Solved

How to call a Java code within Perl code if the passing variables are too long?

Posted on 2011-09-13
9
331 Views
Last Modified: 2012-05-12
Hi,
I have a Perl code and I will call my java code within this code.

The problem is; the values that I want to pass to the java code is too long that it is risky to pass them as below:

my $javaCmd = "java -jar $mydir/myTool/".
			 "Tool.jar $login '$List' $id $folder ".
			  "$option1 $option2 $soapEndpointURL";

system($javaCmd);

Open in new window



I heard that I can pipe, but I don't know how to do it?

Can you please let me know how I can do it?
0
Comment
Question by:Tolgar
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
  • 2
  • +1
9 Comments
 
LVL 47

Expert Comment

by:for_yan
ID: 36530907
So do you want read the output of your perl program in the subsequent run of the java program?

and you can modify the ocde of both of them - correct?
0
 

Author Comment

by:Tolgar
ID: 36531118
Yes I can modify the both of the code.

The thing that I want is exactly the way I explained in the initial question.

Call java code within perl. this is what I want.

This is the beginning of my java code:

public static void main(java.lang.String args[])

Open in new window


0
 
LVL 28

Accepted Solution

by:
FishMonger earned 500 total points
ID: 36531384
Try the list form of system.

my @javaCmd = ('java', '-jar', "$mydir/myTool/Tool.jar", $login, $List, $id, $folder, $option1, $option2,  $soapEndpointURL);

system( @javaCmd );

Open in new window

0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 47

Expert Comment

by:for_yan
ID: 36531501
I think number of paraeters for java program is unlimited, so you should not be worrying
If you are concerned with having too many parameters especially if some of those are multiline text ,
perhaps one iption will be to communicate through the file - that probably would be most stright forward
0
 
LVL 9

Expert Comment

by:parparov
ID: 36531586
If you want to embed Java code in Perl you can use Inline::Java module, but it's not a trivial thing.

http://search.cpan.org/dist/Inline-Java/Java.pod
0
 

Author Comment

by:Tolgar
ID: 36538153
Actually, I found out what I need  to do. I need to pass all the arguments using @args just like in C.

so it will be something like:

system @args

Open in new window


But I need a concrete example how I can use it, preferably with some descriptive comments.

Thanks,

0
 

Author Comment

by:Tolgar
ID: 36538172
Note: This will help me not to invoke any shells so I don't need to worry about multi line arguments in the system command.

Thanks,
0
 
LVL 9

Expert Comment

by:parparov
ID: 36538621
Use FishMonger's example. He only called your @args differently.
0
 

Author Comment

by:Tolgar
ID: 36538681
oh. perfect. I missed it.

Thanks,
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

There are many situations when we need to display the data in sorted order. For example: Student details by name or by rank or by total marks etc. If you are working on data driven based projects then you will use sorting techniques very frequently.…
Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question