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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.be.components.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import org.apache.commons.lang3.tuple.ImmutablePair;
import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
import org.openecomp.sdc.be.datatypes.enums.OriginTypeEnum;
import org.openecomp.sdc.be.model.ComponentInstance;
import org.openecomp.sdc.be.model.RequirementCapabilityRelDef;
import org.openecomp.sdc.be.model.Resource;
import org.openecomp.sdc.exception.ResponseFormat;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import fj.data.Either;
/**
* This class holds the logic of arranging resource instance on the canvas for imported VF
*
* @author mshitrit
*
*/
@Component("compositionBusinessLogic")
public class CompositionBusinessLogic {
@Autowired
private ComponentInstanceBusinessLogic componentInstanceBusinessLogic;
private static final int VFC_CANVAS_ELEMENT_SIZE = 50;
private static final int CP_CANVAS_ELEMENT_SIZE = 21;
private static final int CANVAS_WIDTH = 1000;
private static final int CANVAS_HEIGHT = 700;
private static final int SPACE_BETWEEN_ELEMENTS = VFC_CANVAS_ELEMENT_SIZE * 4;
private static final double CP_RADIUS_FACTOR = 0.4;
enum RelativePosition {
LEFT, RIGHT, UP, DOWN
};
protected Either<List<ComponentInstance>, ResponseFormat> setPositionsForComponentInstances(Resource resource, String userId) {
Either<List<ComponentInstance>, ResponseFormat> result = Either.left(resource.getComponentInstances());
boolean isNotAllPositionsCalculated = resource.getComponentInstances() == null
|| resource.getComponentInstances().stream().filter(p -> (p.getPosX() == null || p.getPosX().isEmpty()) || (p.getPosY() == null || p.getPosY().isEmpty())).findAny().isPresent();
if (isNotAllPositionsCalculated && resource.getComponentInstances() != null) {
// Arrange Icons In Spiral Pattern
Map<ImmutablePair<Double, Double>, ComponentInstance> componentInstanceLocations = buildSpiralPatternPositioningForComponentInstances(resource);
// Set Relative Locations According to Canvas Size
componentInstanceLocations.entrySet().stream().forEach(e -> setRelativePosition(e));
// Update in DB
result = componentInstanceBusinessLogic.updateComponentInstance(ComponentTypeEnum.RESOURCE_PARAM_NAME, resource.getUniqueId(), userId, resource.getComponentInstances(), false, false);
}
return result;
}
private void setRelativePosition(Entry<ImmutablePair<Double, Double>, ComponentInstance> entry) {
int xCenter = CANVAS_WIDTH / 2;
int yCenter = CANVAS_HEIGHT / 2;
ImmutablePair<Double, Double> matrixPosition = entry.getKey();
ComponentInstance componentInstance = entry.getValue();
componentInstance.setPosX(calculateCompositionPosition(xCenter, matrixPosition.getLeft(), componentInstance));
componentInstance.setPosY(calculateCompositionPosition(yCenter, matrixPosition.getRight(), componentInstance));
}
private String calculateCompositionPosition(int center, double relativePosition, ComponentInstance componentInstance) {
final double topLeftCanvasPosition = center + relativePosition * CompositionBusinessLogic.SPACE_BETWEEN_ELEMENTS;
double offsetedCanvasPosition;
switch (componentInstance.getOriginType()) {
case CP:
offsetedCanvasPosition = topLeftCanvasPosition - CompositionBusinessLogic.CP_CANVAS_ELEMENT_SIZE / 2;
break;
case VL:
offsetedCanvasPosition = topLeftCanvasPosition - CompositionBusinessLogic.CP_CANVAS_ELEMENT_SIZE / 2;
break;
case VF:
offsetedCanvasPosition = topLeftCanvasPosition - CompositionBusinessLogic.VFC_CANVAS_ELEMENT_SIZE / 2;
break;
case VFC:
offsetedCanvasPosition = topLeftCanvasPosition - CompositionBusinessLogic.VFC_CANVAS_ELEMENT_SIZE / 2;
break;
case VFCMT:
offsetedCanvasPosition = topLeftCanvasPosition - CompositionBusinessLogic.VFC_CANVAS_ELEMENT_SIZE / 2;
break;
default:
offsetedCanvasPosition = topLeftCanvasPosition - CompositionBusinessLogic.VFC_CANVAS_ELEMENT_SIZE / 2;
break;
}
return String.valueOf(offsetedCanvasPosition);
}
protected Map<ImmutablePair<Double, Double>, ComponentInstance> buildSpiralPatternPositioningForComponentInstances(Resource resource) {
Map<ImmutablePair<Double, Double>, ComponentInstance> componentInstanceLocations = new HashMap<>();
List<ComponentInstance> componentInstances = new ArrayList<>();
componentInstances.addAll(resource.getComponentInstances());
Map<ComponentInstance, List<ComponentInstance>> connectededCps = getCpsConnectedToVFC(componentInstances, resource);
// Remove all cp that are connected from the list
componentInstances.removeAll(connectededCps.values().stream().flatMap(e -> e.stream()).collect(Collectors.toList()));
buildSpiralPatternForMajorComponents(componentInstanceLocations, componentInstances);
buildCirclePatternForCps(componentInstanceLocations, connectededCps);
return componentInstanceLocations;
}
protected void buildCirclePatternForCps(Map<ImmutablePair<Double, Double>, ComponentInstance> componentInstLocations, Map<ComponentInstance, List<ComponentInstance>> connectedCps) {
for (Entry<ComponentInstance, List<ComponentInstance>> vfcCpList : connectedCps.entrySet()) {
Entry<ImmutablePair<Double, Double>, ComponentInstance> vfcOfTheCps = componentInstLocations.entrySet().stream().filter(p -> p.getValue().getUniqueId().equals(vfcCpList.getKey().getUniqueId())).findAny().get();
buildCirclePatternForOneGroupOfCps(vfcOfTheCps.getKey(), vfcCpList.getValue(), componentInstLocations);
}
}
private void buildCirclePatternForOneGroupOfCps(ImmutablePair<Double, Double> vfcLocation, List<ComponentInstance> cpsGroup, Map<ImmutablePair<Double, Double>, ComponentInstance> componentInstLocations) {
final int numberOfCps = cpsGroup.size();
double angleBetweenCps = (!cpsGroup.isEmpty()) ? Math.toRadians(360) / numberOfCps : 0;
double currentAngle = 0;
Double xCenter = vfcLocation.getLeft();
Double yCenter = vfcLocation.getRight();
for (ComponentInstance currCp : cpsGroup) {
double cpXposition = xCenter + CompositionBusinessLogic.CP_RADIUS_FACTOR * Math.cos(currentAngle);
double cpYposition = yCenter + CompositionBusinessLogic.CP_RADIUS_FACTOR * Math.sin(currentAngle);
componentInstLocations.put(new ImmutablePair<Double, Double>(cpXposition, cpYposition), currCp);
currentAngle += angleBetweenCps;
}
}
private void buildSpiralPatternForMajorComponents(Map<ImmutablePair<Double, Double>, ComponentInstance> componentInstanceLocations, List<ComponentInstance> componentInstances) {
int elementsCounter = 0;
ImmutablePair<Double, Double> currPlacement;
ImmutablePair<Double, Double> prevPlacement = null;
RelativePosition relationToPrevElement = null;
for (ComponentInstance curr : componentInstances) {
elementsCounter++;
if (elementsCounter == 1) {
currPlacement = new ImmutablePair<Double, Double>(0D, 0D);
} else if (elementsCounter == 2) {
currPlacement = new ImmutablePair<Double, Double>(-1D, 0D);
relationToPrevElement = RelativePosition.LEFT;
} else {
relationToPrevElement = getRelativePositionForCurrentElement(componentInstanceLocations, relationToPrevElement, prevPlacement);
currPlacement = getRelativeElementLocation(prevPlacement, relationToPrevElement);
}
componentInstanceLocations.put(currPlacement, curr);
prevPlacement = currPlacement;
}
}
protected Map<ComponentInstance, List<ComponentInstance>> getCpsConnectedToVFC(List<ComponentInstance> allComponentInstances, Resource vf) {
Map<ComponentInstance, List<ComponentInstance>> vfcWithItsCps = new HashMap<>();
List<RequirementCapabilityRelDef> allRelations = vf.getComponentInstancesRelations();
for (ComponentInstance curr : allComponentInstances) {
// Filters Only CPs
if (curr.getOriginType() == OriginTypeEnum.CP) {
// List Of elements the CP is connected to
List<RequirementCapabilityRelDef> connectedToList = allRelations.stream().filter(p -> p.getFromNode().equals(curr.getUniqueId()) || p.getToNode().equals(curr.getUniqueId())).collect(Collectors.toList());
// Adds Only CPs Which are connected to VFC
filterCpConnectedToVFC(allComponentInstances, vfcWithItsCps, curr, connectedToList);
}
}
return vfcWithItsCps;
}
private void filterCpConnectedToVFC(List<ComponentInstance> allComponentInstances, Map<ComponentInstance, List<ComponentInstance>> vfcWithItsCps, ComponentInstance currCP, List<RequirementCapabilityRelDef> connectedToTheCPList) {
if (!connectedToTheCPList.isEmpty()) {
// Set Of Ids Of components Instances which are connected certain CP
Set<String> mateIds = connectedToTheCPList.stream().map(cpRelation -> cpRelation.getFromNode().equals(currCP.getUniqueId()) ? cpRelation.getToNode() : cpRelation.getFromNode()).collect(Collectors.toSet());
// Vfc Component instance Connected to the CP
Optional<ComponentInstance> optionalVfcConnectedToCP = allComponentInstances.stream().
// All instances connected to CP
filter(p -> mateIds.contains(p.getUniqueId())).
// Filter in only VFC connected to the CP
filter(p -> p.getOriginType() == OriginTypeEnum.VFC).findAny();
if (optionalVfcConnectedToCP.isPresent()) {
final ComponentInstance vfcWithCps = optionalVfcConnectedToCP.get();
if (vfcWithItsCps.containsKey(vfcWithCps)) {
vfcWithItsCps.get(vfcWithCps).add(currCP);
} else {
List<ComponentInstance> cpsList = new ArrayList<>();
cpsList.add(currCP);
vfcWithItsCps.put(vfcWithCps, cpsList);
}
}
}
}
private RelativePosition getRelativePositionForCurrentElement(Map<ImmutablePair<Double, Double>, ComponentInstance> componentInstanceLocations, RelativePosition relationToPrevElement, ImmutablePair<Double, Double> prevPlacement) {
switch (relationToPrevElement) {
case LEFT: {
boolean isOccupied = isAdjacentElementOccupied(prevPlacement, RelativePosition.UP, componentInstanceLocations);
relationToPrevElement = isOccupied ? RelativePosition.LEFT : RelativePosition.UP;
break;
}
case RIGHT: {
boolean isOccupied = isAdjacentElementOccupied(prevPlacement, RelativePosition.DOWN, componentInstanceLocations);
relationToPrevElement = isOccupied ? RelativePosition.RIGHT : RelativePosition.DOWN;
break;
}
case UP: {
boolean isOccupied = isAdjacentElementOccupied(prevPlacement, RelativePosition.RIGHT, componentInstanceLocations);
relationToPrevElement = isOccupied ? RelativePosition.UP : RelativePosition.RIGHT;
break;
}
case DOWN: {
boolean isOccupied = isAdjacentElementOccupied(prevPlacement, RelativePosition.LEFT, componentInstanceLocations);
relationToPrevElement = isOccupied ? RelativePosition.DOWN : RelativePosition.LEFT;
break;
}
default: {
throw new UnsupportedOperationException();
}
}
return relationToPrevElement;
}
private boolean isAdjacentElementOccupied(ImmutablePair<Double, Double> currElement, RelativePosition adjacentElementRelationToCurrElement, Map<ImmutablePair<Double, Double>, ComponentInstance> allElements) {
ImmutablePair<Double, Double> adjacentElementPosition = getRelativeElementLocation(currElement, adjacentElementRelationToCurrElement);
return allElements.containsKey(adjacentElementPosition);
}
private ImmutablePair<Double, Double> getRelativeElementLocation(ImmutablePair<Double, Double> currElement, RelativePosition relativeLocation) {
ImmutablePair<Double, Double> relativeElementPosition;
switch (relativeLocation) {
case LEFT: {
relativeElementPosition = new ImmutablePair<Double, Double>(currElement.getLeft() - 1, currElement.getRight());
break;
}
case RIGHT: {
relativeElementPosition = new ImmutablePair<Double, Double>(currElement.getLeft() + 1, currElement.getRight());
break;
}
case UP: {
relativeElementPosition = new ImmutablePair<Double, Double>(currElement.getLeft(), currElement.getRight() + 1);
break;
}
case DOWN: {
relativeElementPosition = new ImmutablePair<Double, Double>(currElement.getLeft(), currElement.getRight() - 1);
break;
}
default: {
throw new UnsupportedOperationException();
}
}
return relativeElementPosition;
}
}
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