/*
 * 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.tuscany.sca.binding.jms.provider;

import java.util.logging.Logger;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageListener;
import javax.jms.Queue;
import javax.jms.Topic;

import org.apache.tuscany.sca.assembly.Binding;
import org.apache.tuscany.sca.binding.jms.impl.JMSBinding;
import org.apache.tuscany.sca.binding.jms.impl.JMSBindingConstants;
import org.apache.tuscany.sca.binding.jms.impl.JMSBindingException;
import org.apache.tuscany.sca.binding.jms.transport.TransportServiceInterceptor;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.host.jms.JMSServiceListener;
import org.apache.tuscany.sca.host.jms.JMSServiceListenerFactory;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.invocation.InvocationChain;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.invocation.Phase;
import org.apache.tuscany.sca.provider.OperationSelectorProvider;
import org.apache.tuscany.sca.provider.OperationSelectorProviderFactory;
import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
import org.apache.tuscany.sca.provider.ServiceBindingProviderRRB;
import org.apache.tuscany.sca.provider.WireFormatProvider;
import org.apache.tuscany.sca.provider.WireFormatProviderFactory;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentService;
import org.apache.tuscany.sca.runtime.RuntimeWire;

/**
 * Implementation of the JMS service binding provider.
 * 
 * @version $Rev$ $Date$
 */
public class JMSBindingServiceBindingProvider implements ServiceBindingProviderRRB {
    private static final Logger logger = Logger.getLogger(JMSBindingServiceBindingProvider.class.getName());

    private RuntimeComponentService service;
    private Binding targetBinding;
    private JMSBinding jmsBinding;
    private JMSResourceFactory jmsResourceFactory;
    private JMSServiceListenerFactory serviceListenerFactory;
    private JMSServiceListener serviceListener;

    private ExtensionPointRegistry extensionPoints;

    private RuntimeComponent component;
    private InterfaceContract wsdlInterfaceContract;
    

    private ProviderFactoryExtensionPoint providerFactories;
    private ModelFactoryExtensionPoint modelFactories;
    
    private MessageFactory messageFactory;
    
    private OperationSelectorProviderFactory operationSelectorProviderFactory;
    private OperationSelectorProvider operationSelectorProvider;
    
    private WireFormatProviderFactory requestWireFormatProviderFactory;
    private WireFormatProvider requestWireFormatProvider;
    
    private WireFormatProviderFactory responseWireFormatProviderFactory;
    private WireFormatProvider responseWireFormatProvider;

    public JMSBindingServiceBindingProvider(RuntimeComponent component, RuntimeComponentService service, Binding targetBinding, JMSBinding binding, JMSServiceListenerFactory serviceListenerFactory, ExtensionPointRegistry extensionPoints, JMSResourceFactory jmsResourceFactory) {
        this.component = component;
        this.service = service;
        this.jmsBinding = binding;
        this.serviceListenerFactory = serviceListenerFactory;
        this.targetBinding = targetBinding;
        this.extensionPoints = extensionPoints;
        this.jmsResourceFactory = jmsResourceFactory;

        if (jmsBinding.getDestinationName().equals(JMSBindingConstants.DEFAULT_DESTINATION_NAME)) {
            if (!service.isCallback()) {
                // use the SCA service name as the default destination name
                jmsBinding.setDestinationName(service.getName());
            }
        }
        
        // Get Message factory
        modelFactories = extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class);
        messageFactory = modelFactories.getFactory(MessageFactory.class);

        // Get the factories/providers for operation selection       
        this.providerFactories = extensionPoints.getExtensionPoint(ProviderFactoryExtensionPoint.class);
        this.operationSelectorProviderFactory =
            (OperationSelectorProviderFactory)providerFactories.getProviderFactory(jmsBinding.getOperationSelector().getClass());
        if (this.operationSelectorProviderFactory != null){
            this.operationSelectorProvider = operationSelectorProviderFactory.createServiceOperationSelectorProvider(component, service, jmsBinding);
        }
        
        // Get the factories/providers for wire format        
        this.requestWireFormatProviderFactory = 
            (WireFormatProviderFactory)providerFactories.getProviderFactory(jmsBinding.getRequestWireFormat().getClass());
        if (this.requestWireFormatProviderFactory != null){
            this.requestWireFormatProvider = requestWireFormatProviderFactory.createServiceWireFormatProvider(component, service, jmsBinding);
        }
        
        this.responseWireFormatProviderFactory = 
            (WireFormatProviderFactory)providerFactories.getProviderFactory(jmsBinding.getResponseWireFormat().getClass());
        if (this.responseWireFormatProviderFactory != null){
            this.responseWireFormatProvider = responseWireFormatProviderFactory.createServiceWireFormatProvider(component, service, jmsBinding);
        }
    }

    public InterfaceContract getBindingInterfaceContract() {
        return requestWireFormatProvider.getWireFormatInterfaceContract();
    }

    public boolean supportsOneWayInvocation() {
        return true;
    }

    public void start() {
        try {

            MessageListener listener = new RRBJMSBindingListener(jmsBinding, jmsResourceFactory, service, targetBinding, messageFactory);
            this.serviceListener = serviceListenerFactory.createJMSServiceListener(service.getName(), service.isCallback(), jmsBinding, listener);
            serviceListener.start();
            
        } catch (Exception e) {
            throw new JMSBindingException("Error starting JMSServiceBinding", e);
        }
    }

    public void stop() {
        try {
            serviceListener.stop();
        } catch (Exception e) {
            throw new JMSBindingException("Error stopping JMSServiceBinding", e);
        }
    }

    public String getDestinationName() {
        return serviceListener.getDestinationName();
    }
    
    /*
     * Adds JMS specific interceptors to the binding chain
     */
    public void configureBindingChain(RuntimeWire runtimeWire) {
        
        InvocationChain bindingChain = runtimeWire.getBindingInvocationChain();
        
        // add transport interceptor
        bindingChain.addInterceptor(Phase.SERVICE_BINDING_TRANSPORT, 
                                    new TransportServiceInterceptor(jmsBinding,
                                                                    jmsResourceFactory,
                                                                    runtimeWire) );

        // add operation selector interceptor
        bindingChain.addInterceptor(operationSelectorProvider.getPhase(), 
                                    operationSelectorProvider.createInterceptor());
        
        // add request wire format
        bindingChain.addInterceptor(requestWireFormatProvider.getPhase(), 
                                    requestWireFormatProvider.createInterceptor());
        
        // add response wire format, but only add it if it's different from the request
        if (!jmsBinding.getRequestWireFormat().equals(jmsBinding.getResponseWireFormat())){
            bindingChain.addInterceptor(responseWireFormatProvider.getPhase(), 
                                        responseWireFormatProvider.createInterceptor());
        }
    }
}