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

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Here is the source code for com.google.dart.server.internal.remote.processor.GetRefactoringProcessor.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.GetRefactoringConsumer;
import com.google.dart.server.utilities.general.JsonUtilities;
import com.google.gson.JsonObject;

import org.dartlang.analysis.server.protocol.ExtractLocalVariableFeedback;
import org.dartlang.analysis.server.protocol.ExtractMethodFeedback;
import org.dartlang.analysis.server.protocol.InlineLocalVariableFeedback;
import org.dartlang.analysis.server.protocol.InlineMethodFeedback;
import org.dartlang.analysis.server.protocol.RefactoringFeedback;
import org.dartlang.analysis.server.protocol.RefactoringKind;
import org.dartlang.analysis.server.protocol.RefactoringProblem;
import org.dartlang.analysis.server.protocol.RenameFeedback;
import org.dartlang.analysis.server.protocol.RequestError;
import org.dartlang.analysis.server.protocol.SourceChange;

import java.util.List;
import java.util.Map;

/**
 * Instances of {@code GetRefactoringProcessor} translate JSON result objects for a given
 * {@link GetRefactoringConsumer}.
 * 
 * @coverage dart.server.remote
 */
public class GetRefactoringProcessor extends ResultProcessor {
    private final Map<String, String> requestToRefactoringKindMap;
    private final GetRefactoringConsumer consumer;

    public GetRefactoringProcessor(Map<String, String> requestToRefactoringKindMap,
            GetRefactoringConsumer consumer) {
        this.requestToRefactoringKindMap = requestToRefactoringKindMap;
        this.consumer = consumer;
    }

    public void process(String requestId, JsonObject resultObject, RequestError requestError) {
        if (resultObject != null) {
            try {
                // problems
                List<RefactoringProblem> initialProblems = getRefactoringProblems(resultObject, "initialProblems");
                List<RefactoringProblem> optionsProblems = getRefactoringProblems(resultObject, "optionsProblems");
                List<RefactoringProblem> finalProblems = getRefactoringProblems(resultObject, "finalProblems");

                // change
                SourceChange change = null;
                if (resultObject.has("change")) {
                    change = SourceChange.fromJson(resultObject.get("change").getAsJsonObject());
                }

                // potential edits
                List<String> potentialEdits = JsonUtilities
                        .decodeStringList(resultObject.get("potentialEdits") != null
                                ? resultObject.get("potentialEdits").getAsJsonArray()
                                : null);

                //
                // Compute all refactoring-kind specific "Feedback" and put them into the feedback map
                //
                RefactoringFeedback feedback = null;
                if (resultObject.has("feedback")) {
                    JsonObject feedbackObject = resultObject.get("feedback").getAsJsonObject();
                    String kind = requestToRefactoringKindMap.remove(requestId);
                    if (RefactoringKind.EXTRACT_LOCAL_VARIABLE.equals(kind)) {
                        feedback = ExtractLocalVariableFeedback.fromJson(feedbackObject);
                    } else if (RefactoringKind.EXTRACT_METHOD.equals(kind)) {
                        feedback = ExtractMethodFeedback.fromJson(feedbackObject);
                    } else if (RefactoringKind.INLINE_LOCAL_VARIABLE.equals(kind)) {
                        feedback = InlineLocalVariableFeedback.fromJson(feedbackObject);
                    } else if (RefactoringKind.INLINE_METHOD.equals(kind)) {
                        feedback = InlineMethodFeedback.fromJson(feedbackObject);
                    } else if (RefactoringKind.RENAME.equals(kind)) {
                        feedback = RenameFeedback.fromJson(feedbackObject);
                    }
                }
                consumer.computedRefactorings(initialProblems, optionsProblems, finalProblems, feedback, change,
                        potentialEdits);
            } catch (Exception exception) {
                // catch any exceptions in the formatting of this response
                requestError = generateRequestError(exception);
            }
        }
        if (requestError != null) {
            consumer.onError(requestError);
        }
    }

    private List<RefactoringProblem> getRefactoringProblems(JsonObject resultObject, String name) {
        return RefactoringProblem.fromJsonArray(resultObject.get(name).getAsJsonArray());
    }
}