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The ServiceMix Drools component provides JBI integration to the Drools Rules Engine.

This Service Engine It can be used to deploy a rules set that will implement a router or an actual service.

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This component can also be used to implement a real service, as shown in the Fibonnacci example. The service can act as a consumer and create / send exchanges by using the client provided by the jbi helper.

Maven Archetype

You can create a Drools Service Unit using the servicemix-drools-service-unit Maven archetype:

Code Block
mvn archetype:create \ -DarchetypeGroupId=org.apache.servicemix.tooling \ -DarchetypeArtifactId=servicemix-drools-service-unit \ -DarchetypeVersion=2010.

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01 \
  -DgroupId=your.group.id \
  -DartifactId=your.artifact.id \
  -Dversion=your-version

Once you've customized the service unit, simply install the SU:

Code Block
mvn install

Info

Remember that to be deployable in ServiceMix, the ServiceUnit has to be embedded in a Service Assembly: only the Service Assembly zip file can be deployed in ServiceMix.
To add your SU in a SA, you need to define it in the dependency sets:

Code Block
<dependency> <groupId>your.group.id</groupId> <artifactId>your.artifact.id</artifactId> <version>your-version</version> </dependency>

Endpoint Configuration

Code Block

lang	xml


<beans xmlns:drools="http://servicemix.apache.org/drools/1.0"
       xmlns:replaceMe="http://servicemix.apache.org/replaceMe">

  <drools:endpoint service="replaceMe:serviceName" endpoint="drools"
    ruleBaseResource="classpath:router.drl"
    namespaceContext="#nsContext"/>

  <drools:namespace-context id="nsContext">
    <drools:namespaces>
      <drools:namespace prefix="bar">http://servicemix.apache.org/bar</drools:namespace>
    </drools:namespaces>
  </drools:namespace-context>

</beans>

Info

title	Endpoint Attributes
borderStyle	solidbgColor='lightblue'

Name	Type	Description	Required
endpoint	String	JBI Endpoint Name	no (will be auto-generated if not specified
service	QName	JBI Server Name	no (will be auto-generated if not specified)
ruleBaseResource	URL	DRL File	The path to the DRL file	yes
namespaceContext	namespace-context bean	Drool Namespace Context	no

JBI Helper

Note that this component is only available in releases >= 3.1 and deprecate the older lightweight Drools component

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DRL files deployed to the `servicemix-drools` engine have access to a `JbiHelper` class in a global variable named `jbi` which provides the following attributes and methods:
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Child pages

Versions Compared

Old Version 6

New Version Current

Key

Maven Archetype

Endpoint Configuration

JBI Helper

DRL files deployed to the `servicemix-drools` engine have access to a `JbiHelper` class in a global variable named `jbi` which provides the following attributes and methods:
...

Child pages

Page History

Versions Compared

Old Version 6

New Version Current

Key

Maven Archetype

Endpoint Configuration

JBI Helper

DRL files deployed to the servicemix-drools engine have access to a JbiHelper class in a global variable named jbi which provides the following attributes and methods:...

DRL files deployed to the `servicemix-drools` engine have access to a `JbiHelper` class in a global variable named `jbi` which provides the following attributes and methods:
...