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CGRatioCalculator.java
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CGRatioCalculator.java
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/*
* Copyright (c) 2022 nosqlbench
*
* 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.cqlgen.transformers;
import io.nosqlbench.cqlgen.api.CGModelTransformer;
import io.nosqlbench.cqlgen.core.CGTableStats;
import io.nosqlbench.cqlgen.model.CqlModel;
import io.nosqlbench.cqlgen.model.CqlTable;
public class CGRatioCalculator implements CGModelTransformer {
private String name;
@Override
public CqlModel apply(CqlModel model) {
if (!model.hasStats()) {
// TODO: True this up
return model;
}
double totalReads = 0.0d;
double totalWrites = 0.0d;
double totalSpace = 0.0d;
double totalOps = 0.0d;
for (CqlTable table : model.getTableDefs()) {
CGTableStats tableAttributes = table.getTableAttributes();
if (tableAttributes == null) {
continue;
}
String local_read_count = tableAttributes.getAttribute("Local read count");
double reads = Double.parseDouble(local_read_count);
totalReads += reads;
totalOps += reads;
String local_write_count = table.getTableAttributes().getAttribute("Local write count");
double writes = Double.parseDouble(local_write_count);
totalWrites += writes;
totalOps += writes;
String space_used_total = table.getTableAttributes().getAttribute("Space used (total)");
double space = Double.parseDouble(space_used_total);
totalSpace += space;
}
for (CqlTable table : model.getTableDefs()) {
double reads = Double.parseDouble(table.getTableAttributes().getAttribute("Local read count"));
double writes = Double.parseDouble(table.getTableAttributes().getAttribute("Local write count"));
double totalTableReads = reads / totalOps;
double totalTableWrites = writes / totalOps;
double tableSpaceUsed = Double.parseDouble(table.getTableAttributes().getAttribute("Space used (total)"));
double weighted_space = tableSpaceUsed / totalSpace;
double op_share_of_total_ops = totalTableReads + totalTableWrites;
ComputedTableStats computedTableStats = new ComputedTableStats()
.setReadShareOfTotalOps(reads / totalOps)
.setReadShareOfTotalReads(reads / totalReads)
.setWriteShareOfTotalOps(writes / totalOps)
.setWriteShareOfTotalWrites(writes / totalWrites)
.setOpShareOfTotalOps(op_share_of_total_ops)
.setSpaceUsedOfTotalSpace(weighted_space);
table.setComputedStats(computedTableStats);
}
return model;
}
@Override
public void setName(String name) {
this.name = name;
}
@Override
public String getName() {
return this.name;
}
}