[TASK] Add QueryContainer class.

src/main/java/lu/jpt/csparqlproject/SimulationContext.java

@@ -9,16 +9,14 @@ import org.slf4j.LoggerFactory;
 
 import eu.larkc.csparql.cep.api.RdfStream;
 import eu.larkc.csparql.common.utils.CsparqlUtils;
-import eu.larkc.csparql.common.utils.ReasonerChainingType;
 import eu.larkc.csparql.core.engine.CsparqlEngine;
 import eu.larkc.csparql.core.engine.CsparqlEngineImpl;
 import eu.larkc.csparql.core.engine.CsparqlQueryResultProxy;
 import eu.larkc.csparql.core.engine.RDFStreamFormatter;
 import lu.jpt.csparqlproject.gui.FancyTextObserverWindow;
+import lu.jpt.csparqlproject.misc.QueryContainer;
 import lu.jpt.csparqlproject.misc.ReasoningTester;
 import lu.jpt.csparqlproject.rentacar.RentACarSimulation;
-import lu.jpt.csparqlproject.util.CsparqlQueryHelper;
-import lu.jpt.csparqlproject.util.CsparqlQueryHelper.CsparqlQueryInfo;
 
 /**
  * This class encapsulates the use of the C-SPARQL Engine. Here, the RentACarSimulation,
@@ -159,38 +157,39 @@ public class SimulationContext {
 		RdfStream driverStream = simulation.getDriverStream();
 		this.engine.registerStream(driverStream);
 		this.registeredStreams.add(driverStream);
-		Collection<String> queriesToRegister = new ArrayList<String>();
+		Collection<QueryContainer> queriesToRegister = new ArrayList<QueryContainer>();
 		// Collect the queries to use!
 		//queriesToRegister.add(RentACarSimulation.getEventsQuery());
 		queriesToRegister.add(RentACarSimulation.getAverageDataByCarAsStream());
 		queriesToRegister.add(RentACarSimulation.selectFromRegisteredStream());
 		// Now register each query appropriately!
-		for(String query : queriesToRegister) {
+		for(QueryContainer queryContainer : queriesToRegister) {
-			CsparqlQueryInfo queryInfo = CsparqlQueryHelper.getQueryInfo(query);
 			CsparqlQueryResultProxy resultProxy = null;
 			try {
-				resultProxy = this.engine.registerQuery(query, true);
+				resultProxy = this.engine.registerQuery(queryContainer.query, queryContainer.reasoningEnabled);
-				this.enableReasoningForResultProxy(resultProxy);
+				if(queryContainer.reasoningEnabled) {
+					this.enableReasoningForResultProxy(resultProxy, queryContainer);
+				}
 				// Take care of streams and queries differently.
-				if(queryInfo.isStream) {
+				if(queryContainer.isStream) {
 					// If the query is a stream, we need additional components to feed it back into the engine.
-					String streamUri = "http://example.org/stream/"+queryInfo.name;
+					String streamUri = "http://example.org/stream/"+queryContainer.name;
 					RDFStreamFormatter rdfStreamFormatter = new RDFStreamFormatter(streamUri);
 					engine.registerStream(rdfStreamFormatter);
 					resultProxy.addObserver(rdfStreamFormatter);
-					Observer resultObserver = this.createResultObserverWindow(queryInfo.name);
+					Observer resultObserver = this.createResultObserverWindow(queryContainer.name);
 					resultProxy.addObserver(resultObserver);
 				} else {
 					// If it is a regular query, just attach a fitting observer
-					Observer resultObserver = this.createResultObserverWindow(queryInfo.name);
+					Observer resultObserver = this.createResultObserverWindow(queryContainer.name);
 					resultProxy.addObserver(resultObserver);
 				}
 				this.queryResultProxies.add(resultProxy);
-				SimulationContext.logger.info("Successfully registered query " + queryInfo.name + ": " + query);
+				SimulationContext.logger.info("Successfully registered query " + queryContainer.name + ": " + queryContainer);
 			} catch (Exception e) {
 				SimulationContext.logger.error(e.toString());
-				SimulationContext.logger.error("Could not register query "+queryInfo.name);
+				SimulationContext.logger.error("Could not register query "+queryContainer.name);
-				SimulationContext.logger.error(query);
+				SimulationContext.logger.error(queryContainer.query);
 			}
 		}
 		// Setup complete, ready to run.
@@ -216,13 +215,19 @@ public class SimulationContext {
 		return observer;
 	}
 	
-	private void enableReasoningForResultProxy(CsparqlQueryResultProxy resultProxy) {
+	private void enableReasoningForResultProxy(CsparqlQueryResultProxy resultProxy, QueryContainer queryContainer) {
 		try {
-			engine.updateReasoner(
+			/* If not using the queryContainer, these would be valid parameters:
 				resultProxy.getSparqlQueryId(),
 				CsparqlUtils.fileToString("data/rdfs.rules"),
 				ReasonerChainingType.HYBRID,
 				CsparqlUtils.serializeRDFFile("data/carSimulationTBox.rdf")
+			 */
+			engine.updateReasoner(
+				resultProxy.getSparqlQueryId(),
+				queryContainer.ruleSet,
+				queryContainer.reasonerChainingType,
+				queryContainer.TBox
 			);
 		} catch(Exception e) {
 			e.printStackTrace();

src/main/java/lu/jpt/csparqlproject/misc/QueryContainer.java

@@ -0,0 +1,40 @@
+package lu.jpt.csparqlproject.misc;
+
+import eu.larkc.csparql.common.utils.ReasonerChainingType;
+
+/**
+ * Container class that allows for easier encapsulation of a query with
+ * configuration.
+ */
+public class QueryContainer {
+	public String name;
+	public String query;
+	public boolean isStream;
+	public boolean reasoningEnabled;
+	public String TBox;
+	public String ruleSet;
+	public ReasonerChainingType reasonerChainingType;
+	public boolean useObserverWindow;
+
+	public QueryContainer(String name, String query, boolean isStream) {
+		this.name = name;
+		this.query = query;
+		this.isStream = isStream;
+		this.reasoningEnabled = false;
+		this.TBox = "REASONING NOT PROPERLY ENABLED";
+		this.ruleSet = "REASONING NOT PROPERLY ENABLED";
+		this.reasonerChainingType = null;
+		this.useObserverWindow = false;
+	}
+
+	public void enableReasoning(String ruleSet, String TBox, ReasonerChainingType reasonerChainingType) {
+		this.reasoningEnabled = true;
+		this.ruleSet = ruleSet;
+		this.TBox = TBox;
+		this.reasonerChainingType = reasonerChainingType;
+	}
+
+	public void useObserverWindow() {
+		this.useObserverWindow = true;
+	}
+}

src/main/java/lu/jpt/csparqlproject/rentacar/RentACarSimulation.java

@@ -9,6 +9,7 @@ import org.slf4j.LoggerFactory;
 import eu.larkc.csparql.cep.api.RdfQuadruple;
 import eu.larkc.csparql.cep.api.RdfStream;
 import lu.jpt.csparqlproject.Main;
+import lu.jpt.csparqlproject.misc.QueryContainer;
 import lu.jpt.csparqlproject.util.WindowLoggingRdfStream;
 
 /**
@@ -146,8 +147,8 @@ public class RentACarSimulation implements Runnable {
 	}
 	
 	
-	public static String getEventsQuery() {
+	public static QueryContainer getEventsQuery() {
-		return "REGISTER QUERY getEvents AS "
+		String query = "REGISTER QUERY getCarStatusEvents AS "
 				+ "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
 				+ "PREFIX f: <http://larkc.eu/csparql/sparql/jena/ext#> "
 				+ "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> "
@@ -168,10 +169,13 @@ public class RentACarSimulation implements Runnable {
 				+ " ?e car:tirePressure3 ?tirePressure3 . "
 				+ " ?e car:tirePressure4 ?tirePressure4 . "
 				+ "}";
+		QueryContainer queryContainer = new QueryContainer("getCarStatusEvents", query, false);
+		queryContainer.useObserverWindow();
+		return queryContainer;
 	}
 	
-	public static String getEventUsingBackgroundKnowledge() {
+	public static QueryContainer getEventUsingBackgroundKnowledge() {
-		return "REGISTER QUERY getEventsCombinedWithBackgroundKnowledge AS "
+		String query = "REGISTER QUERY getEventsCombinedWithBackgroundKnowledge AS "
 				+ "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
 				+ "PREFIX f: <http://larkc.eu/csparql/sparql/jena/ext#> "
 				+ "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> "
@@ -187,10 +191,13 @@ public class RentACarSimulation implements Runnable {
 				+ " ?driver car:hasName ?driverName . "
 				+ " ?driver car:hasPhoneNumber ?driverPhone . "
 				+ "}";
+		QueryContainer queryContainer = new QueryContainer("getEventsCombinedWithBackgroundKnowledge", query, false);
+		queryContainer.useObserverWindow();
+		return queryContainer;
 	}
 	
-	public static String getSpeedByCar() {
+	public static QueryContainer getSpeedByCar() {
-		return "REGISTER QUERY getSpeedByCar AS "
+		String query = "REGISTER QUERY getSpeedByCar AS "
 				+ "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
 				+ "PREFIX f: <http://larkc.eu/csparql/sparql/jena/ext#> "
 				+ "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> "
@@ -202,10 +209,13 @@ public class RentACarSimulation implements Runnable {
 				+ " ?e car:relatedCar ?car . "
 				+ " ?e car:speed ?speed . "
 				+ "}";
+		QueryContainer queryContainer = new QueryContainer("getSpeedByCar", query, false);
+		queryContainer.useObserverWindow();
+		return queryContainer;
 	}
 	
-	public static String getAverageDataByCarAsStream() {
+	public static QueryContainer getAverageDataByCarAsStream() {
-		return "REGISTER STREAM getAverageSpeedByCar AS "
+		String query = "REGISTER STREAM getAverageSpeedByCar AS "
 				+ "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
 				+ "PREFIX f: <http://larkc.eu/csparql/sparql/jena/ext#> "
 				+ "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> "
@@ -227,13 +237,15 @@ public class RentACarSimulation implements Runnable {
 				+ "  GROUP BY (?car) "
 				+ " }"
 				+ "} ";
+		QueryContainer queryContainer = new QueryContainer("getAverageSpeedByCar", query, true);
+		return queryContainer;
 	}
 	
 	/**
 	 * IMPORTANT NOTE: STREAM gets matched everywhere, so don't call stuff "stream"!
 	 */
-	public static String selectFromRegisteredStream() {
+	public static QueryContainer selectFromRegisteredStream() {
-		return "REGISTER Query askRegisteredStrm AS "
+		String query = "REGISTER Query askRegisteredStrm AS "
 				+ "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
 				+ "PREFIX f: <http://larkc.eu/csparql/sparql/jena/ext#> "
 				+ "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> "
@@ -243,5 +255,8 @@ public class RentACarSimulation implements Runnable {
 				+ "WHERE { "
 				+ " ?s ?p ?o . "
 				+ "} ";
+		QueryContainer queryContainer = new QueryContainer("askRegisteredStrm", query, false);
+		queryContainer.useObserverWindow();
+		return queryContainer;
 	}
 }

src/main/java/lu/jpt/csparqlproject/util/CsparqlQueryHelper.java

@@ -1,60 +0,0 @@
-package lu.jpt.csparqlproject.util;
-
-import java.util.StringTokenizer;
-
-/**
- * Helper class that provides small methods to handle 
- * (strings containing) csparql queries.
- */
-public class CsparqlQueryHelper {
-
-	/**
-	 * Small inner class containing query info
-	 */
-	public class CsparqlQueryInfo {
-		public boolean isStream;
-		public String name;
-		
-		public CsparqlQueryInfo() {
-			this.name = "[UNRESOLVED NAME]";
-			this.isStream = false;
-		}
-	}
-	
-	/**
-	 * Returns the csparql query name stated within the query.
-	 * @param query given csparql query
-	 * @return query info using class CsparqlQueryInfo
-	 */
-	public static CsparqlQueryInfo getQueryInfo(String query) {
-		CsparqlQueryHelper.CsparqlQueryInfo result = new CsparqlQueryHelper().new CsparqlQueryInfo();
-		StringTokenizer tokenizer = new StringTokenizer(query);
-		boolean gotName = false;
-		int stateCounter = 0;
-		while(tokenizer.hasMoreElements() && gotName == false) {
-			String token = tokenizer.nextToken();
-			String trimmedLowerToken = token.toLowerCase().trim();
-			switch(stateCounter) {
-			case 0:
-				if(trimmedLowerToken.equals("register")) {
-					stateCounter++;
-				}
-				break;
-			case 1:
-				if(trimmedLowerToken.equals("query") || trimmedLowerToken.equals("stream")) {
-					if(trimmedLowerToken.equals("stream")) result.isStream = true;
-					stateCounter++;
-				}
-				break;
-			case 2:
-				result.name = token.trim();
-				gotName = true;
-				break;
-			default:
-				break;
-			}
-		}
-		return result;
-	}
-	
-}