| /* |
| * Copyright (c) 2012, the Dart project authors. |
| * |
| * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.dart.engine.source; |
| |
| import com.google.dart.engine.sdk.DartSdk; |
| |
| import java.net.URI; |
| |
| /** |
| * Instances of the class {@code DartUriResolver} resolve {@code dart} URI's. |
| * |
| * @coverage dart.engine.source |
| */ |
| public class DartUriResolver extends UriResolver { |
| /** |
| * Return {@code true} if the given URI is a {@code dart-ext:} URI. |
| * |
| * @param uriContent the textual representation of the URI being tested |
| * @return {@code true} if the given URI is a {@code dart-ext:} URI |
| */ |
| public static boolean isDartExtUri(String uriContent) { |
| return uriContent != null && uriContent.startsWith(DART_EXT_SCHEME); |
| } |
| |
| /** |
| * The Dart SDK against which URI's are to be resolved. |
| */ |
| private final DartSdk sdk; |
| |
| /** |
| * The name of the {@code dart} scheme. |
| */ |
| public static final String DART_SCHEME = "dart"; |
| |
| /** |
| * The prefix of a URI using the dart-ext scheme to reference a native code library. |
| */ |
| private static final String DART_EXT_SCHEME = "dart-ext:"; |
| |
| /** |
| * Return {@code true} if the given URI is a {@code dart:} URI. |
| * |
| * @param uri the URI being tested |
| * @return {@code true} if the given URI is a {@code dart:} URI |
| */ |
| public static boolean isDartUri(URI uri) { |
| return DART_SCHEME.equals(uri.getScheme()); |
| } |
| |
| /** |
| * Initialize a newly created resolver to resolve Dart URI's against the given platform within the |
| * given Dart SDK. |
| * |
| * @param sdk the Dart SDK against which URI's are to be resolved |
| */ |
| public DartUriResolver(DartSdk sdk) { |
| this.sdk = sdk; |
| } |
| |
| /** |
| * Return the {@link DartSdk} against which URIs are to be resolved. |
| * |
| * @return the {@link DartSdk} against which URIs are to be resolved. |
| */ |
| public DartSdk getDartSdk() { |
| return sdk; |
| } |
| |
| @Override |
| public Source resolveAbsolute(URI uri) { |
| if (!isDartUri(uri)) { |
| return null; |
| } |
| return sdk.mapDartUri(uri.toString()); |
| } |
| } |