IdentifyMimeType - Apache NiFi

General

Developer

Processors

Controller Services

Reporting Tasks

Parameter Providers

Flow Analysis Rules

IdentifyMimeType 2.4.0

Bundle: org.apache.nifi | nifi-standard-nar
Description: 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. If the MIME Type detected is of type text/*, attempts to identify the charset used and an attribute with the name 'mime.charset' is added with the value being the charset.
Tags: MIME, bzip2, compression, file, gzip, identify, mime.type, zip
Input Requirement: REQUIRED
Supports Sensitive Dynamic Properties: false

Additional Details for IdentifyMimeType 2.4.0
IdentifyMimeType

The following is a non-exhaustive list of MIME Types detected by default in NiFi:
- application/gzip
- application/bzip2
- application/flowfile-v3
- application/flowfile-v1
- application/xml
- video/mp4
- video/x-m4v
- video/mp4a-latm
- video/quicktime
- video/mpeg
- audio/wav
- audio/mp3
- image/bmp
- image/png
- image/jpg
- image/gif
- image/tif
- application/vnd.ms-works
- application/msexcel
- application/mspowerpoint
- application/msaccess
- application/x-ms-wmv
- application/pdf
- application/x-rpm
- application/tar
- application/x-7z-compressed
- application/java-archive
- application/zip
- application/x-lzh
An example value for the “Custom MIME Configuration” property that will identify a file whose contents start with “abcd” as MIME Type " custom/abcd" and with extension “.abcd” would look like the following:
```
<?xml version="1.0" encoding="UTF-8"?>
<mime-info>
    <mime-type type="custom/abcd">
        <magic priority="50">
            <match value="abcd" type="string" offset="0"/>
        </magic>
        <glob pattern="\*.abcd"/>
    </mime-type>
</mime-info>
```
For a more complete list of Tika’s default types (and additional details regarding customization of the value for the “Custom MIME Configuration” property), please refer to Apache Tika’s documentation

Properties

Config Strategy
Select the loading strategy for MIME Type configuration to be used.
Display Name

Config Strategy

Description

Select the loading strategy for MIME Type configuration to be used.

API Name

config-strategy

Default Value

Preset

Allowable Values
- Preset
- Replace
- Merge
Expression Language Scope

Not Supported

Sensitive

false

Required

true
Custom MIME Configuration
A URL or file path to a custom Tika Mime type configuration or the actual content of a custom Tika Mime type configuration.
Display Name

Custom MIME Configuration

Description

A URL or file path to a custom Tika Mime type configuration or the actual content of a custom Tika Mime type configuration.

API Name

Custom MIME Configuration

Expression Language Scope

Not Supported

Sensitive

false

Required

true

Dependencies
- Config Strategy is set to any of [Merge, Replace]
Use Filename In Detection
If true will pass the filename to Tika to aid in detection.
Display Name

Use Filename In Detection

Description

If true will pass the filename to Tika to aid in detection.

API Name

use-filename-in-detection

Default Value

true

Allowable Values
- true
- false
Expression Language Scope

Not Supported

Sensitive

false

Required

true

Relationships

Name	Description
success	All FlowFiles are routed to success

Writes Attributes

Name	Description
mime.type	This 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
mime.extension	This Processor sets the FlowFile's mime.extension attribute to the file extension associated with the detected MIME Type. If there is no correlated extension, the attribute's value will be empty
mime.charset	This Processor sets the FlowFile's mime.charset attribute to the detected charset. If unable to detect the charset or the detected MIME type is not of type text/*, the attribute will not be set