August 17, 2023

tPaloRule – Docs for ESB 5.x

tPaloRule

tPaloRule_icon32.png

tPaloRule Properties

Component family

Business Intelligence/Cube OLAP/Palo

 

Function

This component creates or modifies rules in a given cube.

Purpose

This component allows you to manage rules in a given cube.

Basic settings

Use an existing connection

Select this check box and in the Component List click the
relevant connection component to reuse the connection details you already defined.

Note

When a Job contains the parent Job and the child Job, Component
list
presents only the connection components in the same Job
level.

Connection configuration

Note

Unavailable when using an existing connection.

Host Name

Enter the host name or the IP address of the host server.

 

Server Port

Type in the listening port number of the Palo server.

 

Username and
Password

Enter the Palo user authentication data.

To enter the password, click the […] button next to the
password field, and then in the pop-up dialog box enter the password between double quotes
and click OK to save the settings.

 

Database

Type in the name of the database where the dimensions applying the
rules of interest reside.

 

Cube

Type in the name of the cube whose dimension information is
retrieved.

 

Cube rules

Complete this table to perform various actions on specific
rules.

Definition: type in the rule to be
applied.

 

 

External Id: type in the
user-defined external ID.

 

 

Comment: type in comment for this
rule.

 

 

Activated: select this check box
to activate this rule.

 

 

Action: select the action to be
performed from the drop-down list.

Create: create this
rule.

Delete: delete this
rule.

Update: update this
rule.

Advanced settings

tStat
Catcher Statistics

Select this check box to collect log data at the component
level.

Connections

Outgoing links (from this component to another):

Trigger: Run if; On Subjob Ok; On
Subjob Error; On Component Ok; On Component Error.

Incoming links (from one component to this one):

Row: Iterate

Trigger: Run if; On Subjob Ok; On
Subjob Error; On Component Ok; On Component Error.

For further information regarding connections, see
Talend Studio User
Guide
.

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 can be used in standalone for rule creation,
deletion or update.

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

Update or deletion of a rule is available only when this rule has
been created with external ID.

Due to license incompatibility, one or more JARs required to use this component are not
provided. You can install the missing JARs for this particular component by clicking the
Install button on the Component tab view. You can also find out and add all missing JARs easily on
the Modules tab in the Integration perspective
of your studio. For details, see https://help.talend.com/display/KB/How+to+install+external+modules+in+the+Talend+products
or the section describing how to configure the Studio in the Talend Installation and Upgrade
Guide
.

Scenario: Creating a rule in a given cube

The Job in this scenario creates a rule applied on dimensions of a given cube.

Use_Case_tPaloRule1.png

To replicate this scenario, proceed as follows:

Setting up the DB connection

  1. Drop tPaloRule from the component
    Palette onto the design
    workspace.

  2. Double-click the tPaloRule component to
    open its Component view.

    Use_Case_tPaloRule2.png
  3. In the Host name field, type in the host
    name or the IP address of the host server, localhost
    for this example.

  4. In the Server Port field, type in the
    listening port number of the Palo server. In this scenario, it is
    7777.

  5. In the Username field and the Password field, type in the authentication
    information. In this example, both of them are
    admin.

  6. In the Database field, type in the
    database name in which the dimensions applying the created rules reside,
    Biker in this example.

  7. In the Cube field, type in the name of
    the cube which the dimensions applying the created rules belong to, for
    example, Orders.

Setting the Cube rules

  1. Under the Cube rules table, click the
    plus button to add a new row.

  2. In the Cube rules table, type in
    ['2009'] = 123 in the Definition column, OrderRule1 in the External Id column and Palo Demo
    Rules
    in the Comment column.

  3. In the Activated column, select the check
    box.

  4. In the Action column, select Create from the drop-down list.

Job execution

Press F6 to run the Job.

The new rule has been created and the value of every 2009
element is 123.

Use_Case_tPaloRule3.png

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