Infinispan

Infinispan Component

Available as of Camel 2.13.0

This component allows you to interact with Infinispan distributed data grid / cache. Infinispan is an extremely scalable, highly available key/value data store and data grid platform written in Java.

From Camel 2.17 onwards Infinispan requires Java 8.

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

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

URI format

infinispan://cacheName?[options]

URI syntax change

The URI syntax has changed since camel 2.19.0, for previous camel versions the URI format is:

infinispan://hostName?[options]

URI Options

The producer allows sending messages to a local infinispan cache configured in the registry, or to a remote cache using the HotRod protocol.
The consumer allows listening for events from local infinispan cache accessible from the registry.

Name	Default Value	Type	Context	Description
cacheContainer	`null`	CacheContainer	Shared	Reference to a `org.infinispan.manager.CacheContainer` in the Registry.
hosts	`null`	String	Shared	Specifies the hosts of the Infinispan instance.
command	`PUT`	String	Producer	The operation to perform. Currently supports the following values: PUT, GET, REMOVE, CLEAR. From Camel 2.16: PUT ALL, PUT IF ABSENT, REPLACE, SIZE. From Camel 2.17: PUT ASYNC, PUT ALL ASYNC, PUT IF ABSENT ASYNC, CONTAINS KEY, CONTAINS VALUE, REMOVE ASYNC, REPLACE ASYNC, CLEAR ASYNC, QUERY From Camel 2.18: STATS
eventTypes	`null`	Set<String>	Consumer	The event types to register. By default will listen for all event types. Possible values defined in org.infinispan.notifications.cachelistener.event.Event.Type
sync	`true`	Boolean	Consumer	By default the consumer will receive notifications synchronously, by the same thread that process the cache operation.
queryBuilder	null	InfinispanQueryBuilder	Shared	From Camel 2.17: the QueryBuilder to be used by QUERY command if CamelInfinispanQueryBuilder header is not set
customListener	null	InfinispanCustomListener	Consumer	From Camel 2.17: a custom event listener
clusteredListener	false	Boolean	Consumer	From Camel 2.17: if ture the listener will be installed for entiere cluster

Message Headers

Name	Default Value	Type	Context	Description
CamelInfinispanCacheName	`null`	String	Shared	The cache participating in the operation or event.
CamelInfinispanOperation	`PUT`	String	Producer	The operation to perform: CamelInfinispanOperationPut, CamelInfinispanOperationGet, CamelInfinispanOperationRemove, CamelInfinispanOperationClear. From Camel 2.16: CamelInfinispanOperationPutAll, CamelInfinispanOperationPutIfAbsent, CamelInfinispanOperationReplace, CamelInfinispanOperationSize.
CamelInfinispanMap	`null`	Map	Producer	A Map to use in case of CamelInfinispanOperationPutAll operation
CamelInfinispanKey	`null`	Object	Shared	The key to perform the operation to or the key generating the event.
CamelInfinispanValue	`null`	Object	Producer	The value to use for the operation.
CamelInfinispanOperationResult	`null`	Object	Producer	The result of the operation.
CamelInfinispanEventType	`null`	String	Consumer	The type of the received event. Possible values defined here org.infinispan.notifications.cachelistener.event.Event.Type
CamelInfinispanIsPre	`null`	Boolean	Consumer	Infinispan fires two events for each operation: one before and one after the operation.
CamelInfinispanLifespanTime	`null`	long	Producer	The Lifespan time of a value inside the cache. Negative values are interpreted as infinity.
CamelInfinispanTimeUnit	`null`	String	Producer	The Time Unit of an entry Lifespan Time.
CamelInfinispanMaxIdleTime	`null`	long	Producer	The maximum amount of time an entry is allowed to be idle for before it is considered as expired.
CamelInfinispanMaxIdleTimeUnit	`null`	String	Producer	The Time Unit of an entry Max Idle Time.
CamelInfinispanQueryBuilder	null	InfinispanQueryBuilder	Producer	From Camel 2.17: The QueryBuilde to use for QUERY command, if not present the command defaults to InifinispanConfiguration's one
CamelInfinispanIgnoreReturnValues	null	Boolean	Producer	From Camel 2.17: If this header is set, the return value for cache operation returning something is ignored by the client application

Example

Below is an example route that retrieves a value from the cache for a specific key:

from("direct:start")
        .setHeader(InfinispanConstants.OPERATION, constant(InfinispanConstants.GET))
        .setHeader(InfinispanConstants.KEY, constant("123"))
        .to("infinispan?cacheContainer=#cacheContainer");

Using the Infinispan based idempotent repository

In this section we will use the Infinispan based idempotent repository.

First, we need to create a cacheManager and then configure our org.apache.camel.component.infinispan.processor.idempotent.InfinispanIdempotentRepository:

<bean id="cacheManager" class="org.infinispan.manager.DefaultCacheManager" init-method="start" destroy-method="stop"/>
<bean id="infinispanRepo" class="org.apache.camel.component.infinispan.processor.idempotent.InfinispanIdempotentRepository"
      factory-method="infinispanIdempotentRepository">
    <argument ref="cacheManager"/>
    <argument value="idempotent"/>
</bean>

Then we can create our Infinispan idempotent repository in the spring XML file as well:

<camelContext xmlns="http://camel.apache.org/schema/spring">	
    <route id="JpaMessageIdRepositoryTest">
        <from uri="direct:start" />
        <idempotentConsumer messageIdRepositoryRef="infinispanStore">
            <header>messageId</header>
            <to uri="mock:result" />
        </idempotentConsumer>
    </route>
</camelContext>

If you plan to use a RemoteCacheManager instead of DefaultcacheManager please note that you need to force the cache to return values for Map oeprations:

RemoteCacheManager manager = new RemoteCacheManager(
    new ConfigurationBuilder()            
        .addServers("localhost")
        .forceReturnValues(true)
        .build(),
    true
);

context.addRoutes(new RouteBuilder() {
    void configure() {
        from("direct:start")
            .idempotentConsumer(
                header("MessageID"), 
                new InfinispanIdempotentRepository(manager, "idempotent"))
            .to("mock:result");
    }
});

Spring XML

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
     http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
     http://camel.apache.org/schema/spring
     http://camel.apache.org/schema/spring/camel-spring.xsd">

  <bean id="cacheManagerFactory" class="org.infinispan.spring.provider.SpringRemoteCacheManagerFactoryBean">
    <property
        name="configurationProperties">
      <props>
        <prop key="infinispan.client.hotrod.server_list">127.0.0.1:11222</prop>
        <prop key="infinispan.client.hotrod.force_return_values">true</prop>
      </props>
    </property>
  </bean>

  <bean id="cacheManager" factory-bean="cacheManagerFactory" factory-method="getNativeCacheManager" init-method="start" destroy-method="stop">
  </bean>

  <bean id="infinispanRepo" class="org.apache.camel.component.infinispan.processor.idempotent.InfinispanIdempotentRepository"
        factory-method="infinispanIdempotentRepository">
    <constructor-arg ref="cacheManager"/>
    <constructor-arg value="idempotent"/>
  </bean>

  <camelContext xmlns="http://camel.apache.org/schema/spring">
    <route id="infinispan-remote">
      <from uri="direct:start" />
      <idempotentConsumer messageIdRepositoryRef="infinispanRepo">
        <header>MessageId</header>
        <to uri="log:org.apache.camel.component.infinispan?level=INFO&amp;showAll=true&amp;multiline=true" />
      </idempotentConsumer>
    </route>
  </camelContext>

</beans>

For more information, see these resources...

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