package org.kuali.ole.docstore.service;
   
   import org.kuali.ole.docstore.discovery.service.AdminService;
   import org.kuali.ole.docstore.discovery.service.AdminServiceImpl;
   import org.kuali.ole.docstore.discovery.service.IndexerService;
   import org.kuali.ole.docstore.discovery.service.IndexerServiceImpl;
   import org.kuali.ole.solr.DummyAdminService;
   import org.kuali.ole.solr.DummyIndexerServiceImpl;
   import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Class for getting services without depending on the implementation classes.
   * User: tirumalesh.b
   * Date: 22/12/11 Time: 8:05 PM
   */
  public class ServiceLocator {
      private static Boolean        OLE_DOCSTORE_USE_DISCOVERY = null;
      private static IndexerService indexerService             = IndexerServiceImpl.getInstance();
      private static IndexerService dummyIndexerService        = DummyIndexerServiceImpl.getInstance();
      private static final Logger   LOG                        = LoggerFactory.getLogger(ServiceLocator.class);
      private static AdminService   adminService               = AdminServiceImpl.getInstance();
      private static AdminService   adminServiceDummy          = new DummyAdminService();
  
      public static IndexerService getIndexerService() {
          initUseDiscovery();
          if (OLE_DOCSTORE_USE_DISCOVERY) {
              return indexerService;
          }
          else {
              return dummyIndexerService;
          }
      }
  
      private static void initUseDiscovery() {
          if (OLE_DOCSTORE_USE_DISCOVERY != null) {
              return;
          }
  
          String strUseDiscovery = System.getProperty("OLE_DOCSTORE_USE_DISCOVERY");
          if ((strUseDiscovery != null) && strUseDiscovery.equalsIgnoreCase("false")) {
              OLE_DOCSTORE_USE_DISCOVERY = Boolean.FALSE;
          }
          else {
              OLE_DOCSTORE_USE_DISCOVERY = Boolean.TRUE;
          }
          LOG.info("OLE_DOCSTORE_USE_DISCOVERY = " + OLE_DOCSTORE_USE_DISCOVERY);
      }
  
      public static AdminService getDiscoveryAdminService() {
          initUseDiscovery();
          if (OLE_DOCSTORE_USE_DISCOVERY)
              return adminService;
          else
              return adminServiceDummy;
      }
  }