Ignite Cache

Since Camel 2.17

Both producer and consumer are supported

The Ignite Cache endpoint is one of camel-ignite endpoints which allows you to interact with an Ignite Cache. This offers both a Producer (to invoke cache operations on an Ignite cache) and a Consumer (to consume changes from a continuous query).

The cache value is always the body of the message, whereas the cache key is always stored in the IgniteConstants.IGNITE_CACHE_KEY message header.

Even if you configure a fixed operation in the endpoint URI, you can vary it per-exchange by setting the IgniteConstants.IGNITE_CACHE_OPERATION message header.

Configuring Options

Camel components are configured on two separate levels:

  • component level

  • endpoint level

Configuring Component Options

The component level is the highest level which holds general and common configurations that are inherited by the endpoints. For example a component may have security settings, credentials for authentication, urls for network connection and so forth.

Some components only have a few options, and others may have many. Because components typically have pre configured defaults that are commonly used, then you may often only need to configure a few options on a component; or none at all.

Configuring components can be done with the Component DSL, in a configuration file (application.properties|yaml), or directly with Java code.

Configuring Endpoint Options

Where you find yourself configuring the most is on endpoints, as endpoints often have many options, which allows you to configure what you need the endpoint to do. The options are also categorized into whether the endpoint is used as consumer (from) or as a producer (to), or used for both.

Configuring endpoints is most often done directly in the endpoint URI as path and query parameters. You can also use the Endpoint DSL as a type safe way of configuring endpoints.

A good practice when configuring options is to use Property Placeholders, which allows to not hardcode urls, port numbers, sensitive information, and other settings. In other words placeholders allows to externalize the configuration from your code, and gives more flexibility and reuse.

The following two sections lists all the options, firstly for the component followed by the endpoint.

Component Options

The Ignite Cache component supports 6 options, which are listed below.

Name Description Default Type

configurationResource (common)

The resource from where to load the configuration. It can be a: URL, String or InputStream type.

Object

ignite (common)

To use an existing Ignite instance.

Ignite

igniteConfiguration (common)

Allows the user to set a programmatic ignite configuration.

IgniteConfiguration

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.

boolean

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

boolean

autowiredEnabled (advanced)

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

boolean

Endpoint Options

The Ignite Cache endpoint is configured using URI syntax:

ignite-cache:cacheName

with the following path and query parameters:

Path Parameters (1 parameters)

Name Description Default Type

cacheName (common)

Required The cache name.

String

Query Parameters (16 parameters)

Name Description Default Type

propagateIncomingBodyIfNoReturnValue (common)

Sets whether to propagate the incoming body if the return type of the underlying Ignite operation is void.

boolean

treatCollectionsAsCacheObjects (common)

Sets whether to treat Collections as cache objects or as Collections of items to insert/update/compute, etc.

boolean

autoUnsubscribe (consumer)

Whether auto unsubscribe is enabled in the Continuous Query Consumer. Default value notice: ContinuousQuery.DFLT_AUTO_UNSUBSCRIBE.

boolean

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.

boolean

fireExistingQueryResults (consumer)

Whether to process existing results that match the query. Used on initialization of the Continuous Query Consumer.

boolean

oneExchangePerUpdate (consumer)

Whether to pack each update in an individual Exchange, even if multiple updates are received in one batch. Only used by the Continuous Query Consumer.

boolean

pageSize (consumer)

The page size. Only used by the Continuous Query Consumer. Default value notice: ContinuousQuery.DFLT_PAGE_SIZE.

int

query (consumer)

The Query to execute, only needed for operations that require it, and for the Continuous Query Consumer.

Query

remoteFilter (consumer)

The remote filter, only used by the Continuous Query Consumer.

CacheEntryEventSerializableFilter

timeInterval (consumer)

The time interval for the Continuous Query Consumer. Default value notice: ContinuousQuery.DFLT_TIME_INTERVAL.

long

exceptionHandler (consumer (advanced))

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 (advanced))

Sets the exchange pattern when the consumer creates an exchange.

Enum values:

  • InOnly

  • InOut

  • InOptionalOut

ExchangePattern

cachePeekMode (producer)

The CachePeekMode, only needed for operations that require it (IgniteCacheOperation#SIZE).

Enum values:

  • ALL

  • NEAR

  • PRIMARY

  • BACKUP

  • ONHEAP

  • OFFHEAP

CachePeekMode

failIfInexistentCache (producer)

Whether to fail the initialization if the cache doesn’t exist.

boolean

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

boolean

operation (producer)

The cache operation to invoke. Possible values: GET, PUT, REMOVE, SIZE, REBALANCE, QUERY, CLEAR.

Enum values:

  • GET

  • PUT

  • REMOVE

  • SIZE

  • REBALANCE

  • QUERY

  • CLEAR

IgniteCacheOperation

Headers used

This endpoint uses the following headers:

Header name Constant Expected type Description

CamelIgniteCacheKey

IgniteConstants.IGNITE_CACHE_KEY

String

The cache key for the entry value in the message body.

CamelIgniteCacheQuery

IgniteConstants.IGNITE_CACHE_QUERY

Query

The query to run (producer) when invoking the QUERY operation.

CamelIgniteCacheOperation

IgniteConstants.IGNITE_CACHE_OPERATION

IgniteCacheOperation enum

Allows you to dynamically change the cache operation to execute (producer).

CamelIgniteCachePeekMode

IgniteConstants.IGNITE_CACHE_PEEK_MODE

CachePeekMode enum

Allows you to dynamically change the cache peek mode when running the SIZE operation.

CamelIgniteCacheEventType

IgniteConstants.IGNITE_CACHE_EVENT_TYPE

int (EventType constants)

This header carries the received event type when using the continuous query consumer.

CamelIgniteCacheName

IgniteConstants.IGNITE_CACHE_NAME

String

This header carries the cache name for which a continuous query event was received (consumer). It does not allow you to dynamically change the cache against which a producer operation is performed. Use EIPs for that (e.g. recipient list, dynamic router).

CamelIgniteCacheOldValue

IgniteConstants.IGNITE_CACHE_OLD_VALUE

Object

This header carries the old cache value when passed in the incoming cache event (consumer).

Spring Boot Auto-Configuration

When using ignite-cache with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

<dependency>
  <groupId>org.apache.camel.springboot</groupId>
  <artifactId>camel-ignite-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 44 options, which are listed below.

Name Description Default Type

camel.component.ignite-cache.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.ignite-cache.bridge-error-handler

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

camel.component.ignite-cache.configuration-resource

The resource from where to load the configuration. It can be a: URL, String or InputStream type. The option is a java.lang.Object type.

Object

camel.component.ignite-cache.enabled

Whether to enable auto configuration of the ignite-cache component. This is enabled by default.

Boolean

camel.component.ignite-cache.ignite

To use an existing Ignite instance. The option is a org.apache.ignite.Ignite type.

Ignite

camel.component.ignite-cache.ignite-configuration

Allows the user to set a programmatic ignite configuration. The option is a org.apache.ignite.configuration.IgniteConfiguration type.

IgniteConfiguration

camel.component.ignite-cache.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.ignite-compute.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.ignite-compute.configuration-resource

The resource from where to load the configuration. It can be a: URL, String or InputStream type. The option is a java.lang.Object type.

Object

camel.component.ignite-compute.enabled

Whether to enable auto configuration of the ignite-compute component. This is enabled by default.

Boolean

camel.component.ignite-compute.ignite

To use an existing Ignite instance. The option is a org.apache.ignite.Ignite type.

Ignite

camel.component.ignite-compute.ignite-configuration

Allows the user to set a programmatic ignite configuration. The option is a org.apache.ignite.configuration.IgniteConfiguration type.

IgniteConfiguration

camel.component.ignite-compute.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.ignite-events.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.ignite-events.bridge-error-handler

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

camel.component.ignite-events.configuration-resource

The resource from where to load the configuration. It can be a: URL, String or InputStream type. The option is a java.lang.Object type.

Object

camel.component.ignite-events.enabled

Whether to enable auto configuration of the ignite-events component. This is enabled by default.

Boolean

camel.component.ignite-events.ignite

To use an existing Ignite instance. The option is a org.apache.ignite.Ignite type.

Ignite

camel.component.ignite-events.ignite-configuration

Allows the user to set a programmatic ignite configuration. The option is a org.apache.ignite.configuration.IgniteConfiguration type.

IgniteConfiguration

camel.component.ignite-idgen.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.ignite-idgen.configuration-resource

The resource from where to load the configuration. It can be a: URL, String or InputStream type. The option is a java.lang.Object type.

Object

camel.component.ignite-idgen.enabled

Whether to enable auto configuration of the ignite-idgen component. This is enabled by default.

Boolean

camel.component.ignite-idgen.ignite

To use an existing Ignite instance. The option is a org.apache.ignite.Ignite type.

Ignite

camel.component.ignite-idgen.ignite-configuration

Allows the user to set a programmatic ignite configuration. The option is a org.apache.ignite.configuration.IgniteConfiguration type.

IgniteConfiguration

camel.component.ignite-idgen.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.ignite-messaging.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.ignite-messaging.bridge-error-handler

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

camel.component.ignite-messaging.configuration-resource

The resource from where to load the configuration. It can be a: URL, String or InputStream type. The option is a java.lang.Object type.

Object

camel.component.ignite-messaging.enabled

Whether to enable auto configuration of the ignite-messaging component. This is enabled by default.

Boolean

camel.component.ignite-messaging.ignite

To use an existing Ignite instance. The option is a org.apache.ignite.Ignite type.

Ignite

camel.component.ignite-messaging.ignite-configuration

Allows the user to set a programmatic ignite configuration. The option is a org.apache.ignite.configuration.IgniteConfiguration type.

IgniteConfiguration

camel.component.ignite-messaging.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.ignite-queue.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.ignite-queue.configuration-resource

The resource from where to load the configuration. It can be a: URL, String or InputStream type. The option is a java.lang.Object type.

Object

camel.component.ignite-queue.enabled

Whether to enable auto configuration of the ignite-queue component. This is enabled by default.

Boolean

camel.component.ignite-queue.ignite

To use an existing Ignite instance. The option is a org.apache.ignite.Ignite type.

Ignite

camel.component.ignite-queue.ignite-configuration

Allows the user to set a programmatic ignite configuration. The option is a org.apache.ignite.configuration.IgniteConfiguration type.

IgniteConfiguration

camel.component.ignite-queue.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.ignite-set.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.ignite-set.configuration-resource

The resource from where to load the configuration. It can be a: URL, String or InputStream type. The option is a java.lang.Object type.

Object

camel.component.ignite-set.enabled

Whether to enable auto configuration of the ignite-set component. This is enabled by default.

Boolean

camel.component.ignite-set.ignite

To use an existing Ignite instance. The option is a org.apache.ignite.Ignite type.

Ignite

camel.component.ignite-set.ignite-configuration

Allows the user to set a programmatic ignite configuration. The option is a org.apache.ignite.configuration.IgniteConfiguration type.

IgniteConfiguration

camel.component.ignite-set.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean