/jboss-as-7.1.1.Final/messaging/src/main/java/org/jboss/as/messaging/jms/JMSQueueReadAttributeHandler.java
Java | 139 lines | 95 code | 16 blank | 28 comment | 24 complexity | b875dfc24bca7053ca944d4378167519 MD5 | raw file
Possible License(s): LGPL-2.1, Apache-2.0
- /*
- * JBoss, Home of Professional Open Source.
- * Copyright 2011, Red Hat, Inc., and individual contributors
- * as indicated by the @author tags. See the copyright.txt file 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.as.messaging.jms;
- import java.util.Arrays;
- import java.util.List;
- import org.hornetq.api.core.management.ResourceNames;
- import org.hornetq.api.jms.management.JMSQueueControl;
- import org.hornetq.core.server.HornetQServer;
- import org.jboss.as.controller.AbstractRuntimeOnlyHandler;
- import org.jboss.as.controller.OperationContext;
- import org.jboss.as.controller.OperationFailedException;
- import org.jboss.as.controller.PathAddress;
- import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
- import org.jboss.as.controller.operations.validation.ParametersValidator;
- import org.jboss.as.controller.operations.validation.StringLengthValidator;
- import org.jboss.as.controller.registry.AttributeAccess;
- import org.jboss.as.controller.registry.ManagementResourceRegistration;
- import org.jboss.as.messaging.MessagingServices;
- import org.jboss.dmr.ModelNode;
- import org.jboss.msc.service.ServiceController;
- import org.jboss.msc.service.ServiceName;
- import static org.jboss.as.messaging.CommonAttributes.CONSUMER_COUNT;
- import static org.jboss.as.messaging.CommonAttributes.DEAD_LETTER_ADDRESS;
- import static org.jboss.as.messaging.CommonAttributes.DELIVERING_COUNT;
- import static org.jboss.as.messaging.CommonAttributes.EXPIRY_ADDRESS;
- import static org.jboss.as.messaging.CommonAttributes.MESSAGES_ADDED;
- import static org.jboss.as.messaging.CommonAttributes.MESSAGE_COUNT;
- import static org.jboss.as.messaging.CommonAttributes.NAME;
- import static org.jboss.as.messaging.CommonAttributes.PAUSED;
- import static org.jboss.as.messaging.CommonAttributes.QUEUE_ADDRESS;
- import static org.jboss.as.messaging.CommonAttributes.SCHEDULED_COUNT;
- import static org.jboss.as.messaging.CommonAttributes.TEMPORARY;
- import static org.jboss.as.messaging.MessagingMessages.MESSAGES;
- /**
- * Implements the {@code read-attribute} operation for runtime attributes exposed by a HornetQ
- * {@link org.hornetq.api.jms.management.JMSQueueControl}.
- *
- * @author Brian Stansberry (c) 2011 Red Hat Inc.
- */
- public class JMSQueueReadAttributeHandler extends AbstractRuntimeOnlyHandler {
- public static final JMSQueueReadAttributeHandler INSTANCE = new JMSQueueReadAttributeHandler();
- public static final List<String> METRICS = Arrays.asList( MESSAGE_COUNT, SCHEDULED_COUNT, CONSUMER_COUNT, DELIVERING_COUNT, MESSAGES_ADDED );
- public static final List<String> READ_ATTRIBUTES = Arrays.asList( QUEUE_ADDRESS.getName(),
- EXPIRY_ADDRESS.getName(), DEAD_LETTER_ADDRESS.getName(), PAUSED, TEMPORARY );
- private ParametersValidator validator = new ParametersValidator();
- private JMSQueueReadAttributeHandler() {
- validator.registerValidator(NAME, new StringLengthValidator(1));
- }
- @Override
- public void executeRuntimeStep(OperationContext context, ModelNode operation) throws OperationFailedException {
- validator.validate(operation);
- final String attributeName = operation.require(ModelDescriptionConstants.NAME).asString();
- String queueName = PathAddress.pathAddress(operation.require(ModelDescriptionConstants.OP_ADDR)).getLastElement().getValue();
- final ServiceName hqServiceName = MessagingServices.getHornetQServiceName(PathAddress.pathAddress(operation.get(ModelDescriptionConstants.OP_ADDR)));
- ServiceController<?> hqService = context.getServiceRegistry(false).getService(hqServiceName);
- HornetQServer hqServer = HornetQServer.class.cast(hqService.getValue());
- JMSQueueControl control = JMSQueueControl.class.cast(hqServer.getManagementService().getResource(ResourceNames.JMS_QUEUE + queueName));
- if (MESSAGE_COUNT.equals(attributeName)) {
- try {
- context.getResult().set(control.getMessageCount());
- } catch (RuntimeException e) {
- throw e;
- } catch (Exception e) {
- throw new RuntimeException(e);
- }
- } else if (SCHEDULED_COUNT.equals(attributeName)) {
- context.getResult().set(control.getScheduledCount());
- } else if (CONSUMER_COUNT.equals(attributeName)) {
- context.getResult().set(control.getConsumerCount());
- } else if (DELIVERING_COUNT.equals(attributeName)) {
- context.getResult().set(control.getDeliveringCount());
- } else if (MESSAGES_ADDED.equals(attributeName)) {
- context.getResult().set(control.getMessagesAdded());
- } else if (QUEUE_ADDRESS.getName().equals(attributeName)) {
- context.getResult().set(control.getAddress());
- } else if (EXPIRY_ADDRESS.getName().equals(attributeName)) {
- context.getResult().set(control.getExpiryAddress());
- } else if (DEAD_LETTER_ADDRESS.getName().equals(attributeName)) {
- context.getResult().set(control.getDeadLetterAddress());
- } else if (PAUSED.equals(attributeName)) {
- try {
- context.getResult().set(control.isPaused());
- } catch (RuntimeException e) {
- throw e;
- } catch (Exception e) {
- throw new RuntimeException(e);
- }
- } else if (TEMPORARY.equals(attributeName)) {
- context.getResult().set(control.isTemporary());
- } else if (METRICS.contains(attributeName) || READ_ATTRIBUTES.contains(attributeName)) {
- // Bug
- throw MESSAGES.unsupportedAttribute(attributeName);
- }
- context.completeStep();
- }
- public void registerAttributes(final ManagementResourceRegistration registration) {
- for (String attr : READ_ATTRIBUTES) {
- registration.registerReadOnlyAttribute(attr, this, AttributeAccess.Storage.RUNTIME);
- }
- for (String metric : METRICS) {
- registration.registerMetric(metric, this);
- }
- }
- }