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//package org.apache.velocity.benchmark;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.runtime.RuntimeConstants;
public class Benchmark
{
int threadCnt = 10;
int runCnt = 1000;
public static final void main(String[] argv) throws Exception
{
Benchmark benchmark = new Benchmark();
benchmark.go();
}
public void log(String str)
{
System.out.println(str);
}
public void go() throws Exception
{
VelocityEngine vengine = new VelocityEngine();
vengine.setProperty(RuntimeConstants.FILE_RESOURCE_LOADER_CACHE, "true");
//vengine.setProperty(RuntimeConstants.VM_ARGUMENTS_PASSBYVALUE, "true");
vengine.setProperty(RuntimeConstants.VM_LIBRARY_AUTORELOAD, "false");
vengine.setProperty(RuntimeConstants.RESOURCE_MANAGER_DEFAULTCACHE_SIZE, "0");
vengine.setProperty(RuntimeConstants.RUNTIME_REFERENCES_STRICT, "true");
vengine.setProperty("file.resource.loader.modificationCheckInterval", "0");
vengine.setProperty(RuntimeConstants.VM_LIBRARY, "vmlib1.vm,vmlib2.vm");
log("Starting " + threadCnt + " threads which will run " + runCnt + " times");
ArrayList list = new ArrayList(threadCnt);
for (int i = 0; i < threadCnt; i++)
{
VelocityThread vt = new VelocityThread(vengine, runCnt);
list.add(vt);
vt.start();
}
}
}
/**
* Worker thread which calls the template.
*/
class VelocityThread extends Thread
{
VelocityEngine vengine = null;
int runCnt = 1000;
boolean runError = false;
// Stuff for the context
List innerList = null;
List outerList = null;
public void initContextObjs()
{
outerList = new ArrayList();
innerList = new ArrayList();
for (int i=0; i < 10; i++)
{
outerList.add(new Integer(i));
innerList.add(new Integer(i));
}
}
public VelocityThread(VelocityEngine vengine, int runCnt)
{
this.vengine = vengine;
this.runCnt = runCnt;
initContextObjs();
}
public void run()
{
for (int i = 0; i < runCnt; i++)
{
Writer writer = new FastWriter();
// We do the setup inside the loop so we can be a little realistic
// Since this type of setup would be done in a real application,
// And filling the context is appropriate for Velocity performance.
VelocityContext context = new VelocityContext();
context.put("blue", "green");
context.put("innerList", innerList);
context.put("outerList", outerList);
for (int j=0; j<10; j++)
{
Test test = new Test();
test.name = "test" + j;
context.put(test.name, test);
}
// Render template
try
{
vengine.mergeTemplate("main.vm", "utf-8", context, writer);
}
catch(Exception e)
{
System.out.println(e);
e.printStackTrace();
runError = true;
System.out.println("Errors during run");
System.exit(1);
}
}
}
/**
* Test Object to be referenced from the template
*/
public static class Test
{
String name = null;
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
}
}
class FastWriter extends Writer
{
char[] buffer = new char[20000];
public FastWriter()
{
super();
}
public void write(char[] buf, int off, int len)
{
for (int i=0; i < len; i++)
{
buffer[i] = buf[i+off];
}
}
public void close() {}
public void flush() {}
}
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