/*

  * Copyright 2005-2007 The Kuali Foundation

  *

  *

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  *

  * 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.kuali.rice.ksb.messaging.serviceexporters;

 import java.util.List;

 import org.apache.cxf.Bus;

 import org.apache.cxf.binding.BindingFactoryManager;

 import org.apache.cxf.endpoint.ServerRegistry;

 import org.apache.cxf.interceptor.LoggingInInterceptor;

 import org.apache.cxf.interceptor.LoggingOutInterceptor;

 import org.apache.cxf.jaxrs.JAXRSBindingFactory;

 import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;

 import org.apache.cxf.jaxrs.lifecycle.SingletonResourceProvider;

 import org.apache.log4j.Logger;

 import org.kuali.rice.core.api.exception.RiceRuntimeException;

 import org.kuali.rice.ksb.api.bus.ServiceDefinition;

 import org.kuali.rice.ksb.api.bus.support.RestServiceDefinition;

 /**

  * ServiceExporter for RESTful services.  This class handles the service binding and exposure via CXF.

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class RESTServiceExporter extends AbstractWebServiceExporter implements ServiceExporter {

         private static final Logger LOG = Logger.getLogger(RESTServiceExporter.class);

         public RESTServiceExporter(RestServiceDefinition serviceDefinition, Bus cxfBus, ServerRegistry cxfServerRegistry) {

                 super(serviceDefinition, cxfBus, cxfServerRegistry);

         }

         /**

          * This publishes the cxf service onto the cxf bus.

          *

          * @param serviceImpl

          * @throws Exception

          */

         @Override

         public void publishService(ServiceDefinition serviceDefinition, Object serviceImpl, String address) {

                 RestServiceDefinition restServiceDef = (RestServiceDefinition)serviceDefinition;

                 LOG.info("Creating JAXRSService " + restServiceDef.getServiceName());

                 JAXRSServerFactoryBean svrFactory = new JAXRSServerFactoryBean();

         svrFactory.setBus(getCXFBus());

         List<Object> resources = restServiceDef.getResources();

         if (resources != null && !resources.isEmpty()) {

                 svrFactory.setServiceBeans(resources);

         } else {

                 try {

                         Class<?> resourceClass = this.getClass().getClassLoader().loadClass(restServiceDef.getResourceClass());

                         svrFactory.setResourceClasses(resourceClass);

                         svrFactory.setResourceProvider(resourceClass, new SingletonResourceProvider(serviceImpl));

                 } catch (ClassNotFoundException e) {

                         throw new RiceRuntimeException("Failed to publish the service because resource class could not be loaded: " + restServiceDef.getResourceClass(), e);

                 }

         }

         svrFactory.setServiceName(restServiceDef.getServiceName());

         svrFactory.setAddress(address);

         svrFactory.setExtensionMappings(restServiceDef.getExtensionMappings());

         svrFactory.setLanguageMappings(restServiceDef.getLanguageMappings());

         List<Object> providers = restServiceDef.getProviders();

         if (providers != null) {

                 svrFactory.setProviders(providers);

         }

         BindingFactoryManager bindingFactoryManager = getCXFBus().getExtension(BindingFactoryManager.class);

         JAXRSBindingFactory bindingFactory = new JAXRSBindingFactory();

         bindingFactory.setBus(getCXFBus());

         bindingFactoryManager.registerBindingFactory(JAXRSBindingFactory.JAXRS_BINDING_ID, bindingFactory);

                 //Set logging interceptors

         if (LOG.isDebugEnabled()) {

                 svrFactory.getInInterceptors().add(new LoggingInInterceptor());

         }

 //        svrFactory.getInInterceptors().add(new RESTConnector.VerifyingInInterceptor());

         if (LOG.isDebugEnabled()) {

                 svrFactory.getOutInterceptors().add(new LoggingOutInterceptor());

         }

 //                svrFactory.getOutInterceptors().add(new RESTConnector.SigningOutInterceptor());

         svrFactory.setPublishedEndpointUrl(restServiceDef.getEndpointUrl().toExternalForm());

                 svrFactory.create();

         }

 }