/* * Copyright (c) 2019 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.evaluator.visitors; import java.util.List; import org.dmg.pmml.VisitorAction; import org.dmg.pmml.tree.DecisionTree; import org.dmg.pmml.tree.Node; import org.dmg.pmml.tree.TreeModel; import org.jpmml.evaluator.UnsupportedElementException; import org.jpmml.model.visitors.AbstractVisitor; public class NodeResolver extends AbstractVisitor { @Override public VisitorAction visit(DecisionTree decisionTree){ throw new UnsupportedElementException(decisionTree); } @Override public VisitorAction visit(Node node){ Object defaultChild = node.getDefaultChild(); if(node.hasNodes()){ List<Node> children = node.getNodes(); for(int i = 0, max = children.size(); i < max; i++){ Node child = children.get(i); Object id = child.getId(); if(id != null && (id).equals(defaultChild)){ node.setDefaultChild(child); break; } } } return super.visit(node); } @Override public VisitorAction visit(TreeModel treeModel){ TreeModel.MissingValueStrategy missingValueStrategy = treeModel.getMissingValueStrategy(); switch(missingValueStrategy){ case DEFAULT_CHILD: break; default: return VisitorAction.SKIP; } return super.visit(treeModel); } }