/**
    * Copyright 2005-2014 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.krms.impl.repository;
  
  import org.apache.log4j.Logger;
  import org.kuali.rice.core.api.criteria.CriteriaLookupService;
  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
  import org.kuali.rice.krms.api.repository.type.KrmsTypeRepositoryService;
  import org.kuali.rice.krms.impl.authorization.AgendaAuthorizationService;
  import org.kuali.rice.krms.impl.provider.repository.RepositoryToEngineTranslator;
  
  import javax.xml.namespace.QName;
  
  /**
   * This class keeps track of the KRMS Repository Services
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public final class KrmsRepositoryServiceLocator {
  
      private KrmsRepositoryServiceLocator() {
          // private constructor since this is class is all static utility methods
      }
  
  	private static final Logger LOG = Logger.getLogger(KrmsRepositoryServiceLocator.class);
  
      public static final String KRMS_ATTRIBUTE_DEFINITION_SERVICE = "krmsAttributeDefinitionService";
      public static final String KRMS_TYPE_REPOSITORY_SERVICE = "krmsTypeRepositoryService";
      public static final String CRITERIA_LOOKUP_SERVICE = "criteriaLookupService";
      public static final String KRMS_CONTEXT_BO_SERVICE = "contextBoService";
      public static final String KRMS_AGENDA_BO_SERVICE = "agendaBoService";
      public static final String KRMS_TERM_BO_SERVICE = "termBoService";
      public static final String KRMS_RULE_BO_SERVICE = "ruleBoService";
      public static final String KRMS_AGENDA_AUTHORIZATION_SERVICE = "agendaAuthorizationService";
      public static final String KRMS_REPOSITORY_TO_ENGINE_TRANSLATOR = "repositoryToEngineTranslator";
  
  	private static KrmsAttributeDefinitionService krmsAttributeDefinitionService;
      private static ContextBoService contextBoService;
      private static TermBoService termBoService;
      private static AgendaBoService agendaBoService;
      private static RuleBoService ruleBoService;
      private static AgendaAuthorizationService agendaAuthorizationService;
      private static KrmsTypeRepositoryService krmsTypeRepositoryService;
      private static RepositoryToEngineTranslator krmsRepositoryToEngineTranslator;
  
      public static <T extends Object> T getService(String serviceName) {
  		return KrmsRepositoryServiceLocator.<T>getBean(serviceName);
  	}
  
  	public static <T extends Object> T getBean(String serviceName) {
  		if ( LOG.isDebugEnabled() ) {
  			LOG.debug("Fetching service " + serviceName);
  		}
  		return GlobalResourceLoader.<T>getService(QName.valueOf(serviceName));
  	}
  
      public static KrmsAttributeDefinitionService getKrmsAttributeDefinitionService() {
  		if ( krmsAttributeDefinitionService == null ) {
  			krmsAttributeDefinitionService = getService(KRMS_ATTRIBUTE_DEFINITION_SERVICE);
  		}
  		return krmsAttributeDefinitionService;
      }
  
      public static CriteriaLookupService getCriteriaLookupService() {
          return getService(CRITERIA_LOOKUP_SERVICE);
      }
  
  	public static void setKrmsAttributeDefinitionService(final KrmsAttributeDefinitionService service) {
  		krmsAttributeDefinitionService = service;
  	}
  
      public static ContextBoService getContextBoService() {
          if (contextBoService == null) {
              contextBoService = getService(KRMS_CONTEXT_BO_SERVICE);
          }
          return contextBoService;
      }
  
      public static TermBoService getTermBoService() {
          if (termBoService == null) {
              termBoService = getService(KRMS_TERM_BO_SERVICE);
          }
          return termBoService;
      }
  
     public static AgendaBoService getAgendaBoService() {
         if (agendaBoService == null) {
             agendaBoService = getService(KRMS_AGENDA_BO_SERVICE);
         }
         return agendaBoService;
     }
 
     public static RuleBoService getRuleBoService() {
         if (ruleBoService == null) {
             ruleBoService = getService(KRMS_RULE_BO_SERVICE);
         }
         return ruleBoService;
     }
 
     public static AgendaAuthorizationService getAgendaAuthorizationService() {
         if (agendaAuthorizationService == null) {
             agendaAuthorizationService = getService(KRMS_AGENDA_AUTHORIZATION_SERVICE);
         }
         return agendaAuthorizationService;
     }
 
     public static KrmsTypeRepositoryService getKrmsTypeRepositoryService() {
         if (krmsTypeRepositoryService == null) {
             krmsTypeRepositoryService = getService(KRMS_TYPE_REPOSITORY_SERVICE);
         }
         return krmsTypeRepositoryService;
     }
 
     public static RepositoryToEngineTranslator getKrmsRepositoryToEngineTranslator() {
         if (krmsRepositoryToEngineTranslator == null) {
             krmsRepositoryToEngineTranslator = getService(KRMS_REPOSITORY_TO_ENGINE_TRANSLATOR);
         }
         return krmsRepositoryToEngineTranslator;
     }
 }