Merge To trunk. Adding filtering of Positions in past. NIHVIVO-984

src/edu/cornell/mannlib/vitro/webapp/servlet/setup/VivoMergedListFilteringSetup.java

@@ -0,0 +1,116 @@
+/* $This file is distributed under the terms of the license in /doc/license.txt$ */
+
+package edu.cornell.mannlib.vitro.webapp.servlet.setup;
+
+import javax.servlet.ServletContextEvent;
+
+import net.sf.jga.fn.UnaryFunctor;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.joda.time.DateTime;
+
+import edu.cornell.mannlib.vitro.webapp.beans.DataPropertyStatement;
+import edu.cornell.mannlib.vitro.webapp.beans.Individual;
+import edu.cornell.mannlib.vitro.webapp.beans.ObjectPropertyStatement;
+import edu.cornell.mannlib.vitro.webapp.controller.EntityMergedPropertyListController;
+import edu.cornell.mannlib.vitro.webapp.dao.filtering.IndividualFiltering;
+import edu.cornell.mannlib.vitro.webapp.dao.filtering.filters.VitroFiltersImpl;
+
+/**
+ * This adds an object to the servlet context that will be used by 
+ * EntityMergedPropertiesListController to convert the individual that
+ * is specified by the URI of the request to an individual that is filtered.  
+ * The object is a function from an Individual to an Individual.  The original
+ * Individual is wrapped in an object that will filter out any object property statements
+ * to Individuals of core:Position whos date is in the past.
+ * 
+ * This is related to http://issues.library.cornell.edu/browse/NIHVIVO-984
+ * 
+ * @author bdc34
+ *
+ */
+public class VivoMergedListFilteringSetup implements javax.servlet.ServletContextListener {
+	private static final Log log = LogFactory.getLog(VivoMergedListFilteringSetup.class);
+	
+	@Override
+	public void contextDestroyed(ServletContextEvent arg0) {
+	}
+
+	@Override
+	public void contextInitialized(ServletContextEvent arg0) {
+		log.info("Setting up Vivo Merged List Filtering.");
+		
+		UnaryFunctor<Individual,Individual> fn = new UnaryFunctor<Individual,Individual>(){
+
+			@Override
+			public Individual fn(Individual subject) {			
+				if( subject != null && subject.isVClass("http://xmlns.com/foaf/0.1/Organization")){
+					return new IndividualFiltering(subject, new VitroFiltersImpl(){
+						
+	//					@Override
+	//					public UnaryFunctor<Individual, Boolean> getIndividualFilter(){
+	//						return new UnaryFunctor<Individual,Boolean>(){
+	//							@Override
+	//							public Boolean fn(Individual arg) {
+	//								return ! isPast(arg);
+	//							}							
+	//						};						
+	//					}
+						
+						/**
+						 * This returns true if we should keep the statement, false if we should get rid of the statement
+						 */
+						@Override
+						public UnaryFunctor<ObjectPropertyStatement, Boolean> getObjectPropertyStatementFilter(){
+							return new UnaryFunctor<ObjectPropertyStatement,Boolean>(){
+								@Override
+								public Boolean fn(ObjectPropertyStatement arg) {
+									if( "http://vivoweb.org/ontology/core#organizationForPosition".equals(arg.getPropertyURI())){
+										return ! positionInPast(arg.getObject());
+									}else{
+										return true;
+									}
+								}							
+							};						
+						}
+						
+						
+					});
+				}else{
+					return subject;
+				}
+			}			
+		};
+		
+		EntityMergedPropertyListController.setMergedPropertyListFilter(fn, arg0.getServletContext());		
+	}
+	
+	
+	private boolean positionInPast(Individual ind){	
+		
+		if( ind.isVClass( "http://vivoweb.org/ontology/core#Position" ) ){
+			
+			//positionShortView.jsp does not check core:endDate
+//			for(DataPropertyStatement stmt : ind.getDataPropertyStatements("http://vivoweb.org/ontology/core#endDate")){
+//				 DateTime end = new DateTime( stmt.getData() );
+//				 if( end.isBeforeNow() )
+//					 return true; 
+//			}
+			
+			for(DataPropertyStatement stmt : ind.getDataPropertyStatements("http://vivoweb.org/ontology/core#endYear")){
+				int endYear = Integer.MAX_VALUE;
+				try{
+					endYear = Integer.parseInt(stmt.getData());
+				}catch(NumberFormatException nfe){
+					log.warn("Could not parse year: " + stmt.getData());
+				}
+				int nowYear = (new DateTime()).getYear();
+				
+				//This should use the same logic as positionShortView.jsp
+				return nowYear > endYear;				
+			}
+		}
+		return false;
+	}
+}