topic Re: [resolved] How can I turn off the tMongoDBRow stdout log messages? in Talend Studio

[resolved] How can I turn off the tMongoDBRow stdout log messages?

Anonymous — Sat, 16 Nov 2024 11:31:10 GMT

All of the mongo components print out a large amount of information to stdout. How may I turn this off ?
EDIT --
Sorry I just realized that its only the tMongoDBRow component, not the others. See the below post.

Re: [resolved] How can I turn off the tMongoDBRow stdout log messages?

Anonymous — Wed, 03 Sep 2014 04:10:20 GMT

Hi,
What's kind of information printed on console? Did you turn on tlogCatcher or tStatCatcher? Could you please upload screenshots into forum?
Best regards
Sabrina

Re: [resolved] How can I turn off the tMongoDBRow stdout log messages?

Anonymous — Thu, 04 Sep 2014 07:10:13 GMT

Hi,
What's kind of information printed on console? Did you turn on tlogCatcher or tStatCatcher? Could you please upload screenshots into forum?
Best regards
Sabrina

Hi Sabrina. I do not have a tLogCatcher or tStatCatcher turned on.
--- EDIT
I figured out that it was the tMongoDBRow component that prints everything to the console, and not the other mongodb components.
In this tMongoDBRow, I'm simply inserting a {'foo':'bar'} document into a collection, and get a lot of noise in the stdout:

If I take a look at the code and search for "System.out.println", I come to this portion which must be the culprit:

	 *  stop
				 */
				/**
				 *  start
				 */
				currentComponent = "tMongoDBRow_1";
				com.mongodb.Mongo mongo_tMongoDBRow_1 = null;
				com.mongodb.DB db_tMongoDBRow_1 = null;
				try {
					mongo_tMongoDBRow_1 = (com.mongodb.Mongo) globalMap
							.get("mongo_tMongoDBConnection_1");
					db_tMongoDBRow_1 = (com.mongodb.DB) globalMap
							.get("db_tMongoDBConnection_1");
					com.mongodb.CommandResult result_tMongoDBRow_1 = null;
					result_tMongoDBRow_1 = db_tMongoDBRow_1
							.doEval("db.test.insert({'foo':'bar'})");
					if (result_tMongoDBRow_1.ok()) {
						System.out.println(result_tMongoDBRow_1);
					} else {
						System.err.println(result_tMongoDBRow_1);
					}
				} catch (Exception e_tMongoDBRow_1) {
					System.err.println(e_tMongoDBRow_1.getMessage());
				}
				tos_count_tMongoDBRow_1++;
				/**
				 *  stop
				 */
				/**
				 *  start
				 */

Specifically, this piece:

if (result_tMongoDBRow_1.ok()) {
						System.out.println(result_tMongoDBRow_1);
					} else {
						System.err.println(result_tMongoDBRow_1);
					}

I don't think its necessary to print to standard out when everything is OK. Perhaps there should be an option in the tMongoDBRow component to print debugging messages, instead.

Re: [resolved] How can I turn off the tMongoDBRow stdout log messages?

Anonymous — Fri, 12 Sep 2014 07:04:39 GMT

Ok, here is a temporary workaround.
Create a job that you will use as a subjob from now on every time you wish to use a tMongoDBRow without having it print to stdout.
Create a context variable of type String called "mongo string".
Add a tMongoDBConnection-->tJava-->tMongoDBRow-->tJava like so:

In the first tJava before the tMongoDBRow, redirect stdout to nothing with the following:

System.setOut(new java.io.PrintStream(new java.io.ByteArrayOutputStream()));

In the tMongoDBRow, set the function to context.mongo_string.

In the last tJava, direct stdout to the default via:

System.setOut(new java.io.PrintStream(new java.io.FileOutputStream(java.io.FileDescriptor.out)));

Now when you run the job, the stdout logging messages will be supressed:

This works but I think that there should be a check box allowing the user to chose whether these messages should be printed or not.