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• Message Queue Services are a common means for Enterprise Application Integration (EAI). Users who operate a Message Queue Service want to integrate their applications with JS7. Patterns for EAI include:
  • applications send sending requests to add orders to workflows by use of using the JS7 - REST Web Service API.
  • applications receive receiving processing results from jobs and workflows executed with by JS7.
• EAI scenarios provide the following advantages:
  • reduce reduction of complexity:
    • at the topological level each application implements only one interface to the Message Queue Service.
    • of error handling as a Message Queue Service is considered to be highly available.
  • manage centralized management of messages centrally.
• The JMS integration scenario includes a separate Java-based consumer to be which is implemented in order to receive and to parse messages and to translate messages into requests to add orders. Reasons for this decision approach include:
  • JMS is standardized. However, however, the content and format of messages requires individual parsing.
  • JS7 offers a JSON based REST Web Service API that can be used by any consumer to add orders by using REST API calls.

Use with Generic Jobs

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• The implementation is independent from of the JS7 release and consists of Java examples that are separately available, see the references below references.

Scenario 1: Detached JS7 JMS Interface

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• Creates a text message in JSON format for the queue "Workflows". The content of the message is could be, for example:

  {"controllerId":"testsuite","orders":[{"workflowPath":"/JS7Demo/01_HelloWorld/jdHelloWorld","scheduledFor":"now"}],"auditLog":{}}

• sends Sends the message to the specific queue.

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• Reads a message from the queue „Workflows" and sends the JSON body by use of using the JS7 REST Web Service API.

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• A Java job runs in a workflow and implements the Producer to send information to the Message Queue Service after completion of a number of JS7 - Job Instructions in a workflow.
• A Java job runs in a workflow and implements the Consumer, i.e. connects to the Message Queue Service to check for new messages that include parameterization to add parameters for adding orders to JS7.
• The Producer as well as the Consumer can run in any workflow.

2. Producer

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The pre-processing includes to:

• merge merging the received XML snippet of a YADE configuration into the existing configuration:
  • determine from the delivered nodes determining which options have to be changed from the nodes that are delivered
  • extracting extract the values
  • map mapping the extracted values to the relevant options

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• The implementation allows a Message Service to be used in order to forward notifications to a System Monitor 
• Support for notifications via Message Services is added with 

  Jira
  server SOS JIRA columns key,summary,type,created,updated,due,assignee,reporter,priority,status,resolution serverId 6dc67751-9d67-34cd-985b-194a8cdc9602 key JITL-280

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