Build content centric apps with eclipse and nuxeo - ny java-sig november 2011

NYJavaSIGIntroducing Apricotand Nuxeo IDEBuild Content-centric applications withEclipse and NuxeoOlivier Grisel, R&D Engineer, Nuxeo,ogrisel@nuxeo.com https://twitter.com/ogrisel2011-11-16

Agenda • What Is a Content Repository? • Eclipse Apricot: Features & Beneﬁts • Apricot Modularity • The Future of Apricot • Developing with Nuxeo/Apricot • DemoNYJavaSIG 2

What Is a Content Repository?NYJavaSIG 3

What Is Content? • Everything is content! • Unstructured • Files, Images, Assets, XML, Binary streams • Structured • Schema, Metadata, Business Data, Tables • Semi-Structured • Files + Metadata, Web pages (assemblies, relations), Emails (attachments), Record ManagementNYJavaSIG 4

A Content Repository is Middleware • Between Application and Storage Subsystem • Does not replace either • Persistence Service • Stores structured and unstructured content • High-Level Abstraction • Stop caring about storage details • Focus on your domain model and its objectsNYJavaSIG 5

What a Content Repository Is Not • Not a CMS (WCM, ECM, ...) • A CMS is one application on top of a Content Repository • Not a filesystem • If all you have is a filesystem, everything looks like a file • Not an ORM • Not that granular, don’t think in SQL terms • Not just for storage • Provides Services, Domain Model / Business ModelNYJavaSIG 6

Eclipse ApricotNYJavaSIG 7

Eclipse Apricot • OSGi framework • Under the Eclipse Runtime project • Currently in the Incubation phase • Mentored by Gary Xue (Actuate) and Cédric Brun (Obeo) • Contributed by Nuxeo, from Nuxeo Core • http://www.eclipse.org/apricotNYJavaSIG 8

What Is Apricot? • Content Repository • Lightweight Web Framework • Content Automation • CMISNYJavaSIG 9

Content Repository • Content Model (Types and Schema deﬁnition) • Queries (NXQL, CMISQL, pluggable) • Versioning (pluggable) • Locking (synchronous, cluster-aware) • Access Control (groups, grant/deny, inheritance) • Proxies (shortcuts) • Events & Listeners (sync, async, async post-commit) • Audit TrailNYJavaSIG 10

Lightweight Web Framework • Build content-centric Web Applications • Expose content on the web • Fast framework based on JAX-RS • Provides FreeMarker templating (pluggable)NYJavaSIG 11

Content Automation • Based on Commands/Operations • Build reusable business logic • Accessible from UI frameworks and HTTP/JSON • 120+ operations, extendable • Chainable: reduce RPC roundtripsNYJavaSIG 12

CMIS • OASIS Content Management Interoperability Services • HTTP APIs (SOAP, AtomPub, Browser Bindings) • Java APIs (OpenCMIS) • http://docs.oasis-open.org/cmis/CMIS/v1.0/cmis- spec-v1.0.html • http://www.slideshare.net/efge/cmis-and-apache- chemistry-apachecon-2010NYJavaSIG 13

HTTP (CMIS) HTTP OpenCMIS Java OpenCMIS Automation API Native Java API Core Services VCS Binary Store SQL Backend Other Backend Filesystem SQL Database CloudNYJavaSIG 14

Batt le T este When to Use Apricot? d • Need to store Objects with Properties • And also Files • Don’t want to write SQL • But be able to fall back to SQL if really needed • Need Access Control • Need Versioning, Queries, ... • Don’t want to reinvent the wheelNYJavaSIG 15

Battle Tested? • Originates from Nuxeo Core • Used in all the Nuxeo Platform • (Document Management, Digital Asset Management, Case Management & other content-centric apps) • In production for 4 years • Thousands of deploymentsNYJavaSIG 16

Why Is Apricot Good? • Modular: OSGi & Extension Points • Fast: Caching, Optimized ACL with Stored Procs • Safe: Transactional + Hot backups • Scales: Leverage SQL clusters, Lockless pluggable binary store (FS, SQL, S3...)NYJavaSIG 17

Apricot and ModularityNYJavaSIG 18

Choosing a Modularity Framework • Java SE • No bundle life cycle, no modularity, no extension system • Java EE • All is packaged as one big application (EAR or WAR), cannot update or add a feature without recompiling the entire application • OSGi — yes, but...NYJavaSIG 19

Additions Needed to OSGi • To achieve a plugin model • Eclipse already had the answer: extension points • To provide enterprise features • No real OSGi Enterprise Framework implementations yetNYJavaSIG 20

Integrating with Java EE • Apricot should be able to run in an Application Server (as a WAR) • Java EE conﬁguration is monolithic • To declare servlets (web.xml) one must know in advance the servlets provided by all the different bundles, same for application.xml • Apricot is dynamic: bundles may be installed at runtime • Java EE components declared by bundles must be installed at runtimeNYJavaSIG 21

Java EE Features • Full OSGi integration of JAAS (authentication system) • Full JTA support through Apache Geronimo (transactions) • Full JCA support through Apache Geronimo (resource adapters and pooling) • In-memory JNDI server • Future plans to integrate the work done in the Gemini project (and also support Virgo)NYJavaSIG 22

The Future of ApricotNYJavaSIG 23

Where Are We Going? • Finish Apricot ﬁrst release • Cleanup, testing framework • Replace Nuxeo Core with Apricot • Nuxeo Core running under a full OSGi container • Bridge for non-OSGi application servers • Leverage Declarative ServicesNYJavaSIG 24

Developing Content- Centric Apps with NuxeoNYJavaSIG 25

What Is Nuxeo Studio? A Customization Environment as a Service, Studio manages for developers: • custom metadata, • custom document types and templates, • content lifecycle and workﬂows, • content views, • content automation, • application branding • and much more.NYJavaSIG 26

What Is Nuxeo IDE? An Eclipse-based Integrated Development Environment (IDE) for developers using the Nuxeo Platform / Apricot. • Hot Reload • Automated dependency management • Templates and Wizards • Integration of Nuxeo Shell • Automated dependency management • Deployment proﬁles • Code/Resource completion • Sync. with Nuxeo StudioNYJavaSIG 27

DemoNYJavaSIG 28

Thank You! • http://www.eclipse.org/apricot • http://github.com/nuxeo/org.eclipse.ecr • http://www.slideshare.net/efge/cmis-and-apache- chemistry-apachecon-2010 • http://docs.oasis-open.org/cmis/CMIS/v1.0/cmis- spec-v1.0.html Contact:ogrisel@nuxeo.com https://twitter.com/ogriselNYJavaSIG 29

Additional Information & Links • http://www.eclipse.org/apricot • http://github.com/nuxeo/org.eclipse.ecr • http://www.slideshare.net/efge/cmis-and-apache- chemistry-apachecon-2010 • http://docs.oasis-open.org/cmis/CMIS/v1.0/cmis- spec-v1.0.htmlNYJavaSIG 30

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