OIC Gen3 - Stage file action

Stage or vfs or virtual file system is a temporary location in the oic local file system which stores temporary files required for processing in an oic instance. It provides a file reference to the file which we can use to access the data or file content.

Stage file action operations:

1. List Files
2. Unzip file
3. Zip file
4. Decrypt file
5. Encrypt file
6. Write file
7. Read entire file
8. Read file in segments

Points to remember:

1. To decrypt use private and to encrypt use public PGP keys. First we need to upload pgp keys in oic certificates sction, so that we can use them later in stage action.
2. To read or write file schema configuration options, EDI document is also avaiable along with csv, json, xsd, xml document (single or no namespace)
3. To write file with schema option,it supports max 10mb file size.
4. To write file reference or opaque file. We have to use a opaque xsd as sample file. And in the mapper, use encodeReferenceToBase64() function to convert from reference to base64 content.
5. OIC automatically handles the creation, deletion and cleanup of the temprary files in the vfs or local file system. When the instance gets completed, the files in vfs will be flashed out.
6.  To "read file in segments", it supports min segment size: 200 and max segment size: 2000.
7. To "read file in segements", it does not support json sample for schema options.
8. To "read file in segments", by deafult, the rows are processing in parallel. To process in sequentially, select the check box for sequentialprocessing.
9. To "read file in segments", remove trailer only supports for csv file. We can do remove "last n rows"  or "last row" of the file.
10. In stage, it can store file size max upto 1 gb file.
11. Csv, json, or xml format file or data what ever we are trying to write or read, internally it is translated to xml structure, thats why if we open mapper, will see it as xml in both source or target points.