io.nosqlbench.engine.api.activityapi.cyclelog.buffers.results.CycleResultArray 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
/*
*
* 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 io.nosqlbench.engine.api.activityapi.cyclelog.outputs.CanSortCycles;
import java.util.Arrays;
import java.util.Iterator;
import java.util.NoSuchElementException;
public class CycleResultArray implements CycleResultsSegment, CanSortCycles {
private CycleResult[] cycleResults;
public CycleResultArray(CycleResult[] cycleResults) {
this.cycleResults = cycleResults;
}
public CycleResultArray(CycleResultsSegment segment) {
cycleResults = new CycleResult[(int) segment.getCount()];
Iterator iterator = segment.iterator();
for (int i = 0; i < cycleResults.length; i++) {
cycleResults[i]=iterator.next();
}
}
@Override
public long getCount() {
return cycleResults.length;
}
@Override
public long getMinCycle() {
return cycleResults[0].getCycle();
}
@Override
public Iterator iterator() {
return new CycleResultArrayIterator(cycleResults);
}
@Override
public void sort() {
Arrays.sort(cycleResults);
}
private static class CycleResultArrayIterator implements Iterator {
private final CycleResult[] results;
private int idx;
public CycleResultArrayIterator(CycleResult[] results) {
this.results = results;
this.idx=0;
}
@Override
public boolean hasNext() {
return (idx=results.length) {
throw new NoSuchElementException("Unable to read array past last value");
}
CycleResult result = results[idx];
idx++;
return result;
}
}
}
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