/*
* Copyright (C) 2012 The Guava Authors
*
* 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.google.common.base;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
/**
* Some microbenchmarks for the {@link MoreObjects.ToStringHelper} class.
*
* @author Osvaldo Doederlein
*/
public class ToStringHelperBenchmark {
@Param({"0", "2", "5", "10"}) int dataSize;
private static final String NAME = "abcdefgh";
private static final String NAME3 = Strings.repeat(NAME, 3);
private static void addEntries(MoreObjects.ToStringHelper helper) {
helper
.add(NAME, 10)
.addValue(10L)
.add(NAME, 3.14f)
.addValue(3.14d)
.add(NAME3, false)
.add(NAME3, NAME3)
.add(NAME3, 'x');
}
@Benchmark int toString(int reps) {
int dummy = 0;
for (int i = 0; i < reps; i++) {
MoreObjects.ToStringHelper helper = MoreObjects.toStringHelper("klass").omitNullValues();
for (int j = 0; j < dataSize; ++j) {
addEntries(helper);
}
dummy ^= helper
.toString().hashCode();
}
return dummy;
}
}