/*
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* Copyright (C) 2011 The Android Open Source Project
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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 com.google.caliper.BeforeExperiment;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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public final class PropertyAccessBenchmark {
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private View view = new View();
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private Method setX;
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private GeneratedProperty generatedSetter = new GeneratedSetter();
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private GeneratedProperty generatedField = new GeneratedField();
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private Field x;
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private Object[] argsBox = new Object[1];
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@BeforeExperiment
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protected void setUp() throws Exception {
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setX = View.class.getDeclaredMethod("setX", float.class);
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x = View.class.getDeclaredField("x");
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}
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public void timeDirectSetter(int reps) {
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for (int i = 0; i < reps; i++) {
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view.setX(0.1f);
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}
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}
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public void timeDirectFieldSet(int reps) {
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for (int i = 0; i < reps; i++) {
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view.x = 0.1f;
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}
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}
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public void timeDirectSetterAndBoxing(int reps) {
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for (int i = 0; i < reps; i++) {
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Float value = 0.1f;
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view.setX(value);
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}
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}
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public void timeDirectFieldSetAndBoxing(int reps) {
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for (int i = 0; i < reps; i++) {
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Float value = 0.1f;
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view.x = value;
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}
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}
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public void timeReflectionSetterAndTwoBoxes(int reps) throws Exception {
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for (int i = 0; i < reps; i++) {
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setX.invoke(view, 0.1f);
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}
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}
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public void timeReflectionSetterAndOneBox(int reps) throws Exception {
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for (int i = 0; i < reps; i++) {
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argsBox[0] = 0.1f;
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setX.invoke(view, argsBox);
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}
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}
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public void timeReflectionFieldSet(int reps) throws Exception {
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for (int i = 0; i < reps; i++) {
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x.setFloat(view, 0.1f);
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}
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}
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public void timeGeneratedSetter(int reps) throws Exception {
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for (int i = 0; i < reps; i++) {
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generatedSetter.setFloat(view, 0.1f);
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}
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}
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public void timeGeneratedFieldSet(int reps) throws Exception {
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for (int i = 0; i < reps; i++) {
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generatedField.setFloat(view, 0.1f);
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}
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}
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static class View {
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float x;
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public void setX(float x) {
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this.x = x;
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}
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}
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static interface GeneratedProperty {
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void setFloat(View v, float f);
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}
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static class GeneratedSetter implements GeneratedProperty {
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public void setFloat(View v, float f) {
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v.setX(f);
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}
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}
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static class GeneratedField implements GeneratedProperty {
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public void setFloat(View v, float f) {
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v.x = f;
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}
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}
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}
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