Lifetime File Variable

Camunda 7 Topics Discussion & Questions
2

Basically in camunda, The type file can be used to store the contents of a file or input stream along with metadata such as a file name, an encoding, and the MIME type the file contents correspond to.

Files can be persisted as BLOBs in the database. The file value type allows to store additional metadata such as a file name and a mime type along with it.

FileValue typedFileValue = Variables
  .fileValue("addresses.txt")
  .file(new File("path/to/the/file.txt"))
  .mimeType("text/plain")
  .encoding("UTF-8")
  .create();
runtimeService.setVariable(execution.getId(), "fileVariable", typedFileValue);

FileValue retrievedTypedFileValue = runtimeService.getVariableTyped(execution.getId(), "fileVariable");
InputStream fileContent = retrievedTypedFileValue.getValue(); // a byte stream of the file contents
String fileName = retrievedTypedFileValue.getFilename(); // equals "addresses.txt"
String mimeType = retrievedTypedFileValue.getMimeType(); // equals "text/plain"
String encoding = retrievedTypedFileValue.getEncoding(); // equals "UTF-8"

Refer this post regarding file storage: