/*

  * This software is licensed under the Apache License, Version 2.0

  * (the "License") agreement; 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 net.admin4j.timer;

 import java.util.ArrayList;

 import java.util.Arrays;

 import java.util.List;

 import java.util.Map;

 import java.util.Set;

 import net.admin4j.deps.commons.lang3.Validate;

 import net.admin4j.vo.DataMeasurementSummaryVO;

 /**

  * Used to start task timings and obtain a TaskTimer.

  * @author D. Ashmore

  * @since 1.0

  */

 public class TaskTimerFactory {

     /**

      * Will return a started timer using the requested label.

      * 

      * <p>By default, timers are configured with a SmmaryDataMeasure and RollingTimePeriodDataMeasure.</p>

      * 

      * @see SummaryDataMeasure

      * @see RollingNbrObservationsDataMeasure

      * @param label

      * @param dataMeasures

      * @return

      * @since 1.0

      */

     public static TaskTimer start(String label, DataMeasure...dataMeasures ) {

         TaskTimer timer = TaskTimerRegistry.findTaskTimer(label);

         if (timer != null)  {

             timer.start();

             return timer;

         }

         List<DataMeasure> list = new ArrayList<DataMeasure>();

         if (dataMeasures.length == 0) {

             list.add(new SummaryDataMeasure(System.currentTimeMillis()));

             list.add(new RollingNbrObservationsDataMeasure());

         }

         else list.addAll(Arrays.asList(dataMeasures));

         timer = new BasicTaskTimer(label, list);

         TaskTimerRegistry.register(timer);

         timer.start();

         return timer;

     }

     public static void delete(String label) {

         Validate.notEmpty(label,"Null or blank label not allowed.");

         TaskTimerRegistry.delete(label);

     }

     protected static void clearAll() {

         TaskTimerRegistry.clearAll();

     }

     public static Map<String,Set<DataMeasurementSummaryVO>> getDataSummaryMap() {

         return TaskTimerRegistry.getDataSummaryMap();

     }

 }