tcljava-user

[tcljava-user] Q. How does java interact with tcl?

[Kim,Younghun <mys...@ic...>]

Hello dear ,

 

First at all, I'm not sure my question is proper or not to this topic. But,
I'm considering I should use Tcljava. Because I ask to here. 

 

I'm doing a project. In this project I'm making simple java program which
can interact with "tclsh". Java program is designed originally without
tclblend and jacl. In my idea, java can call the "tclsh" by using
'ProcessBuilder' class. It then gets input/error/ouput-streams of tclsh. If
I handle these three-stream, I may be able to handle tclsh through
java-program.(sample source code is attached below) This is my idea but, it
doesn't work. I think I couldn't get these streams. Anyway while
processbuilder are handling tclsh, tclsh process is working on system. 



I guess tclsh, I guess this is a kind of shell, uses own shell, so java
cannot intercept IO streams of it. 

 

How do you think of this problem?

 

Is there any solution? or

If do I use the TclBlend, can I obtain way to solve this problem?

If you have any experience or comment, please let me know. 

 

I'm working with:

Tcl version is ActiveTcl 8.4.

I'm using java sdk 6

And I tried test based on windows and linux both.

 

Thank you.

Best regards 

 

 

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.File;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

 

public class TclExcuter {

             public Process oProcess;

             BufferedReader reader;

             BufferedWriter writer;

             

             public TclExcuter(String[] args) {

             }

             

             public TclExcuter(String args) {

             }

             

             public TclExcuter() {

                           this.runTcl();

             }

             

             private String runTcl() {

                           String result = "";

                           String tmp;

                           

                           try {

                                        /*  over the java version 1.5 */

                                        ProcessBuilder pb =new
ProcessBuilder("cmd","/y","/c","tclsh");

                                        pb = pb.directory(new File("C:\\"));

                                        pb = pb.redirectErrorStream(true);

                                        oProcess = pb.start();

                                        

                                        reader = new BufferedReader(new
InputStreamReader(oProcess.getInputStream()));

                                        writer = new BufferedWriter(new
OutputStreamWriter(oProcess.getOutputStream()));

                           } catch (IOException e) {

                                        e.printStackTrace();

                           }

                           return result;

             }

 

             public BufferedReader getReader() {

                           return reader;

             }

 

             public BufferedWriter getWriter() {

                           return writer;

             }

}

Re: [tcljava-user] Q. How does java interact with tcl?

[Patrick F. <fin...@gm...>]

Have a read of this.

Embedding a Tcl Interpreter in Java ==>>
http://www.ensta.fr/~diam/tcl/online/Using_Tcl_in_Java-20010106.html




2008/6/14 Kim,Younghun <mys...@ic...>:

>  Hello dear ,
>
>
>
> First at all, I'm not sure my question is proper or not to this topic. But,
> I'm considering I should use Tcljava. Because I ask to here.
>
>
>
> I'm doing a project. In this project I'm making simple java program which
> can interact with "tclsh". Java program is designed originally without
> tclblend and jacl. In my idea, java can call the "tclsh" by using
> 'ProcessBuilder' class. It then gets input/error/ouput-streams of tclsh. If
> I handle these three-stream, I may be able to handle tclsh through
> java-program.(sample source code is attached below) This is my idea but*,
> it doesn't work.* I think I couldn't get these streams. Anyway while
> processbuilder are handling tclsh, tclsh process is working on system.
>
>  I guess tclsh, I guess this is a kind of shell, uses own shell, so java
> cannot intercept IO streams of it.
>
>
>
> How do you think of this problem?
>
>
>
> Is there any solution? or
>
> If do I use the TclBlend, can I obtain way to solve this problem?
>
> If you have any experience or comment, please let me know.
>
>
>
> I'm working with:
>
> Tcl version is ActiveTcl 8.4.
>
> I'm using java sdk 6
>
> And I tried test based on windows and linux both.
>
>
>
> Thank you.
>
> Best regards
>
>
>
>
>
> import java.io.BufferedReader;
>
> import java.io.BufferedWriter;
>
> import java.io.File;
>
> import java.io.IOException;
>
> import java.io.InputStreamReader;
>
> import java.io.OutputStreamWriter;
>
>
>
> public class TclExcuter {
>
>              public Process oProcess;
>
>              BufferedReader reader;
>
>              BufferedWriter writer;
>
>
>
>              public TclExcuter(String[] args) {
>
>              }
>
>
>
>              public TclExcuter(String args) {
>
>              }
>
>
>
>              public TclExcuter() {
>
>                            this.runTcl();
>
>              }
>
>
>
>              private String runTcl() {
>
>                            String result = "";
>
>                            String tmp;
>
>
>
>                            try {
>
>                                         /*  over the java version 1.5 */
>
>                                         ProcessBuilder pb =new
> ProcessBuilder("cmd","/y","/c","tclsh");
>
>                                         pb = pb.directory(new
> File("C:\\"));
>
>                                         pb = pb.redirectErrorStream(true);
>
>                                         oProcess = pb.start();
>
>
>
>                                         reader = new BufferedReader(new
> InputStreamReader(oProcess.getInputStream()));
>
>                                         writer = new BufferedWriter(new
> OutputStreamWriter(oProcess.getOutputStream()));
>
>                            } catch (IOException e) {
>
>                                         e.printStackTrace();
>
>                            }
>
>                            return result;
>
>              }
>
>
>
>              public BufferedReader getReader() {
>
>                            return reader;
>
>              }
>
>
>
>              public BufferedWriter getWriter() {
>
>                            return writer;
>
>              }
>
> }
>
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