eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/validation/ValidationDaemon.java

   1 package eu.etaxonomy.taxeditor.editor.validation;
   2
   3 import java.util.List;
   4
   5 import org.apache.log4j.Logger;
   6 import org.eclipse.core.runtime.IProgressMonitor;
   7 import org.eclipse.core.runtime.IStatus;
   8 import org.eclipse.core.runtime.Status;
   9 import org.eclipse.core.runtime.jobs.Job;
  10
  11 import eu.etaxonomy.cdm.api.service.IEntityValidationService;
  12 import eu.etaxonomy.cdm.model.validation.EntityValidation;
  13 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  14 import eu.etaxonomy.taxeditor.store.CdmStore;
  15
  16 /**
  17  * A job that repeatedly checks the error tables and refreshes the problem
  18  * markers created from them.
  19  *
  20  * @author ayco_holleman
  21  *
  22  */
  23 public class ValidationDaemon extends Job {
  24         @SuppressWarnings("unused")
  25         private static final Logger logger = Logger.getLogger(ValidationDaemon.class);
  26
  27         private final IEntityValidationService entityValidationService;
  28
  29         // Might want to make this configurable:
  30         private int SLEEP_TIME = 5000;
  31
  32         private boolean cancelRequested = false;
  33
  34
  35
  36         public ValidationDaemon(){
  37                 super("Running validation daemon");
  38                 entityValidationService = CdmStore.getService(IEntityValidationService.class);
  39         }
  40
  41
  42         @Override
  43         protected void canceling(){
  44                 cancelRequested = true;
  45         }
  46
  47
  48         /**
  49          * This method is called by {@link ValidationContextListener} rather than
  50          * {@link Job#cancel()}, because that method does not have the desired
  51          * effect.
  52          */
  53         public void setCancelRequested(){
  54                 cancelRequested = true;
  55         }
  56
  57
  58         @Override
  59         protected IStatus run(IProgressMonitor monitor){
  60                 MarkerManager markerManager;
  61                 List<EntityValidation> results;
  62                 try {
  63                         while (!cancelRequested) {
  64                                 results = entityValidationService.getValidationResults();
  65                                 markerManager = new MarkerManager(results);
  66                                 markerManager.deleteObsoleteMarkers();
  67                                 markerManager.createMarkers();
  68                                 Thread.sleep(SLEEP_TIME);
  69                         }
  70                         MessagingUtils.info("Validation module stopped");
  71                         return Status.OK_STATUS;
  72                 }
  73                 catch (Throwable t) {
  74                         MessagingUtils.info("Validation module terminated unexpectedly: " + t.getMessage());
  75                         return Status.CANCEL_STATUS;
  76                 }
  77         }
  78
  79 }