org.jpmml.rattle.visitors.ScoreDistributionCleaner.java Source code

Introduction

Here is the source code for org.jpmml.rattle.visitors.ScoreDistributionCleaner.java

Source

/*
 * Copyright (c) 2015 Villu Ruusmann
 *
 * This file is part of JPMML-Evaluator
 *
 * JPMML-Evaluator 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.
 *
 * JPMML-Evaluator 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 JPMML-Evaluator.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.jpmml.rattle.visitors;

import java.util.Deque;
import java.util.List;

import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;
import org.dmg.pmml.MiningFunction;
import org.dmg.pmml.PMMLObject;
import org.dmg.pmml.ScoreDistribution;
import org.dmg.pmml.VisitorAction;
import org.dmg.pmml.tree.Node;
import org.dmg.pmml.tree.TreeModel;
import org.jpmml.model.visitors.AbstractVisitor;

public class ScoreDistributionCleaner extends AbstractVisitor {

    @Override
    public VisitorAction visit(Node node) {
        TreeModel treeModel = getTreeModel();

        MiningFunction miningFunction = treeModel.getMiningFunction();
        switch (miningFunction) {
        case REGRESSION:
            if (node.hasScoreDistributions()) {
                List<ScoreDistribution> scoreDistributions = node.getScoreDistributions();

                scoreDistributions.clear();
            }
            break;
        default:
            break;
        }

        return super.visit(node);
    }

    private TreeModel getTreeModel() {
        Deque<PMMLObject> parents = getParents();

        return (TreeModel) Iterables.find(parents, Predicates.instanceOf(TreeModel.class));
    }
}