/**
*
* Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved.
*
* 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, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.speedment.runtime.core.internal.stream.parallel;
import com.speedment.runtime.core.stream.parallel.ConfigurableIteratorSpliterator;
import com.speedment.runtime.core.stream.parallel.ParallelStrategy;
import java.util.Iterator;
import java.util.Spliterator;
import java.util.stream.IntStream;
/**
*
* @author pemi
*/
public final class ComputeIntensityHighParallelStrategy implements ParallelStrategy {
private final static int[] BATCH_SIZES = IntStream.range(0, 8)
.map(ComputeIntensityUtil::toThePowerOfTwo)
.flatMap(ComputeIntensityUtil::repeatOnHalfAvailableProcessors)
.toArray();
@Override
public <T> Spliterator<T> spliteratorUnknownSize(Iterator<? extends T> iterator, int characteristics) {
return ConfigurableIteratorSpliterator.of(iterator, characteristics, BATCH_SIZES);
}
}