| /* |
| * 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; |
| } |
| } |