Aug 31

In this article I discuss and illustrate a “SOA-less” solution in which the Oracle SOA Suite 11g R2 B2B receives a stream of different HL7 v2 delimited messages types (A01 and A03) using a single inbound adapter. The messages are converted into their “equivalent” HL7 v2 XML messages. I say “SOA-less” because all the work is done entirely within the B2B part of the SOA Suite – no OSB or SOA Composites are involved.

This article demonstrates one way in which different message types can be accepted through one inbound adapter.

The complete text of the article is availabloe at http://blogs.czapski.id.au/wp-content/uploads/2010/08/07_Oracle_SOA_Suite_B2B_Receiving_Stream_of_Multiple_HL7_v2_Message_Types_v1.0.2.pdf.

Aug 30

In this article I discuss and illustrate a “SOA-less” solution which uses the Oracle SOA Suite 11g R2 B2B functionality to convert HL7 v2 delimited messages into their equivalent HL7 v2 XML messages. I say “SOA-less” because all the work is done entirely within the B2B part of the SOA Suite – no OSB or SOA Composites are involved.

The article text is available at http://blogs.czapski.id.au/wp-content/uploads/2010/08/06_Oracle_SOA_Suite_B2B_Quick_HL7v2_Delimited_to_HL7v2_XML_Conversion_v1.0.0.pdf

Jun 27

This article is a follow on to the “Oracle SOA Suite 11g HL7 Inbound Example – Functional ACK Addendum” article and the “Oracle SOA Suite 11g HL7 Inbound – Customized HL7 Message Structure and Data Validation” article.  In these articles the B2B infrastructure was configured to return the “Functional ACK” when it validated each message. The ACK was a positive or a negative ACK depending on whether the message passed validation. The ACK was generated by the B2B Layer before the message was passed on to the SOA Layer.

In this article I expand on the previous posts by configuring the B2B Layer to pass the message to the SOA Layer and pass the Functional ACK, generated by the SOA Layer on to the requester. To process a message and produce the ACK we will build and deploy a new SOA Composite.

The text of the article is to be found at http://blogs.czapski.id.au/wp-content/uploads/2010/06/05_Oracle_SOA_Suite_HL7_inbound_example_BackEnd_ACK_Addendum_v0.1.0.pdf.

Jun 26

Messages we used in previous articles dealing with HL7 Inbound (Oracle SOA Suite 11g HL7 Inbound Example – Functional ACK Addendum, Oracle SOA Suite 11g HL7 Inbound Example) were not strictly speaking valid according to the default HL7 V2 ADT A01 message specification produced by the Oracle B2b Document Editor. Both the message structure was not quite right and the data was not quite right. To allow such messages in, we disabled Validation property in the B2B Trading Partnership Agreement.

In this article we will alalyze the data and  create a customized HL7 v2 ADT A01 structure which will allow us to successfully validate incoming messages. We will then modify the document definition and Partnership Agreements to use this custom structure and validate messages as they come in.

The customization discussed in this article only scratches the surface of what is possible with the Oracle B2B Document Editor.

The complete text of the article is available at http://blogs.czapski.id.au/wp-content/uploads/2010/06/04_Oracle_SOA_Suite_HL7_inbound_Customising_Message_Structure_v0.1.1.pdf

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Jun 25

In this article I develop and exercise a simple Oracle SOA Suite 11g B2B infrastructure-based HL7 v2 Sender (outbound) project for an ADT A01 message and use Message tracker to view messages.

This article complements previous articles in the series, Oracle SOA Suite 11g HL7 Inbound Example and Oracle SOA Suite 11g HL7 Inbound Example – Functional ACK Addendum.

The text of the article, 03_Oracle_SOA_Suite_HL7_outbound_example_v0.1.0.pdf, is available at http://blogs.czapski.id.au/wp-content/uploads/2010/06/03_Oracle_SOA_Suite_HL7_outbound_example_v0.1.0.pdf

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Jun 23

This article is a follow on to the “Oracle SOA Suite 11g HL7 Inbound Example”, at http://blogs.czapski.id.au/2010/06/oracle-soa-suite-11g-hl7-inbound-example. In that article the B2B infrastructure was configured to return the “immediate ack” as soon as it received each message. The ACK was always a positive ACK, regardless of whether the message was valid or not and whether it was successfully processed.

In this article I expand on the previous post by adding the Functional ACK, an explicit ACK message, which is returned after a message is parsed and validated, if validation is required. This means that rather than always returning an ACK the receiver will return a NAK if the message is invalid.

The article, 02_Oracle_SOA_Suite_HL7_inbound_example_ACK_Addendum_v0.2.3.pdf, is available at http://blogs.czapski.id.au/wp-content/uploads/2010/06/02_Oracle_SOA_Suite_HL7_inbound_example_ACK_Addendum_v0.2.3.pdf

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Jun 19

As Sun Microsystems, and SeeBeyond before it, Oracle provides support for integration of systems which use HL7 v2.x messaging. Unlike Sun, and SeeBeyond before it, Oracle treats HL7 messaging as Business to Business exchanges (B2B) and uses the B2B part of the Oracle SOA Suite to accomplish the task [1].

In this article I develop and exercise a simple Oracle SOA Suite 11g B2B infrastructure-based HL7 v2 Receiver project for an ADT A01 message and use Message tracker to view messages, message states and messaging performance.

The complete article, 02_Oracle_SOA_Suite_HL7_inbound_example_v0.2.1.pdf, can be found at http://blogs.czapski.id.au/wp-content/uploads/2010/06/02_Oracle_SOA_Suite_HL7_inbound_example_v0.2.1.pdf

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Jun 19

As Sun Microsystems, and SeeBeyond before it, Oracle provides support for integration of systems which use HL7 v2.x messaging. Unlike Sun, and SeeBeyond before it, Oracle treats HL7 messaging as Business to Business exchanges (B2B) and uses the B2B part of the Oracle SOA Suite to accomplish the task [1].

There are numerous articles on Oracle SOA Suite and on Oracle B2B. To wade through this material to get to a concise set of steps needed to get started with HL7 messaging is a chore precisely because there is so much material about the SOA Suite and so little on how to deal with HL7 suing it. I set off to work out what it takes to do HL7 messaging and to document it for myself and others.

This article walks through the installation and configuration of all Oracle software necessary to implement HL7 v2.x messaging as development / experimentation environment. It assumes a single machine with limited resources.

I expect that there will be subsequent articles in this series which will use this infrastructure to implement specific HL7 v2.x examples.

The complete article, 01_Installing_Oracle_SOA_Suite_for_HL7_exploration_v1.1.pdf, can be found at http://blogs.czapski.id.au/wp-content/uploads/2010/06/01_Installing_Oracle_SOA_Suite_for_HL7_exploration_v1.1.pdf.

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Apr 25

From time to time prospective clients ask for a proof that Java CAPS will not loose HL7 messages in the event of machine or network failure.

In this Note a heterogeneous, non-clustered collection of hosts will be used to implement and exercise Java CAPS 6/Repository HL7 v2 based solutions. The environment consists of two independent “machines”, which are not a part of an Operating System Cluster. Each “machine” hosts a GlassFish Application Server, which is the Java CAPS 6 runtime. Application Servers are independent of one another and are not clustered. This is to demonstrate that HL7 processing components, and solutions based on these components and other standard components in the Java CAPS infrastructure, can be designed and implemented in such a way that message loss in the event of typical failure and disruption scenarios is avoided.

This note discusses an exercise involving an example healthcare environment processing HL7 v2 messages. Discussion includes customization of a generic Java CAPS 6.2 VMware Virtual Appliance for a specific HL7 exercise and deploying ready-made Java CAPS 6/Repository-based solutions. The exercise for HL7 eWay and HL7 Inbound and Outbound projects, processing HL7 v2.3.1 messages, will be conducted and discussed.

The reader will be convinced that a resilient Java CAPS solution can be configured and that it will process messages in the face of typical failure and disruption scenarios without message loss or duplication.

Note that this article is not introductory in nature. It assumes that the reader has a fairly good working knowledge of the Java CAPS 5 or Java CAPS 6/Repository product and a good working knowledge of related areas, such as HL7 messaging, virtualisation and suchlike. These matters are not explained in this article.

The note is available as 03_Conducting_JavaCAPS_6_HL7_Resilience_Exercise_v1.0.0.0.pdf at http://blogs.czapski.id.au/wp-content/uploads/2010/04/03_Conducting_JavaCAPS_6_HL7_Resilience_Exercise_v1.0.0.0.pdf

Kiran Busi pointed out o me that the project export links in the PDF documehnt are broken. Here they are, correct this time. It is less trouble to post them here then to modify the PDF and re-post that.

JC62_HL7_Resilience_Project_Exports_no_Envs – http://blogs.czapski.id.au/wp-content/uploads/2010/04/JC62_HL7_Resilience_Project_Exports_no_Envs.zip

JC62_HL7_Resilience_Project_Exports_with_Envs – http://blogs.czapski.id.au/wp-content/uploads/2010/04/JC62_HL7_Resilience_Project_Exports_with_Envs.zip

Apr 24

From time to time prospective clients ask for a proof that Java CAPS will not loose HL7 messages in the event of machine or network failure.

This note walks through the process of installing a Java CAPS 6.2 runtime on the Base OpenSolaris-based VMware Virtual Appliance, discussed in the Blog Entry “GlassFish ESB v2.x Field Notes – Preparing Basic JeOS Appliance for GlassFish ESB LB and HA Testing” at http://blogs.czapski.id.au/2010/01/glassfish-esb-v2-x-field-notes-preparing-basic-jeos-appliance-for-glassfish-esb-lb-and-ha-testing.

At the end of the Note we will have a Java CAPS 6.2 VMware Appliance with Java CAPS 6.2 Runtime infrastructure, ready to use for reliability testing, or any other purpose for which a Java CAPS 6.2 runtime appliance might be appropriate.

The Note is available at “http://blogs.czapski.id.au/wp-content/uploads/2010/04/02_Installing_JavaCAPS_6.2_on_JeOS_appliance_v1.0.0.0.pdf“.

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