how to invoke a Tagsoup from a java code???

hi,
I want to excute this command from the command promt
java -jar tagsoup-1.0.4.jar http://moneycentral.msn.com/detail/stock_quote?Symbol=ca"; > ca.xml
into  my java code
package com.psol.xbe2;

import java.io.*;

public class Final
   
{
    public static void main (String args[]) throws IOException
           {
       
        String ur="http://moneycentral.msn.com/detail/stock_quote?Symbol=";
        BufferedReader in = new BufferedReader(new FileReader("ex1.txt"));
        String str;
        while ((str = in.readLine()) != null)
        {
             System.out.println(ur=ur+str);
           // I want to invoke java -jar tagsoup-1.0.4.jar http://moneycentral.msn.com/detail/stock_quote?Symbol=ca"; > ca.xml
        }
        in.close();
        }    
}
badour_maAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ADSLMarkCommented:
0
badour_maAuthor Commented:
thanks MArk,
but I have error:
com\psol\xbe2\Final.java:21: cannot resolve symbol
symbol  : method exec (java.lang.String)
location: class java.lang.System
            System.exec("java -jar tagsoup-1.0.4.jar"+ url+" > ca.xml");
                  ^

package com.psol.xbe2;

import java.io.*;
import java.util.*;
import java.lang.*;

public class Final
{
    private final static String file = "ex1.txt";
    private final static String base = "http://moneycentral.msn.com/detail/stock_quote?Symbol=";

    public static void main(String[] args)
        throws IOException
    {
        String symbol;
        BufferedReader in = new BufferedReader(new FileReader(file));
        while((symbol = in.readLine()) != null)
        {
            String url = base + symbol;
            System.out.println(url);
            System.exec("java -jar tagsoup-1.0.4.jar"+ url+" > ca.xml");

        }
            in.close();
    }
}
0
Mayank SAssociate Director - Product EngineeringCommented:
Its Runtime.getRuntime ().exec ()

And you might want to store the command "java -jar ...." in a properties file and load it from there, so that you can keep changing it on runtime without modifying your source code.
0
Cloud Class® Course: C++ 11 Fundamentals

This course will introduce you to C++ 11 and teach you about syntax fundamentals.

Mayank SAssociate Director - Product EngineeringCommented:
>> in.close();

Put that in a finally block.
0
badour_maAuthor Commented:
the error fixed but
      Runtime.getRuntime ().exec("java -jar tagsoup-1.0.4.jar"+ url+" > ca.xml");
not excuted!!!
0
Mayank SAssociate Director - Product EngineeringCommented:
Where is the JAR file located? Is it in the same directory from where this class file is being run?
0
badour_maAuthor Commented:
yes!!
0
Mayank SAssociate Director - Product EngineeringCommented:
What is the output you get?
0
ADSLMarkCommented:
use --files flag instead of the >.

java -jar tagsoup-1.0.4.jar --files http://moneycentral.msn.com/detail/stock_quote?Symbol=ca"
0
badour_maAuthor Commented:
I should output the reselt to ca.xml
0
badour_maAuthor Commented:
also java -jar tagsoup-1.0.4.jar --files http://moneycentral.msn.com/detail/stock_quote?Symbol=ca" did not work
0
ADSLMarkCommented:
I am unfamiliar with tagsoup, but you can also redirect the standard output:

System.setOut( ... );

http://www.jcreator.com/forums/index.php?showtopic=773
0
badour_maAuthor Commented:
I tried to use it but I had the following error

com\psol\xbe2\TextAreaOutputStream.java:54: <identifier> expected
System.setOut( out );
             ^
com\psol\xbe2\TextAreaOutputStream.java:57: <identifier> expected
System.setErr( out );
             ^
com\psol\xbe2\TextAreaOutputStream.java:60: <identifier> expected
System.out.println( "Hello World" );
                  ^
3 errors

/*
*
*
* @(#) TextAreaOutputStream.java
*
*/

import java.io.IOException;
import java.io.OutputStream;
import javax.swing.JTextArea;

/**
* An output stream that writes its output to a javax.swing.JTextArea
* control.
*
* @author  Ranganath Kini
* @see      javax.swing.JTextArea
*/
public class TextAreaOutputStream extends OutputStream {
    private JTextArea textControl;
   
    /**
     * Creates a new instance of TextAreaOutputStream which writes
     * to the specified instance of javax.swing.JTextArea control.
     *
     * @param control   A reference to the javax.swing.JTextArea
     *                  control to which the output must be redirected
     *                  to.
     */
    public TextAreaOutputStream( JTextArea control ) {
        textControl = control;
    }
   
    /**
     * Writes the specified byte as a character to the
     * javax.swing.JTextArea.
     *
     * @param   b   The byte to be written as character to the
     *              JTextArea.
     */
    public void write( int b ) throws IOException {
        // append the data as characters to the JTextArea control
        textControl.append( String.valueOf( ( char )b ) );
    }  
 
// Create an instance of javax.swing.JTextArea control
JTextArea txtConsole = new JTextArea();

// Now create a new TextAreaOutputStream to write to our JTextArea control and wrap a
// PrintStream around it to support the println/printf methods.
PrintStream out = new PrintStream( new TextAreaOutputStream( txtConsole ) );
 

// redirect standard output stream to the TextAreaOutputStream
System.setOut( out );

// redirect standard error stream to the TextAreaOutputStream
System.setErr( out );

// now test the mechanism
System.out.println( "Hello World" );

}
0
ADSLMarkCommented:
package com.psol.xbe2;

import java.io.*;
import java.util.*;
import java.lang.*;

public class Final
{
    private final static String file = "ex1.txt";
    private final static String base = "http://moneycentral.msn.com/detail/stock_quote?Symbol=";

    public static void main(String[] args)
        throws IOException
    {
        //Read stock symbols
        String symbol;
        BufferedReader in = new BufferedReader(new FileReader(file));

        while((symbol = in.readLine()) != null)
        {
            //Create url
            String url = base + symbol;
            System.out.println(url);

            //Redirect standard output, execute tagsoup and restore standard output
            Process p = Runtime.getRuntime().exec("java -jar tagsoup-1.1.jar "+url);
            InputStream std = p.getInputStream();
            FileOutputStream out = new FileOutputStream(symbol+".xml");

            boolean done = false;
            while(!done)
            {
                try
                {
                    p.exitValue();
                    done = true;
                }
                catch(IllegalThreadStateException itse)
                {
                    try { Thread.sleep(20); } catch(InterruptedException ie) {}
                }

                // Do whatever you want with the output
                while (std.available() > 0)
                    out.write(std.read());
            }
        }

        in.close();
    }
}
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ADSLMarkCommented:
Don't forget to correct the version number of the tag-soup jar.
Mark
0
badour_maAuthor Commented:
Thanks aloooooot Mark :-)
0
Mayank SAssociate Director - Product EngineeringCommented:
So no points for telling Runtime.getRuntime ()....
0
badour_maAuthor Commented:
Hi Mark,
Can u please explain why you do this

boolean done = false;
            while(!done)
            {
                try
                {
                    p.exitValue();
                    done = true;
                }
                catch(IllegalThreadStateException itse)
                {
                    try { Thread.sleep(20); } catch(InterruptedException ie) {}
                }

                // Do whatever you want with the output
                while (std.available() > 0)
                    out.write(std.read());
            }
        }

0
ADSLMarkCommented:
Keeps the stream from the tagsoup streaming to the file, until the process is finished.

Mark
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java

From novice to tech pro — start learning today.