Message Headers

This feature is deprecated and will be removed in a future release. Use the configuration described in Mapping Message Headers and Payloads instead.

Solace and Google Cloud Pub/Sub message headers can be created or manipulated using the User-Configured Header Transforms feature.

Message Header Mappings

The following Google Cloud Pub/Sub PubsubMessage attributes are mapped to Solace message properties:

Header Name Type Access Description

Header Name	Type	Access	Description
`gcp_pubsub_message_id`	`string`	Read	The ID of the message, assigned by the Google Cloud Pub/Sub service when the message is published. See Google Cloud Pub/Sub PubsubMessage.getMessageId().
`gcp_pubsub_publish_time`	`long(seconds)`	Read	The time at which the message was published, populated by the Google Cloud Pub/Sub service when it receives the Publish call. See Google Cloud Pub/Sub PubsubMessage.getPublishTime().
`gcp_pubsub_ordering_key`	`string`	Read	The Google Cloud Pub/Sub message’s ordering key. See Google Cloud Pub/Sub PubsubMessage.getOrderingKey().

gcp_pubsub_message_id

string

Read

The ID of the message, assigned by the Google Cloud Pub/Sub service when the message is published. See Google Cloud Pub/Sub PubsubMessage.getMessageId().

gcp_pubsub_publish_time

long(seconds)

Read

The time at which the message was published, populated by the Google Cloud Pub/Sub service when it receives the Publish call.

See Google Cloud Pub/Sub PubsubMessage.getPublishTime().

gcp_pubsub_ordering_key

string

Read

The Google Cloud Pub/Sub message’s ordering key. See Google Cloud Pub/Sub PubsubMessage.getOrderingKey().

The following Solace message headers marked with Read access are automatically forwarded to Google Cloud Pub/Sub messages, while headers with Write access can be set using the User-Configured Header Transforms feature.

Header Name	Type	Access	Description
`solace_applicationMessageId`	`string`	Read/Write	The application provided message ID.
`solace_applicationMessageType`	`string`	Read/Write	The application provided message type. This value is used by applications only.
`solace_correlationId`	`string`	Read/Write	The correlation ID for the message.
`solace_dmqEligible`	`boolean`	Write	Set the Solace message’s `dmqEligible` header.
`solace_expiration`	`long`	Write	Set the time at which the Solace message is set to expire.
`solace_priority`	`int`	Write	Set the Solace message’s priority.
`solace_senderId`	`string`	Read	The `Sender ID` for the Solace message.
`solace_senderTimestamp`	`long`	Read	The time at which the Solace message was published.
`solace_sequenceNumber`	`string`	Read	The application-defined sequence number set on the Solace message.

Reserved Message Headers

The following are reserved header spaces:

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

Headers with these prefixes may not be backwards compatible in future versions of this Micro-Integration, even if they are not currently defined by the Micro-Integration or any technology used by the Micro-Integration.

Provide feedback