Chapter 157. Ignite Compute Component Available as of Camel version 2.17 The Ignite Compute endpoint is one of camel-ignite endpoints which allows you to run compute operations on the cluster by passing in an IgniteCallable, an IgniteRunnable, an IgniteClosure, or collections of them, along with their parameters if necessary. This endpoint only supports producers. The host part of the endpoint URI is a symbolic endpoint ID, it is not used for any purposes. The endpoint tries to run the object passed in the body of the IN message as the compute job. It expects different payload types depending on the execution type. 157.1. Options The Ignite Compute component supports 4 options, which are listed below. Name Description Default Type ignite (producer) Sets the Ignite instance. Ignite configurationResource (producer) Sets the resource from where to load the configuration. It can be a: URI, String (URI) or an InputStream. Object igniteConfiguration (producer) Allows the user to set a programmatic IgniteConfiguration. IgniteConfiguration 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 Ignite Compute endpoint is configured using URI syntax: with the following path and query parameters: 157.1.1. Path Parameters (1 parameters): Name Description Default Type endpointId Required The endpoint ID (not used). String 157.1.2. Query Parameters (8 parameters): Name Description Default Type clusterGroupExpression (producer) An expression that returns the Cluster Group for the IgniteCompute instance. ClusterGroupExpression computeName (producer) The name of the compute job, which will be set via IgniteCompute#withName(String). String executionType (producer) Required The compute operation to perform. Possible values: CALL, BROADCAST, APPLY, EXECUTE, RUN, AFFINITY_CALL, AFFINITY_RUN. The component expects different payload types depending on the operation. IgniteComputeExecution Type propagateIncomingBodyIfNo ReturnValue (producer) Sets whether to propagate the incoming body if the return type of the underlying Ignite operation is void. true boolean taskName (producer) The task name, only applicable if using the IgniteComputeExecutionType#EXECUTE execution type. String timeoutMillis (producer) The timeout interval for triggered jobs, in milliseconds, which will be set via IgniteCompute#withTimeout(long). Long treatCollectionsAsCache Objects (producer) Sets whether to treat Collections as cache objects or as Collections of items to insert/update/compute, etc. false boolean synchronous (advanced) Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported). false boolean 157.2. Spring Boot Auto-Configuration The component supports 5 options, which are listed below. Name Description Default Type camel.component.ignite-compute.configuration-resource Sets the resource from where to load the configuration. It can be a: URI, String (URI) or an InputStream. The option is a java.lang.Object type. String camel.component.ignite-compute.enabled Enable ignite-compute component true Boolean camel.component.ignite-compute.ignite Sets the Ignite instance. The option is a org.apache.ignite.Ignite type. String camel.component.ignite-compute.ignite-configuration Allows the user to set a programmatic IgniteConfiguration. The option is a org.apache.ignite.configuration.IgniteConfiguration type. String camel.component.ignite-compute.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 157.2.1. Expected payload types Each operation expects the indicated types: Operation Expected payloads CALL Collection of IgniteCallable, or a single IgniteCallable. BROADCAST IgniteCallable, IgniteRunnable, IgniteClosure. APPLY IgniteClosure. EXECUTE ComputeTask, Class<? extends ComputeTask> or an object representing parameters if the taskName option is not null. RUN A Collection of IgniteRunnables, or a single IgniteRunnable. AFFINITY_CALL IgniteCallable. AFFINITY_RUN IgniteRunnable. 157.2.2. Headers used This endpoint uses the following headers: Header name Constant Expected type Description CamelIgniteComputeExecutionType IgniteConstants.IGNITE_COMPUTE_EXECUTION_TYPE IgniteComputeExecutionType enum Allows you to dynamically change the compute operation to perform. CamelIgniteComputeParameters IgniteConstants.IGNITE_COMPUTE_PARAMS Any object or Collection of objects. Parameters for APPLY, BROADCAST and EXECUTE operations. CamelIgniteComputeReducer IgniteConstants.IGNITE_COMPUTE_REDUCER IgniteReducer Reducer for the APPLY and CALL operations. CamelIgniteComputeAffinityCacheName IgniteConstants.IGNITE_COMPUTE_AFFINITY_CACHE_NAME String Affinity cache name for the AFFINITY_CALL and AFFINITY_RUN operations. CamelIgniteComputeAffinityKey IgniteConstants.IGNITE_COMPUTE_AFFINITY_KEY Object Affinity key for the AFFINITY_CALL and AFFINITY_RUN operations.

Commands:
ignite-compute:endpointId