| /** |
| * |
| * Copyright (c) 2010-2015, Andras Szabolcs Nagy, Abel Hegedus, Akos Horvath, Zoltan Ujhelyi and Daniel Varro |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * Contributors: |
| * Andras Szabolcs Nagy - initial API and implementation |
| * |
| */ |
| package org.eclipse.viatra.dse.examples.bpmn.patterns.util; |
| |
| import com.google.common.collect.Sets; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| import org.eclipse.emf.ecore.EClass; |
| import org.eclipse.viatra.dse.examples.bpmn.patterns.UnassignedTaskMatch; |
| import org.eclipse.viatra.dse.examples.bpmn.patterns.UnassignedTaskMatcher; |
| import org.eclipse.viatra.dse.examples.bpmn.patterns.util.VariantAllocatedToTaskQuerySpecification; |
| import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine; |
| import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery; |
| import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification; |
| import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey; |
| import org.eclipse.viatra.query.runtime.exception.ViatraQueryException; |
| import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.PBody; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.NegativePatternCall; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection; |
| import org.eclipse.viatra.query.runtime.matchers.psystem.queries.QueryInitializationException; |
| import org.eclipse.viatra.query.runtime.matchers.tuple.FlatTuple; |
| |
| /** |
| * A pattern-specific query specification that can instantiate UnassignedTaskMatcher in a type-safe way. |
| * |
| * @see UnassignedTaskMatcher |
| * @see UnassignedTaskMatch |
| * |
| */ |
| @SuppressWarnings("all") |
| public final class UnassignedTaskQuerySpecification extends BaseGeneratedEMFQuerySpecification<UnassignedTaskMatcher> { |
| private UnassignedTaskQuerySpecification() { |
| super(GeneratedPQuery.INSTANCE); |
| } |
| |
| /** |
| * @return the singleton instance of the query specification |
| * @throws ViatraQueryException if the pattern definition could not be loaded |
| * |
| */ |
| public static UnassignedTaskQuerySpecification instance() throws ViatraQueryException { |
| try{ |
| return LazyHolder.INSTANCE; |
| } catch (ExceptionInInitializerError err) { |
| throw processInitializerError(err); |
| } |
| } |
| |
| @Override |
| protected UnassignedTaskMatcher instantiate(final ViatraQueryEngine engine) throws ViatraQueryException { |
| return UnassignedTaskMatcher.on(engine); |
| } |
| |
| @Override |
| public UnassignedTaskMatcher instantiate() throws ViatraQueryException { |
| return UnassignedTaskMatcher.create(); |
| } |
| |
| @Override |
| public UnassignedTaskMatch newEmptyMatch() { |
| return UnassignedTaskMatch.newEmptyMatch(); |
| } |
| |
| @Override |
| public UnassignedTaskMatch newMatch(final Object... parameters) { |
| return UnassignedTaskMatch.newMatch((org.eclipse.viatra.dse.examples.simplifiedbpmn.Task) parameters[0]); |
| } |
| |
| /** |
| * Inner class allowing the singleton instance of {@link UnassignedTaskQuerySpecification} to be created |
| * <b>not</b> at the class load time of the outer class, |
| * but rather at the first call to {@link UnassignedTaskQuerySpecification#instance()}. |
| * |
| * <p> This workaround is required e.g. to support recursion. |
| * |
| */ |
| private static class LazyHolder { |
| private final static UnassignedTaskQuerySpecification INSTANCE = new UnassignedTaskQuerySpecification(); |
| |
| /** |
| * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned. |
| * This initialization order is required to support indirect recursion. |
| * |
| * <p> The static initializer is defined using a helper field to work around limitations of the code generator. |
| * |
| */ |
| private final static Object STATIC_INITIALIZER = ensureInitialized(); |
| |
| public static Object ensureInitialized() { |
| INSTANCE.ensureInitializedInternalSneaky(); |
| return null; |
| } |
| } |
| |
| private static class GeneratedPQuery extends BaseGeneratedEMFPQuery { |
| private final static UnassignedTaskQuerySpecification.GeneratedPQuery INSTANCE = new GeneratedPQuery(); |
| |
| private final PParameter parameter_pT = new PParameter("T", "org.eclipse.viatra.dse.examples.simplifiedbpmn.Task", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("org.eclipse.viatra.dse.examples.bpmn", "Task")), PParameterDirection.INOUT); |
| |
| private final List<PParameter> parameters = Arrays.asList(parameter_pT); |
| |
| @Override |
| public String getFullyQualifiedName() { |
| return "org.eclipse.viatra.dse.examples.bpmn.patterns.unassignedTask"; |
| } |
| |
| @Override |
| public List<String> getParameterNames() { |
| return Arrays.asList("T"); |
| } |
| |
| @Override |
| public List<PParameter> getParameters() { |
| return parameters; |
| } |
| |
| @Override |
| public Set<PBody> doGetContainedBodies() throws QueryInitializationException { |
| setEvaluationHints(new QueryEvaluationHint(null, Collections.<String,Object>emptyMap())); |
| Set<PBody> bodies = Sets.newLinkedHashSet(); |
| try { |
| { |
| PBody body = new PBody(this); |
| PVariable var_T = body.getOrCreateVariableByName("T"); |
| PVariable var___0_ = body.getOrCreateVariableByName("_<0>"); |
| new TypeConstraint(body, new FlatTuple(var_T), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("org.eclipse.viatra.dse.examples.bpmn", "Task"))); |
| body.setSymbolicParameters(Arrays.<ExportedParameter>asList( |
| new ExportedParameter(body, var_T, parameter_pT) |
| )); |
| // neg find variantAllocatedToTask(T, _) |
| new NegativePatternCall(body, new FlatTuple(var_T, var___0_), VariantAllocatedToTaskQuerySpecification.instance().getInternalQueryRepresentation()); |
| bodies.add(body); |
| } |
| // to silence compiler error |
| if (false) throw new ViatraQueryException("Never", "happens"); |
| } catch (ViatraQueryException ex) { |
| throw processDependencyException(ex); |
| } |
| return bodies; |
| } |
| } |
| } |