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/*
* Copyright (C) 2010 Google Inc.
*
* 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 test;
import com.google.caliper.Benchmark;
import com.google.caliper.TimedRunnable;
import com.google.caliper.Runner;
import java.util.Set;
import java.util.Map;
/**
* Proof-of-concept of a decorating benchmark.
*/
public class TracingBenchmark implements Benchmark {
private final Benchmark delegate;
public TracingBenchmark() {
this.delegate = new ThreadSleepBenchmark();
}
public Set<String> parameterNames() {
return delegate.parameterNames();
}
public Set<String> parameterValues(String parameterName) {
return delegate.parameterValues(parameterName);
}
public TimedRunnable createBenchmark(Map<String, String> parameterValues) {
final TimedRunnable benchmark = delegate.createBenchmark(parameterValues);
return new TimedRunnable() {
public Object run(int reps) throws Exception {
// TODO: can we move the setup/tear down work out of the timed loop?
Runtime.getRuntime().traceMethodCalls(true);
try {
return benchmark.run(reps);
} finally {
Runtime.getRuntime().traceMethodCalls(false);
}
}
};
}
public static void main(String[] args) {
Runner.main(TracingBenchmark.class);
}
}
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