/*

  * 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 org.apache.commons.lang.StringUtils;

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

 import org.springframework.beans.factory.BeanInitializationException;

 import java.util.ArrayList;

 import java.util.List;

 /**

  * A KSBExporter which only exports the service if the specified property is set

  * to true.

  * 

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

  */

 public class PropertyConditionalKSBExporter extends KSBExporter {

         private List<String> exportIf = new ArrayList<String>();

         private List<String> exportUnless = new ArrayList<String>();

         private boolean exportIfPropertyNotSet = true;

         public void afterPropertiesSet() throws Exception {

                 if (shouldRemoteThisService()) {

                         super.afterPropertiesSet();

                 }

         }

         protected boolean shouldRemoteThisService() throws Exception {

                 if (exportIf.isEmpty() && exportUnless.isEmpty()) {

                         return true;

                 }

                 boolean remoteThisService = false;

                 String serviceValue = null;

                 // Check the value in the clients config file for services in the list

                 // of property named 'exportIf' loaded by Spring.

                 // if any are ="true" then set boolean to true and exit loop, so far the

                 // service will be published.

                 for (String expIf : exportIf) {

                         serviceValue = ConfigContext.getCurrentContextConfig().getProperty(expIf);

                         // if any are true, set boolean and exit loop.

                         if (!StringUtils.isBlank(serviceValue)) {

                                 remoteThisService = new Boolean(serviceValue);

                                 if (remoteThisService) {

                                         break;

                                 }

                         } else if (exportIfPropertyNotSet) {

                                 remoteThisService = true;

                                 break;

                         }

                 }

                 // Check a second list, if any are ="true" DON"T publish the service.

                 for (String expUnless : exportUnless) {

                         serviceValue = ConfigContext.getCurrentContextConfig()

                                         .getProperty(expUnless);

                         // if any are true, set boolean and exit loop.

                         if (!StringUtils.isBlank(serviceValue)) {

                                 remoteThisService = new Boolean(serviceValue);

                                 if (remoteThisService) {

                                         remoteThisService = new Boolean("false");

                                         break;

                                 }

                         }

                 }

                 return remoteThisService;

         }

         public List getExportIf() {

                 return this.exportIf;

         }

         public void setExportIf(List exportIf) throws BeanInitializationException {

                 this.exportIf = exportIf;

         }

         public List getExportUnless() {

                 return this.exportUnless;

         }

         public void setExportUnless(List exportUnless)

                         throws BeanInitializationException {

                 this.exportUnless = exportUnless;

         }

         public boolean isExportIfPropertyNotSet() {

                 return this.exportIfPropertyNotSet;

         }

         public void setExportIfPropertyNotSet(boolean exportIfPropertyNotSet) {

                 this.exportIfPropertyNotSet = exportIfPropertyNotSet;

         }

 }