com.google.dart.server.internal.remote.processor.FindElementReferencesProcessor.java Source code

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Here is the source code for com.google.dart.server.internal.remote.processor.FindElementReferencesProcessor.java

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/*
 * Copyright (c) 2014, 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.dart.server.FindElementReferencesConsumer;
import com.google.gson.JsonObject;

import org.dartlang.analysis.server.protocol.Element;
import org.dartlang.analysis.server.protocol.RequestError;

/**
 * Instances of {@code FindElementReferencesProcessor} translate JSON result objects for a given
 * {@link FindElementReferencesConsumer}.
 * 
 * @coverage dart.server.remote
 */
public class FindElementReferencesProcessor extends ResultProcessor {

    private final FindElementReferencesConsumer consumer;

    public FindElementReferencesProcessor(FindElementReferencesConsumer consumer) {
        this.consumer = consumer;
    }

    public void process(JsonObject resultObject, RequestError requestError) {
        if (resultObject != null) {
            try {
                String searchId = resultObject.has("id") ? resultObject.get("id").getAsString() : null;
                Element element = resultObject.has("element")
                        ? Element.fromJson(resultObject.get("element").getAsJsonObject())
                        : null;
                consumer.computedElementReferences(searchId, element);
            } catch (Exception exception) {
                // catch any exceptions in the formatting of this response
                requestError = generateRequestError(exception);
            }
        }
        if (requestError != null) {
            consumer.onError(requestError);
        }
    }
}