[TASK] Add SimulationControlWindow
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@ -1,125 +1,28 @@
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package lu.jpt.csparqltest;
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import java.text.ParseException;
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import org.apache.log4j.PropertyConfigurator;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import eu.larkc.csparql.core.engine.CsparqlEngine;
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import eu.larkc.csparql.core.engine.CsparqlEngineImpl;
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import eu.larkc.csparql.core.engine.CsparqlQueryResultProxy;
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import lu.jpt.csparqltest.gui.TextObserverWindow;
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import lu.jpt.csparqltest.misc.TestStreamGenerator;
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import lu.jpt.csparqltest.gui.SimulationControlWindow;
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import lu.jpt.csparqltest.rentacar.RentACarSimulation;
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public class Main {
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private static Logger logger = LoggerFactory.getLogger(Main.class);
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public static TextObserverWindow observerWindow;
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public static Logger logger = LoggerFactory.getLogger(Main.class);
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public static void main(String[] args) {
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Main.observerWindow = new TextObserverWindow("Result observer window");
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// Determines the time the engine will be run for
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final long millisecondsToRun = 50 * 1000;
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// Load configuration for log4j
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// Initialize a logger
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try {
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PropertyConfigurator.configure("./src/main/resources/log4j.properties");
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} catch(Throwable t) {
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PropertyConfigurator.configure("/log4j.properties");
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}
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// Instantiate and initialize engine
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CsparqlEngine engine = new CsparqlEngineImpl();
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engine.initialize(true);
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// Add local background knowledge from file into graph
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/*
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try {
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engine.putStaticNamedModel("http://example.org/carSimKnowledgeGraph", CsparqlUtils.serializeRDFFile("data/carSimulationABox.rdf"));
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} catch (Exception e) {
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logger.error(e.toString());
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logger.error(e.getStackTrace().toString());
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}
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*/
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/* Use a SPARQL Query to update the local knowledge from code instead of using CONSTRUCT within the engine.
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String updateQuery = "PREFIX : <http://www.streamreasoning.org/ontologies/sr4ld2014-onto#> "
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+ "INSERT DATA "
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+ "{ GRAPH <http://streamreasoning.org/roomConnection> { :room :isConnectedTo :room2 } }";
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engine.execUpdateQueryOverDatasource(updateQuery);
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*/
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// Debugging: Needed to verify which engine is being used
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logger.debug("CWD: " + System.getProperty("user.dir"));
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logger.debug("Engine from: " + engine.getClass().getProtectionDomain().getCodeSource());
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// Create and register stream generator at specific URI
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//RentACarSimulation simulation = new RentACarSimulation();
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//engine.registerStream(simulation.getCarStream());
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//engine.registerStream(simulation.getDriverStream());
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TestStreamGenerator testStreamGenerator = new TestStreamGenerator("http://example.org");
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engine.registerStream(testStreamGenerator);
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// Run simulation that is feeding the streams
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//Thread simulationThread = new Thread(simulation);
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//simulationThread.start();
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Thread testGeneratorThread = new Thread(testStreamGenerator);
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testGeneratorThread.start();
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// Now build a query to run - interchangeable
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String query = Main.getPatternANOTBCQuery();
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//String query = RentACarSimulation.getEventUsingBackgroundKnowledge();
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// Create a result proxy by registering the query at the engine
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CsparqlQueryResultProxy resultProxy = null;
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try {
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resultProxy = engine.registerQuery(query, true);
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} catch (ParseException e) {
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logger.error(e.toString());
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logger.error(e.getStackTrace().toString());
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}
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// Enable reasoning with rdfs rules from file and a tbox rdf file.
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/*try {
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engine.updateReasoner(
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resultProxy.getSparqlQueryId(),
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CsparqlUtils.fileToString("data/rdfs.rules"),
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ReasonerChainingType.FORWARD,
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CsparqlUtils.serializeRDFFile("data/carSimulationTBox.rdf")
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);
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} catch(Exception e) {
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e.printStackTrace();
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logger.error(e.toString());
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logger.error(e.getStackTrace().toString());
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}*/
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// Add observer to query result proxy
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resultProxy.addObserver(Main.observerWindow);
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// Let it all run for some time
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try {
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Thread.sleep(millisecondsToRun);
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} catch (InterruptedException e) {
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logger.error(e.getMessage(), e);
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}
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// Unregister the resultProxy (and thus the query) from the engine
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engine.unregisterQuery(resultProxy.getId());
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// Softly stop the simulation and unregister its streams
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//simulation.pleaseStopSimulation();
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//simulationThread.interrupt();
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//engine.unregisterStream(simulation.getCarStream().getIRI());
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//engine.unregisterStream(simulation.getDriverStream().getIRI());
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testStreamGenerator.pleaseStop();
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testGeneratorThread.interrupt();
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engine.unregisterStream(testStreamGenerator.getIRI());
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// Initialize SimulationContext and wire it up with its control window
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SimulationContext simulationContext = new SimulationContext();
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@SuppressWarnings("unused")
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SimulationControlWindow simulationControlWindow = new SimulationControlWindow(simulationContext);
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// That's it, the program is now basically running on its own.
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}
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private static String getSPO() {
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149
src/main/java/lu/jpt/csparqltest/SimulationContext.java
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149
src/main/java/lu/jpt/csparqltest/SimulationContext.java
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package lu.jpt.csparqltest;
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import java.text.ParseException;
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import java.util.ArrayList;
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import java.util.Collection;
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import eu.larkc.csparql.cep.api.RdfStream;
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import eu.larkc.csparql.core.engine.CsparqlEngine;
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import eu.larkc.csparql.core.engine.CsparqlEngineImpl;
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import eu.larkc.csparql.core.engine.CsparqlQueryResultProxy;
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import lu.jpt.csparqltest.gui.TextObserverWindow;
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import lu.jpt.csparqltest.rentacar.RentACarSimulation;
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public class SimulationContext {
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// Internal simulation context
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public enum SimulationState { UNINITIALIZED, INITIALIZED, RUNNING, PAUSED, SUSPENDED, TORNDOWN, ERROR};
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private SimulationState currentState;
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// C-SPARQL related
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private CsparqlEngine engine;
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private Collection<RdfStream> registeredStreams;
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private Collection<CsparqlQueryResultProxy> queryResultProxies;
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// Custom simulation related
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private RentACarSimulation simulation;
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private Thread simulationThread;
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/**
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* Constructor
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*/
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public SimulationContext() {
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this.currentState = SimulationState.UNINITIALIZED;
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this.setup();
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}
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public void start() {
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if(this.currentState != SimulationState.INITIALIZED) {
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throw new RuntimeException("Action not allowed in this state!");
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}
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simulationThread = new Thread(simulation);
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simulationThread.start();
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this.currentState = SimulationState.RUNNING;
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}
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public void pause() {
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if(this.currentState != SimulationState.RUNNING) {
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throw new RuntimeException("Action not allowed in this state!");
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}
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// TODO: Implement pausing the generatorThread(s)
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this.currentState = SimulationState.PAUSED;
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}
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public void resume() {
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if(this.currentState != SimulationState.PAUSED) {
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throw new RuntimeException("Action not allowed in this state!");
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}
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// TODO: Implement resuming the generatorThread(s)
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this.currentState = SimulationState.RUNNING;
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}
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public void suspend() {
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if(this.currentState != SimulationState.RUNNING
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&& this.currentState != SimulationState.PAUSED) {
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throw new RuntimeException("Action not allowed in this state!");
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}
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this.simulation.pleaseStopSimulation();
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this.simulationThread.interrupt();
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this.currentState = SimulationState.SUSPENDED;
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}
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public void tearDown() {
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if(this.currentState != SimulationState.SUSPENDED) {
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throw new RuntimeException("Action not allowed in this state!");
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}
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// Unregister all queries from the engine
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for(CsparqlQueryResultProxy resultProxy : this.queryResultProxies) {
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this.engine.unregisterQuery(resultProxy.getId());
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}
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// Unregister all rdf streams from the engine
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for(RdfStream eventStream : this.registeredStreams) {
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this.engine.unregisterStream(eventStream.getIRI());
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}
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this.currentState = SimulationState.TORNDOWN;
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}
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public SimulationState getSimulationState() {
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return this.currentState;
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}
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private void setup() {
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// Prepare collections for registered streams and query result proxies
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this.registeredStreams = new ArrayList<RdfStream>();
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this.queryResultProxies = new ArrayList<CsparqlQueryResultProxy>();
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// Instantiate and initialize engine
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engine = new CsparqlEngineImpl();
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// Initialize with true to allow use of timestamp function
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this.engine.initialize(true);
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// Debugging output
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Main.logger.debug("CWD: " + System.getProperty("user.dir"));
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Main.logger.debug("Engine from: " + engine.getClass().getProtectionDomain().getCodeSource());
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// Load local domain knowledge into its target graph
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/*
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try {
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engine.putStaticNamedModel("http://example.org/carSimKnowledgeGraph", CsparqlUtils.serializeRDFFile("data/carSimulationABox.rdf"));
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} catch (Exception e) {
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Main.logger.error(e.toString());
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Main.logger.error(e.getStackTrace().toString());
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}
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*/
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// Note: This is how local domain knowledge can be updated during runtime:
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/* Use a SPARQL Query to update the local knowledge from code instead of using CONSTRUCT within the engine.
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String updateQuery = "PREFIX : <http://www.streamreasoning.org/ontologies/sr4ld2014-onto#> "
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+ "INSERT DATA "
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+ "{ GRAPH <http://streamreasoning.org/roomConnection> { :room :isConnectedTo :room2 } }";
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this.engine.execUpdateQueryOverDatasource(updateQuery);
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*/
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// Spawn the whole simulation - this takes care of simulation-specific things
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simulation = new RentACarSimulation();
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// Register all the event streams
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// Register car event stream
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RdfStream carStream = simulation.getCarStream();
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engine.registerStream(carStream);
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this.registeredStreams.add(carStream);
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// Register driver event stream
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RdfStream driverStream = simulation.getDriverStream();
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engine.registerStream(driverStream);
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this.registeredStreams.add(driverStream);
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// Register all the queries and add result observers!
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String query = RentACarSimulation.getEventsQuery();
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CsparqlQueryResultProxy resultProxy = null;
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try {
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resultProxy = engine.registerQuery(query, true);
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} catch (ParseException e) {
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Main.logger.error(e.toString());
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Main.logger.error(e.getStackTrace().toString());
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}
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this.queryResultProxies.add(resultProxy);
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resultProxy.addObserver(new TextObserverWindow("ResultProxy Observer Window"));
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// Setup complete, ready to run.
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this.currentState = SimulationState.INITIALIZED;
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}
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}
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@ -0,0 +1,89 @@
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package lu.jpt.csparqltest.gui;
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import java.awt.BorderLayout;
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import java.awt.Container;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import lu.jpt.csparqltest.SimulationContext;
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public class SimulationControlWindow extends JFrame {
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private static final long serialVersionUID = 1L;
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private SimulationContext simulationContext;
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public SimulationControlWindow(SimulationContext simulationContext) {
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this.simulationContext = simulationContext;
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this.initializeWindow();
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}
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private void initializeWindow() {
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final SimulationControlWindow simulationControlWindow = this;
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this.setUndecorated(false);
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this.setDefaultCloseOperation(EXIT_ON_CLOSE);
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this.setTitle("Simulation control window");
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Container contentPane = this.getContentPane();
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JPanel buttonPanel = new JPanel();
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// Create start button
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JButton startButton = new JButton("Start");
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startButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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simulationControlWindow.simulationContext.start();
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((JButton) e.getSource()).setEnabled(false);
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}
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});
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buttonPanel.add(startButton);
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// Create pause button
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JButton pauseButton = new JButton("Pause");
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pauseButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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JButton source = (JButton) e.getSource();
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if(source.getText().equals("Pause")) {
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simulationControlWindow.simulationContext.pause();
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source.setText("Resume");
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} else {
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simulationControlWindow.simulationContext.resume();
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source.setText("Pause");
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}
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simulationControlWindow.pack();
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}
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});
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buttonPanel.add(pauseButton);
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// Create stop button
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JButton stopButton = new JButton("Stop");
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stopButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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simulationControlWindow.simulationContext.suspend();
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((JButton) e.getSource()).setEnabled(false);
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}
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});
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buttonPanel.add(stopButton);
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// Create shutdown button
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JButton shutdownButton = new JButton("Shutdown");
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shutdownButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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simulationControlWindow.simulationContext.tearDown();
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((JButton) e.getSource()).setEnabled(false);
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}
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});
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buttonPanel.add(shutdownButton);
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// Add buttonPanel to contentPane
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contentPane.add(buttonPanel, BorderLayout.CENTER);
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this.setVisible(true);
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this.pack();
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}
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}
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@ -101,6 +101,7 @@ public class RentACarSimulation implements Runnable {
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this.runSimulation = false;
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}
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public static String getEventsQuery() {
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return "REGISTER QUERY getEvents AS "
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+ "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
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