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Chapter 15. 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>15.1. URI format
atomix-messaging:group
The Atomix Messaging component supports 5 options, which are listed below.
| Name | Description | Default | Type |
|---|---|---|---|
| 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:
15.1.1. Path Parameters (1 parameters):
| Name | Description | Default | Type |
|---|---|---|---|
| resourceName | Required The distributed resource name | String |
15.1.2. Query Parameters (19 parameters):
| Name | Description | Default | Type |
|---|---|---|---|
| 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 option 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 |
15.2. Spring Boot Auto-Configuration
The component supports 10 options, which are listed below.
| Name | Description | Default | Type |
|---|---|---|---|
| camel.component.atomix-messaging.atomix | The shared AtomixClient instance. The option is a io.atomix.AtomixClient type. | String | |
| camel.component.atomix-messaging.configuration-uri | The path to the AtomixClient configuration | String | |
| camel.component.atomix-messaging.configuration.broadcast-type | The broadcast type. | AtomixMessaging$ BroadcastType | |
| camel.component.atomix-messaging.configuration.channel-name | The messaging channel name | String | |
| camel.component.atomix-messaging.configuration.default-action | The default action. | AtomixMessaging$Action | |
| camel.component.atomix-messaging.configuration.member-name | The Atomix Group member name | String | |
| camel.component.atomix-messaging.configuration.result-header | The header that wil carry the result. | String | |
| camel.component.atomix-messaging.enabled | Whether to enable auto configuration of the atomix-messaging component. This is enabled by default. | Boolean | |
| camel.component.atomix-messaging.nodes | The nodes the AtomixClient should connect to | List | |
| camel.component.atomix-messaging.resolve-property-placeholders | Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. | true | Boolean |
