| /******************************************************************************* |
| * Copyright (c) 2007, 2014 Borland Software Corporation and others. |
| * |
| * 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: |
| * Borland Software Corporation - initial API and implementation |
| * Christopher Gerking - bugs 289982, 326871, 427237 |
| *******************************************************************************/ |
| package org.eclipse.m2m.internal.qvt.oml.blackbox; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.eclipse.emf.common.util.Diagnostic; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EOperation; |
| import org.eclipse.m2m.internal.qvt.oml.NLS; |
| import org.eclipse.m2m.internal.qvt.oml.QvtPlugin; |
| import org.eclipse.m2m.internal.qvt.oml.ast.env.QvtOperationalEvaluationEnv; |
| import org.eclipse.m2m.internal.qvt.oml.ast.env.QvtOperationalModuleEnv; |
| import org.eclipse.m2m.internal.qvt.oml.ast.parser.ValidationMessages; |
| import org.eclipse.m2m.internal.qvt.oml.compiler.BlackboxUnitResolver; |
| import org.eclipse.m2m.internal.qvt.oml.evaluator.ModuleInstance; |
| import org.eclipse.m2m.internal.qvt.oml.evaluator.ModuleInstanceFactory; |
| import org.eclipse.m2m.internal.qvt.oml.expressions.ImperativeOperation; |
| import org.eclipse.m2m.internal.qvt.oml.expressions.Module; |
| import org.eclipse.m2m.internal.qvt.oml.expressions.OperationalTransformation; |
| import org.eclipse.m2m.internal.qvt.oml.stdlib.CallHandler; |
| import org.eclipse.m2m.internal.qvt.oml.stdlib.CallHandlerAdapter; |
| |
| public abstract class AbstractBlackboxProvider { |
| |
| private static final ResolutionContext GLOBAL_RESOLUTION_CONTEXT = new ResolutionContextImpl(BlackboxUnitResolver.GLOBAL_CONTEXT); |
| |
| public interface InstanceAdapterFactory { |
| Object createAdapter(EObject moduleInstance); |
| } |
| |
| protected AbstractBlackboxProvider() { |
| super(); |
| } |
| |
| protected CompilationUnit createCompilationUnit( |
| QvtOperationalModuleEnv moduleEnv) { |
| return createCompilationUnit(Collections.singletonList(moduleEnv)); |
| } |
| |
| protected CompilationUnit createCompilationUnit( |
| final List<QvtOperationalModuleEnv> loadedModules) { |
| return new CompilationUnit() { |
| public List<QvtOperationalModuleEnv> getElements() { |
| return Collections.unmodifiableList(loadedModules); |
| } |
| }; |
| } |
| |
| public static void setInstanceAdapterFactory(Module module, final InstanceAdapterFactory factory) { |
| ModuleInstanceFactory moduleInstanceFactory = (ModuleInstanceFactory) module |
| .getEFactoryInstance(); |
| moduleInstanceFactory |
| .addPostCreateHandler(new ModuleInstanceFactory.PostCreateHandler() { |
| public void created(ModuleInstance moduleInstance) { |
| Object adapterInstance = factory |
| .createAdapter(moduleInstance); |
| moduleInstance |
| .getAdapter(ModuleInstance.Internal.class) |
| .addAdapter(adapterInstance); |
| } |
| }); |
| } |
| |
| protected void setOperationHandler(EOperation operation, |
| final CallHandler handler, boolean adaptSource) { |
| CallHandler actualHandler = handler; |
| if (adaptSource) { |
| actualHandler = new CallHandler() { |
| public Object invoke(ModuleInstance module, Object source, |
| Object[] args, QvtOperationalEvaluationEnv evalEnv) { |
| return handler.invoke(module, source, args, evalEnv); |
| } |
| }; |
| } |
| |
| CallHandlerAdapter.attach(operation, actualHandler); |
| } |
| |
| public abstract Collection<AbstractCompilationUnitDescriptor> getModuleDescriptors( |
| ResolutionContext resolutionContext); |
| |
| public abstract AbstractCompilationUnitDescriptor getModuleDescriptor( |
| String qualifiedName, ResolutionContext resolutionContext); |
| |
| public abstract CompilationUnit loadCompilationUnit( |
| AbstractCompilationUnitDescriptor descriptor, |
| LoadContext loadContext) throws BlackboxException; |
| |
| public abstract void cleanup(); |
| |
| private void handleBlackboxException(BlackboxException e, AbstractCompilationUnitDescriptor descriptor) { |
| |
| Diagnostic diagnostic = e.getDiagnostic(); |
| if(diagnostic != null) { |
| QvtPlugin.logDiagnostic(diagnostic); |
| } else { |
| QvtPlugin.error(NLS.bind(ValidationMessages.FailedToLoadUnit, |
| new Object[] { descriptor.getQualifiedName() }), e); |
| } |
| |
| } |
| |
| public Collection<CallHandler> getBlackboxCallHandler(ImperativeOperation operation, QvtOperationalModuleEnv env) { |
| Collection<CallHandler> result = Collections.emptyList(); |
| for (AbstractCompilationUnitDescriptor d : getModuleDescriptors(GLOBAL_RESOLUTION_CONTEXT)) { |
| if (env.getImportedNativeLibs().isEmpty()) { |
| try { |
| loadCompilationUnit(d, new LoadContext(env.getEPackageRegistry())); |
| } catch (BlackboxException e) { |
| handleBlackboxException(e, d); |
| |
| continue; |
| } |
| } |
| else { |
| if (!env.getImportedNativeLibs().containsKey(d.getURI())) { |
| continue; |
| } |
| } |
| |
| Collection<CallHandler> handlers = d.getBlackboxCallHandler(operation, env); |
| if (!handlers.isEmpty()) { |
| if (result.isEmpty()) { |
| result = new LinkedList<CallHandler>(); |
| } |
| result.addAll(handlers); |
| } |
| } |
| return result; |
| } |
| |
| public Collection<CallHandler> getBlackboxCallHandler(OperationalTransformation transformation, QvtOperationalModuleEnv env) { |
| Collection<CallHandler> result = Collections.emptyList(); |
| for (AbstractCompilationUnitDescriptor d : getModuleDescriptors(GLOBAL_RESOLUTION_CONTEXT)) { |
| if (env.getImportedNativeLibs().isEmpty()) { |
| try { |
| loadCompilationUnit(d, new LoadContext(env.getEPackageRegistry())); |
| } catch (BlackboxException e) { |
| handleBlackboxException(e, d); |
| |
| continue; |
| } |
| } |
| else { |
| if (!env.getImportedNativeLibs().containsKey(d.getURI())) { |
| continue; |
| } |
| } |
| |
| Collection<CallHandler> handlers = d.getBlackboxCallHandler(transformation, env); |
| if (!handlers.isEmpty()) { |
| if (result.isEmpty()) { |
| result = new LinkedList<CallHandler>(); |
| } |
| result.addAll(handlers); |
| } |
| } |
| return result; |
| } |
| |
| } |