Default Tenant / Namespace

Pulsar has built-in support for multi-tenancy. When producing or consuming messages in Pulsar, the specified topic is actually a topic URL of the following format:

The URL dictates which tenant and namespace the operation is targeted against. However, when not fully-qualified (i.e. only topic name is specified), the default tenant of public and namespace of default is used.

Spring for Apache Pulsar allows you to specify a default tenant and/or namespace to use when producing or consuming messages against a non-fully-qualified topic URL.

When using the Spring Boot you can simply set the spring.pulsar.defaults.topic.tenant and spring.pulsar.defaults.topic.namespace application properties to specify these defaults.

If you want to disable this feature, simply set the spring.pulsar.defaults.topic.enabled property to false.

However, if you are instead manually configuring the components, you will have to provide a PulsarTopicBuilder configured with the desired default topic and namespace when constructing the corresponding producer or consumer factory. All default consumer/reader/producer factory implementations (imperative and reactive) allow a topic builder to be specified.