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Amsterdam, 14-16 November | @HL7 @FirelyTeam | #fhirdevdays18 | www.fhirdevdays.com
Apache Camel and HAPI-FHIR, an open source solution
John Poth, Red Hat
Summary
• Introduction to Apache Camel• FHIR use cases (code involved)• Camel ecosystem (tooling, monitoring, management)• Live demo (if time permits)
About me
• Name: John Poth• Company: Red Hat• Background:
• Red Hat Fuse• camel-fhir author• 8+ years integration• github.com/johnpoth• @pothjohn• jpoth on Freenode
What do we mean by Integration?
System A System B
Apache Camel is the glue between disparate systems
Transport A
Data format A
Transport B
Data format B
Enterprise Integration
• Published 2003• Contains 65 integration patterns
Enterprise Integration Patterns (EIP)
Content based router
Data type transformation
Endpoint
Resequencer
Dynamic router
Splitter
Aggregator
Content enricher
Message
Apache Camel as the implementation
Where can I run Camel
Java & XML Domain Specific Language (DSL)
XML JAVA
Camel vs World (Components)
Saas
IoT
Enterprise
Public Cloud
● File● FTP● HTTP● TCP/UDP● JMS● JPA● SQL● ….
● Salesforce● SAP● ServiceNow● Gmail● ...
● Google● AWS● AZURE● Kubern
etes● MQTT● CoAP
Extensibility is key
Camel
SPI
SPIEvents
Custom solution
Custom solution
Custom solution
Extensibility is key
Camel
SPI
SPIEvents
Extensibility is at the core of Camel
● EventNotifierSupport● Dataformat● Component● TypeConverter● Registry● Language
● CamelContextStartedEvent● DefaultEventFactory● ExchangeCompletedEvent● ExchangeCreatedEvent● ExchangeFailedEvent● FailureEvent● RouteAddedEvent● RouteRemovedEvent● RouteStartedEvent● RouteStoppedEvent● ServiceStartupFailureEvent● ServiceStopFailureEvent● ….
What is camel-fhir ? (2.23.0-SNAPSHOT)
• Embeds HAPI-FHIR FHIR client• https://github.com/jamesagnew/ha
pi-fhir
• Adds FHIR component/ Dataformats
• Spring boot starters and auto configuration, Karaf features
CAMEL-FHIR API
• FhirCapabilities• FhirCreate• FhirDelete• FhirHistory• FhirLoadPage• FhirValidate
● Interceptors ( Authentication, GzIp, Logging...)● Client configuration (Performance tuning, time
outs ..)● Alternative HTTP Client Providers● Parser options● Encoding● ...
• FhirMeta• FhirOperation• FhirPatch• FhirRead• FhirSearch• FhirTransaction• FhirUpdate
Client API Configuration
Where does camel-fhir fit?
V2 EHRLOINC
Where does camel-fhir fit?
V2 EHRLOINCIntegration
Engine
Scenario 1: Import CSV
• Poll directory containing CSV files representing Patients
• Convert to FHIR DSTU3 Patient• Upload to FHIR server• EXTENDED: error handling• EXTENDED: Redelivery
Scenario 1: Importing CSV
Scenario 1 Extended: Error handling
Scenario 1 Extended: Redelivery
Scenario 2
• Expose a RESTful API that accepts a MRN
• Query FHIR Server for the Patient resource and all related Observations in Parallel
• Convert to HL7 V2 message• Insert message into HL7 server• Return response
Scenario 2
Scenario 2
Scenario 3
• Expose a RESTful API that accepts a “,” separated list of MRNs
• Fetch Patient from FHIR server• Convert to Salesforce Electronic
Health record• ‘Upsert’ into Salesforce• Handle each MRN in a separate
thread
Scenario 3
Scenario 3
Open source and Electronic Data Interchange (EDI)
https://www.hl7.org/fhir/patient-mappings.html
Documentation
https://github.com/apache/camel/tree/master/components/camel-fhir/camel-fhir-component/src/main/docs
Camel Tooling https://github.com/camel-tooling
Camel monitoring https://github.com/hawtio
Camel community
• Github: https://github.com/apache/camel• Website (under construction): https://camel.apache.org• Issue tracker: https://issues.apache.org/jira/projects/CAMEL• Mailing list: http://camel.apache.org/mailing-lists.html• IRC chat: http://camel.apache.org/irc-room.html• Gitter chat: https://gitter.im/apache/apache-camel
Additional Resources: http://camel.apache.org/books.html
DEMO
