cdmlib-io/src/main/java/eu/etaxonomy/cdm/io/common/CdmDefaultIOBase.java

   1 /**
   2  * Copyright (C) 2008 EDIT
   3  * European Distributed Institute of Taxonomy
   4  * http://www.e-taxonomy.eu
   5  */
   6
   7 package eu.etaxonomy.cdm.io.common;
   8
   9 import org.apache.log4j.Logger;
  10
  11 import eu.etaxonomy.cdm.api.application.CdmApplicationController;
  12 import eu.etaxonomy.cdm.api.application.ICdmApplicationConfiguration;
  13 import eu.etaxonomy.cdm.database.DbSchemaValidation;
  14 import eu.etaxonomy.cdm.database.ICdmDataSource;
  15
  16 /**
  17  * This is an exporter that invokes the application aware defaultExport when
  18  * invoked itself
  19  *
  20  * @author a.babadshanjan
  21  * @created 17.11.2008
  22  */
  23 public class CdmDefaultIOBase<T extends IIoConfigurator> {
  24         @SuppressWarnings("unused")
  25         private static final Logger logger = Logger
  26                         .getLogger(CdmDefaultIOBase.class);
  27
  28         protected ICdmApplicationConfiguration cdmApp = null;
  29
  30         /**
  31          * Creates a new {@link CdmApplicationController} if it does not exist yet
  32          * or if createNew is <ocde>true</code>
  33          *
  34          * @param config
  35          * @param destination
  36          * @param omitTermLoading
  37          * @param createNew
  38          * @return
  39          */
  40         protected boolean startApplicationController(IIoConfigurator config,
  41                         ICdmDataSource cdmSource, boolean omitTermLoading, boolean createNew) {
  42                 if (config.getCdmAppController() != null) {
  43                         this.cdmApp = config.getCdmAppController();
  44                 }
  45                 DbSchemaValidation schemaValidation = config.getDbSchemaValidation();
  46                 if (this instanceof CdmDefaultExport) {
  47                         if (schemaValidation.equals(DbSchemaValidation.CREATE)
  48                                         || schemaValidation.equals(DbSchemaValidation.CREATE_DROP)) {
  49                                 throw new IllegalArgumentException(
  50                                                 "The export may not run with DbSchemaValidation.CREATE or DbSchemaValidation.CREATE_DROP as this value deletes the source database");
  51                         }
  52                 }
  53
  54                 if (createNew == true || cdmApp == null) {
  55                         cdmApp = CdmApplicationController.NewInstance(cdmSource,
  56                                         schemaValidation, omitTermLoading);
  57                         if (cdmApp != null) {
  58                                 return true;
  59                         } else {
  60                                 return false;
  61                         }
  62                 }
  63                 return true;
  64
  65         }
  66
  67         /**
  68          * Returns the {@link CdmApplicationController}. This is null if invoke()
  69          * has not been called yet and if the controller has not been set manually
  70          * by setCdmApp() yet.
  71          *
  72          * @return the cdmApp
  73          */
  74         public ICdmApplicationConfiguration getCdmAppController() {
  75                 return this.cdmApp;
  76         }
  77
  78         /**
  79          * @param cdmApp
  80          *            the cdmApp to set
  81          */
  82         public void setCdmAppController(ICdmApplicationConfiguration cdmApp) {
  83                 this.cdmApp = cdmApp;
  84         }
  85
  86 }