beginning infrastructure for NIHVIVO-590, migrating Date/Time representation

webapp/src/edu/cornell/mannlib/vitro/webapp/ontology/update/DateTimeMigration.java

@@ -0,0 +1,63 @@
+/* $This file is distributed under the terms of the license in /doc/license.txt$ */
+
+package edu.cornell.mannlib.vitro.webapp.ontology.update;
+
+import com.hp.hpl.jena.ontology.OntModel;
+import com.hp.hpl.jena.rdf.model.Model;
+import com.hp.hpl.jena.rdf.model.ModelFactory;
+import com.hp.hpl.jena.shared.Lock;
+
+/**  
+* Performs knowledge base updates to the abox to align with the new
+* 1.2 Date/Time representation.
+*   
+*/ 
+public class DateTimeMigration {
+
+	private OntModel aboxModel;
+	private OntologyChangeLogger logger;  
+	private OntologyChangeRecord record;
+
+	/**
+	 * Constructor 
+	 *  
+	 * @param   aboxModel    - the knowledge base to be updated
+	 * @param   logger       - for writing to the change log
+	 *                         and the error log.
+	 * @param   record       - for writing to the additions model 
+	 *                         and the retractions model.                  
+	 */
+	public DateTimeMigration(OntModel aboxModel,OntologyChangeLogger logger, OntologyChangeRecord record) {
+		
+		this.aboxModel = aboxModel;
+		this.logger = logger;
+		this.record = record;
+	}
+	
+	/**
+	 * 
+	 * Update a knowledge base to align with changes in the Date/Time class
+	 * and property definitions in the transition from version 1.1 to 1.2.
+	 *  
+	 */
+	public void updateABox() {
+				
+		aboxModel.enterCriticalSection(Lock.WRITE);
+		
+		try {
+			
+	       Model additions = ModelFactory.createDefaultModel();
+	       Model retractions = ModelFactory.createDefaultModel();
+	       
+
+	    
+		   aboxModel.remove(retractions);
+		   record.recordRetractions(retractions);
+		   aboxModel.add(additions);
+		   record.recordAdditions(additions);
+		   
+		} finally {
+			aboxModel.leaveCriticalSection();
+		}	
+	}	
+}

webapp/src/edu/cornell/mannlib/vitro/webapp/ontology/update/OntologyUpdater.java

@@ -80,6 +80,9 @@ public class OntologyUpdater {
 	
 	private void performUpdate() throws IOException {
 		
+		DateTimeMigration dtMigration = new DateTimeMigration(settings.getOntModelSelector().getABoxModel(), logger, record);
+        dtMigration.updateABox();
+		
 		performSparqlConstructAdditions(settings.getSparqlConstructAdditionsDir(), settings.getOntModelSelector().getABoxModel());
 		performSparqlConstructRetractions(settings.getSparqlConstructDeletionsDir(), settings.getOntModelSelector().getABoxModel());