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///////////////////////////////////////////////////////////////////////////////
//Copyright (C) 2014 Joliciel Informatique
//
//This file is part of Talismane.
//
//Talismane is free software: you can redistribute it and/or modify
//it under the terms of the GNU Affero General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.
//
//Talismane is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU Affero General Public License for more details.
//
//You should have received a copy of the GNU Affero General Public License
//along with Talismane.  If not, see .
//////////////////////////////////////////////////////////////////////////////
package com.joliciel.talismane.machineLearning.features;

import com.joliciel.talismane.TalismaneException;

/**
 * If the wrapped boolean feature returns null, will convert it to a false.
 * 
 * @author Assaf Urieli
 *
 */
public class NullToFalseFeature extends AbstractCachableFeatureimplements BooleanFeature {
  BooleanFeature wrappedFeature;

  public NullToFalseFeature(BooleanFeature feature1) {
    super();
    this.wrappedFeature = feature1;
    this.setName(feature1.getName() + "°");
  }

  @Override
  public FeatureResult checkInternal(T context, RuntimeEnvironment env) throws TalismaneException {
    FeatureResult featureResult = null;

    FeatureResult result1 = wrappedFeature.check(context, env);

    if (result1 != null) {
      featureResult = this.generateResult(result1.getOutcome());
    } else {
      featureResult = this.generateResult(false);
    }
    return featureResult;
  }

  public BooleanFeature getWrappedFeature() {
    return wrappedFeature;
  }

  public void setWrappedFeature(BooleanFeature wrappedFeature) {
    this.wrappedFeature = wrappedFeature;
  }

}