tRSSInput

Reads RSS-Feeds using URLs.

tRSSInput makes it possible to keep track of blog entries on websites to gather
and organize information for quick and easy access.

tRSSInput Standard properties

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

The Standard
tRSSInput component belongs to the Internet family.

The component in this framework is available in all Talend
products.

Basic settings

Schema and Edit Schema	A schema is a row description, it defines the number of fields to be processed and passed on to the next component. The tRSSInput component has a read-only schema that is made of four columns: TITLE, DESCRIPTION, PUBDATE, and Link.
RSS URL	Enter the URL for the RSS_Feed to read.
Read articles from	If selected, tRSSInput reads articles on the RSS_Feed from the date set through the three-dot […] button next to the date time field.
Max number of articles	If selected, tRSSInput reads as many articles as the number entered in the max amount field.
Die on error	This check box is selected by default. Clear the check box to skip the row on error and complete the process for error-free rows.

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. NB_LINE: the number of rows read by an input component or transferred to an output component. This is an After variable and it returns an integer. 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.

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.

NB_LINE: the number of rows read by an input component or
transferred to an output component. This is an After variable and it returns an
integer.

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

Usage rule	This component is generally used as an input component. It requires an output component.
Limitation	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. You can find more details about how to install external modules in Talend Help Center (https://help.talend.com).

Usage rule

This component is generally used as an input component. It
requires an output component.

Limitation

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. You can find more details about how to install external modules in
Talend Help Center (https://help.talend.com).

Fetching frequently updated blog entries.

This two-component scenario aims at retrieving frequently updated blog entries from a

Talend
local news RSS feed using the tRSSInput component.

Procedure

Drop the following components from the Palette onto the design workspace: tRSSInput and tLogRow.
Right-click to connect them using a Row >
Main link.
In the design workspace, select tRSSInput,
and click the Component tab to define the basic
settings for tRSSInput.
Enter the URL for the RSS_Feed to access. In this scenario, tRSSInput links to the
Talend
RSS_Feed:
http://feeds.feedburner.com/Talend
.
Select/clear the other check boxes as required. In this scenario, we want to
display the information about two articles dated from July 20, 2008.
In the design workspace, select tLogRow and
click the Component tab to define its basic
settings. For more information about tLogRow
properties, see tLogRow Standard properties.
Save the Job and press F6 to execute
it.

The tRSSInput component accessed the RSS feed
of
Talend
website on your behalf and organized the
information for you.

Two blog entries are displayed on the console. Each entry has its own title,
description, publication date, and the corresponding RSS feed URL address. Blogs
show the last entry first, and you can scroll down to read earlier
entries.

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

Thank you for watching.

Docs 7.x

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tRSSInput – Docs for ESB 7.x