Package io.axoniq.framework.axonserver.connector.configuration

Class AxonServerConfigurationEnhancer

java.lang.Object

io.axoniq.framework.axonserver.connector.configuration.AxonServerConfigurationEnhancer

All Implemented Interfaces:

ConfigurationEnhancer

public class AxonServerConfigurationEnhancer
extends Object
implements ConfigurationEnhancer

A ConfigurationEnhancer that is auto-loadable by the ApplicationConfigurer, setting sensible defaults when using Axon Server.

Will only register the following components if there is no component registered for the given class yet:

• Registers a default AxonServerConfiguration for class AxonServerConfiguration
• Registers a AxonServerConnectionManager for class AxonServerConnectionManager, connecting to Axon Server on start and disconnecting on shutdown.
• Registers a default ManagedChannelCustomizer (ManagedChannelCustomizer.identity()) for class ManagedChannelCustomizer
• Registers the AxonServerEventStorageEngine for classes EventStorageEngine and SnapshotStore, sharing the same instance for both so snapshot sourcing resolves the snapshot and the events that follow it in a single round trip to Axon Server. When a EventStorageEngine is already registered by the time this enhancer runs (e.g. when you combine Axon Server for snapshots with a different event storage backend) registers the lighter AxonServerSnapshotStore for class SnapshotStore instead
• Registers a AxonServerCommandBusConnector for class CommandBusConnector
• Registers a AxonServerQueryBusConnector for class QueryBusConnector
• Registers a EventProcessorControlService for class EventProcessorControlService

Additionally, registers a AxonServerEventStorageEngineFactory ComponentFactory constructing an AxonServerEventStorageEngine for each named, non-default context requested (named storageEngine@{context}).

Furthermore, this enhancer will decorate the following components:

• The CommandBusConnector in a PayloadConvertingCommandBusConnector, converting payloads using the present MessageConverter.
• The QueryBusConnector in a PayloadConvertingQueryBusConnector, converting payloads using the present MessageConverter.
• The AxonServerConnectionManager, registering a TopologyChangeListener with the ControlChannel of its default context on start, if one is present.

Since:

4.0.0

Author:

Allard Buijze, Steven van Beelen

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ENHANCER_ORDER	The order() when this AxonServerConfigurationEnhancer enhances an ApplicationConfigurer.

Constructor Summary

Constructors

Constructor	Description
AxonServerConfigurationEnhancer()

Method Summary

Modifier and Type	Method	Description
void	enhance(ComponentRegistry registry)	Enhances the given registry with, for example, additional components and decorators.
int	order()	Returns the relative order this enhancer should be invoked in, compared to other instances.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

ENHANCER_ORDER

public static final int ENHANCER_ORDER

The order() when this AxonServerConfigurationEnhancer enhances an ApplicationConfigurer.

See Also:

• Constant Field Values

Constructor Details

AxonServerConfigurationEnhancer

public AxonServerConfigurationEnhancer()

Method Details

enhance

public void enhance(ComponentRegistry registry)

Description copied from interface: ConfigurationEnhancer

Enhances the given registry with, for example, additional components and decorators.

Specified by:

enhance in interface ConfigurationEnhancer

Parameters:

registry - The registry instance to enhance.

order

public int order()

Description copied from interface: ConfigurationEnhancer

Returns the relative order this enhancer should be invoked in, compared to other instances.

Use lower (negative) values for enhancers providing sensible defaults, and higher values for enhancers that should be able to override values potentially previously set. Defaults to 0 when not set.

Specified by:

order in interface ConfigurationEnhancer

Returns:

The order in which this enhancer should be invoked.