plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/telemetry/InspectionGadgetsTelemetry.java

/*
 * Copyright 2003-2010 Dave Griffith, Bas Leijdekkers
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * 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.siyeh.ig.telemetry;

import org.jetbrains.annotations.NotNull;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;

public class InspectionGadgetsTelemetry {
  private static final InspectionGadgetsTelemetry telemetry = new InspectionGadgetsTelemetry();
  private static volatile boolean telemetryEnabled = false;

  private final ConcurrentHashMap<String, InspectionRunTime> inspectionRunTimes =
    new ConcurrentHashMap<String, InspectionRunTime>();

  public List<InspectionRunTime> buildList() {
    if (inspectionRunTimes.isEmpty()) {
      return Collections.emptyList();
    }
    return new ArrayList<InspectionRunTime>(inspectionRunTimes.values());
  }

  public void reportRun(String inspectionID, long runTime) {
    InspectionRunTime inspectionRunTime =
      inspectionRunTimes.get(inspectionID);
    if (inspectionRunTime == null) {
      inspectionRunTime = new InspectionRunTime(inspectionID);
      final InspectionRunTime oldValue =
        inspectionRunTimes.putIfAbsent(inspectionID,
                                       inspectionRunTime);
      if (oldValue != null) {
        inspectionRunTime = oldValue;
      }
    }
    inspectionRunTime.addRunTime(runTime);
  }

  public void reset() {
    inspectionRunTimes.clear();
  }

  public static boolean isEnabled() {
    return telemetryEnabled;
  }

  public static void setEnabled(boolean enabled) {
    telemetryEnabled = enabled;
    if (telemetryEnabled) {
      telemetry.reset();
    }
  }

  @NotNull
  public static InspectionGadgetsTelemetry getInstance() {
    return telemetry;
  }
}