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package org.apache.cayenne.event;

import java.util.Collection;
import java.util.Collections;
import java.util.Map;

/**
 * Factory to create JMSBridge instances.
 * 
 * @since 1.1
 * @author Andrei Adamchik
 */
public class JMSBridgeFactory implements EventBridgeFactory {

    // this is an OpenJMS default for the factory name. Likely it won't work with
    // anything else
    public static final String TOPIC_CONNECTION_FACTORY_DEFAULT = "JmsTopicConnectionFactory";

    public static final String TOPIC_CONNECTION_FACTORY_PROPERTY = "cayenne.JMSBridge.topic.connection.factory";

    /**
     * @deprecated since 1.2, as we now need to support multiple subjects.
     */
    public EventBridge createEventBridge(EventSubject localSubject, Map properties) {
        return createEventBridge(Collections.singleton(localSubject), EventBridge
                .convertToExternalSubject(localSubject), properties);
    }
    
    /**
     * @since 1.2
     */
    public EventBridge createEventBridge(Collection localSubjects, String externalSubject, Map properties) {
        JMSBridge bridge = new JMSBridge(localSubjects, externalSubject);

        // configure properties
        String topicConnectionFactory = (String) properties
                .get(TOPIC_CONNECTION_FACTORY_PROPERTY);

        bridge.setTopicConnectionFactoryName(topicConnectionFactory != null
                ? topicConnectionFactory
                : TOPIC_CONNECTION_FACTORY_DEFAULT);

        return bridge;
    }
}




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