Handle common aspects of message-channel binders:
- added generic, customizable ReceivingHandler and SendingHandler
- made doBindProducer delegate to a series of template methods
- made doBindConsumer delegate to a series of template methods
- moved partitioning to an interceptor, thus fixing #493
Removed unused manual ack handling
- Change the Binder interface to support ConsumerProperties/ProducerProperties beans and subclasses
- Binders can subclass the property beans to add new supported properties that will be automatically populated
- Spring Cloud Stream will infer the target type and populate the beans from the environment based on a `spring.cloud.stream.bindings..<bindingName>` prefix
- Remove binder defaults and retain only general binder configurations
TODO: a) decide on instanceIndex/partitionIndex alignment (we do not need both)
b) support `defaultProducer`/`defaultConsumer` properties
c) add leniency control on binding (fail/ignore for unknown properties)
d) add a `requiredProperties` configuration for consumer/producer properties to finely tune the mandatory properties expected to be supported by a bound application
Changes made during review:
- Add support for consumer and producer defaults
- Remove partitionIndex, keeping only instanceIndex
- Fix default properties for Kafka binder
- Move batching properties to Rabbit only
Resolves#330
- removes `unbind` from the binder and moves it to the `Binding` instance itself;
- `Binding` is now an interface with a default implementation provided by SCS
- Removed all methods from Binder except for unbind()
- Removed old and unused code
- Removed circular reference between default Binder and Binding implementations
- Removed Binder type
Required by scsm-88.
If `dynamicDestinations` is not zero length, only dynamically bind if
the channel is is in the list.
Polishing - Test Support for Dynamic Bindings
* removed pub/sub methods from binder
* consumer group is now a parameter of the remaining bindConsumer method
* remove DynamicProducer from Binder
* Move logic to create the dynamic channel to the channel resolver.
* Return bindings from bind methods and use them for unbinding
* Suffix for dlq
Move All Rabbit Binder CleanUp to Test Bindera
More RabbitMQ Binder Test Cleanup
Clean up declarations for remaining tests.
removed BinderUtils
use Redis ZSET for consumer groups
copyright dates
AutoBindDLQ: Single DLQ Per Group When Partitioned
Configure a single DLQ for each group for all partitions.
Add DLX Exchange binding for each original queue routing key, including the partition.
Fix DLQ Binding (Producer Side)
Option was not allowed and the routing key was wrong.
Add test to verify producers can be bound before consumers.
`autoBindDLQ` must be set (or reset) on both sides for success.
- Addresses #138,#172,#173 with support for multiple binders in an application
- Binders can be of multiple types (e.g. Rabbit or Kafka), as well as multiple binders of the same type connecting to different system (e.g. multiple Rabbit binders connecting to different Rabbit clusters)
- Binders are now created in a separate context, allowing for multiple configurations
- Adds the `spring.cloud.spring.binders` namespace that allows for creating configuration properties for multiple binders
- Add support for default binder, modify Kafka tests to use multiple brokers when running embedded
- instead of publishing to the default exchange, producers now publish to a topic exchange, to which the main queue is bound
- taps on a stream simply bind a queue to the same exchange with a name including the group for the tapping stream and a
routing key pattern `#`
- this means that multiple instances of the same tap stream will compete but multiple tap streams will get a copy
- for partitioned data, a single topic exchange is used, which each partition queue bound with its name as the routing key
- this means taps on partitioned data see the consolidated messages
Remove unused binder utilities.
Use TopicExchange Always
Use a TopicExchange when binding a pubSub producer for consistency.
Remove Deprecated Binder Method
Add group to BindingProperties
- also fix artifact name in test support pom
- also fix some kafka tests (does not imply that kafka taps work - yet)
* renamed @ModuleChannels to @Bindings
* moved Source, Sink, and Processor to the `org.springframework.cloud.stream.messaging` package
* updated documentation
