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printing messages on console [message #743258]

Fri, 21 October 2011 05:22

giorgos
Messages: 6
Registered: October 2011

Junior Member

Hello,
I would like to ask how I could print some messages or information about the values of some variables for example, on the console or in a log file during model execution. I used System.out.println() in the body of a Rule method but it does not appear to work.

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Re: printing messages on console [message #743658 is a reply to message #743258]

Fri, 21 October 2011 12:39

Miles Parker
Messages: 1266
Registered: July 2009

Senior Member

Did you check the System console? They won't go directly to the Eclipse console unless you're running in self-hosted mode.

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Re: printing messages on console [message #747829 is a reply to message #743658]

Mon, 24 October 2011 06:01

giorgos
Messages: 6
Registered: October 2011

Junior Member

How can I check the System console? Furthermore, I've tried to send the messages to a file. The code I wrote inside the Rule method is the following :

try{
// Create file

java.io.FileWriter fstream = new java.io.FileWriter("out.txt");
java.io.BufferedWriter out = new java.io.BufferedWriter(fstream);
out.write("Hello");
out.close();

}catch (Exception e){//Catch exception if any

System.err.println("Error: " + e.getMessage());
}
When I execute the model, no such file is created in the workspace. However, when I put this code in a class in another project and run it as a java application it works. Do you have any idea about why it works in the second case and not in the first?

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Re: printing messages on console [message #756103 is a reply to message #747829]

Thu, 10 November 2011 17:44

Miles Parker
Messages: 1266
Registered: July 2009

Senior Member

Wow, I'm still not getting notifications. Sad

Sorry for the late reply.

The relative location of any files is going to be wherever you started Eclipse, *not* the workspace. Try an absolute file location, or use the Eclipse file API.

For the system console, that's system specific. For example on the Mac it's in Applications/Utilities.

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