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SEPIA provides implementations for various types of Petri nets. Along Place/Transition-nets, it supports Petri nets with distinguishable token colors and defines coloured workflow nets, where coloured tokens are interpreted as data elements used during process execution. To support information flow analysis of processes, SEPIA defines so-called IF-Nets, tailored for security-oriented workflow modeling which enable users to assign security-levels (HIGH, LOW) to transitions, data elements and persons/agents participating in the process execution.

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package de.uni.freiburg.iig.telematik.sepia.overlap;

import de.uni.freiburg.iig.telematik.sepia.petrinet.abstr.AbstractFlowRelation;
import de.uni.freiburg.iig.telematik.sepia.petrinet.abstr.AbstractMarking;
import de.uni.freiburg.iig.telematik.sepia.petrinet.abstr.AbstractPlace;
import de.uni.freiburg.iig.telematik.sepia.petrinet.abstr.AbstractTransition;
import de.uni.freiburg.iig.telematik.sepia.petrinet.properties.mg.StateSpaceException;
import de.uni.freiburg.iig.telematik.sepia.petrinet.properties.sequences.MGTraversalResult;
import de.uni.freiburg.iig.telematik.sepia.petrinet.properties.sequences.SequenceGenerationCallable;
import de.uni.freiburg.iig.telematik.sepia.petrinet.properties.sequences.SequenceGenerationCallableGenerator;
import de.uni.freiburg.iig.telematik.sepia.petrinet.properties.threaded.AbstractPNPropertyCheckerCallable;
import de.uni.freiburg.iig.telematik.sepia.replay.ReplayCallable;
import de.uni.freiburg.iig.telematik.sepia.replay.ReplayCallableGenerator;
import de.uni.freiburg.iig.telematik.sepia.replay.ReplayResult;
import de.uni.freiburg.iig.telematik.sewol.log.LogEntry;

public class OverlapCallable< 	P extends AbstractPlace, 
								T extends AbstractTransition, 
								F extends AbstractFlowRelation, 
								M extends AbstractMarking, 
								S extends Object,
								E extends LogEntry> extends AbstractPNPropertyCheckerCallable> {
	
	protected OverlapCallable(OverlapCallableGenerator generator) {
		super(generator);
	}
	
	@SuppressWarnings("unchecked")
	@Override
	protected OverlapCallableGenerator getGenerator() {
		return (OverlapCallableGenerator) super.getGenerator();
	}

	@Override
	protected OverlapResult callRoutine() throws OverlapException, InterruptedException {
		// Generate Sequences
		MGTraversalResult traversalResult = null;
		try {
			SequenceGenerationCallable sequenceGeneratorCallable = new SequenceGenerationCallable(new SequenceGenerationCallableGenerator(getGenerator()));
			traversalResult = sequenceGeneratorCallable.callRoutine();
			getGenerator().setMarkingGraph(sequenceGeneratorCallable.getMarkingGraph());
		} catch(Exception e){
			// Abort when Petri net is unbounded
			if(e.getCause() != null && e.getCause() instanceof StateSpaceException){
				throw new OverlapException("Cannot generate sequences of unbounded net", e);
			}
			throw new OverlapException("Exception during marking graph construction", e);
		}
		
		// Perform replay
		ReplayResult replayResult = null;
		try {
			ReplayCallable replayingCallable = new ReplayCallable(new ReplayCallableGenerator(getGenerator()));
			replayResult = replayingCallable.callRoutine();
		} catch(Exception e){
			throw new OverlapException("Exception during replay", e);
		}
		
		return new OverlapResult(traversalResult, replayResult);
	}
	
}