/*
 * INESC-ID, Instituto de Engenharia de Sistemas e Computadores Investigação e Desevolvimento em Lisboa
 * Copyright 2013 INESC-ID and/or its affiliates and other
 * contributors as indicated by the @author tags. All rights reserved.
 * See the copyright.txt in the distribution for a full listing of
 * individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 3.0 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.infinispan.dataplacement.c50.tree.node;

import org.infinispan.dataplacement.c50.keyfeature.Feature;
import org.infinispan.dataplacement.c50.keyfeature.FeatureValue;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;

import java.util.Map;

/**
 * Type 0 decision tree node: the leaf node
 *
 * @author Pedro Ruivo
 * @since 5.2
 */
public class Type0Node implements DecisionTreeNode {

   private static final Log log = LogFactory.getLog(Type0Node.class);

   private final int value;

   public Type0Node(int value) {
      this.value = value;
   }

   @Override
   public DecisionTreeNode find(Map<Feature, FeatureValue> keyFeatures) {
      if (log.isTraceEnabled()) {
         log.tracef("Try to find key [%s]. returning %s", keyFeatures, value);
      }
      return null; //it is a leaf node
   }

   @Override
   public int getValue() {
      return value;
   }

   @Override
   public int getDeep() {
      return 0;
   }
}