Version 5.3 of Drools introduced the ability to declare Knowledge Listeners via the Spring XML. You could declare 3 types of listeners to be added to the KnowledgeSessions - AgendaListener, WorkingMemoryListener, ProcessEventListener.
The drools-spring module allowed configuration of these listeners to KnowledgeSessions using XML tags. These tags have identical names as the actual listener interfaces i.e., <drools:agendaEventListener....>, <drools:workingMemoryEventListener....> and <drools:processEventListener....>.
http://docs.jboss.org/drools/release/5.3.0.Final/droolsjbpm-integration-docs/html/ch02.html#d0e509
The upcoming 5.5.0.Beta1 would include the following enhancements to the drools-spring module
Support declarative configuration for knowledge runtime loggers (console, file, threaded-file)
With this addition, all the requisite loggers can be defined declaratively and attached to the Knowledge Sessions. All the logger types supported by Drools Expert can be configured via XML.
You can find more information on the options and the corresponding Java Code here: https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-container/drools-spring/src/test/resources/org/drools/container/spring/loggers.xml
https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-container/drools-spring/src/test/java/org/drools/container/spring/SpringDroolsLoggersTest.java
Defining an environment (org.drools.runtime.Environment)
https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-container/drools-spring/src/test/java/org/drools/container/spring/EnvironmentTest.java
Author
Vinod Kiran
BRMS Practice Lead with ValueMomentum Software Services Pvt. Ltd
http://www.linkedin.com/in/vinodkiran
The drools-spring module allowed configuration of these listeners to KnowledgeSessions using XML tags. These tags have identical names as the actual listener interfaces i.e., <drools:agendaEventListener....>, <drools:workingMemoryEventListener....> and <drools:processEventListener....>.
http://docs.jboss.org/drools/release/5.3.0.Final/droolsjbpm-integration-docs/html/ch02.html#d0e509
The upcoming 5.5.0.Beta1 would include the following enhancements to the drools-spring module
Support declarative configuration for knowledge runtime loggers (console, file, threaded-file)
With this addition, all the requisite loggers can be defined declaratively and attached to the Knowledge Sessions. All the logger types supported by Drools Expert can be configured via XML.
<drools:ksession id="…" type="…" kbase="…"> <drools:consoleLogger/> … </drools:ksession> <drools:ksession id="…" type="…" kbase="…"> <drools:fileLogger id="…" file="[path]"/> </drools:ksession> <drools:ksession id="…" type="…" kbase="…"> <drools:fileLogger id="…" file="[path]" threaded="true" interval="5"/> </drools:ksession>
You can find more information on the options and the corresponding Java Code here: https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-container/drools-spring/src/test/resources/org/drools/container/spring/loggers.xml
https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-container/drools-spring/src/test/java/org/drools/container/spring/SpringDroolsLoggersTest.java
Defining an environment (org.drools.runtime.Environment)
<drools:environment id="drools-env"> <drools:entity-manager-factory ref="myEmf"/> <drools:transaction-manager ref="txManager"/> <drools:globals ref="my-globals"/> <drools:date-formats ref="my-date-formats"/> <drools:calendars ref="my-calendars"/> <drools:object-marshalling-strategies> <drools:serializable-placeholder-resolver-strategy strategy-acceptor-ref=".."/> <drools:identity-placeholder-resolver-strategy strategy-acceptor-ref=".."/> <drools:jpa-placeholder-resolver-strategy env-ref=".." /> <drools:process-instance-resolver-strategy/> </drools:object-marshalling-strategies> <!-- <drools:scoped-entity-manager scope="app" > </drools:scoped-entity-manager> -->You can find more information on the configuration options and the corresponding Java Code here: https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-container/drools-spring/src/test/resources/org/drools/container/spring/environment.xml
https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/drools-container/drools-spring/src/test/java/org/drools/container/spring/EnvironmentTest.java
Author
Vinod Kiran
BRMS Practice Lead with ValueMomentum Software Services Pvt. Ltd
http://www.linkedin.com/in/vinodkiran

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