docs/components/modules/ROOT/pages/infinispan-component.adoc

[[infinispan-component]]
= Infinispan Component
:page-source: components/camel-infinispan/src/main/docs/infinispan-component.adoc

*Available as of Camel version 2.13*

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

Infinispan requires at least Java 8.

The `camel-infinispan` component includes the following features:

* *Local Camel Consumer* - Receives cache change notifications and sends them to be processed.
This can be done synchronously or asynchronously, and is also supported with a replicated or distributed cache.

* *Local Camel Producer* - A producer creates and sends messages to an endpoint.
The `camel-infinispan` producer uses ``GET``, ``PUT``, ``REMOVE``, and `CLEAR` operations.
The local producer is also supported with a replicated or distributed cache.

* *Remote Camel Producer* - In Remote Client-Server mode, the Camel producer can send messages using Hot Rod.

* *Remote Camel Consumer* - In Client-Server mode, receives cache change notifications and sends them to be processed.
The events are processed asynchronously.

If you use Maven, you must add the following dependency to your `pom.xml`:

[source,xml]
------------------------------------------------------------
<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

[source,java]
-------------------------------
infinispan://cacheName?[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.


// component options: START
The Infinispan component supports 3 options, which are listed below.



[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *configuration* (common) | The default configuration shared among endpoints. |  | InfinispanConfiguration
| *cacheContainer* (common) | The default cache container. |  | BasicCacheContainer
| *basicPropertyBinding* (advanced) | Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities | false | boolean
|===
// component options: END




// endpoint options: START
The Infinispan endpoint is configured using URI syntax:

----
infinispan:cacheName
----

with the following path and query parameters:

=== Path Parameters (1 parameters):


[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *cacheName* | *Required* The cache to use |  | String
|===


=== Query Parameters (21 parameters):


[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *hosts* (common) | Specifies the host of the cache on Infinispan instance |  | String
| *queryBuilder* (common) | Specifies the query builder. |  | InfinispanQueryBuilder
| *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
| *clusteredListener* (consumer) | If true, the listener will be installed for the entire cluster | false | boolean
| *command* (consumer) | *Deprecated* The operation to perform. | PUT | String
| *customListener* (consumer) | Returns the custom listener in use, if provided |  | InfinispanCustomListener
| *eventTypes* (consumer) | Specifies the set of event types to register by the consumer. Multiple event can be separated by comma. The possible event types are: CACHE_ENTRY_ACTIVATED, CACHE_ENTRY_PASSIVATED, CACHE_ENTRY_VISITED, CACHE_ENTRY_LOADED, CACHE_ENTRY_EVICTED, CACHE_ENTRY_CREATED, CACHE_ENTRY_REMOVED, CACHE_ENTRY_MODIFIED, TRANSACTION_COMPLETED, TRANSACTION_REGISTERED, CACHE_ENTRY_INVALIDATED, DATA_REHASHED, TOPOLOGY_CHANGED, PARTITION_STATUS_CHANGED |  | String
| *sync* (consumer) | If true, the consumer will receive notifications synchronously | true | 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
| *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. | false | boolean
| *operation* (producer) | The operation to perform. | PUT | InfinispanOperation
| *basicPropertyBinding* (advanced) | Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities | false | boolean
| *cacheContainer* (advanced) | Specifies the cache Container to connect |  | BasicCacheContainer
| *cacheContainerConfiguration* (advanced) | The CacheContainer configuration. Uses if the cacheContainer is not defined. Must be the following types: org.infinispan.client.hotrod.configuration.Configuration - for remote cache interaction configuration; org.infinispan.configuration.cache.Configuration - for embedded cache interaction configuration; |  | Object
| *configurationProperties* (advanced) | Implementation specific properties for the CacheManager |  | Map
| *configurationUri* (advanced) | An implementation specific URI for the CacheManager |  | String
| *flags* (advanced) | A comma separated list of Flag to be applied by default on each cache invocation, not applicable to remote caches. |  | String
| *remappingFunction* (advanced) | Set a specific remappingFunction to use in a compute operation |  | BiFunction
| *resultHeader* (advanced) | Store the operation result in a header instead of the message body. By default, resultHeader == null and the query result is stored in the message body, any existing content in the message body is discarded. If resultHeader is set, the value is used as the name of the header to store the query result and the original message body is preserved. This value can be overridden by an in message header named: CamelInfinispanOperationResultHeader |  | Object
| *synchronous* (advanced) | Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported). | false | boolean
|===
// endpoint options: END
// spring-boot-auto-configure options: START
== Spring Boot Auto-Configuration

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

[source,xml]
----
<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-infinispan-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>
----


The component supports 22 options, which are listed below.



[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *camel.component.infinispan.basic-property-binding* | Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities | false | Boolean
| *camel.component.infinispan.cache-container* | The default cache container. The option is a org.infinispan.commons.api.BasicCacheContainer type. |  | String
| *camel.component.infinispan.configuration.cache-container* | Specifies the cache Container to connect |  | BasicCacheContainer
| *camel.component.infinispan.configuration.cache-container-configuration* | The CacheContainer configuration. Uses if the cacheContainer is not defined. Must be the following types: org.infinispan.client.hotrod.configuration.Configuration - for remote cache interaction configuration; org.infinispan.configuration.cache.Configuration - for embedded cache interaction configuration; |  | Object
| *camel.component.infinispan.configuration.clustered-listener* | If true, the listener will be installed for the entire cluster | false | Boolean
| *camel.component.infinispan.configuration.configuration-properties* | Implementation specific properties for the CacheManager |  | Map
| *camel.component.infinispan.configuration.configuration-uri* | An implementation specific URI for the CacheManager |  | String
| *camel.component.infinispan.configuration.custom-listener* | Returns the custom listener in use, if provided |  | InfinispanCustomListener
| *camel.component.infinispan.configuration.event-types* | Specifies the set of event types to register by the consumer. Multiple event can be separated by comma. <p/> The possible event types are: CACHE_ENTRY_ACTIVATED, CACHE_ENTRY_PASSIVATED, CACHE_ENTRY_VISITED, CACHE_ENTRY_LOADED, CACHE_ENTRY_EVICTED, CACHE_ENTRY_CREATED, CACHE_ENTRY_REMOVED, CACHE_ENTRY_MODIFIED, TRANSACTION_COMPLETED, TRANSACTION_REGISTERED, CACHE_ENTRY_INVALIDATED, DATA_REHASHED, TOPOLOGY_CHANGED, PARTITION_STATUS_CHANGED |  | Set
| *camel.component.infinispan.configuration.flags* | A comma separated list of Flag to be applied by default on each cache invocation, not applicable to remote caches. |  | Flag[]
| *camel.component.infinispan.configuration.hosts* | Specifies the host of the cache on Infinispan instance |  | String
| *camel.component.infinispan.configuration.operation* | The operation to perform. |  | InfinispanOperation
| *camel.component.infinispan.configuration.query-builder* | Specifies the query builder. |  | InfinispanQueryBuilder
| *camel.component.infinispan.configuration.remapping-function* | Set a specific remappingFunction to use in a compute operation |  | BiFunction
| *camel.component.infinispan.configuration.result-header* | Store the operation result in a header instead of the message body. By default, resultHeader == null and the query result is stored in the message body, any existing content in the message body is discarded. If resultHeader is set, the value is used as the name of the header to store the query result and the original message body is preserved. This value can be overridden by an in message header named: CamelInfinispanOperationResultHeader |  | Object
| *camel.component.infinispan.configuration.sync* | If true, the consumer will receive notifications synchronously | true | Boolean
| *camel.component.infinispan.customizer.embedded-cache-manager.enabled* | Enable or disable the cache-manager customizer. | true | Boolean
| *camel.component.infinispan.customizer.embedded-cache-manager.override* | Configure if the cache manager eventually set on the component should be overridden by the customizer. | false | Boolean
| *camel.component.infinispan.customizer.remote-cache-manager.enabled* | Enable or disable the cache-manager customizer. | true | Boolean
| *camel.component.infinispan.customizer.remote-cache-manager.override* | Configure if the cache manager eventually set on the component should be overridden by the customizer. | false | Boolean
| *camel.component.infinispan.enabled* | Enable infinispan component | true | Boolean
| *camel.component.infinispan.configuration.command* | *Deprecated* The operation to perform. | PUT | String
|===
// spring-boot-auto-configure options: END

== Camel Operations
This section lists all available operations, along with their header information.

.Put Operations
[cols="40%,60%", frame="all", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.PUT
| *Context*: Embedded / Remote

*Description*: Puts a key/value pair in the cache, optionally with expiration

*Required Headers*: CamelInfinispanKey, CamelInfinispanValue

*Optional Headers*: CamelInfinispanLifespanTime, CamelInfinispanLifespanTimeUnit, CamelInfinispanMaxIdleTime, CamelInfinispanMaxIdleTimeUnit, CamelInfinispanIgnoreReturnValues

*Result Header*: CamelInfinispanOperationResult

| InfinispanOperation.PUTASYNC
| *Description*: Asynchronously puts a key/value pair in the cache, optionally with expiration


| InfinispanOperation.PUTIFABSENT
| *Description*: Puts a key/value pair in the cache if it did not exist, optionally with expiration


| InfinispanOperation.PUTIFABSENTASYNC
| *Description*: Asynchronously puts a key/value pair in the cache if it did not exist, optionally with expiration

|===

.Put All Operations
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.PUTALL
| *Context*: Embedded / Remote

*Description*: Adds multiple entries to a cache, optionally with expiration

*Required Headers*: CamelInfinispanMap

*Optional Headers*: CamelInfinispanLifespanTime, CamelInfinispanLifespanTimeUnit, CamelInfinispanMaxIdleTime, CamelInfinispanMaxIdleTimeUnit

*Result Header*: None

| CamelInfinispanOperation.PUTALLASYNC
| *Description*: Asynchronously adds multiple entries to a cache, optionally with expiration

|===

.Get Operations
[cols="40%,60%", frame="all", options="header"]
|===
|Operation Name
|Description

| InfinispanOperation.GET
| *Context*: Embedded / Remote

*Description*: Retrieves the value associated with a specific key from the cache

*Required Headers*: CamelInfinispanKey

*Optional Headers*: None

*Result Header*: None

| InfinispanOperation.GETORDEFAULT
| *Context*: Embedded / Remote

*Description*: Retrieves the value, or default value, associated with a specific key from the cache

*Required Headers*: CamelInfinispanKey

*Optional Headers*: None

*Result Header*: None
|===

.Contains Key Operation
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.CONTAINSKEY
| *Context*: Embedded / Remote

*Description*: Determines whether a cache contains a specific key

*Required Headers*: CamelInfinispanKey

*Optional Headers*: None

*Result Header*: CamelInfinispanOperationResult
|===

.Contains Value Operation
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.CONTAINSVALUE
| *Context*: Embedded / Remote

*Description*: Determines whether a cache contains a specific value

*Required Headers*: CamelInfinispanKey

*Optional Headers*: None

*Result Headers*: None
|===

.Remove Operations
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.REMOVE
| *Context*: Embedded / Remote

*Description*: Removes an entry from a cache, optionally only if the value matches a given one

*Required Headers*: CamelInfinispanKey

*Optional Headers*: CamelInfinispanValue

*Result Header*: CamelInfinispanOperationResult

| InfinispanOperation.REMOVEASYNC
| *Description*: Asynchronously removes an entry from a cache, optionally only if the value matches a given one

|===

.Replace Operations
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.REPLACE
| *Context*: Embedded / Remote

*Description*: Conditionally replaces an entry in the cache, optionally with expiration

*Required Headers*: CamelInfinispanKey, CamelInfinispanValue, CamelInfinispanOldValue

*Optional Headers*: CamelInfinispanLifespanTime, CamelInfinispanLifespanTimeUnit, CamelInfinispanMaxIdleTime, CamelInfinispanMaxIdleTimeUnit, CamelInfinispanIgnoreReturnValues

*Result Header*: CamelInfinispanOperationResult

| InfinispanOperation.REPLACEASYNC
| *Description*: Asynchronously conditionally replaces an entry in the cache, optionally with expiration

|===

.Clear Operations
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.CLEAR
| *Context*: Embedded / Remote

*Description*: Clears the cache

*Required Headers*: None

*Optional Headers*: None

*Result Header*: None

| InfinispanOperation.CLEARASYNC
| *Context*: Embedded / Remote

*Description*: Asynchronously clears the cache

*Required Headers*: None

*Optional Headers*: None

*Result Header*: None
|===

.Size Operation
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.SIZE
| *Context*: Embedded / Remote

*Description*: Returns the number of entries in the cache

*Required Headers*: None

*Optional Headers*: None

*Result Header*: CamelInfinispanOperationResult
|===

.Stats Operation
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.STATS
| *Context*: Embedded / Remote

*Description*: Returns statistics about the cache

*Required Headers*: None

*Optional Headers*: None

*Result Header*: CamelInfinispanOperationResult
|===

.Query Operation
[cols="40%,60%", options="header"]
|===
| Operation Name
| Description

| InfinispanOperation.QUERY
| *Context*: Remote

*Description*: Executes a query on the cache

*Required Headers*: CamelInfinispanQueryBuilder

*Optional Headers*: None

*Result Header*: CamelInfinispanOperationResult
|===

[NOTE]
====
Any operations that take `CamelInfinispanIgnoreReturnValues` will receive a null result.
====



== Message Headers

[width="100%",cols="10%,10%,10%,10%,60%",options="header",]
|=======================================================================
|Name |Default Value |Type |Context |Description
|CamelInfinispanCacheName |`null` |String |Shared |The cache participating in the operation or event.
|CamelInfinispanOperation |`PUT` |InfinispanOperation |Producer |The operation to perform.
|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.
|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 |The QueryBuilde to use for QUERY command, if not present the command defaults to InifinispanConfiguration's one
|CamelInfinispanIgnoreReturnValues |null |Boolean |Producer |If this header is set, the return value for cache operation returning something is ignored by the client application
|CamelInfinispanOperationResultHeader |null |String |Producer |Store the operation result in a header instead of the message body
|=======================================================================

== Examples

* Retrieve a specific key from the default cache using a custom cache container:

[source,java]
----
from("direct:start")
    .setHeader(InfinispanConstants.OPERATION).constant(InfinispanOperation.GET)
    .setHeader(InfinispanConstants.KEY).constant("123")
    .to("infinispan?cacheContainer=#cacheContainer");
----


* Retrieve a specific key from a named cache:
+
[source,java]
----
from("direct:start")
    .setHeader(InfinispanConstants.OPERATION).constant(InfinispanOperation.PUT)
    .setHeader(InfinispanConstants.KEY).constant("123")
    .to("infinispan:myCacheName");
----

* Put a value with lifespan

[source,java]
----
from("direct:start")
    .setHeader(InfinispanConstants.OPERATION).constant(InfinispanOperation.GET)
    .setHeader(InfinispanConstants.KEY).constant("123")
    .setHeader(InfinispanConstants.LIFESPAN_TIME).constant(100L)
    .setHeader(InfinispanConstants.LIFESPAN_TIME_UNIT.constant(TimeUnit.MILLISECONDS.toString())
    .to("infinispan:myCacheName");
----

* Compute operation through a remapping function on the default cache using a custom cache container:

[source,java]
----
@BindToRegistry("mappingFunction")
BiFunction<String, String, String> comp = (k, v) -> v + "replay"; 

from("direct:start")
    .setHeader(InfinispanConstants.OPERATION).constant(InfinispanOperation.COMPUTE)
    .setHeader(InfinispanConstants.KEY).constant("123")
    .to("infinispan?cacheContainer=#cacheContainer&remappingFunction=#mappingFunction");
----

This will return oldValue + "replay".

This can be done also as async operation, with the `InfinispanOperation.COMPUTEASYNC` operation

* Retrieve a specific key from the remote cache using a cache container configuration with additional parameters (host, port and protocol version):

[source,java]
----
org.infinispan.client.hotrod.configuration.Configuration cacheContainerConfiguration = new org.infinispan.client.hotrod.configuration.ConfigurationBuilder()
    .addServer()
        .host("localhost")
        .port(9999)
        .version(org.infinispan.client.hotrod.ProtocolVersion.PROTOCOL_VERSION_25)
    .build();
...

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



=== XML examples

Routing can also be performed using XML configuration.
The following example demonstrates `camel-infinispan` `local-camel-producer`, a camel route that sends data to an embedded cache created by the `local-cache` module.

[source,java,options="nowrap"]
----
<camelContext id="local-producer" xmlns="http://camel.apache.org/schema/blueprint">
    <route>
        <from uri="timer://local?fixedRate=true&amp;period=5000"/>
        <setHeader headerName="CamelInfinispanKey">
            <constant>CamelTimerCounter</constant>
        </setHeader>
        <setHeader headerName="CamelInfinispanValue">
            <constant>CamelTimerCounter</constant>
        </setHeader>
        <to uri="infinispan://foo?cacheContainer=#cacheManager"/>
        <to uri="log:local-put?showAll=true"/>
    </route>
</camelContext>
----


The provided example requires you to instantiate the [class]``cacheManager``.

You can instantiate the [class]``cacheManager`` bean for Spring XML as follows:

[source,xml,options="nowrap"]
----
<bean id="cacheManager" class="org.infinispan.manager.DefaultCacheManager" init-method="start" destroy-method="stop">
    <constructor-arg type="java.lang.String" value="infinispan.xml"/>
</bean>
----


The following demonstrates how to instantiate the [class]``cacheManager`` bean using Blueprint XML.

[source,xml,options="nowrap"]
----
<bean id="cacheManager" class="org.infinispan.manager.DefaultCacheManager" init-method="start" destroy-method="stop">
    <argument value="infinispan.xml" />
</bean>
----

[NOTE]
====
Both the Spring XML and Blueprint XML examples use the configuration file [path]_infinispan.xml_
 for configuration of the cache. This file must be present on the classpath.
====


== Remote Query

When executing remote queries the cacheManager must be an instance of ``RemoteCacheManager``, and an example configuration utilizing a `RemoteCacheManager` is found below for both Java and blueprint.xml: 

.Using only Java
====
[source,java,options="nowrap"]
----
from("direct:start")
    .setHeader(InfinispanConstants.OPERATION, InfinispanConstants.QUERY)
    .setHeader(InfinispanConstants.QUERY_BUILDER,
      new InfinispanQueryBuilder() {
        public Query build(QueryFactory<Query> queryFactory) {
          return queryFactory.from(User.class).having("name").like("%abc%")
                      .build();
        }
      })
    .to("infinispan://localhost?cacheContainer=#cacheManager&cacheName=remote_query_cache") ;
----
====

.Using Blueprint and Java
====
.Java [class]``RemoteCacheManagerFactory`` class:  
[source,java,options="nowrap"]
----
public class RemoteCacheManagerFactory {      
    ConfigurationBuilder clientBuilder;
    public RemoteCacheManagerFactory(String hostname, int port) {
        clientBuilder = new ConfigurationBuilder();
        clientBuilder.addServer()
            .host(hostname).port(port);
    }
    public RemoteCacheManager newRemoteCacheManager() {
        return new RemoteCacheManager(clientBuilder.build());
    }
}
----
.Java [class]``InfinispanQueryExample`` class:  
[source,java,options="nowrap"]
----
public class InfinispanQueryExample {
    public InfinispanQueryBuilder getBuilder() {
        return new InfinispanQueryBuilder() {
            public Query build(QueryFactory<Query> queryFactory) {
                return queryFactory.from(User.class)
                         .having("name")
                         .like("%abc%")
                         .build();
            }
        }
    }
}
----
.blueprint.xml: 
[source,xml,options="nowrap"]
----
<bean id=”remoteCacheManagerFactory” class=“com.datagrid.RemoteCacheManagerFactory”>  
    <argument value=”localhost”/>      
    <argument value="11222”/>      
</bean>
 
<bean id=”cacheManager”
    factory-ref=”remoteCacheManagerFactory” 
    factory-method=“newRemoteCacheManager”>   
</bean>

<bean id="queryBuilder" class="org.example.com.InfinispanQueryExample"/>

<camelContext id="route" xmlns="http://camel.apache.org/schema/blueprint">
    <route>
        <from uri="direct:start"/>
            <setHeader headerName="CamelInfinispanOperation">
                <constant>CamelInfinispanOperationQuery</constant>
            </setHeader>
            <setHeader headerName="CamelInfinispanQueryBuilder">
                <method ref="queryBuilder" method="getBuilder"/>
            </setHeader>
        <to uri="infinispan://localhost?cacheContainer=#cacheManager&cacheName=remote_query_cache"/>
    </route>
</camelContext>
----
====

The `remote_query_cache` is an arbitrary name for a cache that holds the data, and the results of the query will be a list of domain objects stored as a `CamelInfinispanOperationResult` header. 

In addition, there are the following requirements:  

* The [class]``RemoteCacheManager`` must be configured to use [class]``ProtoStreamMarshaller``. 
* The [class]``ProtoStreamMarshaller`` must be registered with the [class]``RemoteCacheManager``'s serialization context. 
* The .proto descriptors for domain objects must be registered with the remote Data Grid server. 


== Custom Listeners for Embedded Cache

Custom Listeners for an embedded cache can be registered through the [parameter]``customListener`` parameter as shown below: 

.Using Java

[source,java,options="nowrap"]
----
from("infinispan://?cacheContainer=#myCustomContainer&cacheName=customCacheName&customListener=#myCustomListener")
  .to("mock:result");
----

.Using Blueprint

[source,xml,options="nowrap"]
----
<bean id="myCustomContainer" org.infinispan.manager.DefaultCacheManager"
      init-method="start" destroy-method="stop">
      <argument value="infinispan.xml" />
</bean>

<bean id="myCustomListener" class="org.example.com.CustomListener"/>
   
<camelContext id="route" xmlns="http://camel.apache.org/schema/blueprint">
    <route>
        <from uri="infinispan://?cacheContainer=#myCustomContainer&cacheName=customCacheName&customListener=#myCustomListener"/>
        <to uri="mock:result"/>
    </route>
</camelContext>
----


The instance of [class]``myCustomListener`` must exist.
Users are encouraged to extend the [class]``org.apache.camel.component.infinispan.embedded.InfinispanEmbeddedCustomListener`` and annotate the resulting class with the `@Listener` annotation from [package]#org.infinispan.notifications#
. 

[NOTE]
====
Custom filters and converters for embedded caches are currently not supported. 
====


== Custom Listeners for Remote Cache

Custom listeners for a remote cache can be registered in the same way as an embedded cache, with the exception that [parameter]``sync=false`` must be present.
For instance: 

.Using only Java
====
[source,java,options="nowrap"]
----
from(infinispan://?cacheContainer=#cacheManager&sync=false&customListener=#myCustomListener")
  .to(mock:result);
----
====

.Using Blueprint and Java
====
.Java class:  
[source,java,options="nowrap"]
----

public class RemoteCacheManagerFactory {      
    ConfigurationBuilder clientBuilder;
    public RemoteCacheManagerFactory(String hostname, int port) {
        clientBuilder = new ConfigurationBuilder();
        clientBuilder.addServer()
            .host(hostname).port(port);
    }
    public RemoteCacheManager newRemoteCacheManager() {
        return new RemoteCacheManager(clientBuilder.build());
    }
}
----
.blueprint.xml: 
[source,xml,options="nowrap"]
----
<bean id=”remoteCacheManagerFactory” class=“com.datagrid.RemoteCacheManagerFactory”>  
    <argument value=”localhost”/>      
    <argument value="11222”/>      
</bean>
 
<bean id=”cacheManager”
    factory-ref=”remoteCacheManagerFactory” 
    factory-method=“newRemoteCacheManager”>   
</bean>

<bean id="myCustomListener" class="org.example.com.CustomListener"/>

<camelContext id="route" xmlns="http://camel.apache.org/schema/blueprint">
    <route>
        <from uri="infinispan://?cacheContainer=#cacheManager&sync=false&customListener=#myCustomListener"/>
        <to uri="mock:result"/>
    </route>
</camelContext>
----
====

The instance of [class]``myCustomListener`` must exist.
Users are encouraged to extend the [class]``org.apache.camel.component.infinispan.remote.InfinispanRemoteCustomListener`` class and annotate the resulting class with ``@ClientListener``; this annotation is found in [package]#org.infinispan.client.hotrod.annotation#
. 

Remote listeners may also be associated with custom filters and converters as shown below:  
[source,java,options="nowrap"]
----
@ClientListener(includeCurrentState=true, filterFactoryName = "static-filter-factory", converterFactoryName = "static-converter-factory")
  private static class MyCustomListener extends InfinispanRemoteCustomListener {
}
----

In order to use custom filters or converters classes annotated with `@NamedFactory` must be implemented.
A skeleton that implements the necessary methods is shown below:  
[source,java,options="nowrap"]
----
import org.infinispan.notifications.cachelistener.filter;

@NamedFactory(name = "static-converter-factory")
public static class StaticConverterFactory implements CacheEventConverterFactory {
  @Override
  public CacheEventConverter<Integer, String, CustomEvent> getConverter(Object[] params) {
    ...
  }

  static class StaticConverter implements CacheEventConverter<Integer, String, CustomEvent>, Serializable {
    @Override
    public CustomEvent convert(Integer key, String previousValue, Metadata previousMetadata, 
                               String value, Metadata metadata, EventType eventType) {
      ...
    }
  }
}
   
@NamedFactory(name = "static-filter-factory")
public static class StaticCacheEventFilterFactory implements CacheEventFilterFactory {
  @Override
  public CacheEventFilter<Integer, String> getFilter(final Object[] params) {
    ...
  }

  static class StaticCacheEventFilter implements CacheEventFilter<Integer, String>, Serializable {
    @Override
    public boolean accept(Integer key, String previousValue, Metadata previousMetadata, 
                          String value, Metadata metadata, EventType eventType) {
      ...
    }
  }
}
----

Custom filters and converters must be registered with the server.
. 

[NOTE]
====
In order to listen for remote HotRod events the cacheManager must be of type [class]``RemoteCacheManager`` and instantiated. 
====



== 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

[source,java]
----
org.apache.camel.component.infinispan.processor.idempotent.InfinispanIdempotentRepository:
----

[source,xml]
----
<!-- set up the cache manager -->
<bean id="cacheManager"
      class="org.infinispan.manager.DefaultCacheManager"
      init-method="start"
      destroy-method="stop"/>

<!-- set up the repository -->
<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:

[source,xml]
----
<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>
----