/*
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* Copyright (C) 2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package benchmarks.regression;
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import java.util.Formatter;
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import java.util.Locale;
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/**
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* Compares Formatter against hand-written StringBuilder code.
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*/
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public class FormatterBenchmark {
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public void timeFormatter_NoFormatting(int reps) {
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format("this is a reasonably short string that doesn't actually need any formatting");
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}
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}
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public void timeStringBuilder_NoFormatting(int reps) {
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for (int i = 0; i < reps; i++) {
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StringBuilder sb = new StringBuilder();
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sb.append("this is a reasonably short string that doesn't actually need any formatting");
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}
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}
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public void timeFormatter_OneInt(int reps) {
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Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here.
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format("this is a reasonably short string that has an int %d in it", value);
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}
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}
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public void timeFormatter_OneIntArabic(int reps) {
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Locale arabic = new Locale("ar");
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Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here.
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format(arabic, "this is a reasonably short string that has an int %d in it", value);
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}
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}
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public void timeStringBuilder_OneInt(int reps) {
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for (int i = 0; i < reps; i++) {
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StringBuilder sb = new StringBuilder();
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sb.append("this is a reasonably short string that has an int ");
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sb.append(1024);
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sb.append(" in it");
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}
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}
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public void timeFormatter_OneHexInt(int reps) {
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Integer value = Integer.valueOf(1024); // We're not trying to benchmark boxing here.
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format("this is a reasonably short string that has an int %x in it", value);
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}
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}
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public void timeStringBuilder_OneHexInt(int reps) {
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for (int i = 0; i < reps; i++) {
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StringBuilder sb = new StringBuilder();
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sb.append("this is a reasonably short string that has an int ");
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sb.append(Integer.toHexString(1024));
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sb.append(" in it");
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}
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}
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public void timeFormatter_OneFloat(int reps) {
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Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here.
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format("this is a reasonably short string that has a float %f in it", value);
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}
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}
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public void timeFormatter_OneFloat_dot2f(int reps) {
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Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here.
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format("this is a reasonably short string that has a float %.2f in it", value);
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}
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}
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public void timeFormatter_TwoFloats(int reps) {
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Float value = Float.valueOf(10.24f); // We're not trying to benchmark boxing here.
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format("this is a reasonably short string that has two floats %f and %f in it", value, value);
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}
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}
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public void timeStringBuilder_OneFloat(int reps) {
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for (int i = 0; i < reps; i++) {
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StringBuilder sb = new StringBuilder();
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sb.append("this is a reasonably short string that has a float ");
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sb.append(10.24f);
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sb.append(" in it");
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}
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}
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public void timeFormatter_OneString(int reps) {
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for (int i = 0; i < reps; i++) {
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Formatter f = new Formatter();
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f.format("this is a reasonably short string that has a string %s in it", "hello");
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}
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}
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public void timeStringBuilder_OneString(int reps) {
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for (int i = 0; i < reps; i++) {
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StringBuilder sb = new StringBuilder();
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sb.append("this is a reasonably short string that has a string ");
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sb.append("hello");
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sb.append(" in it");
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}
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}
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}
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