JoltTransformJSON 2.3.0¶

BUNDLE¶

org.apache.nifi | nifi-jolt-nar

DESCRIPTION¶

Applies a list of Jolt specifications to the flowfile JSON payload. A new FlowFile is created with transformed content and is routed to the ‘success’ relationship. If the JSON transform fails, the original FlowFile is routed to the ‘failure’ relationship.

TAGS¶

cardinality, chainr, defaultr, jolt, json, removr, shiftr, sort, transform

INPUT REQUIREMENT¶

REQUIRED

Supports Sensitive Dynamic Properties¶

false

PROPERTIES¶

Property

Description

Custom Module Directory

Comma-separated list of paths to files and/or directories which contain modules containing custom transformations (that are not included on NiFi’s classpath).

Custom Transformation Class Name

Fully Qualified Class Name for Custom Transformation

Jolt Specification

Jolt Specification for transformation of JSON data. The value for this property may be the text of a Jolt specification or the path to a file containing a Jolt specification. ‘Jolt Specification’ must be set, or the value is ignored if the Jolt Sort Transformation is selected.

Jolt Transform

Specifies the Jolt Transformation that should be used with the provided specification.

Max String Length

The maximum allowed length of a string value when parsing the JSON document

Pretty Print

Apply pretty print formatting to the output of the Jolt transform

Transform Cache Size

Compiling a Jolt Transform can be fairly expensive. Ideally, this will be done only once. However, if the Expression Language is used in the transform, we may need a new Transform for each FlowFile. This value controls how many of those Transforms we cache in memory in order to avoid having to compile the Transform each time.

RELATIONSHIPS¶

NAME

DESCRIPTION

failure

If a FlowFile fails processing for any reason (for example, the FlowFile is not valid JSON), it will be routed to this relationship

success

The FlowFile with transformed content will be routed to this relationship

WRITES ATTRIBUTES¶

NAME

DESCRIPTION

mime.type

Always set to application/json