/*

  * Copyright 2005-2009 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.apache.commons.lang.StringUtils;

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

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

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

 /**

  * 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 PropertyConditionalKSBExporter {

     private String runModePropertyName;

     private String validRunMode;

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

     static {

             runModeHierarchy.add(ModuleConfigurer.THIN_RUN_MODE);

             runModeHierarchy.add(ModuleConfigurer.REMOTE_RUN_MODE);

             runModeHierarchy.add(ModuleConfigurer.EMBEDDED_RUN_MODE);

             runModeHierarchy.add(ModuleConfigurer.LOCAL_RUN_MODE);

     }

     @Override

         protected boolean shouldRemoteThisService() throws Exception {

             if (StringUtils.isBlank(validRunMode)) {

                     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());

             }

                 String runModePropertyValue = ConfigContext.getCurrentContextConfig().getProperty(getRunModePropertyName());

             if (StringUtils.isBlank(runModePropertyValue)) {

                     throw new ConfigurationException("Given runModePropertyName does not have a value.  The runModePropertyName was " + 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<String> 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 String getValidRunMode() {

         return this.validRunMode;

     }

     public void setValidRunMode(String validRunMode) {

         this.validRunMode = validRunMode;

     }

 }