| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.component.jms; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import javax.jms.JMSException; |
| import javax.jms.Queue; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.api.management.ManagedAttribute; |
| import org.apache.camel.api.management.ManagedResource; |
| import org.apache.camel.spi.BrowsableEndpoint; |
| import org.springframework.jms.core.JmsOperations; |
| |
| /** |
| * An endpoint for a JMS Queue which is also browsable |
| * |
| * @version |
| */ |
| @ManagedResource(description = "Managed JMS Queue Endpoint") |
| public class JmsQueueEndpoint extends JmsEndpoint implements BrowsableEndpoint { |
| private int maximumBrowseSize = -1; |
| private final QueueBrowseStrategy queueBrowseStrategy; |
| |
| public JmsQueueEndpoint(Queue destination) throws JMSException { |
| this("jms:queue:" + destination.getQueueName(), null); |
| setDestinationType("queue"); |
| setDestination(destination); |
| } |
| |
| public JmsQueueEndpoint(String uri, JmsComponent component, String destination, |
| JmsConfiguration configuration) { |
| this(uri, component, destination, configuration, null); |
| setDestinationType("queue"); |
| } |
| |
| public JmsQueueEndpoint(String uri, JmsComponent component, String destination, |
| JmsConfiguration configuration, QueueBrowseStrategy queueBrowseStrategy) { |
| super(uri, component, destination, false, configuration); |
| setDestinationType("queue"); |
| if (queueBrowseStrategy == null) { |
| this.queueBrowseStrategy = createQueueBrowseStrategy(); |
| } else { |
| this.queueBrowseStrategy = queueBrowseStrategy; |
| } |
| } |
| |
| public JmsQueueEndpoint(String endpointUri, String destination, QueueBrowseStrategy queueBrowseStrategy) { |
| super(endpointUri, destination, false); |
| setDestinationType("queue"); |
| if (queueBrowseStrategy == null) { |
| this.queueBrowseStrategy = createQueueBrowseStrategy(); |
| } else { |
| this.queueBrowseStrategy = queueBrowseStrategy; |
| } |
| } |
| |
| public JmsQueueEndpoint(String endpointUri, String destination) { |
| super(endpointUri, destination, false); |
| setDestinationType("queue"); |
| queueBrowseStrategy = createQueueBrowseStrategy(); |
| } |
| |
| @ManagedAttribute |
| public int getMaximumBrowseSize() { |
| return maximumBrowseSize; |
| } |
| |
| /** |
| * If a number is set > 0 then this limits the number of messages that are |
| * returned when browsing the queue |
| */ |
| @ManagedAttribute |
| public void setMaximumBrowseSize(int maximumBrowseSize) { |
| this.maximumBrowseSize = maximumBrowseSize; |
| } |
| |
| public List<Exchange> getExchanges() { |
| if (queueBrowseStrategy == null) { |
| return Collections.emptyList(); |
| } |
| String queue = getDestinationName(); |
| JmsOperations template = getConfiguration().createInOnlyTemplate(this, false, queue); |
| return queueBrowseStrategy.browse(template, queue, this); |
| } |
| |
| protected QueueBrowseStrategy createQueueBrowseStrategy() { |
| return new DefaultQueueBrowseStrategy(); |
| } |
| |
| } |