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A (XPages) developers guide to Cloudant
Frank van der Linden presented on connecting XPages applications to Cloudant. He began with an introduction to Cloudant, describing it as the cloud version of CouchDB that stores data as JSON documents. He then covered how to connect to Cloudant directly via REST or through an OSGi plugin, and described storing and retrieving data from Cloudant using a Java connector. Finally, he demonstrated integrating Cloudant with an XPages application to store and search job documents, attachments, and rich text.
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A (XPages) developers guide to Cloudant
- 1. 8th Sutol Conference,November 2016 A (XPages) developers guide to Cloudant Frank van der Linden
- 2. 8th Sutol Conference,November 2016
- 3. 8th Sutol Conference,November 2016 About me • Freelance Java and web developer, with XPages experience • …..and JEE technologies • Owner of Elstar IT • Frequent (trail)runner
- 4. 8th Sutol Conference,November 2016 Roadmap • Introduction to Cloudant • Inside Cloudant • Connect to Cloudant • Cloudant @ XPages
- 5. 8th Sutol Conference,November 2016 Why Cloudant • For HR Assistant wanted to try a new datastore
- 6. 8th Sutol Conference,November 2016 Introduction to Cloudant
- 7. 8th Sutol Conference,November 2016 What is Cloudant • It is the cloud version of CouchDb • It is document based • CouchDb is created by Damien Katz • Cloudant is bought by IBM • Is like MongoDb or NSF a NoSQL datastore
- 8. 8th Sutol Conference,November 2016 What is Cloudant • Data stored as JSON • View and Search ‘formula’ with javascript • Replication • Tasks • Build in API • No annoying limitations
- 9. 8th Sutol Conference,November 2016 Cloudant as service • Cloudant can be added as service in BlueMix
- 10. 8th Sutol Conference,November 2016 Cloudant standalone • Via website, https://cloudant.com cloudant.com
- 11. 8th Sutol Conference,November 2016 Inside Cloudant
- 12. 8th Sutol Conference,November 2016 Inside Cloudant
- 13. 8th Sutol Conference,November 2016 Inside Cloudant • View mapping • Search index
- 14. 8th Sutol Conference,November 2016 Connect to Cloudant
- 15. 8th Sutol Conference,November 2016 Connect to Cloudant • Direct via REST • https://someusername:secret@account.cloudant.com • Via a OSGi Plugin, uses the HTTPConnection • https://bitbucket.org/flinden68/cloudant-connector
- 16. 8th Sutol Conference,November 2016 Connect to Cloudant • Credentials • Account, necessary for the OSGi plugin
- 17. 8th Sutol Conference,November 2016 Connect to Cloudant • It is JSON everywhere • _rev and _id are reserved parameters • doc{}, is the actual data from application
- 18. 8th Sutol Conference,November 2016 Cloudant connector • Storing in and retrieving from Cloudant • Accessed from Java backend. • Will take out the security issues. • Do the heavy lifting. • Don't reinvent the wheel.
- 19. 8th Sutol Conference,November 2016 Cloudant @ XPages
- 20. 8th Sutol Conference,November 2016 Cloudant @ XPages
- 21. 8th Sutol Conference,November 2016 Cloudant @ XPages
- 22. 8th Sutol Conference,November 2016 Cloudant @ XPages • Repeat in XPages • columns - values from Job class
- 23. 8th Sutol Conference,November 2016 Cloudant @ XPages • JobController - getJobs
- 24. 8th Sutol Conference,November 2016 Cloudant @ XPages • Job Java Class
- 25. 8th Sutol Conference,November 2016 Cloudant @ XPages • CloudantDAO
- 26. 8th Sutol Conference,November 2016 Cloudant @ XPages • CloudantService - connect • Find the data in Cloudant
- 27. 8th Sutol Conference,November 2016 Cloudant @ XPages • Job JSON in Cloudant
- 28. 8th Sutol Conference,November 2016 Attachment @ Cloudant • Stored as base64 encoded String • Can be as standalone • Or as part of Document (we choose this way) • Store id as attachmentId, so it can be retrieved when needed
- 29. 8th Sutol Conference,November 2016 Attachment @ Cloudant • AttachmentDAO
- 30. 8th Sutol Conference,November 2016 Attachment @ Cloudant • AttachmentController • Convert upload to Attachment object
- 31. 8th Sutol Conference,November 2016 Attachment @ Cloudant • ControllerBase • All controllers can use these methods
- 32. 8th Sutol Conference,November 2016 Attachment @ Cloudant • Servlet is called in application for download • base64 data for the image tag
- 33. 8th Sutol Conference,November 2016 RichText @ Cloudant • Stored as MultiMimePart
- 34. 8th Sutol Conference,November 2016 RichText @ Cloudant • Which is nice converted to JSON ;-)
- 35. 8th Sutol Conference,November 2016 Search @ Cloudant • Search example, filter the view
- 36. 8th Sutol Conference,November 2016 Search @ Cloudant • Do the search in the Controller, call DAO
- 37. 8th Sutol Conference,November 2016 Search @ Cloudant • Search method calls the CloudantService
- 38. 8th Sutol Conference,November 2016 Search @ Cloudant • CloudantService calls connector to get the data
- 39. 8th Sutol Conference,November 2016 Search @ Cloudant • CloudantService calls connector to get the data
- 40. 8th Sutol Conference,November 2016 Search @ Cloudant • Cloudant job ftSearch index
- 41. 8th Sutol Conference,November 2016 Resources • OSGi Cloudant connector – https://bitbucket.org/flinden68/cloudant-connector • Cloudant documentation – https://docs.cloudant.com/ • HR Assistant – hrassistant.eu-gb.mybluemix.net – github.com/flinden68/HR-Assistant
- 42. 8th Sutol Conference,November 2016
- 43. 8th Sutol Conference,November 2016 Thank you
- 44. 8th Sutol Conference,November 2016