tStatCatcher

tStatCatcher Properties

Component family	Logs & Errors
Function	Based on the pre-defined schema, tStatCatcher gathers the Job processing metadata at the Job level and at the component level when the tStatCatcher Statistics check box is selected.
Purpose	Gathers the Job processing metadata at the Job level and at the component level when the tStatCatcher Statistics check box is selected and transfers the log data to the subsequent component for display or storage.
Basic settings	Schema	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 date
		Pid: Process ID
		Father_pid: Process ID of the father Job if applicable. If not applicable, Pid is duplicated.
		Root_pid: Process ID of the root Job if applicable. If not applicable, pid of current Job is duplicated.
		System_pid: Thread ID.
		Project: Project name, which the Job belongs to.
		Job: Name of the current Job
		Job_repository_id: ID of the Job’s .item file stored in the repository.
		Job_version: Version of the current Job.
		Context: Name of the current context
		Origin: Name of the component if any
		Message_type: Begin or End.
		Message: Success or Failure.
		Duration: Time for the execution of a Job or a component with the tStatCatcher Statistics check box selected.
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 + Space to access the variable list and choose the variable to use from it. For further information about variables, see Talend Studio User Guide.
Usage	This component is the start component of a secondary Job which triggers automatically at the end of the main Job. The processing time is also displayed at the end of the log.
Log4j	The activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User Guide. For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.
Limitation	n/a

Scenario: Displaying the statistics log of Job execution

This scenario collects the statistics log for the Job execution and displays it on the
Run console. Note that, since the tStatCatcher
Statistics check box is not selected for the components, the statistics log applies
solely to this specific Job.

Linking the components

Drop tFixedFlowInput, tFileOutputDelimited, tStatCatcher and tLogRow
onto the workspace.
Link tFixedFlowInput to tFileOutputDelimited using a Row > Main
connection.
Link tStatCatcher to tLogRow using a Row > Main
connection.

Configuring the components

Double-click tFixedFlowInput to open its
Basic settings view.
Click the Edit schema button to open the
schema editor.
Click the [+] button to add three
columns, namely ID_Owners, Name_Customer and ID_Insurance, of the Integer and String types respectively.
Click Ok to validate the setup and close
the editor.
In the dialog box that appears, click Yes
to propagate the changes to the subsequent component.
Select the Use Inline Content (delimited
file) option.
In the Content box, enter
1;Andrew;888.
Double-click tFileOutputDelimited to open
its Basic settings view.
In the File Name field, enter the full
name of the file to save the statistics data.
Double-click tLogRow to open its
Basic settings view.
Select Vertical (each row is a key/value
list) for a better display of the results.

Executing the Job

Press Ctrl + S to save the Job.
Press F6 to run the Job.

As shown above, the statistics log of the Job execution is correctly
generated.

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

Thank you for watching.

Docs 5.x

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tStatCatcher – Docs for ESB 5.x