/*

  * Copyright 2006-2011 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;

 import java.util.ArrayList;

 import java.util.List;

 import org.kuali.rice.core.api.config.ConfigurationException;

 import org.kuali.rice.core.api.config.module.RunMode;

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

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

 /**

  * A KSBExporter which will exports the service in the case where the specified

  * run mode is set.  The run mode order proceeds as follows:

  * 

  * <p>remote -> embedded -> local

  * 

  * <p>If any of the earlier run modes in the list is set, then the ones after it

  * will be applied.  So, if remote is set, then it will automatically be exported

  * for embedded and local run modes.

  * 

  * @author Kuali Rice Team (kuali-rice@googlegroups.com)

  */

 public class RunModeServiceExporter extends PropertyConditionalServiceBusExporter {

     private String runModePropertyName;

     private RunMode validRunMode;

     private static final List<RunMode> runModeHierarchy = new ArrayList<RunMode>();

     static {

             runModeHierarchy.add(RunMode.THIN);

             runModeHierarchy.add(RunMode.REMOTE);

             runModeHierarchy.add(RunMode.EMBEDDED);

             runModeHierarchy.add(RunMode.LOCAL);

     }

     @Override

         protected boolean shouldRemoteThisService() {

             if (validRunMode == null) {

                     throw new ConfigurationException("The validRunMode property was not set.");

             }

             if (!runModeHierarchy.contains(getValidRunMode())) {

                     throw new ConfigurationException("Given validRunMode is not a valid run mode.  Value was: " + getValidRunMode());

             }

                 RunMode runModePropertyValue = RunMode.valueOf(ConfigContext.getCurrentContextConfig().getProperty(getRunModePropertyName()));

             if (!runModeHierarchy.contains(runModePropertyValue)) {

                     throw new ConfigurationException("Run mode value set on runModePropertyName of '" + getRunModePropertyName() + "' is not a valid run mode.  Value was: " + runModePropertyValue);

             }

             List<RunMode> validRunModeSubList = runModeHierarchy.subList(runModeHierarchy.indexOf(getValidRunMode()), runModeHierarchy.size());

             return validRunModeSubList.contains(runModePropertyValue) && super.shouldRemoteThisService();

         }

         public String getRunModePropertyName() {

         return this.runModePropertyName;

     }

     public void setRunModePropertyName(String runModePropertyName) {

         this.runModePropertyName = runModePropertyName;

     }

     public RunMode getValidRunMode() {

         return this.validRunMode;

     }

     public void setValidRunMode(RunMode validRunMode) {

         this.validRunMode = validRunMode;

     }

 }