Chapter 13. Atomix Messaging Component

Available as of Camel version 2.20

The camel atomix-messaging component allows you to work with Atomix’s Group Messaging.

Maven users will need to add the following dependency to their pom.xml for this component:

    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-atomix</artifactId>
        <version>${camel-version}</version>
    </dependency>

13.1. URI format

    atomix-messaging:group

The Atomix Messaging component supports 5 options which are listed below.

NameDescriptionDefaultType

configuration (common)

The shared component configuration

 

AtomixMessaging Configuration

atomix (common)

The shared AtomixClient instance

 

AtomixClient

nodes (common)

The nodes the AtomixClient should connect to

 

List

configurationUri (common)

The path to the AtomixClient configuration

 

String

resolveProperty Placeholders (advanced)

Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders.

true

boolean

The Atomix Messaging endpoint is configured using URI syntax:

atomix-messaging:resourceName

with the following path and query parameters:

13.1.1. Path Parameters (1 parameters):

NameDescriptionDefaultType

resourceName

Required The distributed resource name

 

String

13.1.2. Query Parameters (19 parameters):

NameDescriptionDefaultType

atomix (common)

The Atomix instance to use

 

Atomix

broadcastType (common)

The broadcast type.

ALL

BroadcastType

channelName (common)

The messaging channel name

 

String

configurationUri (common)

The Atomix configuration uri.

 

String

defaultAction (common)

The default action.

DIRECT

Action

memberName (common)

The Atomix Group member name

 

String

nodes (common)

The address of the nodes composing the cluster.

 

String

resultHeader (common)

The header that wil carry the result.

 

String

transport (common)

Sets the Atomix transport.

io.atomix.catalyst.transport.netty.NettyTransport

Transport

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this options is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

 

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange.

 

ExchangePattern

defaultResourceConfig (advanced)

The cluster wide default resource configuration.

 

Properties

defaultResourceOptions (advanced)

The local default resource options.

 

Properties

ephemeral (advanced)

Sets if the local member should join groups as PersistentMember or not. If set to ephemeral the local member will receive an auto generated ID thus the local one is ignored.

false

boolean

readConsistency (advanced)

The read consistency level.

 

ReadConsistency

resourceConfigs (advanced)

Cluster wide resources configuration.

 

Map

resourceOptions (advanced)

Local resources configurations

 

Map

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean