/*
* Copyright (c) 2015, 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.server.internal.remote.processor;
import com.google.common.reflect.TypeToken;
import com.google.dart.server.GetLibraryDependenciesConsumer;
import com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import org.dartlang.analysis.server.protocol.RequestError;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* Instances of {@code LibraryDependenciesProcessor} translate JSON result objects for a given
* {@link GetLibraryDependenciesConsumer}.
*
* @coverage dart.server.remote
*/
public class LibraryDependenciesProcessor extends ResultProcessor {
private static final Map<String, Map<String, List<String>>> EMPTY_MAP = Collections.<String, Map<String, List<String>>> emptyMap();
private static Map<String, Map<String, List<String>>> constructPackageMap(JsonElement jsonMap) {
if (jsonMap == null) {
return EMPTY_MAP;
}
return new Gson().fromJson(jsonMap, new TypeToken<Map<String, Map<String, List<String>>>>() {
}.getType());
}
private final GetLibraryDependenciesConsumer consumer;
public LibraryDependenciesProcessor(GetLibraryDependenciesConsumer consumer) {
this.consumer = consumer;
}
public void process(JsonObject resultObject, RequestError requestError) {
if (resultObject != null) {
try {
String[] libraries = constructStringArray(resultObject.get("libraries").getAsJsonArray());
Map<String, Map<String, List<String>>> packageMap = constructPackageMap(resultObject.get("packageMap"));
consumer.computedDependencies(libraries, packageMap);
} catch (Exception exception) {
// catch any exceptions in the formatting of this response
requestError = generateRequestError(exception);
}
}
if (requestError != null) {
consumer.onError(requestError);
}
}
}