Examples of br.gov.frameworkdemoiselle.management.NotificationManager

Package br.gov.frameworkdemoiselle.management

Examples of br.gov.frameworkdemoiselle.management.NotificationManager

br.gov.frameworkdemoiselle.management.NotificationManager

Central type to manage sending notifications to management clients. This interface allows applications to send management notifications without knowledge of the technology used to send those notifications.

To obtain an instance of the {@link NotificationManager} simply inject it inyour code using {@link Inject} or the {@link Beans#getReference(Class beanType)} method. The {@link NotificationManager}is {@link ApplicationScoped}, so you can inject it as many times as needed and still have only one instance per application.

Implementators of management protocols must observe the {@link ManagementNotificationEvent} event (using the {@link Observes} annotation), this waythey will receive an event containing the original notification and can translate this notification to a specific protocol. Optionaly, the implementator can use qualifiers like the {@link Generic} and {@link AttributeChange} qualifiersto filter what king of notifications they will handle. One example of an implementator is the demoiselle-jmx extension.
@author SERPRO

          }


          method.invoke(delegate, new Object[] { newValue });


          // Manda uma notificação de mudança de atributo
          NotificationManager notificationManager = Beans.getReference(NotificationManager.class);
          Class<? extends Object> attributeType = newValue != null ? newValue.getClass() : null;


          AttributeChangeNotification notification = new AttributeChangeNotification(bundle.getString(
              "management-notification-attribute-changed", propertyName, managedType.getType()
                  .getCanonicalName()), propertyName, attributeType, oldValue, newValue);
          notificationManager.sendNotification(notification);


        } catch (ConstraintViolationException ce) {
          throw ce;
        } catch (Exception e) {
          throw new ManagedInvokationException(bundle.getString("management-invoke-error", method.getName()), e);

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          }


          method.invoke(delegate, new Object[] { newValue });


          // Manda uma notificação de mudança de atributo
          NotificationManager notificationManager = Beans.getReference(NotificationManager.class);
          Class<? extends Object> attributeType = newValue != null ? newValue.getClass() : null;


          AttributeChangeNotification notification = new AttributeChangeNotification(bundle.getString(
              "management-notification-attribute-changed", propertyName, managedType.getType()
                  .getCanonicalName()), propertyName, attributeType, oldValue, newValue);
          notificationManager.sendNotification(notification);


        } catch (DemoiselleException de) {
          throw de;
        } catch (Exception e) {
          throw new DemoiselleException(bundle.getString("management-invoke-error", method.getName()), e);

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          }


          method.invoke(delegate, new Object[] { newValue });


          // Manda uma notificação de mudança de atributo
          NotificationManager notificationManager = Beans.getReference(NotificationManager.class);
          Class<? extends Object> attributeType = newValue != null ? newValue.getClass() : null;


          Notification notification = new DefaultNotification( new AttributeChangeMessage(
              bundle.getString("management-notification-attribute-changed", propertyName, managedType.getType().getCanonicalName())
              , propertyName
              , attributeType
              , oldValue
              , newValue) );
          notificationManager.sendNotification(notification);


        } catch (ConstraintViolationException ce) {
          throw ce;
        } catch (Exception e) {
          throw new ManagedInvokationException(bundle.getString("management-invoke-error", method.getName()), e);

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  @Test
  public void sendMessage() {
    JMXConfig config = Beans.getReference(JMXConfig.class);


    // Este será o lado cliente. Este manager é usado para enviar notificações a partir do código da aplicação
    NotificationManager notificationManager = Beans.getReference(NotificationManager.class);


    // Obtém o servidor MBean onde anexaremos um listener para a notificação
    MBeanServer server = ManagementFactory.getPlatformMBeanServer();


    // Aqui obtemos o MBean de notificações já registrado pelo bootstrap
    StringBuffer notificationMBeanName = new StringBuffer()
        .append(config.getNotificationDomain() != null ? config.getNotificationDomain()
            : "br.gov.frameworkdemoiselle.jmx").append(":name=").append(config.getNotificationMBeanName());


    ObjectName name = null;
    try {
      name = new ObjectName(notificationMBeanName.toString());
    } catch (MalformedObjectNameException e) {
      Assert.fail();
    }


    // StringBuffer vazio
    StringBuffer notificationBuffer = new StringBuffer();


    // Este notification listener será chamado quando o Demoiselle enviar a notificação e vai colocar
    // a mensagem enviada em "notificationBuffer"
    NotificationListener listener = new TestNotificationListener(notificationBuffer);


    try {
      // Anexa o listener no servidor MBean
      server.addNotificationListener(name, listener, null, null);
    } catch (InstanceNotFoundException e) {
      Assert.fail();
    }


    // Manda a notificação pelo Demoiselle
    DefaultNotification n = new DefaultNotification("Notification test successful");
    notificationManager.sendNotification(n);


    // Se o componente funcionou, o Demoiselle propagou a notificação para o servidor MBean e o listener preencheu
    // o StringBuffer com nossa mensagem.
    Assert.assertEquals("Notification test successful", notificationBuffer.toString());

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    JMXConfig config = Beans.getReference(JMXConfig.class);


    // Obtém o servidor MBean onde anexaremos um listener para a notificação
    MBeanServer server = ManagementFactory.getPlatformMBeanServer();


    NotificationManager notificationManager = Beans.getReference(NotificationManager.class);
    MBeanManager mBeanManager = Beans.getReference(MBeanManager.class);


    // Aqui obtemos o MBean de notificações já registrado pelo bootstrap
    StringBuffer notificationMBeanName = new StringBuffer()
        .append(config.getNotificationDomain() != null ? config.getNotificationDomain()
            : "br.gov.frameworkdemoiselle.jmx").append(":name=").append(config.getNotificationMBeanName());
    ObjectInstance instance = mBeanManager.findMBeanInstance(notificationMBeanName.toString());


    // StringBuffer vazio
    StringBuffer notificationBuffer = new StringBuffer();


    // Este notification listener será chamado quando o Demoiselle enviar a notificação e vai colocar
    // a mensagem enviada em "notificationBuffer"
    NotificationListener listener = new TestNotificationListener(notificationBuffer);


    try {
      // Anexa o listener no servidor MBean
      server.addNotificationListener(instance.getObjectName(), listener, null, null);
    } catch (InstanceNotFoundException e) {
      Assert.fail();
    }


    // Manda a notificação pelo Demoiselle
    Notification notification = new DefaultNotification( new AttributeChangeMessage("Attribute Changed", "name", String.class, "Demoiselle 1", "Demoiselle 2") );
    notificationManager.sendNotification(notification);


    // Se o componente funcionou, o Demoiselle propagou a notificação para o servidor MBean e o listener preencheu
    // o StringBuffer com nossa mensagem.
    Assert.assertEquals("Attribute Changed: name = Demoiselle 2", notificationBuffer.toString());

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Related Classes of br.gov.frameworkdemoiselle.management.NotificationManager

br.gov.frameworkdemoiselle.internal.implementation.Management

br.gov.frameworkdemoiselle.internal.management.Management

management.tests.notification.NotificationBroadcasterTest

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