| /* |
| * Copyright (c) 2012 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.naming; |
| |
| import static org.eclipse.xtext.util.Strings.isEmpty; |
| |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.xtext.naming.IQualifiedNameConverter.DefaultImpl; |
| import org.eclipse.xtext.naming.*; |
| |
| import com.google.eclipse.protobuf.util.Strings; |
| import com.google.inject.Singleton; |
| |
| /** |
| * Provides support for multi-line qualified names. |
| * |
| * @author alruiz@google.com (Alex Ruiz) |
| */ |
| @Singleton public class ProtobufQualifiedNameConverter extends DefaultImpl { |
| private final Pattern delimiterPattern = Pattern.compile(delimiterPlusWhitespace()); |
| |
| private String delimiterPlusWhitespace() { |
| return "\\s*" + Pattern.quote(getDelimiter()) + "\\s*"; |
| } |
| |
| /** |
| * Splits the given {@code String} into segments and returns them as a <code>{@link QualifiedName}</code>. |
| * @param s the given input. |
| * @throws IllegalArgumentException if the input is empty or {@code null}. |
| */ |
| @Override public QualifiedName toQualifiedName(String s) { |
| if (isEmpty(s)) { |
| throw new IllegalArgumentException("Qualified name cannot be null or empty"); |
| } |
| String withoutLineBreaks = Strings.removeLineBreaksFrom(s); |
| String[] segments = delimiterPattern.split(withoutLineBreaks); |
| return QualifiedName.create(segments); |
| } |
| } |