Attempts to identify the MIME Type used for a FlowFile. If the MIME Type can be identified, an attribute with the name 'mime.type' is added with the value being the MIME Type. If the MIME Type cannot be determined, the value will be set to 'application/octet-stream'. In addition, the attribute mime.extension will be set if a common file extension for the MIME Type is known.

Additional Details...


compression, gzip, bzip2, zip, MIME, mime.type, file, identify


In the list below, the names of required properties appear in bold. Any other properties (not in bold) are considered optional. The table also indicates any default values.

NameDefault ValueAllowable ValuesDescription
Use Filename In Detectiontrue
  • true
  • false
If true will pass the filename to Tika to aid in detection.


successAll FlowFiles are routed to success

Reads Attributes:

None specified.

Writes Attributes:

mime.typeThis Processor sets the FlowFile's mime.type attribute to the detected MIME Type. If unable to detect the MIME Type, the attribute's value will be set to application/octet-stream

State management:

This component does not store state.


This component is not restricted.

Input requirement:

This component requires an incoming relationship.

System Resource Considerations:

None specified.