| /******************************************************************************* |
| * Copyright (c) 2013, 2018 CEA LIST and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * E.D.Willink (CEA LIST) - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ocl.xtext.completeocl.validation; |
| |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.log4j.Logger; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.common.util.WrappedException; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.ecore.resource.ResourceSet; |
| import org.eclipse.emf.validation.model.Category; |
| import org.eclipse.jdt.annotation.NonNull; |
| import org.eclipse.ocl.pivot.resource.CSResource; |
| import org.eclipse.ocl.pivot.uml.internal.validation.LoadableConstraintProvider; |
| import org.eclipse.ocl.pivot.utilities.EnvironmentFactory; |
| import org.eclipse.ocl.pivot.utilities.PivotUtil; |
| |
| /** |
| * A CompleteOCLConstraintParser supports registration and lazy resolution of |
| * the constraints defined in a Complete OCL document for use with the EMF.Validation |
| * framework. |
| * <p> |
| * Since the ConstraintProvider is not extensible, it is necessary to provide |
| * support using a ConstraintParser for the CompleteOCL language. |
| * <p> |
| * The redirection to e.g Loans.ocl should be defined as: |
| * <p> |
| <extension point="org.eclipse.emf.validation.constraintProviders" id="oclProvider"> |
| <category |
| name="Loans.ocl" |
| id="org.eclipse.ocl.xtext.completeocl.validation.CompleteOCL/Loans.ocl"> |
| Constraints determined by parsing Loans.ocl |
| </category> |
| <constraintProvider cache="true"> |
| <package namespaceUri="platform:/resource/Play/Loans.ecore"/> |
| |
| <constraints categories="org.eclipse.ocl.xtext.completeocl.validation.CompleteOCL/Loans.ocl"> |
| <constraint id="placeholder" lang="CompleteOCL" mode="Batch" statusCode="101" |
| name="=== The Loans.ocl Constraints ==="> |
| <description> |
| Placeholder for the actual constraints in Loans.ocl. |
| |
| The actual constraints are lazily loaded by the first validation run that uses them.</description> |
| <message>No message</message> |
| <param name="path" value="Loans.ocl"/> |
| </constraint> |
| </constraints> |
| </constraintProvider> |
| </extension> |
| * <p> |
| * and a binding to a client context as: |
| * <p> |
| <extension point="org.eclipse.emf.validation.constraintBindings"> |
| <clientContext id="oclProvider.context" default="false"> |
| <selector class="org.eclipse.ocl.xtext.completeocl.validation.CompleteOCLClientSelector"/> |
| </clientContext> |
| <binding |
| context="oclProvider.context" |
| category="org.eclipse.ocl.xtext.completeocl.validation.CompleteOCL/Loans.ocl"/> |
| </extension> |
| * <p> |
| * and a lazy constraint creation as: |
| * <p> |
| <extension point="org.eclipse.emf.validation.traversal"> |
| <traversalStrategy |
| class="org.eclipse.ocl.xtext.completeocl.validation.LazyLoadingTraversalStrategy" |
| namespaceUri="platform:/resource/Play/Loans.ecore"> |
| <eclass name="Model"/> |
| </traversalStrategy> |
| </extension> |
| */ |
| public class CompleteOCLConstraintProvider extends LoadableConstraintProvider |
| { |
| private static final Logger logger = Logger.getLogger(CompleteOCLConstraintProvider.class); |
| |
| public CompleteOCLConstraintProvider() { |
| System.out.println("new CompleteOCLConstraintProvider"); |
| } |
| |
| @Override |
| protected boolean load(@NonNull EnvironmentFactory environmentFactory, @NonNull URI uri, @NonNull Set<@NonNull Category> categories) { |
| ResourceSet resourceSet = environmentFactory.getResourceSet(); |
| CSResource xtextResource = null; |
| try { |
| xtextResource = (CSResource) resourceSet.getResource(uri, true); |
| } |
| catch (WrappedException e) { |
| logger.error("Failed to load '" + uri, e); |
| throw e; |
| } |
| List<Resource.Diagnostic> errors = xtextResource.getErrors(); |
| assert errors != null; |
| String message = PivotUtil.formatResourceDiagnostics(errors, "", "\n"); |
| if (message != null) { |
| logger.error("Failed to load '" + uri + message); |
| return false; |
| } |
| Resource asResource = xtextResource.getASResource(); |
| return installResource(asResource, categories); |
| } |
| } |