/*******************************************************************************
* Copyright (c) 2013 EclipseSource.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Ralf Sternberg - initial implementation and API
******************************************************************************/
package com.eclipsesource.json.performancetest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import com.eclipsesource.json.performancetest.caliper.CaliperRunner;
import com.eclipsesource.json.performancetest.jsonrunners.JsonRunner;
import com.eclipsesource.json.performancetest.jsonrunners.JsonRunnerFactory;
import com.google.caliper.Param;
import com.google.caliper.SimpleBenchmark;
import static com.eclipsesource.json.performancetest.resources.Resources.getResourceAsStream;
/*
* Since the JsonParser uses a buffer for reading, wrapping the reader in an additional
* BufferedReader should not distinctly affect reading performance.
*/
public class BufferedReaderBenchmark extends SimpleBenchmark {
private JsonRunner runner;
@Param String input;
@Param String parser;
@Override
protected void setUp() throws Exception {
runner = JsonRunnerFactory.findByName( parser );
}
public void timeReader( int reps ) throws Exception {
for( int i = 0; i < reps; i++ ) {
InputStream inputStream = getResourceAsStream( "input/" + input + ".json" );
Reader reader = new InputStreamReader( inputStream );
Object model = runner.readFromReader( reader );
reader.close();
if( model == null ) {
throw new NullPointerException();
}
}
}
public void timeBufferedReader( int reps ) throws Exception {
for( int i = 0; i < reps; i++ ) {
InputStream inputStream = getResourceAsStream( "input/" + input + ".json" );
Reader reader = new BufferedReader( new InputStreamReader( inputStream ) );
Object model = runner.readFromReader( reader );
reader.close();
if( model == null ) {
throw new NullPointerException();
}
}
}
public static void main( String[] args ) throws IOException {
CaliperRunner runner = new CaliperRunner( BufferedReaderBenchmark.class );
runner.addParameter( "parser", "null", "gson", "jackson", "minimal-json" );
runner.addParameter( "input", "rap", "caliper", "long-string", "numbers-array" );
runner.exec();
}
}