/*
* Copyright 2015 Ben Manes. 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.github.benmanes.caffeine.cache.simulator.report;
import java.util.List;
import com.github.benmanes.caffeine.cache.simulator.policy.PolicyStats;
import com.jakewharton.fliptables.FlipTable;
import com.typesafe.config.Config;
/**
* A plain text report that pretty-prints to a table.
*
* @author ben.manes@gmail.com (Ben Manes)
*/
public final class TableReporter extends TextReporter {
public TableReporter(Config config) {
super(config);
}
/** Assembles an aggregated report. */
@Override
@SuppressWarnings("PMD.AvoidDuplicateLiterals")
protected String assemble(List<PolicyStats> results) {
String[][] data = new String[results.size()][headers().length];
for (int i = 0; i < results.size(); i++) {
PolicyStats policyStats = results.get(i);
data[i] = new String[] {
policyStats.name(),
String.format("%.2f %%", 100 * policyStats.hitRate()),
String.format("%,d", policyStats.hitCount()),
String.format("%,d", policyStats.missCount()),
String.format("%,d", policyStats.requestCount()),
String.format("%,d", policyStats.evictionCount()),
String.format("%.2f %%", 100 * policyStats.admissionRate()),
steps(policyStats),
policyStats.stopwatch().toString()
};
}
return FlipTable.of(headers(), data);
}
private static String steps(PolicyStats policyStats) {
long operations = policyStats.operationCount();
long complexity = (long) (100 * policyStats.complexity());
return (operations == 0) ? "?" : String.format("%,d (%,d %%)", operations, complexity);
}
}