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Boost your JAVA Code with the
OpenNTF Domino API
Oliver Busse
We4IT GmbH, Germany
April 11, 2016
Oliver Busse
• „Bleeding Yellow“ since R4.5
• Software Architect at We4IT
• Member of the development team of
Aveedo® Application Framework
• IBM Champion for ICS in 2015 + 2016
• OpenNTF Member Director
• XPages Advocate
• IBM Bluemix curious
@zeromancer1972
www.oliverbusse.com
Agenda
• What is the OpenNTF Domino API?
• Setup and Implementation
• Other Considerations
• Tons of examples
What is the OpenNTF Domino API?
What is the OpenNTF Domino API?
• It‘s an open source project on OpenNTF
• It‘s was started in April 2013
• It‘s maintained by generous developers you may know
• It fills the gaps and gives the power you always wanted in Java for
Domino
• It‘s often refered to as „ODA“
What is the OpenNTF Domino API? (cont‘d)
• The ODA consists of several packages
• core
• formula
• rest
• xsp
• …
• It‘s an OSGi plugin
• It‘s designed for running on the Domino server (9.0.x+)
• It‘s designed for XPages (Java, SSJS) and Plugins
• It can‘t be used in Java Agents 
Key developers of the ODA
• Nathan T. Freeman (US/MX)
• Paul S. Withers (UK)
• Jesse Gallagher (US)
• Roland Praml (DE)
• Martin Jinoch (CZ)
• René Winkelmeyer (DE)
• Tim Tripcony † (#CodeForTim) (US)
Setup & Implementation
Resources
• Grab it from OpenNTF (recommended)
• http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20
API
• Grab it from the Git-Repo
• https://github.com/OpenNTF/org.openntf.domino
• Grab it from the OpenNTF Stash (latest)
• https://stash.openntf.org/projects/ODA
On your system
• Since the ODA is an OSGi plugin you can install it via the update site
mechanism
• It runs as an extension to the XSP runtime on the HTTP server JVM
• It comes with it‘s own logger
Setup: prepare the server
• Set the signer of the NSF as „Sign or run…“ in server
document‘s security section
Setup: prepare the updatesite
• Create an updatesite NSF
• Name it whatever you
want
• Make sure you set ACL to
let the server READ
documents
Setup: import ODA into update site
• Find the site.xml file to import it as a local update site
into your NSF
• After import goto „Actions, Sign all Content“
Setup: add the ODA to server startup
• Add a new line to your server‘s notes.ini file
• edit file manually or
• use a configuration setting (prefered)
• OSGI_HTTP_DYNAMIC_BUNDLES=updatesite.nsf
Setup: add the ODA to server startup
• This is what you should see when the server starts:
HTTP JVM: CLFAD0330I: NSF Based plugins are being installed
in the OSGi runtime. For more information please consult the
log
• Check the plugins with
– tell http osgi ss openntf
Setup: prepare Domino Designer
• Open DDE‘s preferences
• Goto „Domino Designer“ section
• Activate „Enable Eclipse plug-in install“
• Open the update site NSF you just created
• Goto „Actions, Show URLs“
• Copy one of the two URLs to clipboard
• Goto „File, Application, Install“
• Choose „Search for new features to install“
• On the next screen „Add (a) Remote Location“
• Enter a name for it and paste the URL in the clipboard
• On the next screen check the ODA entry and click next/yes if you are asked to
Other Considerations
Other Considerations
• ODA utilizes the OpenLog project
• XspOpenLogUtil.logEvent(…)
• XspOpenLogUtil.logError(…)
• Get familiar with the OpenLog project from OpenNTF
• Create a new OpenLog.nsf file in your server‘s root (if you haven‘t
already)
Examples
Examples
• Session handling
• View handling (loops)
• Document & Field handling
• DateTime enhancements
• Transactions
• Xots
• Graphs
Session handling
Session handling: different approaches
• Extension Library
• ExtlibUtil.getCurrentSession();
• ExtlibUtil.getCurrentSessionAsSigner();
• ExtlibUtil.getCurrentSessionAsSignerWithFullAccess();
• needs exception handling
• XSPUtil
• like ExtlibUtil
• needs exception handling
• Factory
• Factory.getSession();
• uses enums for different session types
• no exception handling needed!
View handling
View handling: what you are used to (1)
View handling: what you are used to (2)
What you now are able to do
Document handling
Safe lines of code by using new methods
• New creation methods
• Database.createDocument(String, Object, …)
• Database.createDocument(HashMap fields)
• Alternatives to replaceItemValue
• Document.put(String field, Object o)
• Document.putAll(HashMap fields)
• Alternatives to getItemValueXXX
• Document.get(Object o) // document acts like a Map<?>
• Document.getItemValue(String field, Class type)
getItemValue: what you are used to
• getItemValue returns a Vector
• Vectors are not type save
• editor / compiler complains non-type-safety
• they can contain „anything“
• you have to check what is inside
• if the item does not exist you are running into trouble…
getItemValue: what you can do now
• cast to a type of your choice
• ArrayList<?> values = doc.getItemValue(„foo", ArrayList.class);
• forget type safety
• define your own!
• a non existing item is returned as null, not as empty Vector
• can be handled
DateTime enhancements
DateTime enhancements
• Session.createDateTime(y,m,d,hh,mm,ss)
• uses int values
• conversion toJavaDate() not necessary
• DateTime.isBefore();
• DateTime.isAfter();
• useful comparisons
• DateTime.equalsIgnoreDate();
• DateTime.equalsIgnoreTime();
Transactions
Transactions
• ODA adds transactional capabilities to your Notes data
• You can modify documents without saving them
individually (e.g. in a loop)
• You can also rollback every modification if you need to
(e.g. when you run into an error)
Transactions (cont‘d)
• Create a new DatabaseTransaction object from the database
• DatabaseTransaction txn = db.startTransaction();
• Perform your modifications
• Decide whether to commit or rollback
• txn.commit();
• txn.rollback();
Xots
Xots
• Xots = XPages OSGi Tasklet Service
• It‘s the extended version of DOTS (Domino Tasklet Service)
• Executes up to 10x faster than Java Agent code
• Use cases
• Can be coded inside the NSF, no plugin project needed
• Multi-threaded tasks like Runnable, but you can return values
• Bulk execution of time consuming code
• very new feature (alpha)
Xots (cont‘d)
• Advantages
• More granular time and event triggering than in Agents
• Can run with server-side permissions
• Runs in a shared container (JVM) unlikely of an Agent which runs in a dedicated
JVM
• you can exchange data between tasklets
• It‘s coded in a plain Java class and not in an Agent design element
• You can use SCM systems
Xots (cont‘d)
• Core elements of tasklet
• Interface Callable<?>
• Interface Future<?>
• get() method to get the return value(s)
• only if you are interested in a return value
• Class Xots from the ODA
• submit() method to create a tasklet
• schedule() methods to create a periodic tasklet
• use the PeriodicScheduler!
Contribute!
Contribute to the ODA
• Get the sources
• the version on OpenNTF Stash should be the latest
• https://stash.openntf.org/projects/ODA
• Setup Eclipse (Luna+)
• Set „Access Restrictions“ to „Warning“
• Setup Maven (install e2m plugin)
• Setup Domino Build Management
Resources
• The XPages demo applications
• https://bitbucket.org/zeromancer1972/sutol-2015-oda-graph-demo
• A nice glossary
• http://www.intec.co.uk/from-xpages-to-web-app-glossary/
• OpenNTF Domino API
• http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API
• http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API%20Demo%20Database
• Xots
• http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-one/
• http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-two/
• http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-three/
• Domino Build Management
• https://www.openntf.org/main.nsf/project.xsp?r=project/IBM%20Domino%20Update%20Site%20for%20Build%20Management
Q & A
Utilizing the OpenNTF Domino API
www.we4it.com

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Utilizing the OpenNTF Domino API

  • 1. Boost your JAVA Code with the OpenNTF Domino API Oliver Busse We4IT GmbH, Germany April 11, 2016
  • 2. Oliver Busse • „Bleeding Yellow“ since R4.5 • Software Architect at We4IT • Member of the development team of Aveedo® Application Framework • IBM Champion for ICS in 2015 + 2016 • OpenNTF Member Director • XPages Advocate • IBM Bluemix curious @zeromancer1972 www.oliverbusse.com
  • 3. Agenda • What is the OpenNTF Domino API? • Setup and Implementation • Other Considerations • Tons of examples
  • 4. What is the OpenNTF Domino API?
  • 5. What is the OpenNTF Domino API? • It‘s an open source project on OpenNTF • It‘s was started in April 2013 • It‘s maintained by generous developers you may know • It fills the gaps and gives the power you always wanted in Java for Domino • It‘s often refered to as „ODA“
  • 6. What is the OpenNTF Domino API? (cont‘d) • The ODA consists of several packages • core • formula • rest • xsp • … • It‘s an OSGi plugin • It‘s designed for running on the Domino server (9.0.x+) • It‘s designed for XPages (Java, SSJS) and Plugins • It can‘t be used in Java Agents 
  • 7. Key developers of the ODA • Nathan T. Freeman (US/MX) • Paul S. Withers (UK) • Jesse Gallagher (US) • Roland Praml (DE) • Martin Jinoch (CZ) • René Winkelmeyer (DE) • Tim Tripcony † (#CodeForTim) (US)
  • 9. Resources • Grab it from OpenNTF (recommended) • http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20 API • Grab it from the Git-Repo • https://github.com/OpenNTF/org.openntf.domino • Grab it from the OpenNTF Stash (latest) • https://stash.openntf.org/projects/ODA
  • 10. On your system • Since the ODA is an OSGi plugin you can install it via the update site mechanism • It runs as an extension to the XSP runtime on the HTTP server JVM • It comes with it‘s own logger
  • 11. Setup: prepare the server • Set the signer of the NSF as „Sign or run…“ in server document‘s security section
  • 12. Setup: prepare the updatesite • Create an updatesite NSF • Name it whatever you want • Make sure you set ACL to let the server READ documents
  • 13. Setup: import ODA into update site • Find the site.xml file to import it as a local update site into your NSF • After import goto „Actions, Sign all Content“
  • 14. Setup: add the ODA to server startup • Add a new line to your server‘s notes.ini file • edit file manually or • use a configuration setting (prefered) • OSGI_HTTP_DYNAMIC_BUNDLES=updatesite.nsf
  • 15. Setup: add the ODA to server startup • This is what you should see when the server starts: HTTP JVM: CLFAD0330I: NSF Based plugins are being installed in the OSGi runtime. For more information please consult the log • Check the plugins with – tell http osgi ss openntf
  • 16. Setup: prepare Domino Designer • Open DDE‘s preferences • Goto „Domino Designer“ section • Activate „Enable Eclipse plug-in install“ • Open the update site NSF you just created • Goto „Actions, Show URLs“ • Copy one of the two URLs to clipboard • Goto „File, Application, Install“ • Choose „Search for new features to install“ • On the next screen „Add (a) Remote Location“ • Enter a name for it and paste the URL in the clipboard • On the next screen check the ODA entry and click next/yes if you are asked to
  • 18. Other Considerations • ODA utilizes the OpenLog project • XspOpenLogUtil.logEvent(…) • XspOpenLogUtil.logError(…) • Get familiar with the OpenLog project from OpenNTF • Create a new OpenLog.nsf file in your server‘s root (if you haven‘t already)
  • 20. Examples • Session handling • View handling (loops) • Document & Field handling • DateTime enhancements • Transactions • Xots • Graphs
  • 22. Session handling: different approaches • Extension Library • ExtlibUtil.getCurrentSession(); • ExtlibUtil.getCurrentSessionAsSigner(); • ExtlibUtil.getCurrentSessionAsSignerWithFullAccess(); • needs exception handling • XSPUtil • like ExtlibUtil • needs exception handling • Factory • Factory.getSession(); • uses enums for different session types • no exception handling needed!
  • 24. View handling: what you are used to (1)
  • 25. View handling: what you are used to (2)
  • 26. What you now are able to do
  • 28. Safe lines of code by using new methods • New creation methods • Database.createDocument(String, Object, …) • Database.createDocument(HashMap fields) • Alternatives to replaceItemValue • Document.put(String field, Object o) • Document.putAll(HashMap fields) • Alternatives to getItemValueXXX • Document.get(Object o) // document acts like a Map<?> • Document.getItemValue(String field, Class type)
  • 29. getItemValue: what you are used to • getItemValue returns a Vector • Vectors are not type save • editor / compiler complains non-type-safety • they can contain „anything“ • you have to check what is inside • if the item does not exist you are running into trouble…
  • 30. getItemValue: what you can do now • cast to a type of your choice • ArrayList<?> values = doc.getItemValue(„foo", ArrayList.class); • forget type safety • define your own! • a non existing item is returned as null, not as empty Vector • can be handled
  • 32. DateTime enhancements • Session.createDateTime(y,m,d,hh,mm,ss) • uses int values • conversion toJavaDate() not necessary • DateTime.isBefore(); • DateTime.isAfter(); • useful comparisons • DateTime.equalsIgnoreDate(); • DateTime.equalsIgnoreTime();
  • 34. Transactions • ODA adds transactional capabilities to your Notes data • You can modify documents without saving them individually (e.g. in a loop) • You can also rollback every modification if you need to (e.g. when you run into an error)
  • 35. Transactions (cont‘d) • Create a new DatabaseTransaction object from the database • DatabaseTransaction txn = db.startTransaction(); • Perform your modifications • Decide whether to commit or rollback • txn.commit(); • txn.rollback();
  • 36. Xots
  • 37. Xots • Xots = XPages OSGi Tasklet Service • It‘s the extended version of DOTS (Domino Tasklet Service) • Executes up to 10x faster than Java Agent code • Use cases • Can be coded inside the NSF, no plugin project needed • Multi-threaded tasks like Runnable, but you can return values • Bulk execution of time consuming code • very new feature (alpha)
  • 38. Xots (cont‘d) • Advantages • More granular time and event triggering than in Agents • Can run with server-side permissions • Runs in a shared container (JVM) unlikely of an Agent which runs in a dedicated JVM • you can exchange data between tasklets • It‘s coded in a plain Java class and not in an Agent design element • You can use SCM systems
  • 39. Xots (cont‘d) • Core elements of tasklet • Interface Callable<?> • Interface Future<?> • get() method to get the return value(s) • only if you are interested in a return value • Class Xots from the ODA • submit() method to create a tasklet • schedule() methods to create a periodic tasklet • use the PeriodicScheduler!
  • 41. Contribute to the ODA • Get the sources • the version on OpenNTF Stash should be the latest • https://stash.openntf.org/projects/ODA • Setup Eclipse (Luna+) • Set „Access Restrictions“ to „Warning“ • Setup Maven (install e2m plugin) • Setup Domino Build Management
  • 42. Resources • The XPages demo applications • https://bitbucket.org/zeromancer1972/sutol-2015-oda-graph-demo • A nice glossary • http://www.intec.co.uk/from-xpages-to-web-app-glossary/ • OpenNTF Domino API • http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API • http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API%20Demo%20Database • Xots • http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-one/ • http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-two/ • http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-three/ • Domino Build Management • https://www.openntf.org/main.nsf/project.xsp?r=project/IBM%20Domino%20Update%20Site%20for%20Build%20Management
  • 43. Q & A