| /* |
| * Copyright (c) 2011 Google Inc. |
| * |
| * 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 |
| */ |
| package com.google.eclipse.protobuf.scoping; |
| |
| import static java.util.Collections.emptySet; |
| |
| import static org.eclipse.xtext.resource.EObjectDescription.create; |
| |
| import static com.google.common.collect.Sets.newHashSet; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.xtext.naming.QualifiedName; |
| import org.eclipse.xtext.resource.IEObjectDescription; |
| |
| import com.google.eclipse.protobuf.model.util.TypeExtensions; |
| import com.google.eclipse.protobuf.naming.LocalNamesProvider; |
| import com.google.eclipse.protobuf.naming.OptionNamingStrategy; |
| import com.google.eclipse.protobuf.protobuf.Import; |
| import com.google.eclipse.protobuf.protobuf.Message; |
| import com.google.eclipse.protobuf.protobuf.MessageElement; |
| import com.google.eclipse.protobuf.protobuf.Package; |
| import com.google.eclipse.protobuf.protobuf.TypeExtension; |
| import com.google.inject.Inject; |
| |
| /** |
| * @author alruiz@google.com (Alex Ruiz) |
| */ |
| class CustomOptionFinderStrategy implements ModelElementFinder.FinderStrategy<OptionType> { |
| @Inject private LocalNamesProvider localNamesProvider; |
| @Inject private OptionNamingStrategy namingStrategy; |
| @Inject private QualifiedNameDescriptions qualifiedNamesDescriptions; |
| @Inject private TypeExtensions typeExtensions; |
| |
| @Override public Collection<IEObjectDescription> imported(Package fromImporter, Package fromImported, Object target, |
| OptionType optionType) { |
| if (!isExtendingOptionMessage(target, optionType)) { |
| return emptySet(); |
| } |
| Set<IEObjectDescription> descriptions = newHashSet(); |
| TypeExtension extension = (TypeExtension) target; |
| for (MessageElement e : extension.getElements()) { |
| descriptions.addAll(qualifiedNamesDescriptions.qualifiedNames(e, namingStrategy)); |
| } |
| return descriptions; |
| } |
| |
| @Override public Collection<IEObjectDescription> inDescriptor(Import anImport, OptionType criteria) { |
| return emptySet(); |
| } |
| |
| @Override public Collection<IEObjectDescription> local(Object target, OptionType optionType, int level) { |
| if (!isExtendingOptionMessage(target, optionType)) { |
| return emptySet(); |
| } |
| Set<IEObjectDescription> descriptions = newHashSet(); |
| TypeExtension extension = (TypeExtension) target; |
| for (MessageElement e : extension.getElements()) { |
| List<QualifiedName> names = localNamesProvider.localNames(e, namingStrategy); |
| int nameCount = names.size(); |
| for (int i = level; i < nameCount; i++) { |
| descriptions.add(create(names.get(i), e)); |
| } |
| descriptions.addAll(qualifiedNamesDescriptions.qualifiedNames(e, namingStrategy)); |
| } |
| return descriptions; |
| } |
| |
| private boolean isExtendingOptionMessage(Object o, OptionType optionType) { |
| if (!(o instanceof TypeExtension)) { |
| return false; |
| } |
| Message message = typeExtensions.messageFrom((TypeExtension) o); |
| if (message == null) { |
| return false; |
| } |
| String name = message.getName(); |
| return optionType.messageName().equals(name); |
| } |
| } |