Transfer Files

Options

Read from

Select a file system which stores the files/folders you want to copy/move. There are four default file system options to choose from:

• Local File System: Allows you to select a file/folder from your local system.
• Mountpoint: Allows you to read from a mountpoint.When selected, a new drop-down menu appears to choose the mountpoint. Unconnected mountpoints are greyed out but can still be selected (note that browsing is disabled in this case). Go to the KNIME Explorer and connect to the mountpoint to enable browsing. A mountpoint is displayed in red if it was previously selected but is no longer available. You won't be able to save the dialog as long as you don't select a valid i.e. known mountpoint.
• Relative to: Allows you to choose whether to resolve the path relative to the current mountpoint, current workflow or the current workflow's data area. When selected a new drop-down menu appears to choose which of the three options to use.
• Custom/KNIME URL: Allows to specify a URL (e.g. file://, http:// or knime://protocol). When selected, a spinner appears that allows you to specify the desired connection and read timeout in milliseconds. In case it takes longer to connect to the host / read the file, the node fails to execute.Browsing is disabled for this option.

To copy/move a file/folder from other file systems, click on ... in the bottom left corner of the node icon followed by Source File System Connection. Afterwards, connect the desired file system connector node to the newly added input port. The file system connection will then be shown in the drop-down menu. It is greyed out if the file system is not connected in which case you have to (re)execute the connector node first. Note: The default file systems listed above can't be selected if a file system is provided via the input port
The location can be exposed as or automatically set via a path flow variable..

Mode

There are three different file/folder modes available:

• File: Copies a single file.
• Folder: Copies a single folder with all its files and the underlying folder structure.
• Files in folder: Copies the files in a folder and creates the necessary folder structure as in the source folder.

Filter options

Only displayed if the mode Files in folder is selected. Allows to specify which files should be included according to their file extension and/or name.It is also possible to include hidden files. The folder filter options enable you to specify which folders should be included based on their name and hidden status. Note that only folders in the file paths of the selected files will be copied.

Include subfolders

If this option is checked, the node will include all files from subfolders that satisfy the specified filter options. If left unchecked, only the files in the selected folder will be included and all files from subfolders are ignored.

Write to

This option allows you to specify a folder where you want to copy your file, files or folder in the end. This option has got the same options, except for the custom URL option, as the Read from option with regards to the file system options.
The location can be exposed as or automatically set via a path flow variable.

Create missing folders

Select if the folders of the selected output location should be created if they do not already exist. If this option is unchecked, the node will fail if a folder does not exist.

Destination file path

Depending on the selected mode the location of the files/folders to be copied to the destination folder will differ.

• Include only the selected file/folder: This mode ensures that the selected file/folder is directly copied into the destination folder.
• Include all folders in the source path: This mode ensures that the folder containing the selected source file/folder will also be created inside the destination folder, i.e., if the source is src_folder/src_subfolder and the destination is dest_folder the content of the source is copied to dest_folder/src_folder/src_subfolder.
• Include all folders in the source path succeeding the prefix: This mode behaves similar to the Include all folders in the source path option, except that the specified folder prefix (the beginning of the path) is being ignored, e.g., if the specified prefix is src_folder the source path is src_folder/src_subfolder, the source is copied to dest_folder/src_subfolder. Note: In special cases using this option can try to copy the source file/folder to a location that is outside the specified destination. In this case the node will fail.

Transfer policy

• Overwrite: Will replace any existing file.
• Overwrite if newer: Will replace any existing file if the source file's last modified date is after the destination file's last modified date, otherwise the file will not be overwritten and the copy process is being continued.
• Ignore: Will ignore if a file already exists and continues the copying process.
• Fail: Will issue an error during the node's execution (to prevent unintentional overwrite).

Delete source files / folders

If this option is checked all files which have been successfully copied to the destination folder will be deleted in the source folder. The output contains an additional column indicating if the file has been deleted (true) or not (false).

Fail on unsuccessful deletion

If the 'Delete source files (move)' option is activated and something goes wrong during the deletion process the node will fail. This option is only available if the before mentioned option is selected.

Detailed output

If selected the output will not only show the folder that has been copied/moved but also all the files/folders it contains.

Views

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Workflows

• 00_Download_DatasetKNIME Hub
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• 01_KNIME_to_AWS_with_Boto3KNIME Hub
• 01_Restaurant_Orders_ETL_Developement_Orders_and_InspectionKNIME Hub
• 01b Production data pipeline - TriggerKNIME Hub
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Links

• Download all files (multiple formats: zip, txt) from webpage - into local folder using a loopby qqilihq on 2022-07-18

  forum.knime.com/p/163544

Developers