/*

  * Copyright 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.service.impl;

 import org.kuali.rice.core.config.ConfigContext;

 import org.kuali.rice.core.lifecycle.BaseLifecycle;

 import org.kuali.rice.ksb.messaging.AsynchronousCall;

 import org.kuali.rice.ksb.messaging.PersistedMessage;

 import org.kuali.rice.ksb.messaging.callforwarding.ForwardedCallHandlerImpl;

 import org.kuali.rice.ksb.messaging.config.ServiceBasedServiceDefinitionRegisterer;

 import org.kuali.rice.ksb.messaging.service.BusAdminService;

 import org.kuali.rice.ksb.messaging.threadpool.KSBThreadPool;

 import org.kuali.rice.ksb.service.KSBServiceLocator;

 /**

  * Implementation of the Bus Admin service.

  *

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

  */

 public class BusAdminServiceImpl extends BaseLifecycle implements BusAdminService {

     private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(BusAdminServiceImpl.class);

     private ServiceBasedServiceDefinitionRegisterer defRegisterer;

     public void forward(PersistedMessage message) throws Exception {

         // this is just weird...

         AsynchronousCall methodCall = message.getPayload().getMethodCall();

         message.setMethodCall(methodCall);

         // TODO there's probably a better way to servisize or refactor this

         new ForwardedCallHandlerImpl().handleCall(message);

     }

     public void ping() {

     }

     public void setCorePoolSize(int corePoolSize) {

         LOG.info("Setting core pool size to " + corePoolSize);

         KSBServiceLocator.getThreadPool().setCorePoolSize(corePoolSize);

     }

     public void setMaximumPoolSize(int maxPoolSize) {

         LOG.info("Setting max pool size to " + maxPoolSize);

         KSBThreadPool threadPool = KSBServiceLocator.getThreadPool();

         if (maxPoolSize < threadPool.getCorePoolSize()) {

             maxPoolSize = threadPool.getCorePoolSize();

         }

         threadPool.setMaximumPoolSize(maxPoolSize);

     }

     public void setConfigProperty(String propertyName, String propertyValue) {

         String originalValue = ConfigContext.getCurrentContextConfig().getProperty(propertyName);

         LOG.info("Changing config property '" + propertyName + "' from " + originalValue + " to " + propertyValue);

         if (propertyValue == null) {

             ConfigContext.getCurrentContextConfig().removeProperty(propertyName);

         } else {

             ConfigContext.getCurrentContextConfig().putProperty(propertyName, propertyValue);

         }

     }

     public void start() throws Exception {

         this.defRegisterer = new ServiceBasedServiceDefinitionRegisterer("ksb.busAdminServiceDefinition");

         this.defRegisterer.registerServiceDefinition(false);

         setStarted(true);

     }

     public void stop() throws Exception {

         this.defRegisterer.unregisterServiceDefinition();

         setStarted(false);

     }

 }