build.xml

<?xml version="1.0" encoding="utf-8" ?>
<project name="template-shootout" default="selected" basedir=".">

    <property name="src" location="src"/>
    <property name="classes" location="classes"/>
    <property name="lib" location="lib"/>
    <property name="output" location="output"/>
    <property environment="env"/>
    <property name="out" value="os"/>
    <property name="wtimes" value="100"/>
    <property name="ntimes" value="10000"/>
    <property name="buf" value="false"/>
    <property name="rythm.new" value="false"/>
    <property name="handlebars.defaultTemplateLoader" value="false"/>
    <property name="handlebars.defaultCache" value="false"/>


    <path id="project.class.path">
        <fileset dir="${lib}">
            <include name="**/*.jar"/>
        </fileset>
    </path>

    <target name="init">
        <tstamp/>
        <mkdir dir="${classes}"/>
        <taskdef name="jamon"
                 classname="org.jamon.ant.JamonTask"
                 classpathref="project.class.path"/>
        <jamon destdir="${src}" srcdir="templates"/>
        <copy file="templates/stocks.httl.html" tofile="classes/stocks.httl.html"/>
        <mkdir dir="${output}"/>
    </target>

    <target name="compile" depends="init">
        <javac srcdir="${src}" destdir="${classes}" includeantruntime="true" debug="on">
            <classpath refid="project.class.path"/>
        </javac>
    </target>

    <target name="velocity" depends="compile">
        <java classname="teb.Velocity" output="output/velocity.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath location="${lib}/velocity-1.7.jar"/>
            <classpath location="${lib}/velocity-1.7-dep.jar"/>
        </java>
    </target>

    <target name="stringbuilder" depends="compile">
        <java classname="teb.StringBuilder" output="output/stringbuilder.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
        </java>
    </target>

    <target name="jamon" depends="compile">
        <java classname="teb.Jamon" output="output/jamon.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="rythm" depends="compile">
        <java classname="teb.Rythm" output="output/rythm.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <!--<jvmarg value="-javaagent:shiftone-jrat.jar"/>-->
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <sysproperty  key="rythm.new" value="${rythm.new}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="beetl" depends="compile">
        <java classname="teb.Beetl" output="output/beetl.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="freemarker" depends="compile">
        <java classname="teb.FreeMarker" output="output/freemarker.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="httl" depends="compile">
        <java classname="teb.Httl" output="output/httl.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="jmte" depends="compile">
        <java classname="teb.JMTE" output="output/jmte.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="jangod" depends="compile">
        <java classname="teb.Jangod" output="output/jangod.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="thymeleaf" depends="compile">
        <java classname="teb.Thymeleaf" output="output/thymeleaf.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="mustache" depends="compile">
        <java classname="teb.MustacheBenchmark" output="output/mustache.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>

    <target name="handlebars" depends="compile">
        <java classname="teb.HandlebarsBenchmark" output="output/handlebars.html" logError="true" fork="true">
            <jvmarg value="-server"/>
            <sysproperty  key="out" value="${out}"/>
            <sysproperty  key="wtimes" value="${wtimes}"/>
            <sysproperty  key="ntimes" value="${ntimes}"/>
            <sysproperty  key="buf" value="${buf}"/>	
        	<sysproperty  key="handlebars.defaultTemplateLoader" 
        		value="${handlebars.defaultTemplateLoader}" />
        	<sysproperty  key="handlebars.defaultCache" 
        		value="${handlebars.defaultTemplateLoader}" />
            <classpath location="classes"/>
            <classpath refid="project.class.path"/>
        </java>
    </target>
	
    <target name="header">
        <echo>
#################################################################
            
            JAVA TEMPLATE ENGINE BENCHMARKER v1.0
            
               Output method:   ${out}
               warm up loops:   ${wtimes}
               benchmark loops: ${ntimes}
               buffer mode:     ${buf}
               rythm new API:   ${rythm.new}
               
            type 'ant help' to see help messsage
################################################################
        </echo>
    </target>

    <target name="selected" depends="header,stringbuilder,freemarker,velocity,beetl,rythm,jamon,httl,jmte,mustache,handlebars"></target>
    <target name="all" depends="header,stringbuilder,freemarker,velocity,beetl,rythm,jamon,httl,jmte,jangod,thymeleaf,mustache,handlebars"></target>
    
    <target name="help">
        <echo>
==============================================================================
              JAVA TEMPLATE ENGINE BENCHMARKER v1.0
==============================================================================

This is a benchmark program for a collection of Java template engines

You need apache ant to run the program, just type "ant" and it will start. 
This program accept parameters to configure how to run the benchmark:

 1. out: specify how to output rendering result, could be:
   * os: output to OutputStream (default);
   * w:  output to Writer
   * s:  return String

 2. wtimes: specify number of warm up loops.
    default: 100

 3. ntimes: specify number of benchmark loops.
    default: 10000

 4. buf: specify whether use BufferedWriter or OS
    default: false
    
 5. rythm.new: for rythm engine only. specify whether use new API to
    run rythm benchmark or not. Default: false

The arguments should be passed in using property setting. e.g

   ant -Dout=w \
       -Dwtimes=10 \
       -Dntimes=1000 \
       -Dbuf=false \
       -Drythm.new=true

Should you have any suggestion or comments, please raise issue via 
https://github.com/greenlaw110/template-engine-benchmarks/issues

Note since jangod and thymeleaf is way slow than all others, they are not put into the default target. To benchmark jangod and thymeleaf also, run `ant all`
        </echo>
    </target>

    <target name="clean">
        <delete dir="${classes}"/>
        <delete dir="${output}"/>
        <delete>
            <fileset dir="." includes="output/*"/>
        </delete>
    </target>

</project>