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Difference between revisions of "SMILA/Documentation/QueueWorker/Router"
| Line 52: | Line 52: | ||
</RouterConfig> | </RouterConfig> | ||
</source> | </source> | ||
| + | |||
| + | == Condition == | ||
| + | Processing Rule is found by value of Condition tag. | ||
| + | Condition is a String whose syntax is based on a subset of the SQL92 conditional expression syntax pointed in JMS specification. [[http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/jms/Message.html|JMS Message spec]] | ||
| + | |||
| + | For Router it operates with two properties | ||
| + | * Operation | ||
| + | * DataSourceID | ||
| + | |||
== Tasks == | == Tasks == | ||
Revision as of 10:22, 20 August 2008
What is Router
The main goal of Router is to put Record into JMS queue but it also make any Queue Worker specific tasks like executing BPEL piplene.
Interface
public enum Operation { ADD, DELETE, NONE }
public interface Router extends QueueWorker { void route(Record record, Operation operation) throws RouterException; }
Configuration
Schema:org.eclipse.eilf.connectivity.queue.worker/schemas/QueueWorkerConfig.xsd
Configuration is a list of routing rules.
Configuration Sample
<RouterConfig xmlns="http://www.eclipse.org/eilf/queue" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="schemas/QueueWorkerConfig.xsd" > <Rule Name="Default ADD Rule"> <Condition>Operation='ADD'</Condition> <Task> <Synchronize Filter="only-attributes"/> <Send BrokerId="broker1" Queue="EILF.connectivity"/> </Task> </Rule> <Rule Name="Default DELETE Rule"> <Condition>Operation='DELETE'</Condition> <Task> <Synchronize Filter="no-filter"/> <Send BrokerId="broker1" Queue="EILF.connectivity"> <SetProperty Name="doSomething">really do something</SetProperty> </Send> </Task> </Rule> </RouterConfig>
Condition
Processing Rule is found by value of Condition tag. Condition is a String whose syntax is based on a subset of the SQL92 conditional expression syntax pointed in JMS specification. [Message spec]
For Router it operates with two properties
- Operation
- DataSourceID
Tasks
<Synchronize Filter="no-filter"/>Executes synchronization of Record with Blackboard service. Optional Filter attribute point that Record should be filtered before next step.
<Process Workflow="AddPipeline"/>Executes BPEL pipeline.
<Send BrokerId="broker1" Queue="EILF.connectivity"> <SetProperty Name="doSomething">really do something</SetProperty> </Send>
Send Record to JMS queue. Broker connection with correspondent BrokerID should be specified in Broker Connection Service configuration