/*

  * 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.kns.config;

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

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

 import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;

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

 import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;

 import org.kuali.rice.kns.service.DataDictionaryService;

 import org.kuali.rice.kns.service.KNSServiceLocatorWeb;

 import org.kuali.rice.kns.util.KNSConstants;

 import javax.sql.DataSource;

 import java.util.ArrayList;

 import java.util.List;

 public class KNSConfigurer extends ModuleConfigurer {

         private DataSource applicationDataSource;

         private DataSource serverDataSource;

         private static final String KNS_SPRING_BEANS_PATH = "classpath:org/kuali/rice/kns/config/KNSSpringBeans.xml";

         private static final String KNS_KSB_SPRING_BEANS_PATH = "classpath:org/kuali/rice/kns/config/KNSServiceBusSpringBeans.xml";

         @Override

         public void addAdditonalToConfig() {

                 configureDataSource();

         }

         @Override

         public List<String> getPrimarySpringFiles() {

                 final List<String> springFileLocations = new ArrayList<String>();

                 //springFileLocations.add(KNS_SPRING_BEANS_PATH);

                 if ( isExposeServicesOnBus() ) {

                         springFileLocations.add(KNS_KSB_SPRING_BEANS_PATH);

                 }

                 return springFileLocations;

         }

         @Override

         public void doAdditionalContextStartedLogic() {

                 loadDataDictionary();

         }

         /**

      * Used to "poke" the Data Dictionary again after the Spring Context is initialized.  This is to

      * allow for modules loaded with KualiModule after the KNS has already been initialized to work.

      * 

      * Also initializes the DateTimeService

      */

     private void loadDataDictionary() {

                 if (isLoadDataDictionary()) {

             LOG.info("KNS Configurer - Loading DD");

                         DataDictionaryService dds = KNSServiceLocatorWeb.getDataDictionaryService();

                         if ( dds == null ) {

                                 dds = (DataDictionaryService) GlobalResourceLoader.getService(KNSServiceLocatorWeb.DATA_DICTIONARY_SERVICE);

                         }

                         dds.getDataDictionary().parseDataDictionaryConfigurationFiles(false);

                         if ( isValidateDataDictionary() ) {

                 LOG.info("KNS Configurer - Validating DD");

                                 dds.getDataDictionary().validateDD( isValidateDataDictionaryEboReferences() );

                         }

                         // KULRICE-4513 After the Data Dictionary is loaded and validated, perform Data Dictionary bean overrides.

                         dds.getDataDictionary().performBeanOverrides();

                 }                

         }

    /**

      * Returns true - KNS UI should always be included.

      *

      * @see org.kuali.rice.core.api.config.ModuleConfigurer#shouldRenderWebInterface()

      */

     @Override

     public boolean shouldRenderWebInterface() {

         return true;

     }

         public boolean isLoadDataDictionary() {

                 return Boolean.valueOf(ConfigContext.getCurrentContextConfig().getProperty("load.data.dictionary")).booleanValue();

         }

         public boolean isValidateDataDictionary() {

                 return Boolean.valueOf(ConfigContext.getCurrentContextConfig().getProperty("validate.data.dictionary")).booleanValue();

         }

         public boolean isValidateDataDictionaryEboReferences() {

                 return Boolean.valueOf(ConfigContext.getCurrentContextConfig().getProperty("validate.data.dictionary.ebo.references")).booleanValue();

         }

         /**

      * Used to "poke" the Data Dictionary again after the Spring Context is initialized.  This is to

      * allow for modules loaded with KualiModule after the KNS has already been initialized to work.

      * 

      * Also initializes the DateTimeService

      */

     protected void configureDataSource() {

         if (getApplicationDataSource() != null && getServerDataSource() == null) {

             throw new ConfigurationException("An application data source was defined but a server data source was not defined.  Both must be specified.");

         }

         if (getApplicationDataSource() == null && getServerDataSource() != null) {

             throw new ConfigurationException("A server data source was defined but an application data source was not defined.  Both must be specified.");

         }

         if (getApplicationDataSource() != null) {

                 ConfigContext.getCurrentContextConfig().putObject(KNSConstants.KNS_APPLICATION_DATASOURCE, getApplicationDataSource());

         }

         if (getServerDataSource() != null) {

                 ConfigContext.getCurrentContextConfig().putObject(KNSConstants.KNS_SERVER_DATASOURCE, getServerDataSource());

         }

     }

     public DataSource getApplicationDataSource() {

         return this.applicationDataSource;

     }

     public DataSource getServerDataSource() {

         return this.serverDataSource;

     }

     public void setApplicationDataSource(DataSource applicationDataSource) {

         this.applicationDataSource = applicationDataSource;

     }

     public void setServerDataSource(DataSource serverDataSource) {

         this.serverDataSource = serverDataSource;

     }

 }