io.nosqlbench.engine.api.activityapi.cyclelog.buffers.results.CycleResultStrider Maven / Gradle / Ivy

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The engine API for nosqlbench; Provides the interfaces needed to build internal modules for the nosqlbench core engine

There is a newer version: 5.17.0

/*
 *
 *    Copyright 2016 jshook
 *    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 io.nosqlbench.engine.api.activityapi.cyclelog.buffers.results;

import java.util.Iterator;

public class CycleResultStrider {

    private Iterator iterator;

    public CycleResultStrider(Iterator iterator) {
        this.iterator = iterator;
    }

    public CycleResultsSegment getCycleResultsSegment(int stride) {
        if (!iterator.hasNext()) {
            return null;
        }

        CycleResultSegmentBuffer buffer = new CycleResultSegmentBuffer(stride);
        for (int i = 0; i < stride; i++) {
            if (iterator.hasNext()) {
                buffer.append(iterator.next());
            }
        }
        return buffer.toReader();
    }

}