tFileDelete

Deletes files from a given directory.

tFileDelete Standard properties

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

The Standard
tFileDelete component belongs to the File family.

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

Basic settings

File Name	Path to the file to be deleted. This field is hidden when you select the Delete folder check box or the Delete file or folder check box. Warning: Use absolute path (instead of relative path) for this field to avoid possible errors.
Directory	Path to the folder to be deleted. This field is available only when you select the Delete folder check box. Warning: Use absolute path (instead of relative path) for this field to avoid possible errors.
File or directory to delete	Enter the path to the file or to the folder you want to delete. This field is available only when you select the Delete file or folder check box. Warning: Use absolute path (instead of relative path) for this field to avoid possible errors.
Fail on error	Select this check box to prevent the main Job from being executed if an error occurs, for example, if the file to be deleted does not exist.
Delete Folder	Select this check box to display the Directory field, where you can indicate the path the folder to be deleted.
Delete file or folder	Select this check box to display the File or directory to delete field, where you can indicate the path to the file or to the folder you want to delete.

Advanced settings

tStatCatcher Statistics	Select this check box to gather the Job processing metadata at a Job level as well as at each component level.

Global Variables

Global Variables	DELETE_PATH: the path to the deleted file or folder. This is an After variable and it returns a string. CURRENT_STATUS: the execution result of the component. This is a Flow variable and it returns a string. 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.

DELETE_PATH: the path to the deleted file or folder. This
is an After variable and it returns a string.

CURRENT_STATUS: the execution result of the component.
This is a Flow variable and it returns a string.

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

Usage rule	This component can be used as standalone component.
Connections	Outgoing links (from this component to another): Row: Main. Trigger: On Subjob Ok; On Subjob Error; Run if; On Component Ok; On Component Error. Incoming links (from one component to this one): Row: Main; Reject; Iterate. Trigger: Run if; On Subjob Ok; On Subjob Error; On component Ok; On Component Error; Synchronize; Parallelize. For further information regarding connections, see Talend Studio User Guide.

Usage rule

This component can be used as standalone component.

Connections

Outgoing links (from this component to another):

Row: Main.

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

Incoming links (from one component to this one):

Row: Main; Reject; Iterate.

Trigger: Run if; On Subjob Ok; On
Subjob Error; On component Ok; On Component Error; Synchronize;
Parallelize.

For further information regarding connections, see

Talend Studio

User
Guide.

Deleting files

This very simple scenario describes a Job deleting files from a given
directory.

Procedure

Drop the following components: tFileList,
tFileDelete, tJava from the Palette to the
design workspace.
In the tFileList
Basic settings, set the directory to loop on in
the Directory field.
The filemask is “*.txt” and no case check is to carry
out.
In the tFileDelete
Basic settings panel, set the File Name field in order for the current file in
selection in the tFileList component be
deleted. This delete all files contained in the directory, as specified
earlier.
press Ctrl+Space bar to access the list of
global variables. In Java, the relevant variable to collect the current file is:
((String)globalMap.get(“tFileList_1_CURRENT_FILEPATH”)).
Then in the tJava component, define the
message to be displayed in the standard output (Run console). In this Java use
case, type in the Code field, the following script: System.out.println(
((String)globalMap.get(“tFileList_1_CURRENT_FILE”))

+ ” has been deleted!” );
Then save your Job and press F6 to run
it.

The message set in the tJava component displays in
the log, for each file that has been deleted through the tFileDelete component.

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

Thank you for watching.

Docs 7.x

0 Comments

Inline Feedbacks

View all comments

tFileDelete – Docs for ESB 7.x