/**
 * 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.cxf.wsn.jms;

import java.net.URI;
import java.net.URISyntaxException;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.xml.bind.JAXBElement;
import javax.xml.namespace.QName;

import org.apache.cxf.wsn.AbstractNotificationBroker;
import org.apache.cxf.wsn.AbstractPublisher;
import org.apache.cxf.wsn.AbstractSubscription;
import org.oasis_open.docs.wsrf.rp_2.GetResourcePropertyResponse;
import org.oasis_open.docs.wsrf.rpw_2.InvalidResourcePropertyQNameFault;
import org.oasis_open.docs.wsrf.rw_2.ResourceUnavailableFault;
import org.oasis_open.docs.wsrf.rw_2.ResourceUnknownFault;

public abstract class JmsNotificationBroker extends AbstractNotificationBroker {

    private ConnectionFactory connectionFactory;

    private Connection connection;

    public JmsNotificationBroker(String name) {
        super(name);
    }

    public JmsNotificationBroker(String name, ConnectionFactory connectionFactory) {
        super(name);
        this.connectionFactory = connectionFactory;
    }

    public void init() throws Exception {
        if (connection == null) {
            connection = connectionFactory.createConnection();
            connection.start();
        }
        super.init();
    }

    public void destroy() throws Exception {
        if (connection != null) {
            connection.close();
        }
        super.destroy();
    }

    @Override
    protected AbstractPublisher createPublisher(String name) {
        JmsPublisher publisher = createJmsPublisher(name);
        publisher.setAddress(URI.create(getAddress()).resolve("registrations/" + name).toString());
        publisher.setManager(getManager());
        publisher.setConnection(connection);
        return publisher;
    }

    @Override
    protected AbstractSubscription createSubscription(String name) {
        JmsSubscription subscription = createJmsSubscription(name);
        subscription.setAddress(URI.create(getAddress()).resolve("subscriptions/" + name).toString());
        subscription.setManager(getManager());
        subscription.setConnection(connection);
        return subscription;
    }

    protected abstract JmsSubscription createJmsSubscription(String name);

    protected abstract JmsPublisher createJmsPublisher(String name);

    public ConnectionFactory getConnectionFactory() {
        return connectionFactory;
    }

    public void setConnectionFactory(ConnectionFactory connectionFactory) {
        this.connectionFactory = connectionFactory;
    }

    protected GetResourcePropertyResponse handleGetResourceProperty(QName property)
        throws ResourceUnavailableFault, ResourceUnknownFault, InvalidResourcePropertyQNameFault {
        
        if (TOPIC_EXPRESSION_QNAME.equals(property)) {
            // TODO
        } else if (FIXED_TOPIC_SET_QNAME.equals(property)) {
            // TODO
        } else if (TOPIC_EXPRESSION_DIALECT_QNAME.equals(property)) {
            GetResourcePropertyResponse r = new GetResourcePropertyResponse();
            try {
                r.getAny().add(new JAXBElement<URI>(TOPIC_EXPRESSION_DIALECT_QNAME, 
                        URI.class, new URI(JmsTopicExpressionConverter.SIMPLE_DIALECT)));
            } catch (URISyntaxException e) {
                r.getAny().add(new JAXBElement<String>(TOPIC_EXPRESSION_DIALECT_QNAME, 
                    String.class, JmsTopicExpressionConverter.SIMPLE_DIALECT));               
            }
            return r;
        } else if (TOPIC_SET_QNAME.equals(property)) {
            // TODO
        }
        return super.handleGetResourceProperty(property);
    }

}
