topic Re: Capture System.out.println output in tesb.log in Talend Studio

Capture System.out.println output in tesb.log

root — Sat, 16 Nov 2024 09:24:33 GMT

In my TOS ESB tRestRequest/ tRestResponse job, I have put in a few debug statements using System.out.println(). These show up when I am running the Runtime container using ./trun

However, when I start the Runtime container using ./start, these logs do not appear and neither are they logged in the <RunTimeContainer>/log/tesb.log file

How can I capture that information? Please help. This has been driving me crazy for the past few days.

Thank you.

Re: Capture System.out.println output in tesb.log

Anonymous — Wed, 16 Aug 2017 08:12:54 GMT

Hi,

Could you try with log.info() ?

Eric

Re: Capture System.out.println output in tesb.log

root — Sat, 19 Aug 2017 04:49:31 GMT

Umm, Do I need to import any libraries? log.info() gives me.. Any example will be helpful. Or any other way in which I can capture the console details in tesb.log

log cannot be resolved

Re: Capture System.out.println output in tesb.log

Anonymous — Sat, 19 Aug 2017 07:21:29 GMT

In a tJavaRow, I just enter:

log.info("This is a test");

In your job code, don't you see these java lines:

if (!"".equals(log4jLevel)) {
if ("trace".equalsIgnoreCase(log4jLevel)) {
log.setLevel(org.apache.log4j.Level.TRACE);
} else if ("debug".equalsIgnoreCase(log4jLevel)) {
log.setLevel(org.apache.log4j.Level.DEBUG);

...

Eric

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 13:56:51 GMT

So, what do I need to initialize "log" in my code?

Re: Capture System.out.println output in tesb.log

Anonymous — Mon, 21 Aug 2017 14:01:38 GMT

I don't know... If I create a job without any component, I already have this code piece...

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 14:11:09 GMT

wow, for me, it says "log cannot be resolved". Can you check someother component in your design and see where its instantiated please?

Re: Capture System.out.println output in tesb.log

Anonymous — Mon, 21 Aug 2017 14:32:07 GMT

What version of Talend are you using @mbocquet? If you go to your "Code" tab which shows you the autogenerated Java code for your job, you should see some code that looks like this....

//GetFileDetails.class is the name of the job 
private static org.apache.log4j.Logger log = org.apache.log4j.Logger
			.getLogger(GetFileDetails.class);

My suspicion is that you are not using v6.

Re: Capture System.out.println output in tesb.log

Anonymous — Mon, 21 Aug 2017 14:39:37 GMT

You can potentially get around this (I've not tried this since I do not have a version without this on my current machine) by adding the relevant Jar using a tLibraryLoad and using the following code....

org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger("MyLog");

I'd be interested to see if this works. As I said, I would have tried this myself but the version I am using has this.

Another possibility could be that this is functionality left out of the open source edition.

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 15:08:56 GMT

@rhall:

I am using TESB Open Studio V 6.3.1. Is that a problem?

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 15:09:24 GMT

I think you are right, its not in Open source edition.

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 15:09:58 GMT

So what are my alternatives to capture console logs? Lots show up when doing ./trun. But nothing when doing ./start.

Re: Capture System.out.println output in tesb.log

Anonymous — Mon, 21 Aug 2017 15:12:36 GMT

It is a poor solution but with a TlogRow, you can get logs in Karaf...

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 15:13:44 GMT

I will try that.

Re: Capture System.out.println output in tesb.log

Anonymous — Mon, 21 Aug 2017 15:15:03 GMT

You might see the sysouts in wrapper.log if you start as a Service

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 15:38:04 GMT

Hmm, this is interesting. Can you share more details on how to get the wrapper and service setup? is there anything on Talend Documentation?

Re: Capture System.out.println output in tesb.log

Anonymous — Mon, 21 Aug 2017 15:40:50 GMT

This should help....

https://help.talend.com/reader/ClncgYgdy5CE3OABbjP7NQ/exEndmX5MGHMto5BeyIMhg

Re: Capture System.out.println output in tesb.log

root — Mon, 21 Aug 2017 16:02:59 GMT

Thank you so much. I will try to implement and see if this solves my problem!