July 30, 2023

tAssertCatcher – Docs for ESB 7.x


Generates a data flow consolidating the status information of a
job execution and transfer the data into defined output

Based on its pre-defined schema,
tAssertCatcher fetches the execution status information from
repository, Job execution and tAssert.

tAssertCatcher Standard properties

These properties are used to configure tAssertCatcher running in the Standard Job framework.

The Standard
tAssertCatcher component belongs to the Logs & Errors family.

The component in this framework is available in all Talend

Basic settings

Schema and Edit

A schema is a row description, it defines the fields to be
processed and passed on to the next component. In this particular
case, the schema is read-only, as this component gathers standard
log information including:


Moment: Processing time and


Pid: Process ID.


Project: Project which the job
belongs to.


Job: Job name.


Language: Language used by the
Job (Java)


Origin: Status evaluation origin.
The origin may be different tAssert


Status: Evaluation fetched
from tAssert. They may

Ok: if the assertive statement
of tAssert is evaluated as true at

Failed: if the assertive
statement of tAssert is evaluated
as false or an execution error occurs at runtime. The tested Job’s
result does not match the expectation or an execution error occured
at runtime.


Substatus: Detailed explanation
for failed execution. The explanation can be:

Test logically failed: the
investigated Job does not produce the expected result.

Execution error: an execution
error occurred at runtime.


Description: Descriptive message
typed in Basic settings of
tAssert (when Catch tAssert is selected) and/or the
message of the exception captured (when Catch
Java Exception
is selected).


Exception: The Exception object
thrown by the Job, namely the original exception.

Available when Get original
is selected.

Catch Java Exception

This check box allows to capture Java exception errors and show
the message in the Description
column (Get original exception not
selected) or in the Exception
column (Get original exception
selected) column, once checked.

Get original exception

This check box allows to show the original exception object in the
Exception column, once

Available when Catch Java
is selected.

Catch tAssert

This check box allows to capture the evaluations of tAssert.

Global Variables

Global Variables

ERROR_MESSAGE: the error message generated by the
component when an error occurs. This is an After variable and it returns a string. This
variable functions only if the Die on error check box is
cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable
functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl +
to access the variable list and choose the variable to use from it.

For further information about variables, see
Talend Studio

User Guide.


Usage rule

This component is the start component of a secondary Job which
fetches the execution status information from several sources. It
generates a data flow to transfer the information to the component
which proceeds.


This component must be used with tAssert together.

Related scenarios

For using case in relation with tAssertCatcher, see
tAssert scenario:

Document get from Talend https://help.talend.com
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