praktikum-holons/src/ui/controller/SimulationManager.java

package ui.controller;

import classes.*;
import classes.comparator.EnergyMinToMaxComparator;
import classes.comparator.MinEnergyComparator;
import classes.comparator.WeakestBattery;
import ui.model.Model;
import ui.view.FlexiblePane;
import ui.view.MyCanvas;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;


/**
 * Controller for Simulation.
 *
 * @author Gruppe14
 */
public class SimulationManager {
	int global = 0;
	private Model model;
	private ArrayList<AbstractCpsObject> objectsToHandle;
	// private ArrayList<CpsEdge> allConnections;
	private ArrayList<SubNet> subNets;
	private ArrayList<CpsEdge> brokenEdges;
	private MyCanvas canvas;
	private int timeStep;
	private HashMap<Integer, Float> tagTable = new HashMap<>();
	private FlexiblePane flexPane;

	private HashMap<HolonElement, Float> flexDevicesTurnedOnThisTurn = new HashMap<>();

	/**
	 * One Element of each HolonObject will be powered first, starting with the
	 * smallest Demand. If ale HolonObjects have an active Element, the
	 * simulation will try to fully supply as many HolonObjects as possible.
	 */
	public static final short fairnessMininumDemandFirst = 0;

	/**
	 * All HolonObjects will receive the same amount of energy.
	 */
	public static final short fairnessAllEqual = 1;

	/**
	 * Constructor.
	 *
	 * @param m
	 *            Model
	 */
	SimulationManager(Model m) {
		canvas = null;
		model = m;
		subNets = new ArrayList<>();
		brokenEdges = new ArrayList<>();
	}

	/**
	 * calculates the flow of the edges and the supply for objects.
	 *
	 * @param x
	 *            current Iteration
	 */
	void calculateStateForTimeStep(int x) {
		reset();
		timeStep = x;
		searchForSubNets();
		for (SubNet singleSubNet : subNets) {
			if(singleSubNet.getObjects().size() == 0)
			{
				resetConnections(singleSubNet.getBatteries().get(0),
						new ArrayList<>(), new ArrayList<>());
			}else
			{
				resetConnections(singleSubNet.getObjects().get(0),
					new ArrayList<>(), new ArrayList<>());
			}
			
		}
		for (SubNet singleSubNet : subNets) {
			float production = calculateEnergyWithoutFlexDevices("prod",
					singleSubNet, timeStep);
			float consumption = calculateEnergyWithoutFlexDevices("cons",
					singleSubNet, timeStep);
			// surplus of energy is computed by sum, since consumption is a
			// negative value
			float energySurplus = production + consumption;
			
			
			//float minConsumption = calculateMinimumEnergy(singleSubNet, timeStep);

			// --------------- use flexible devices ---------------
			if (energySurplus != 0 && model.useFlexibleDevices()) {
				turnOnFlexibleDevices(singleSubNet, energySurplus, x);

				// if (!flexDevicesTurnedOnThisTurn.isEmpty()) {
				// System.out.println("The following devices were turned on in this turn: ");
				// System.out.println(flexDevicesTurnedOnThisTurn.toString());
				// }

				// recompute after having examined/turned on all flexible
				// devices
				production = calculateEnergyWithFlexDevices("prod",
						singleSubNet, timeStep);
				consumption = calculateEnergyWithFlexDevices("cons",
						singleSubNet, timeStep);
				energySurplus = production + consumption;
			}

			// --------------- set flow simulation ---------------
			setFlowSimulation(singleSubNet);

			// --------------- visualise graph ---------------

			/**
			 * production of subnets, that might be partially turned on/off
			 */
			float currentProduction = production;
			/**
			 * HolonObjects that can be partially Supplied but might be fully
			 * Supplied
			 */
			/*
			ArrayList<HolonObject> partiallySuppliedList = new ArrayList<HolonObject>();
			/**
			 * HolonObjects that can get the spare energy
			 */
//			
//			ArrayList<HolonObject> notSuppliedList = new ArrayList<HolonObject>();
			/**
			 * Number of HolonObjects that need to be supplied
			 */
//			long numberOfConsumers = singleSubNet.getObjects().stream()
//			.filter(hl -> (hl.getState() != HolonObject.NO_ENERGY
//					&& hl.getState() != HolonObject.PRODUCER && hl
//					.getConnectedTo().stream()
//					.filter(e -> (e.getFlow() > 0)).count() > 0))
//			.count();
			/**
			 * energy each HolonObject receives in AlleEqualModus
			 */
			
			if(energySurplus >= 0)
			{
				//Supply all consumer
				for(HolonObject hO : singleSubNet.getObjects())
				{
					float neededEnergy = hO.getCurrentEnergyAtTimeStep(x);
					if(neededEnergy < 0)
					{
						hO.setCurrentSupply(-neededEnergy);
						currentProduction -= -neededEnergy; //Subtract the Energy from the Production
					}
				}
				//Supply all Batterys with the left currentProduction
				singleSubNet.getBatteries().sort(new WeakestBattery(x));//Sort all batteries by the Value of ther StateOfCharge/Capasity
				for(HolonBattery hB : singleSubNet.getBatteries())
				{
					float energyToCollect = hB.getInAtTimeStep(x-1);
					if(currentProduction >= energyToCollect)
					{
						//change StateofCharge soc = soc + energyToCollect
						hB.setStateOfChargeAtTimeStep(hB.getStateOfChargeAtTimeStep(x-1) + energyToCollect, x);
						currentProduction -= energyToCollect;
					}else
					{
						//change StateofCharge soc = soc + currentProduction
						hB.setStateOfChargeAtTimeStep(hB.getStateOfChargeAtTimeStep(x-1) + currentProduction, x);
						currentProduction = 0;
						//no break must be calculatet for all break; //because no more energy
					}
				}
				//Over_Supply all consumer equal
				long nOConsumer = singleSubNet.getObjects().stream().filter(hl -> (hl.getCurrentEnergyAtTimeStep(x) < 0)).count();			
				if(nOConsumer != 0)
				{
					//energy to seperated equal 
					float EnergyOverSupplyPerHolonObject = currentProduction / nOConsumer;
					for(HolonObject hO : singleSubNet.getObjects())
					{
						float neededEnergy = hO.getCurrentEnergyAtTimeStep(x);
						if(neededEnergy < 0)
						{
							hO.setCurrentSupply(hO.getCurrentSupply() + EnergyOverSupplyPerHolonObject);
						}
					}
					currentProduction = 0;
				}
			}
			else
			{
				//Check all Battries what they can provide
				if(energySurplus + GetOutAllBatteries(singleSubNet.getBatteries(), x) >= 0)
				{
					singleSubNet.getBatteries().sort(new WeakestBattery(x));//.reverse();
					Collections.reverse(singleSubNet.getBatteries()); //most supplyed first
					//Get the NEEDED energy
					for(HolonBattery hB : singleSubNet.getBatteries())
					{
						float neededEnergyFromBattery = currentProduction + consumption; //Energy is negativ
						float maxEnergyAvailable = hB.getOutAtTimeStep(x-1); //energy is positiv
						if(maxEnergyAvailable >= -neededEnergyFromBattery)
						{
							//change StateofCharge soc = soc - -neededEnergyFromBattery
							hB.setStateOfChargeAtTimeStep(hB.getStateOfChargeAtTimeStep(x-1) - -neededEnergyFromBattery, x);
							currentProduction += -neededEnergyFromBattery;
							//no break must be calculatet for all beabreak; //When a energy can supply the last needed energy break;
						}
						else
						{
							//change StateofCharge soc = soc - maxEnergyAvailable
							hB.setStateOfChargeAtTimeStep(hB.getStateOfChargeAtTimeStep(x-1) - maxEnergyAvailable, x);
							currentProduction += maxEnergyAvailable;
						}
					}
					//Supply all consumer all ar in state Supplied no one is oversupplied because 
					//	just the energy that is needed is gained from the batteries
					for(HolonObject hO : singleSubNet.getObjects())
					{
						float neededEnergy = hO.getCurrentEnergyAtTimeStep(x);
						if(neededEnergy < 0)
						{
							hO.setCurrentSupply(-neededEnergy);
							currentProduction -= -neededEnergy; //Subtract the Energy from the Production
						}
					}
				}
				else //Objects have to be partially supplied
				{
					//Get all Energy out of battries as possible
					for(HolonBattery hB : singleSubNet.getBatteries())
					{
						float maxEnergyAvailable = hB.getOutAtTimeStep(x-1); //energy is positiv
						//change StateofCharge soc = soc - maxEnergyAvailable
						hB.setStateOfChargeAtTimeStep(hB.getStateOfChargeAtTimeStep(x-1) - maxEnergyAvailable, x);
						currentProduction += maxEnergyAvailable;
					}
					//Calc
					singleSubNet.getObjects().stream().forEach(hl -> hl.setCurrentSupply(0));
					if(model.getFairnessModel() == fairnessAllEqual)
					{
						long nOConsumer = singleSubNet.getObjects().stream().filter(hl -> (hl.getCurrentEnergyAtTimeStep(x) < 0)).count();
						float energyPerHolonObject = 0;
						if (nOConsumer != 0)
							energyPerHolonObject = currentProduction / nOConsumer;
						for(HolonObject hO : singleSubNet.getObjects())
						{
							if(hO.getCurrentEnergyAtTimeStep(x) < 0) //Just Consumer need Energy 
							{
								hO.setCurrentSupply(energyPerHolonObject);
								currentProduction -= energyPerHolonObject; //Subtract the Energy from the Production
							}
						}
					}
					else //(model.getFairnessModel() == fairnessMininumDemandFirst)
					{
						singleSubNet.getObjects().sort(new MinEnergyComparator(x));
						//SupplyAllMinimumEnergy
						for(HolonObject hO : singleSubNet.getObjects())
						{
							if(hO.checkIfPartiallySupplied(x))continue;
							if(hO.getCurrentEnergyAtTimeStep(x) > 0)continue;
							float minEnergy = -hO.getMinEnergy(x); //Energy from getMinEnergy is negative -> convert to positive
							if(minEnergy <= currentProduction)
							{
								hO.setCurrentSupply(minEnergy);
								currentProduction -= minEnergy;
							}else
							{
								hO.setCurrentSupply(currentProduction);
								currentProduction = 0;
								break;
							}
						}
						singleSubNet.getObjects().sort(new EnergyMinToMaxComparator(x));
						//supplyFullytillEnd ... because its cant be fully supplied 
						for(HolonObject hO : singleSubNet.getObjects())
						{
							
							float actualSupplyEnergy = hO.getCurrentSupply();
							float neededEnergy = -hO.getCurrentEnergyAtTimeStep(x) - actualSupplyEnergy;
							if(neededEnergy <= 0)continue; //Producer or No EnergyNeeded
							if(neededEnergy <= currentProduction)
							{
								hO.setCurrentSupply(neededEnergy+actualSupplyEnergy);
								currentProduction -= neededEnergy;
							}else
							{
								hO.setCurrentSupply(currentProduction+actualSupplyEnergy);
								currentProduction = 0;
								break;
							}
						}
						
						
					}
				}
				
			}
			//Visualize the Color
			for(HolonObject hO : singleSubNet.getObjects())
			{
				float neededEnergy = -hO.getCurrentEnergyAtTimeStep(x); // convert negative energy in positive for calculations
				if(neededEnergy < 0)
				{
					hO.setState(HolonObject.PRODUCER);
				}
				else if(neededEnergy > 0)
				{
					float currentSupply = hO.getCurrentSupply() ;
					if(currentSupply > neededEnergy)
					{
						hO.setState(HolonObject.OVER_SUPPLIED);
					}else if (currentSupply ==  neededEnergy)
					{
						hO.setState(HolonObject.SUPPLIED);
					}else if (currentSupply <  neededEnergy)
					{
						float minEnergy = -hO.getMinEnergy(x);
						if(currentSupply >= minEnergy || hO.getSelfMadeEnergy(x)  >= minEnergy )
						{
							hO.setState(HolonObject.PARTIALLY_SUPPLIED);
						}else
						{
							hO.setState(HolonObject.NOT_SUPPLIED);
						}
					}
				}
				else if(neededEnergy == 0)
				{
					hO.setState(HolonObject.NO_ENERGY);
				}
			}
		}
		canvas.repaint();
		flexPane.recalculate();
	}

	/**
	 * add all battries.getOut() from a list of battries and return them
	 * @param aL a List of HolonBattries likely from subnet.getBatteries()
	 * @param x TimeStep
	 * @return 
	 * 
	 */
	private float GetOutAllBatteries(ArrayList<HolonBattery> aL, int x)
	{
		float OutEnergy = 0;
		for(HolonBattery hB : aL)
		{
			//System.out.println("Iteration: "+ x +"OutBattery: "+ hB.getOutAtTimeStep(x-1));
			OutEnergy += hB.getOutAtTimeStep(x-1);
		}
		//System.out.println("Iteration: "+ x +"GetOutAllBatteries: "+ OutEnergy);
		return OutEnergy;
	}
	/**
	 * search for all flexible devices in the network and turn them on, until
	 * energy surplus = 0 or all devices have been examined.
	 *
	 * This code could be compressed (cases inside over- and underproduction are
	 * the same), but we decided that it is better readable this way
	 *
	 * @param subNet
	 *            the subnet
	 * @param energySurplus
	 *            the current surplus of energy
	 */
	private void turnOnFlexibleDevices(SubNet subNet, float energySurplus,
			int timestep) {
		for (HolonObject holonOb : subNet.getObjects()) {
			for (HolonElement holonEl : holonOb.getElements()) {

				// if this element is flexible and active (can be considered for
				// calculations)
				if (holonEl.isFlexible() && holonEl.isActive()) {
					float energyAvailableSingle = holonEl
							.getEnergyAtTimeStep(timestep);
					float energyAvailableMultiple = energyAvailableSingle
							* holonEl.getAmount();

					// ------------- flexible consumer / OVERPRODUCTION
					// -------------
					if (energyAvailableMultiple < 0 && energySurplus > 0) {

						// if there is more wasted energy than energy that this
						// device can give, give all energy available
						if (Math.abs(energyAvailableMultiple) <= Math
								.abs(energySurplus)) {
							energySurplus += energyAvailableMultiple;
							// set the new energy consumption to the maximum
							holonEl.setEnergyPerElement(energyAvailableSingle);
							flexDevicesTurnedOnThisTurn.put(holonEl,
									energyAvailableMultiple);
						}
						// else: we just need to turn on part of the flexible
						// energy available
						else {
							float energyNeeded = -energySurplus;
							energySurplus += energyNeeded; // should give 0, but
															// was kept this was
															// for consistency
							// the energy needed divided through the amount of
							// elements
							holonEl.setEnergyPerElement(energyNeeded
									/ holonEl.getAmount());
							flexDevicesTurnedOnThisTurn.put(holonEl,
									energyNeeded);
						}
					}

					// ------------- flexible producer / UNDERPRODUCTION
					// -------------
					else if (energyAvailableMultiple > 0 && energySurplus < 0) {

						// if there is more energy needed than this device can
						// give, give all the energy available
						if (Math.abs(energyAvailableMultiple) <= Math
								.abs(energySurplus)) {
							energySurplus += energyAvailableMultiple;
							// set the new energy consumption to the maximum
							holonEl.setEnergyPerElement(energyAvailableSingle);
							flexDevicesTurnedOnThisTurn.put(holonEl,
									energyAvailableMultiple);
						}
						// else: we just need to turn on part of the flexible
						// energy available
						else {
							float energyNeeded = -energySurplus;
							int i = 0;
							energySurplus += energyNeeded; // should give 0, but
															// was kept this was
															// for consistency
							// the energy needed divided through the amount of
							// elements
							holonEl.setEnergyPerElement(energyNeeded
									/ holonEl.getAmount());
							flexDevicesTurnedOnThisTurn.put(holonEl,
									energyNeeded);
						}

					}
				}

				if (energySurplus == 0) {
					break;
				}
			}

			if (energySurplus == 0) {
				break;
			}
		}
	}

	/**
	 * Set Flow Simulation.
	 *
	 * @param sN
	 *            Subnet
	 */
	private void setFlowSimulation(SubNet sN) {
		ArrayList<AbstractCpsObject> producers = new ArrayList<>();
		AbstractCpsObject tmp = null;
		tagTable = new HashMap<>();
		// traverse all objects in this subnet
		for (HolonObject hl : sN.getObjects()) {
			float energy = hl.getCurrentEnergyAtTimeStep(timeStep);
			// if their production is higher than their consumption
			if (energy > 0) {
				tagTable.put(hl.getId(), energy);
				hl.addTag(hl.getId());
				for (CpsEdge edge : hl.getConnections()) {
					if (edge.isWorking()) {
						// set other end of edge as tmp-object
						// and add this end to the other end's tag-list
						AbstractCpsObject a = edge.getA();
						AbstractCpsObject b = edge.getB();
						if (a.getId() == hl.getId()) {
							b.addTag(hl.getId());
							tmp = b;
						}
						if (b.getId() == hl.getId()) {
							a.addTag(hl.getId());
							tmp = a;
						}

						edge.setFlow(edge.getFlow() + energy);
						edge.calculateState();
						edge.addTag(hl.getId());
						if (edge.isWorking() && !producers.contains(tmp)) {
							if (tmp instanceof HolonSwitch) {
								if (((HolonSwitch) tmp).getState(timeStep)) {
									producers.add(tmp);
								}
							} else if (!(tmp instanceof CpsUpperNode)) {
								producers.add(tmp);
							}
						}
					}
				}
			}
		}
		setFlowSimRec(producers, 0);
	}

	/**
	 * Set Flow Simulation Rec.
	 *
	 * @param nodes
	 *            the nodes
	 * @param iter
	 *            the Iteration
	 */
	private void setFlowSimRec(ArrayList<AbstractCpsObject> nodes, int iter) {
		ArrayList<AbstractCpsObject> newNodes = new ArrayList<>();
		ArrayList<CpsEdge> changedEdges = new ArrayList<>();
		AbstractCpsObject tmp;
		if (nodes.size() != 0) {
			for (AbstractCpsObject cps : nodes) {
				// check whether the cps is in a legit state if it is a switch
				if (legitState(cps)) {
					for (CpsEdge edge : cps.getConnections()) {
						// is edge working
						// and does the edge's tag-list not (yet) contain all
						// tags of the cps
						if (edge.isWorking()
								&& (!(edge.containsTags(edge.getTags(),
										cps.getTag())))) {
							if (edge.getA().getId() == cps.getId()) {
								tmp = edge.getB();
							} else {
								tmp = edge.getA();
							}
							for (Integer tag : cps.getTag()) {
								if (!(edge.getTags().contains(tag))
										&& !(edge.getPseudoTags().contains(tag))) {
									edge.setFlow(edge.getFlow()
											+ tagTable.get(tag));
									edge.addTag(tag);
								}
							}
							// uppernodes do not spread energy
							if (!(tmp instanceof CpsUpperNode)) {
								for (Integer tag : tmp.getTag()) {
									if (!(edge.getTags().contains(tag))
											&& tagTable.get(tag) != null
											&& !(edge.getPseudoTags()
													.contains(tag))) {
										edge.setFlow(edge.getFlow()
												+ tagTable.get(tag));
										edge.addPseudoTag(tag);
										changedEdges.add(edge);
									}
								}
							}
							edge.calculateState();
							if (edge.isWorking()
									&& !(tmp instanceof CpsUpperNode)) {
								tmp.addAllPseudoTags(cps.getTag());
								if (!newNodes.contains(tmp)) {
									newNodes.add(tmp);
								}
							}
						}
					}
				}
			}
			setPseudoTags(newNodes, changedEdges);
			setFlowSimRec(newNodes, iter + 1);
		}
	}

	/**
	 * Set the Pseudo Tags.
	 *
	 * @param nodes
	 *            Array of AbstractCpsObjects
	 */
	private void setPseudoTags(ArrayList<AbstractCpsObject> nodes,
			ArrayList<CpsEdge> edges) {
		for (AbstractCpsObject node : nodes) {
			node.recalculateTags();
			node.setPseudoTags(new ArrayList<>());
		}
		for (CpsEdge edge : edges) {
			edge.recalculateTags();
			edge.setPseudoTag(new ArrayList<>());
		}
	}

	/**
	 * Reset the Connection.
	 *
	 * @param cps
	 *            CpsObject
	 * @param visitedObj
	 *            the visited Objects
	 * @param visitedEdges
	 *            the visited Edges
	 */
	private void resetConnections(AbstractCpsObject cps,
			ArrayList<Integer> visitedObj, ArrayList<CpsEdge> visitedEdges) {
		visitedObj.add(cps.getId());
		cps.resetTags();
		for (CpsEdge e : cps.getConnections()) {
			if (!(visitedEdges.contains(e))) {
				e.setFlow(0);
				e.calculateState();
				e.setTags(new ArrayList<>());
				visitedEdges.add(e);
				if (!(visitedObj.contains(e.getA().getId()))) {
					resetConnections(e.getA(), visitedObj, visitedEdges);
					e.getA().resetTags();
				}
				if (!(visitedObj.contains(e.getB().getId()))) {
					resetConnections(e.getB(), visitedObj, visitedEdges);
					e.getB().resetTags();
				}
			}
		}
	}

	/**
	 * calculates the energy of either all producers or consumers. Flexible
	 * devices are filtered out
	 *
	 * @param type
	 *            Type
	 * @param sN
	 *            Subnet
	 * @param x
	 *            Integer
	 * @return The Energy
	 */
	private float calculateEnergyWithoutFlexDevices(String type, SubNet sN,
			int x) {
		float energy = 0;
		for (HolonObject hl : sN.getObjects()) {
			float currentEnergyWithoutFlexibles = hl
					.getCurrentEnergyAtTimeStepWithoutFlexiblesAndResetFlexibles(x);

			if (type.equals("prod")) {
				if (currentEnergyWithoutFlexibles > 0) {
					energy += currentEnergyWithoutFlexibles;
					hl.setState(HolonObject.PRODUCER);
				}
			}
			if (type.equals("cons")) {
				if (currentEnergyWithoutFlexibles < 0) {
					energy += currentEnergyWithoutFlexibles;
					hl.setState(HolonObject.NOT_SUPPLIED);
				}
			}
			if (currentEnergyWithoutFlexibles == 0) {
				hl.setState(HolonObject.NO_ENERGY);
			}
		}
		return energy;
	}

	/**
	 * calculates the energy of either all producers or consumers. Flexible
	 * devices are filtered out
	 *
	 * @param type
	 *            Type
	 * @param sN
	 *            Subnet
	 * @param x
	 *            Integer
	 * @return The Energy
	 */
	private float calculateEnergyWithFlexDevices(String type, SubNet sN, int x) {
		float energy = 0;
		for (HolonObject hl : sN.getObjects()) {
			float currentEnergy = hl.getCurrentEnergyAtTimeStep(x);

			if (type.equals("prod")) {
				if (currentEnergy > 0) {
					energy += currentEnergy;
					hl.setState(HolonObject.PRODUCER);
				}
			}
			if (type.equals("cons")) {
				if (currentEnergy < 0) {
					energy = energy + currentEnergy;
					hl.setState(HolonObject.NOT_SUPPLIED);
				}
			}
			if (currentEnergy == 0) {
				hl.setState(HolonObject.NO_ENERGY);
			}
		}
		return energy;
	}

	/**
	 * Calculate the Minimum Energy of a Subnet.
	 *
	 * @param sN
	 *            Subnet
	 * @param x
	 *            Integer
	 * @return the Calculated minimum Energy of a Subnet
	 */
	private float calculateMinimumEnergy(SubNet sN, int x) {
		float minimummConsumptionSubnet = 0;
		for (HolonObject hl : sN.getObjects()) {
			float minElement = 0;
			// Search for a activ element
			for (HolonElement he : hl.getElements()) {
				if (he.isActive()) {
					float overallEnergy = he.getOverallEnergyAtTimeStep(x);
					if (overallEnergy < 0) {
						// Is a consumer
						minElement = overallEnergy;
					}
				}
			}
			for (HolonElement he : hl.getElements()) {
				if (he.isActive()) {
					float overallEnergy = he.getOverallEnergyAtTimeStep(x);

					if (minElement < overallEnergy && overallEnergy < 0) {
						// is a smaller consumer
						minElement = overallEnergy;
					}
				}
			}
			minimummConsumptionSubnet += minElement;
		}
		System.out.println("MinimumEnergy = "+ minimummConsumptionSubnet);
		return minimummConsumptionSubnet;
	}

	/**
	 * generates all subNets from all objectsToHandle.
	 */
	private void searchForSubNets() {
		subNets = new ArrayList<>();
		brokenEdges.clear();
		boolean end = false;
		int i = 0;
		AbstractCpsObject cps;
		if (objectsToHandle.size() > 0) {
			while (!end) {
				cps = objectsToHandle.get(i);
				SubNet singleSubNet = new SubNet(new ArrayList<>(),
						new ArrayList<>(), new ArrayList<>(), new ArrayList<>());
				singleSubNet = buildSubNet(cps, new ArrayList<>(), singleSubNet);
				if (singleSubNet.getObjects().size() + singleSubNet.getBatteries().size() != 0 ) {
					subNets.add(singleSubNet);
				}
				if (0 == objectsToHandle.size()) {
					end = true;
				}
			}
		}
	}

	/**
	 * recursivly generates a subnet of all objects, that one specific object is
	 * connected to.
	 *
	 * @param cps
	 *            AbstractCpsObject
	 * @param visited
	 *            visited Array of Integer
	 * @param sN
	 *            Subnets
	 * @return Subnet
	 */
	private SubNet buildSubNet(AbstractCpsObject cps,
			ArrayList<Integer> visited, SubNet sN) {
		visited.add(cps.getId());
		if (cps instanceof HolonObject) {
			sN.getObjects().add((HolonObject) cps);
		}
		if (cps instanceof HolonSwitch) {
			sN.getSwitches().add((HolonSwitch) cps);
		}
		if (cps instanceof HolonBattery) {
			sN.getBatteries().add((HolonBattery) cps);
		}
		removeFromToHandle(cps.getId());
		AbstractCpsObject a;
		AbstractCpsObject b;
		for (CpsEdge edge : cps.getConnections()) {
			if (edge.isWorking()) {
				a = edge.getA();
				b = edge.getB();
				if (!(cps instanceof HolonSwitch)) {
					if (!(sN.getEdges().contains(edge))) {
						sN.getEdges().add(edge);
					}
				}
				if (cps instanceof HolonSwitch
						&& ((HolonSwitch) cps).getState(timeStep)) {
					if (!(sN.getEdges().contains(edge))) {
						sN.getEdges().add(edge);
					}
				}
				if (!visited.contains(a.getId()) && legitState(cps)
						&& !(a instanceof CpsUpperNode)) {
					sN = buildSubNet(a, visited, sN);
				}
				if (!visited.contains(b.getId()) && legitState(cps)
						&& !(b instanceof CpsUpperNode)) {
					sN = buildSubNet(b, visited, sN);
				}
				if (a instanceof CpsUpperNode && a.getId() != cps.getId()) {
					edge.setConnected(CpsEdge.CON_UPPER_NODE_NOT_INSIDE);
					checkForConnectedStates(b, (CpsUpperNode) a, edge);
				}
				if (b instanceof CpsUpperNode && b.getId() != cps.getId()) {
					edge.setConnected(CpsEdge.CON_UPPER_NODE_NOT_INSIDE);
					checkForConnectedStates(a, (CpsUpperNode) b, edge);
				}
			} else {
				brokenEdges.add(edge);
			}
		}
		return sN;
	}

	/**
	 * is the Switch in a legitimate State.
	 *
	 * @param current
	 *            AbstractCpsObject
	 * @return boolean
	 */
	private boolean legitState(AbstractCpsObject current) {
		return !(current instanceof HolonSwitch)
				|| ((HolonSwitch) current).getState(timeStep);
	}

	// /**
	// * ensures that objectsToHandle only contains HolonObjects.
	// */
	// public void cleanObjectsToHandle() {
	// for (int i = 0; i < objectsToHandle.size(); i++) {
	// if (!(objectsToHandle.get(i) instanceof HolonObject)) {
	// objectsToHandle.remove(i);
	// }
	// }
	// }

	/**
	 * removes an Object that already has been handled.
	 *
	 * @param id
	 *            the Object ID
	 */
	private void removeFromToHandle(int id) {
		for (int i = 0; i < objectsToHandle.size(); i++) {
			if (objectsToHandle.get(i).getId() == id) {
				objectsToHandle.remove(i);
			}
		}
	}

	/**
	 * copies the data of an array of Objects.
	 *
	 * @param toCopy
	 *            the ArrayList of CpsObjects co Copy
	 */
	private void copyObjects(ArrayList<AbstractCpsObject> toCopy) {
		for (AbstractCpsObject cps : toCopy) {
			if (cps instanceof CpsUpperNode) {
				copyObjects(((CpsUpperNode) cps).getNodes());
			} else {
				objectsToHandle.add(cps);
			}
		}
	}

	/**
	 * Prints the Components auf all subnets.
	 */
	private void printNetsToConsole() {
		for (int i = 0; i < subNets.size(); i++) {
			SubNet subNet = subNets.get(i);
			System.out.println("SUBNET NR:" + i);
			subNet.toString(timeStep);
		}
	}

	/**
	 * Set the Canvas.
	 *
	 * @param can
	 *            the Canvas
	 */
	public void setCanvas(MyCanvas can) {
		canvas = can;
	}

	/**
	 * Reset all Data to the current state of the Model.
	 */
	public void reset() {
		objectsToHandle = new ArrayList<>();
		copyObjects(model.getObjectsOnCanvas());
		flexDevicesTurnedOnThisTurn = new HashMap<>();
	}

	/**
	 * Resets the State of all Edges
	 */
	private void resetEdges() {
		for (CpsEdge e : brokenEdges) {
			e.setWorkingState(true);
		}
	}

	/**
	 * Resets the State for the whole Simulation Model
	 */
	void resetSimulation() {
		reset();
		resetEdges();
	}

	/**
	 * Get all Subnets.
	 *
	 * @return all Subnets
	 */
	public ArrayList<SubNet> getSubNets() {
		return subNets;
	}

	/**
	 * Get broken Edges
	 */
	// public ArrayList<CpsEdge> getBrokenEdges() {
	// return brokenEdges;
	// }

	/**
	 * checks whether a given object is connected to an object inside the
	 * upperNode. if yes, the state for the edge is changed in "connected" or
	 * "not connected"
	 */
	private void checkForConnectedStates(AbstractCpsObject cps,
			CpsUpperNode cUNode, CpsEdge theEdge) {
		AbstractCpsObject tmp;
		for (CpsEdge edge : cps.getConnections()) {
			if (edge.getA().getId() == cps.getId()) {
				tmp = edge.getB();
			} else {
				tmp = edge.getA();
			}
			if (cUNode.getNodes().contains(tmp)) {
				if (tmp instanceof CpsUpperNode) {
					checkForConnectedStates(cps, (CpsUpperNode) tmp, theEdge);
				} else {
					theEdge.setConnected(CpsEdge.CON_UPPER_NODE_AND_INSIDE);
					break;
				}
			}
		}
	}

	public FlexiblePane getFlexiblePane() {
		return flexPane;
	}

	void setFlexiblePane(FlexiblePane fp) {
		flexPane = fp;
	}

}