Syntax:

com.ibi.agents.XDAvroFileEmitAgent

Description:

This service converts an XML document into Avro binary format and writes the result in an Avro container file. The input document must follow the conventions of the XML representation documented with the Avro File Read service.

The root element in the input document can be <av:avro>, in which case multiple objects will be written to the container, one per <av:item> sub-element. If the root element is <av:item>, a single object will be written to the container. Any other root element will cause a failure. The av prefix stands for the XML Namespace http://iwaysoftware.com/avro. The actual name of the prefix is immaterial.

Avro requires the presence of a schema. The Avro File Emit service can use the schema specified in its parameter, or it can use the schema stored in the input document as the default. The only way to store a schema in the document is to use another Avro component that produces XML, for example the Avro File listener, the Avro File Read service or the Avro File Iterator service.

Parameters:

The following table describes the parameters of the Avro File Emit service.

Parameter	Description
Avro Schema	Path to the Avro Schema file. If absent, the schema stored with the document will be used.
Target Directory	The target output directory.
File Pattern	The output file name, which can contain an asterisk (*) which gets expanded to a fine timestamp.
Avoid Preemitter	Indicate which preemitter(s) should be avoided.
Return	Whether the out document will be the input document or a status document
Respect Transactionality	If set, the emit respects the transactionality of the channel. If not set, the emit is always done.

Edges:

The following table describes the edges that are returned by the Avro File Emit service.

Edge	Description
success	The Avro data was successfully converted to XML.
fail_parse	An iFL expression could not be evaluated.
fail_operation	The operation could not be completed successfully.