregistered
       */
      public static void destroyMBean(Object object)
          throws Exception {
  
          String mname = createManagedName(object);
          ManagedBean managed = registry.findManagedBean(mname);
          String domain = managed.getDomain();
          if (domain == null)
              domain = mserver.getDefaultDomain();
          ObjectName oname = createObjectName(domain, mname, object);
          mserver.unregisterMBean(oname);
  
      }
  
  
  }
  
  
  

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