org.bboxdb.distribution.partitioner.regionsplit.SimpleSplitStrategy Maven / Gradle / Ivy
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*
* Copyright (C) 2015-2018 the BBoxDB project
*
* 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,
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* See the License for the specific language governing permissions and
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package org.bboxdb.distribution.partitioner.regionsplit;
import org.bboxdb.commons.math.Hyperrectangle;
import org.bboxdb.commons.math.DoubleInterval;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SimpleSplitStrategy implements SplitpointStrategy {
/**
* The Logger
*/
private final static Logger logger = LoggerFactory.getLogger(SimpleSplitStrategy.class);
/**
* Perform a split of the given distribution region
*/
@Override
public double getSplitPoint(final int splitDimension, final Hyperrectangle coveringBox) {
// Split region
final DoubleInterval interval = coveringBox.getIntervalForDimension(splitDimension);
logger.info("Split at dimension: {} interval: {}", splitDimension, interval);
return interval.getMidpoint();
}
}