/******************************************************************************* * Copyright (c) 2019 EclipseSource and others. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v. 2.0 which is available at * http://www.eclipse.org/legal/epl-2.0. * * This Source Code may also be made available under the following Secondary * Licenses when the conditions for such availability set forth in the Eclipse * Public License v. 2.0 are satisfied: GNU General Public License, version 2 * with the GNU Classpath Exception which is available at * https://www.gnu.org/software/classpath/license.html. * * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 ******************************************************************************/ package com.eclipsesource.glsp.example.modelserver.workflow.handler; import org.eclipse.emf.common.command.Command; import org.eclipse.emf.ecore.EClass; import org.eclipse.emf.edit.command.AddCommand; import com.eclipsesource.glsp.api.action.Action; import com.eclipsesource.glsp.api.action.kind.AbstractOperationAction; import com.eclipsesource.glsp.api.action.kind.CreateNodeOperationAction; import com.eclipsesource.glsp.api.model.GraphicalModelState; import com.eclipsesource.glsp.example.modelserver.workflow.model.ShapeUtil; import com.eclipsesource.glsp.example.modelserver.workflow.model.WorkflowFacade; import com.eclipsesource.glsp.example.modelserver.workflow.model.WorkflowModelServerAccess; import com.eclipsesource.glsp.example.modelserver.workflow.wfnotation.Shape; import com.eclipsesource.glsp.example.modelserver.workflow.wfnotation.WfnotationFactory; import com.eclipsesource.modelserver.coffee.model.coffee.CoffeeFactory; import com.eclipsesource.modelserver.coffee.model.coffee.CoffeePackage; import com.eclipsesource.modelserver.coffee.model.coffee.Node; import com.eclipsesource.modelserver.coffee.model.coffee.Workflow; public abstract class AbstractCreateNodeHandler implements ModelStateAwareOperationHandler { protected String type; private EClass eClass; public AbstractCreateNodeHandler(String type, EClass eClass) { super(); this.type = type; this.eClass = eClass; } @Override public Class<? extends Action> handlesActionType() { return CreateNodeOperationAction.class; } @Override public boolean handles(AbstractOperationAction action) { return ModelStateAwareOperationHandler.super.handles(action) ? ((CreateNodeOperationAction) action).getElementTypeId().equals(type) : false; } @Override public String getLabel(AbstractOperationAction action) { return "Create node"; } @Override public void doExecute(AbstractOperationAction action, GraphicalModelState modelState, WorkflowModelServerAccess modelAccess) throws Exception { CreateNodeOperationAction createNodeOperationAction = (CreateNodeOperationAction) action; WorkflowFacade workflowFacade = modelAccess.getWorkflowFacade(); Workflow workflow = workflowFacade.getCurrentWorkflow(); Node node = initializeNode((Node) CoffeeFactory.eINSTANCE.create(eClass), modelState); Command addCommand = AddCommand.create(modelAccess.getEditingDomain(), workflow, CoffeePackage.Literals.WORKFLOW__NODES, node); createDiagramElement(workflowFacade, workflow, node, createNodeOperationAction); if (!modelAccess.edit(addCommand).thenApply(res -> res.body()).get()) { throw new IllegalAccessError("Could not execute command: " + addCommand); } } protected void createDiagramElement(WorkflowFacade facace, Workflow workflow, Node node, CreateNodeOperationAction createNodeOperationAction) { workflow.getNodes().add(node); facace.findDiagram(workflow).ifPresent(diagram -> { Shape shape = WfnotationFactory.eINSTANCE.createShape(); shape.setSemanticElement(facace.createProxy(node)); shape.setPosition(ShapeUtil.point(createNodeOperationAction.getLocation())); diagram.getElements().add(shape); }); workflow.getNodes().remove(node); } protected Node initializeNode(Node node, GraphicalModelState modelState) { return node; } }