MetadataJmsConfig.java

package com.thinkbiganalytics.metadata.event.jms;

/*-
 * #%L
 * thinkbig-metadata-jms
 * %%
 * Copyright (C) 2017 ThinkBig Analytics
 * %%
 * Licensed 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.
 * #L%
 */

import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jms.config.DefaultJmsListenerContainerFactory;
import org.springframework.jms.core.JmsMessagingTemplate;
import org.springframework.jms.support.converter.SimpleMessageConverter;

import javax.annotation.Nonnull;
import javax.inject.Inject;
import javax.jms.ConnectionFactory;
import javax.jms.Queue;
import javax.jms.Topic;

/**
 * Initialize JMS objects.
 */
@Configuration
@ComponentScan({"com.thinkbiganalytics.activemq"})
public class MetadataJmsConfig {

    /**
     * JMS connection factory
     */
    @Inject
    private ConnectionFactory connectionFactory;

    /**
     * Gets the queue for triggering feeds for cleanup.
     *
     * @return the cleanup trigger queue
     */
    @Bean(name = "cleanupTriggerQueue")
    @Nonnull
    public Queue cleanupTriggerQueue() {
        return new ActiveMQQueue(MetadataQueues.CLEANUP_TRIGGER);
    }

    /**
     * Gets the topic for data source changes.
     *
     * @return the data source change topic
     */
    @Bean(name = "datasourceChangeTopic")
    @Nonnull
    public Topic datasourceChangeTopic() {
        return new ActiveMQTopic(MetadataTopics.DATASOURCE_CHANGE);
    }

    /**
     * Creates a Spring JMS Messaging Template.
     *
     * @return the JMS messaging template
     */
    @Bean(name = "metadataMessagingTemplate")
    @Nonnull
    public JmsMessagingTemplate jmsMessagingTemplate() {
        return new JmsMessagingTemplate(connectionFactory);
    }

    /**
     * Creates a Spring JMS Listener Container Factory.
     *
     * @return the JMS listener container factory
     */
    @Bean(name = "metadataListenerContainerFactory")
    @Nonnull
    public DefaultJmsListenerContainerFactory listenerContainerFactory() {
        DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
        factory.setConnectionFactory(connectionFactory);
        factory.setMessageConverter(new SimpleMessageConverter());
        return factory;
    }

    /**
     * Gets the queue for triggering feeds based on preconditions.
     *
     * @return the precondition trigger queue
     */
    @Bean(name = "preconditionTriggerQueue")
    @Nonnull
    public Queue preconditionTriggerQueue() {
        return new ActiveMQQueue(MetadataQueues.PRECONDITION_TRIGGER);
    }
}