[Laszlo-dev] Re: [Laszlo-user] more lzc questions

[Jove]

Hi List,

In order to avoid starting JVM every time you run lzc, I developed a command
line interface and a Swing version to keep the JVM alive and wait for input
of new LZX file, inspired by Apache Maven console mode. The result is quite
exciting:

c:\Java\OpenLaszloServer3.0.2 \Server\lps-3.0.2\test>lzc
>LzcWrapper started.
>Enter the LZX file name to compile('exit' to quit)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done( 3.084 seconds consumed)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done(0.631 seconds consumed)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done(0.59 seconds consumed)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done(0.531 seconds consumed)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done(0.52 seconds consumed)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done( 0.511 seconds consumed)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done(0.501 seconds consumed)
01_empty_canvas.lzx
>compiling 01_empty_canvas.lzx. Done(0.541 seconds consumed)

Here is the source code. Feel free to test it by putting it in
WEB-INF/classes and runing javac -classpath ..\lib\lps-<version>.jar
<JavaFilename>
//LzcWrapper.java
import java.io.*;
public class LzcWrapper{
 public static void main(String[] args) throws Exception{
 System.out.println(">LzcWrapper started. \n>Enter the LZX file name to
compile('exit' to quit)");
 String[] param=new String[1];
 BufferedReader br=new BufferedReader(new
InputStreamReader(System.in<http://system.in/>
));
 while(true){
 param[0]=getFilename(br);
 System.out.print(">compiling "+param[0]);
 long mil=System.currentTimeMillis();
 org.openlaszlo.compiler.Main.main(param);
 double time=((double)(System.currentTimeMillis()-mil))/1000;
 System.out.println(". Done("+time+" seconds consumed)");
 }
 }
 private static String getFilename(BufferedReader br) throws IOException{
 String line=br.readLine();
 while(line==null||line.trim().length()==0){
 line=br.readLine();
 }
 if(line.equals("exit")){
 System.out.println(">LzcWrapper exited");
 System.exit(0);
 }
 return line.trim();
 }
}

//LzcWrapperGui.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class LzcWrapperGui{
 public static void main(final String[] args) throws Exception{
 if(args.length!=1){
 System.out.println("please specify one LZX file.");
 System.exit(0);
 }
 final String file=args[0];
 JFrame w=new JFrame("LZX GUI Compiler");
 w.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 w.setSize(400,100);
 w.setLocation(200,200);
 Container con=w.getContentPane();
 con.setLayout(new BorderLayout());
 final JLabel label=new JLabel();
 JButton bn=new JButton("Compile&Run "+file);
 bn.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent evt){
 long mil=System.currentTimeMillis();
 try{
 org.openlaszlo.compiler.Main.main(args);
 }catch(Exception e){e.printStackTrace();}
 double time=((double)(System.currentTimeMillis()-mil))/1000;
 label.setText("Done("+time+" seconds consumed)");
 LzcWrapperGui.runSwf(file);
 }
 });
 con.add(bn,"North");
 con.add(label,"South");
 w.setVisible(true);
 }
 static void runSwf(String lzxFile){
 int pos=lzxFile.indexOf('.');
 String swfFile=lzxFile.substring(0,pos)+".swf";
 try{
 Runtime.getRuntime().exec("Player_A1_DebugSA_10-14 "+swfFile);
 }catch(Exception e){e.printStackTrace();}
 }
}
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On 11/19/05, Mika Göckel <mika.goeckel at gmx.de> wrote:
>
> Oehm.... what about getting rid of the lzc exec call from the build file
> in WEB-INF/lps/lfc and replace it with a direct call to the Class?
> I changed it to
>
> <target name="lzl" depends="chkUptoDate"
> unless="${library}.notRequired" description="Build a .lzl library from
> source">
> <echo message="Compiling ${library}"/>
> <echo message="arg: ${args} -o ${library}.lzl ${source}"/>
> <java classpathref="lzcp" classname="org.openlaszlo.sc.Main">
> <jvmarg value="-DLPS_HOME=${LPS_HOME}"/>
> <arg line="${args} -o ${library}.lzl ${source}"/>
> </java>
> </target>
>
> This avoids loading the jvm every time.
>
> I didn't contribute the build.xml so far, because I hope that we switch
> to ant-1.6.5 which will allow further improvements.
> My full build.xml is attached (please be aware it's work in progress, so
> it might not work out of the bix without minor fixing).
>
> Cheers, Mika
>
>
> Pablo Kang schrieb:
>
> > You're probably taking a hit with the JVM loading every time you run
> lzc.
> >
> > pablo
> >
> > On Fri, 18 Nov 2005, Scott Evans wrote:
> >
> >> I'm in the midst of moving our build process to use lzc and produce a
> >> standalone .swf file every time -- instead of doing the in-place type
> of
> >> recompiles that you get through the OLS.
> >>
> >> But what I'm seeing so far is that rebuilds seem slower than they do
> >> through a browser. *Something* is pegging the CPU for a while during
> >> the
> >> process, even if no files have changed. My source files get replaced on
> >> the disk (we shuttle all our files off to a build location), but I keep
> >> their timestamps, so as far as caching mechanisms go, the files should
> >> look identical.
> >>
> >> My lzc invocation is:
> >> lzc --mcache on --keepscriptcache --runtime=swf7 main.lzx
> >>
> >> Ideas?
> >>
> >>
> >>
> >> gse
> >> _______________________________________________
> >> Laszlo-user mailing list
> >> Laszlo-user at openlaszlo.org
> >> http://www.openlaszlo.org/mailman/listinfo/laszlo-user
> >>
> > _______________________________________________
> > Laszlo-user mailing list
> > Laszlo-user at openlaszlo.org
> > http://www.openlaszlo.org/mailman/listinfo/laszlo-user
> >
>
>
>
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>
>
>
>
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