[jboss-cvs] jboss-seam/src/ioc/org/jboss/seam/ioc/microcontainer ...

[Ales Justin]

  User: alesj   
  Date: 07/03/05 19:17:14

  Added:       src/ioc/org/jboss/seam/ioc/microcontainer     
                        JMXNotificationComponentMBean.java
                        ControllerNotificationComponent.java
                        JMXNotificationComponent.java
  Removed:     src/ioc/org/jboss/seam/ioc/microcontainer     
                        ControllerBridgeComponent.java
                        ControllerBridgeComponentMBean.java
  Log:
  Notification component abstraction.
  
  Revision  Changes    Path
  1.1      date: 2007/03/06 00:17:14;  author: alesj;  state: Exp;jboss-seam/src/ioc/org/jboss/seam/ioc/microcontainer/JMXNotificationComponentMBean.java
  
  Index: JMXNotificationComponentMBean.java
  ===================================================================
  /*
  * JBoss, Home of Professional Open Source
  * Copyright 2006, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * This software is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this software; if not, write to the Free
  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
  */
  package org.jboss.seam.ioc.microcontainer;
  
  public interface JMXNotificationComponentMBean
  {
      void destroy();
  }
  
  
  
  1.1      date: 2007/03/06 00:17:14;  author: alesj;  state: Exp;jboss-seam/src/ioc/org/jboss/seam/ioc/microcontainer/ControllerNotificationComponent.java
  
  Index: ControllerNotificationComponent.java
  ===================================================================
  /*
  * JBoss, Home of Professional Open Source
  * Copyright 2006, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * This software is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this software; if not, write to the Free
  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
  */
  package org.jboss.seam.ioc.microcontainer;
  
  import java.io.Serializable;
  
  import org.jboss.seam.Component;
  import org.jboss.seam.ScopeType;
  import org.jboss.seam.annotations.Create;
  import org.jboss.seam.annotations.Destroy;
  import org.jboss.seam.annotations.Logger;
  import org.jboss.seam.annotations.Scope;
  import org.jboss.seam.log.Log;
  
  /**
   * Notifies Seam components in current underlying Microcontainer Controller.
   * Meaning that ServletContext is available to register MC beans as Seam components
   * and MC beans can lookup Seam components.
   *
   * @author <a href="mailto:ales.justin at jboss.com">Ales Justin</a>
   */
  @Scope(ScopeType.APPLICATION)
  public abstract class ControllerNotificationComponent implements Serializable
  {
      /** The serialVersionUID */
      private static final long serialVersionUID = 1L;
  
      @Logger
      protected Log log;
  
      @Create
      public void create(Component component) throws Throwable
      {
          if (log.isDebugEnabled())
          {
              log.debug("Creating notification MC component ...");
          }
          try
          {
              notifyController(component);
          }
          catch (Throwable t)
          {
              throw new IllegalArgumentException("Exception installing ControllerNotificationComponent: " + t);
          }
      }
  
      /**
       * Creates notification to the underlying controller
       *
       * @param component this component instance
       * @throws Throwable throw throwable if unable to notify underlying controller
       */
      protected abstract void notifyController(Component component) throws Throwable;
  
      /**
       * Remove 'work' with creating notification
       *
       * @throws Throwable exception during notification cleanup
       */
      protected abstract void clearNotification() throws Throwable;
  
      @Destroy
      public void destroy()
      {
          try
          {
              clearNotification();
              if (log.isDebugEnabled())
              {
                  log.debug("Notification MC component destroyed ...");
              }
          }
          catch (Throwable t)
          {
              log.warn("Exception while clearing previous notification: " + t);
          }
      }
  
  }
  
  
  
  1.1      date: 2007/03/06 00:17:14;  author: alesj;  state: Exp;jboss-seam/src/ioc/org/jboss/seam/ioc/microcontainer/JMXNotificationComponent.java
  
  Index: JMXNotificationComponent.java
  ===================================================================
  /*
  * JBoss, Home of Professional Open Source
  * Copyright 2006, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * This software is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this software; if not, write to the Free
  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
  */
  package org.jboss.seam.ioc.microcontainer;
  
  import java.io.Serializable;
  import javax.management.MBeanServer;
  import javax.management.ObjectName;
  
  import org.jboss.mx.util.MBeanProxyExt;
  import org.jboss.mx.util.MBeanServerLocator;
  import org.jboss.seam.Component;
  import static org.jboss.seam.InterceptionType.NEVER;
  import org.jboss.seam.annotations.Install;
  import org.jboss.seam.annotations.Intercept;
  import org.jboss.seam.annotations.Startup;
  import org.jboss.system.ServiceControllerMBean;
  
  /**
   * Notifies Seam components in current underlying Microcontainer Controller.
   * It adds new MBean into the underlying MBeanServer.
   * MC components need to depend on the actual ObjectName.
   *
   * @author <a href="mailto:ales.justin at jboss.com">Ales Justin</a>
   */
  @Intercept(NEVER)
  @Install(false)
  @Startup
  public class JMXNotificationComponent extends ControllerNotificationComponent implements JMXNotificationComponentMBean, Serializable
  {
      /**
       * The serialVersionUID
       */
      private static final long serialVersionUID = 1L;
  
      private ObjectName objectName;
  
      protected ObjectName createObjectName(Component component) throws Exception
      {
          return new ObjectName("seam:name=" + getClass().getSimpleName() + "." + component.getName());
      }
  
      protected void notifyController(Component component) throws Throwable
      {
          objectName = createObjectName(component);
          handleJMXRegistration(true);
      }
  
      protected void clearNotification() throws Throwable
      {
          handleJMXRegistration(false);
          objectName = null;
      }
  
      protected void handleJMXRegistration(boolean register) throws Exception
      {
          MBeanServer server = MBeanServerLocator.locateJBoss();
          if (server == null)
              throw new IllegalArgumentException("Not running in JBoss app. server [currently only supporting]");
          ServiceControllerMBean serviceController = (ServiceControllerMBean)MBeanProxyExt.create(ServiceControllerMBean.class, ServiceControllerMBean.OBJECT_NAME);
          if (register)
          {
              server.registerMBean(this, objectName);
              // we want it to be installed
              serviceController.start(objectName);
          }
          else
          {
              // destroy it
              serviceController.destroy(objectName);
              serviceController.remove(objectName);
              server.unregisterMBean(objectName);
          }
      }
  
  }