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javaFMI is a Java Library for the functional mock-up interface (or FMI). FMI defines a standardized interface to be used in computer simulations. The FMI Standard has beed developed by a large number of software companies and research centers that have worked in a cooperation project under the name of MODELISAR. This library addresses the connection of a java application with a FMU (functional mock-up unit).

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/*
 *  Copyright 2013-2016 SIANI - ULPGC
 *
 *  This File is part of JavaFMI Project
 *
 *  JavaFMI Project is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License.
 *
 *  JavaFMI Project is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with JavaFMI. If not, see .
 */

package org.javafmi.proxy;

import com.sun.jna.Structure;

import java.util.Arrays;
import java.util.List;

public interface FmiProxyV21 extends FmiProxyV2 {

	RealsAtEvent getRealsAtEvent(double communicationPoint, int... valueReference);

	IntegersAtEvent getIntegersAtEvent(double communicationPoint, int... valueReference);

	BooleansAtEvent getBooleansAtEvent(double communicationPoint, int... valueReference);

	StringsAtEvent getStringsAtEvent(double communicationPoint, int... valueReference);

	HybridDoStepStatus hybridDoStep(double communicationPoint, double stepSize);

	double getNextEventTime();

	class HybridDoStepStatus {
		Status status;
		boolean occurredEvent;
		double endTime;

		public HybridDoStepStatus(Status status, boolean occurredEvent, double endTime) {
			this.status = status;
			this.occurredEvent = occurredEvent;
			this.endTime = endTime;
		}

		public Status getStatus() {
			return status;
		}

		public boolean isOccurredEvent() {
			return occurredEvent;
		}

		public double getEndTime() {
			return endTime;
		}

	}

	Status newDiscreteStates(EventInfo info);

	class EventInfo extends Structure {
		public boolean newDiscreteStatesNeeded, terminateSimulation, nominalsOfContinuousStatesChanged, valuesOfContinuousStatesChanged, nextEventTimeDefined;
		public double nextEventTime;

		public EventInfo(boolean newDiscreteStatesNeeded, boolean terminateSimulation, boolean nominalsOfContinuousStatesChanged, boolean valuesOfContinuousStatesChanged, boolean nextEventTimeDefined, double nextEventTime) {
			super();
			this.newDiscreteStatesNeeded = newDiscreteStatesNeeded;
			this.terminateSimulation = terminateSimulation;
			this.nominalsOfContinuousStatesChanged = nominalsOfContinuousStatesChanged;
			this.valuesOfContinuousStatesChanged = valuesOfContinuousStatesChanged;
			this.nextEventTimeDefined = nextEventTimeDefined;
			this.nextEventTime = nextEventTime;
		}

		public boolean isNewDiscreteStatesNeeded() {
			return newDiscreteStatesNeeded;
		}

		public boolean isTerminateSimulation() {
			return terminateSimulation;
		}

		public boolean isNominalsOfContinuousStatesChanged() {
			return nominalsOfContinuousStatesChanged;
		}

		public boolean isValuesOfContinuousStatesChanged() {
			return valuesOfContinuousStatesChanged;
		}

		public boolean isNextEventTimeDefined() {
			return nextEventTimeDefined;
		}

		public double nextEventTime() {
			return nextEventTime;
		}

		@Override
		protected List getFieldOrder() {
			return Arrays.asList("newDiscreteStatesNeeded", "terminateSimulation", "nominalsOfContinuousStatesChanged", "valuesOfContinuousStatesChanged", "nextEventTimeDefined", "nextEventTime");
		}
	}

	class VariablesAtEvent {

		private final boolean eventOccurred;

		public VariablesAtEvent(boolean eventOccurred) {
			this.eventOccurred = eventOccurred;
		}

		public boolean isEventOccurred() {
			return eventOccurred;
		}
	}

	class RealsAtEvent extends VariablesAtEvent {

		private final double[] beforeEvent;
		private final double[] afterEvent;

		public RealsAtEvent(boolean eventOccurred, double[] beforeEvent, double[] afterEvent) {
			super(eventOccurred);
			this.beforeEvent = beforeEvent;
			this.afterEvent = afterEvent;
		}

		public double[] getBeforeEvent() {
			return beforeEvent;
		}

		public double[] getAfterEvent() {
			return afterEvent;
		}

	}

	class IntegersAtEvent extends VariablesAtEvent {

		private final int[] beforeEvent;
		private final int[] afterEvent;

		public IntegersAtEvent(boolean eventOccurred, int[] beforeEvent, int[] afterEvent) {
			super(eventOccurred);
			this.beforeEvent = beforeEvent;
			this.afterEvent = afterEvent;
		}

		public int[] getBeforeEvent() {
			return beforeEvent;
		}

		public int[] getAfterEvent() {
			return afterEvent;
		}

	}

	class BooleansAtEvent extends VariablesAtEvent {

		private final boolean[] beforeEvent;
		private final boolean[] afterEvent;

		public BooleansAtEvent(boolean eventOccurred, boolean[] beforeEvent, boolean[] afterEvent) {
			super(eventOccurred);
			this.beforeEvent = beforeEvent;
			this.afterEvent = afterEvent;
		}

		public boolean[] getBeforeEvent() {
			return beforeEvent;
		}

		public boolean[] getAfterEvent() {
			return afterEvent;
		}

	}

	class StringsAtEvent extends VariablesAtEvent {

		private final String[] beforeEvent;
		private final String[] afterEvent;

		public StringsAtEvent(boolean eventOccurred, String[] beforeEvent, String[] afterEvent) {
			super(eventOccurred);
			this.beforeEvent = beforeEvent;
			this.afterEvent = afterEvent;
		}

		public String[] getBeforeEvent() {
			return beforeEvent;
		}

		public String[] getAfterEvent() {
			return afterEvent;
		}

	}
}