Message Headers

Solace message headers can be created or manipulated using the User-Configured Header Transforms feature.

Solace Headers

Solace headers exposed to the connector are documented in the Spring Cloud Stream Binder for Solace PubSub+ documentation.

SFTP Source Headers

The following file-related headers are injected into each Solace message. The example values in the following table are for the sub1/sub2/employee.csv file from the SFTP source located at sftp://host:port/rootDirectory/ .

Header Name	Type	Description
`scst_file_name`	`String`	The name of the file (with no leading path), for example: employee.csv
`scst_file_absolute_path`	`String`	The local absolute path to the file. In the example, the file is downloaded to the local working directory `/tmp/.solace/input-0/`, so the absolute path is: /tmp/.solace/input-0/sub1/sub2/employee.csv
`scst_file_relative_path`	`String`	The path of the file relative to the root directory of the SFTP source, for example: sub1/sub2/employee.csv
`scst_file_parent`	`String`	The parent directory of the file, for example: sub1/sub2/
`scst_file_length`	`String`	A long (converted to String) value containing the file size, for example, `2538657`.
`scst_file_last_modified`	`String`	A long (converted to String) value, representing the last modified time in milliseconds, for example, `1728345600000` (that is, 2024-10-08, 12:00 AM).
`scst_event_offset`	`String`	The offset of the event in the file, for example, `5` (for the 5th event in the file). For a file with headers, the offset starts at 1 for the first data line.

Reserved Message Headers

The following are reserved header spaces:

solace_
scst_
Any headers defined by the core Spring messaging framework. For more information, see Spring Integration: Message Headers.

Any headers with these prefixes (that are not defined by the connector or any technology used by the connector) may not be backwards compatible in future versions of this connector.

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