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+/*
+ * Copyright (C) 2009 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 com.google.caliper.examples;
+
+import com.google.caliper.Runner;
+import com.google.caliper.SimpleBenchmark;
+
+import java.util.Formatter;
+
+/**
+ * Compares Formatter against hand-written StringBuilder code.
+ */
+public class FormatterBenchmark extends SimpleBenchmark {
+ public void timeFormatter_NoFormatting(int reps) {
+ for (int i = 0; i < reps; i++) {
+ Formatter f = new Formatter();
+ f.format("this is a reasonably short string that doesn't actually need any formatting");
+ }
+ }
+
+ public void timeStringBuilder_NoFormatting(int reps) {
+ for (int i = 0; i < reps; i++) {
+ StringBuilder sb = new StringBuilder();
+ sb.append("this is a reasonably short string that doesn't actually need any formatting");
+ }
+ }
+
+ public void timeFormatter_OneInt(int reps) {
+ for (int i = 0; i < reps; i++) {
+ Formatter f = new Formatter();
+ f.format("this is a reasonably short string that has an int %d in it", i);
+ }
+ }
+
+ public void timeStringBuilder_OneInt(int reps) {
+ for (int i = 0; i < reps; i++) {
+ StringBuilder sb = new StringBuilder();
+ sb.append("this is a reasonably short string that has an int ");
+ sb.append(i);
+ sb.append(" in it");
+ }
+ }
+
+ public void timeFormatter_OneString(int reps) {
+ for (int i = 0; i < reps; i++) {
+ Formatter f = new Formatter();
+ f.format("this is a reasonably short string that has a string %s in it", "hello");
+ }
+ }
+
+ public void timeStringBuilder_OneString(int reps) {
+ for (int i = 0; i < reps; i++) {
+ StringBuilder sb = new StringBuilder();
+ sb.append("this is a reasonably short string that has a string ");
+ sb.append("hello");
+ sb.append(" in it");
+ }
+ }
+
+ public static void main(String[] args) throws Exception {
+ Runner.main(FormatterBenchmark.class, args);
+ }
+}