package org.apache.samoa.moa.evaluation;

/*
 * #%L
 * SAMOA
 * %%
 * Copyright (C) 2014 - 2015 Apache Software Foundation
 * %%
 * 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.
 * #L%
 */

import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;

import org.apache.samoa.moa.AbstractMOAObject;
import org.apache.samoa.moa.core.Measurement;
import org.apache.samoa.moa.learners.Learner;

/**
 * Class that stores an array of evaluation measurements.
 * 
 * @author Richard Kirkby (rkirkby@cs.waikato.ac.nz)
 * @version $Revision: 7 $
 */
public class LearningEvaluation extends AbstractMOAObject {

  private static final long serialVersionUID = 1L;

  protected Measurement[] measurements;

  public LearningEvaluation(Measurement[] measurements) {
    this.measurements = measurements.clone();
  }

  public LearningEvaluation(Measurement[] evaluationMeasurements,
      LearningPerformanceEvaluator cpe, Learner model) {
    List<Measurement> measurementList = new LinkedList<Measurement>();
    measurementList.addAll(Arrays.asList(evaluationMeasurements));
    measurementList.addAll(Arrays.asList(cpe.getPerformanceMeasurements()));
    measurementList.addAll(Arrays.asList(model.getModelMeasurements()));
    this.measurements = measurementList.toArray(new Measurement[measurementList.size()]);
  }

  public Measurement[] getMeasurements() {
    return this.measurements.clone();
  }

  @Override
  public void getDescription(StringBuilder sb, int indent) {
    Measurement.getMeasurementsDescription(this.measurements, sb, indent);
  }
}