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| 1 | +/******************************************************************************* |
| 2 | + * Copyright (c) 2026 Obeo. |
| 3 | + * This program and the accompanying materials |
| 4 | + * are made available under the terms of the Eclipse Public License v2.0 |
| 5 | + * which accompanies this distribution, and is available at |
| 6 | + * https://www.eclipse.org/legal/epl-2.0/ |
| 7 | + * |
| 8 | + * SPDX-License-Identifier: EPL-2.0 |
| 9 | + * |
| 10 | + * Contributors: |
| 11 | + * Obeo - initial API and implementation |
| 12 | + *******************************************************************************/ |
| 13 | +package org.eclipse.syson.standard.diagrams.view.edges; |
| 14 | + |
| 15 | +import java.util.ArrayList; |
| 16 | +import java.util.List; |
| 17 | +import java.util.Objects; |
| 18 | + |
| 19 | +import org.eclipse.sirius.components.view.builder.IViewDiagramElementFinder; |
| 20 | +import org.eclipse.sirius.components.view.builder.generated.view.ChangeContextBuilder; |
| 21 | +import org.eclipse.sirius.components.view.builder.providers.IColorProvider; |
| 22 | +import org.eclipse.sirius.components.view.diagram.ArrowStyle; |
| 23 | +import org.eclipse.sirius.components.view.diagram.DeleteTool; |
| 24 | +import org.eclipse.sirius.components.view.diagram.DiagramDescription; |
| 25 | +import org.eclipse.sirius.components.view.diagram.EdgeDescription; |
| 26 | +import org.eclipse.sirius.components.view.diagram.EdgeStyle; |
| 27 | +import org.eclipse.sirius.components.view.diagram.LineStyle; |
| 28 | +import org.eclipse.sirius.components.view.diagram.NodeDescription; |
| 29 | +import org.eclipse.sirius.components.view.diagram.SynchronizationPolicy; |
| 30 | +import org.eclipse.syson.diagram.common.view.DescriptionFinder; |
| 31 | +import org.eclipse.syson.diagram.common.view.edges.AbstractEdgeDescriptionProvider; |
| 32 | +import org.eclipse.syson.model.services.aql.ModelQueryAQLService; |
| 33 | +import org.eclipse.syson.services.DeleteService; |
| 34 | +import org.eclipse.syson.services.UtilService; |
| 35 | +import org.eclipse.syson.sysml.SysmlPackage; |
| 36 | +import org.eclipse.syson.sysml.metamodel.helper.LabelConstants; |
| 37 | +import org.eclipse.syson.util.AQLConstants; |
| 38 | +import org.eclipse.syson.util.IDescriptionNameGenerator; |
| 39 | +import org.eclipse.syson.util.ServiceMethod; |
| 40 | +import org.eclipse.syson.util.SysMLMetamodelHelper; |
| 41 | +import org.eclipse.syson.util.ViewConstants; |
| 42 | + |
| 43 | +/** |
| 44 | + * Used to create the edge description representing both the 'require' and 'assume' relationships between a {@link org.eclipse.syson.sysml.RequirementDefinition} or a {@link org.eclipse.syson.sysml.RequirementUsage} and a {@link org.eclipse.syson.sysml.ConstraintUsage}. |
| 45 | + * |
| 46 | + * @author gcoutable |
| 47 | + */ |
| 48 | +public class RequirementConstraintEdgeDescriptionProvider extends AbstractEdgeDescriptionProvider { |
| 49 | + |
| 50 | + private final IDescriptionNameGenerator descriptionNameGenerator; |
| 51 | + |
| 52 | + public RequirementConstraintEdgeDescriptionProvider(IColorProvider colorProvider, IDescriptionNameGenerator descriptionNameGenerator) { |
| 53 | + super(colorProvider); |
| 54 | + this.descriptionNameGenerator = Objects.requireNonNull(descriptionNameGenerator); |
| 55 | + } |
| 56 | + |
| 57 | + @Override |
| 58 | + protected ChangeContextBuilder getSourceReconnectToolBody() { |
| 59 | + return this.viewBuilderHelper.newChangeContext() |
| 60 | + .expression(""); |
| 61 | + } |
| 62 | + |
| 63 | + @Override |
| 64 | + protected ChangeContextBuilder getTargetReconnectToolBody() { |
| 65 | + return this.viewBuilderHelper.newChangeContext() |
| 66 | + .expression(""); |
| 67 | + } |
| 68 | + |
| 69 | + @Override |
| 70 | + public EdgeDescription create() { |
| 71 | + String domainType = SysMLMetamodelHelper.buildQualifiedName(SysmlPackage.eINSTANCE.getRequirementConstraintMembership()); |
| 72 | + return this.diagramBuilderHelper.newEdgeDescription() |
| 73 | + .domainType(domainType) |
| 74 | + .isDomainBasedEdge(true) |
| 75 | + .centerLabelExpression(this.getCenterLabelExpression()) |
| 76 | + .name(this.getName()) |
| 77 | + .semanticCandidatesExpression(ServiceMethod.of1(UtilService::getAllReachable).aqlSelf(domainType)) |
| 78 | + .sourceExpression(AQLConstants.AQL_SELF + "." + SysmlPackage.eINSTANCE.getRelationship_OwningRelatedElement().getName()) |
| 79 | + .style(this.createEdgeStyle()) |
| 80 | + .synchronizationPolicy(SynchronizationPolicy.SYNCHRONIZED) |
| 81 | + .targetExpression(ServiceMethod.of0(ModelQueryAQLService::getRequirementConstraintTarget).aqlSelf()) |
| 82 | + .build(); |
| 83 | + } |
| 84 | + |
| 85 | + @Override |
| 86 | + public void link(DiagramDescription diagramDescription, IViewDiagramElementFinder cache) { |
| 87 | + var optEdgeDescription = cache.getEdgeDescription(this.getName()); |
| 88 | + optEdgeDescription.ifPresent(edgeDescription -> { |
| 89 | + diagramDescription.getEdgeDescriptions().add(edgeDescription); |
| 90 | + |
| 91 | + var sourceNodes = this.getSourceNodes(cache); |
| 92 | + var targetNodes = this.getTargetNodes(cache); |
| 93 | + edgeDescription.getSourceDescriptions().addAll(sourceNodes); |
| 94 | + edgeDescription.getTargetDescriptions().addAll(targetNodes); |
| 95 | + |
| 96 | + edgeDescription.setPalette(this.createEdgePalette(cache)); |
| 97 | + }); |
| 98 | + } |
| 99 | + |
| 100 | + @Override |
| 101 | + protected DeleteTool getEdgeDeleteTool() { |
| 102 | + // Delete the referenced subsetting only. |
| 103 | + var referenceSubsetting = this.viewBuilderHelper.newChangeContext() |
| 104 | + .expression(AQLConstants.AQL_SELF + ".ownedConstraint.ownedRelationship->select(rel | rel.oclIsKindOf(sysml::ReferenceSubsetting))->first()") |
| 105 | + .children(this.viewBuilderHelper.newChangeContext() |
| 106 | + .expression(ServiceMethod.of0(DeleteService::deleteFromModel).aqlSelf()) |
| 107 | + .build() |
| 108 | + ); |
| 109 | + |
| 110 | + return this.diagramBuilderHelper.newDeleteTool() |
| 111 | + .name("Delete from Model") |
| 112 | + .body(referenceSubsetting.build()) |
| 113 | + .build(); |
| 114 | + } |
| 115 | + |
| 116 | + private String getCenterLabelExpression() { |
| 117 | + return AQLConstants.AQL + "if self.kind = sysml::RequirementConstraintKind.getEEnumLiteral('requirement').instance then '" + LabelConstants.OPEN_QUOTE + LabelConstants.REQUIRE + LabelConstants.CLOSE_QUOTE + "' else '" + LabelConstants.OPEN_QUOTE + LabelConstants.ASSUME + LabelConstants.CLOSE_QUOTE + "' endif"; |
| 118 | + } |
| 119 | + |
| 120 | + private String getName() { |
| 121 | + return this.descriptionNameGenerator.getEdgeName(SysmlPackage.eINSTANCE.getRequirementConstraintMembership()); |
| 122 | + } |
| 123 | + |
| 124 | + private EdgeStyle createEdgeStyle() { |
| 125 | + return this.diagramBuilderHelper.newEdgeStyle() |
| 126 | + .borderSize(0) |
| 127 | + .color(this.colorProvider.getColor(ViewConstants.DEFAULT_EDGE_COLOR)) |
| 128 | + .edgeWidth(1) |
| 129 | + .lineStyle(LineStyle.SOLID) |
| 130 | + .sourceArrowStyle(ArrowStyle.NONE) |
| 131 | + .targetArrowStyle(ArrowStyle.INPUT_ARROW) |
| 132 | + .build(); |
| 133 | + } |
| 134 | + |
| 135 | + private List<NodeDescription> getSourceNodes(IViewDiagramElementFinder cache) { |
| 136 | + List<NodeDescription> sources = new ArrayList<>(); |
| 137 | + var descriptionFinder = new DescriptionFinder(this.descriptionNameGenerator); |
| 138 | + sources.addAll(descriptionFinder.getConnectableNodeDescriptions(cache.getNodeDescriptions(), SysmlPackage.eINSTANCE.getRequirementUsage())); |
| 139 | + sources.addAll(descriptionFinder.getConnectableNodeDescriptions(cache.getNodeDescriptions(), SysmlPackage.eINSTANCE.getRequirementDefinition())); |
| 140 | + return sources; |
| 141 | + } |
| 142 | + |
| 143 | + private List<NodeDescription> getTargetNodes(IViewDiagramElementFinder cache) { |
| 144 | + return new DescriptionFinder(this.descriptionNameGenerator).getConnectableNodeDescriptions(cache.getNodeDescriptions(), SysmlPackage.eINSTANCE.getConstraintUsage()); |
| 145 | + } |
| 146 | +} |
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