JSR 170: The Key to Unlocking Content Repositories Originally presented at the XML 2006 Conference by: Joel Amoussou, CEO, Efasoft [email_address]

JSR 170 Design Goal “ The API should be a standard, implementation independent, way to access content bi-directionally on a granular level within a content repository.” http://www.jcp.org/en/jsr/detail?id=170

The JDBC of Content Repositories RDBMS Content Repositories Analogy Infrastructure & Consolidation Relational SQL JDBC Hierarchical XPath 2.0 JSR 170

The Airline Industry Use Case Airline Tech Pubs Portal Airframe Manufacturer RDBMS Engine Manufacturer Native XML DB Component Manufacturer File System JSR 170 JSR 170 JSR 170 JSR 170

The Airline Industry Use Case (cont’d)‏ Airline Tech Pubs Portal Airframe Manufacturer RDBMS Engine Manufacturer Native XML DB Component Manufacturer Object DB JSR 170 JSR 170 JSR 170 JSR 170 NEW No rewrite!

Enterprise Repository Product Lifecycle Management (PLM)‏ My Customers Content Repositories Learning Management System (LMS)‏ Enterprise Resource Planning (ERP)‏ Enterprise Portals Customer Relationship Management (CRM)‏ MyRepo

Interoperable Enterprise CMS Cross-Repository Integration Library Services Observation Exchange Aggre- gation

Features WebDAV, RMI, SOAP Open Source Jackrabbit/TCK/Eclipse Hierarchical model (workspace, nodes, and properties)‏ Plug-and-Play Compliant Repository Independent of Persistence Storage Standardized Content Repository API JSR 170

Repository Model Description DescriptiveDataModule <dm> … </dm> Illustration Root Procedure Node Property Content Date Content <dm> … </dm> Content 2006-12-06 Creator “ X-Airways” ProceduralDataModule

JSR 170 Code Snippet InitialContext ctx = ... Repository repository = (Repository)ctx.lookup(&quot;s1000drepo&quot;); Credentials credentials = new SimpleCredentials(&quot;username&quot;, &quot;password&quot;.toCharArray()); Session mySession = repository.login(credentials, &quot;S1000DWorkspace&quot;); Node root = mySession.getRootNode(); Node illustration = root.getNode(&quot;Description/Illustration&quot;); Property dateProperty = illustration.getProperty(&quot;Date&quot;); Value dateValue = dateProperty.getValue(); date creationDate = dateValue.getDate(); Node procedure = (Node) mySession.getItem(&quot;/Procedure&quot;); Node proceduralDM = procedure.addNode(&quot;ProceduralDataModule&quot;); proceduralDM.setProperty(&quot;Creator&quot;, &quot;X-Airways&quot;); mySession.save();

InitialContext ctx = ...

Repository repository = (Repository)ctx.lookup(&quot;s1000drepo&quot;);

Credentials credentials = new SimpleCredentials(&quot;username&quot;, &quot;password&quot;.toCharArray());

Session mySession = repository.login(credentials, &quot;S1000DWorkspace&quot;);

Node root = mySession.getRootNode();

Node illustration = root.getNode(&quot;Description/Illustration&quot;);

Property dateProperty = illustration.getProperty(&quot;Date&quot;);

Value dateValue = dateProperty.getValue();

date creationDate = dateValue.getDate();

Node procedure = (Node) mySession.getItem(&quot;/Procedure&quot;);

Node proceduralDM = procedure.addNode(&quot;ProceduralDataModule&quot;);

proceduralDM.setProperty(&quot;Creator&quot;, &quot;X-Airways&quot;);

mySession.save();

JSR 170 Level 1 Credit: Apache Jackrabbit Level1 Read only Simple & Covers a large number of usecases Structured Strong typed information Hierarchical Parent child relationships, Sort order PropertyTypes String, Binary, Numbers, Calendar, ... NodeTypes Introspect complex Content Structures Query (XPath)‏ Search and query the Repository Export Standardized XML Content Export Fine & Coarsegrained Content Items Small to Large

JSR 170 Level 2 Credit: Apache Jackrabbit Write Save changes to a repository Unstructured Support for weakly or unstructured Content Import Standardized Finegrained Content Import Referencial Integrity Reference Tracking and Integrity AccessControl Introspection Level 2

Optional Features Credit: Apache Jackrabbit Versioning Workspaces, Merge, Update, Label, ... JTA Support (XA) Transactions Observation Monitor changes in the Repository Query (SQL)‏ Search the Content Repeository using SQL Locking Session based and persistant

Apache Sling and Chemistry Sling REST access to Jackrabbit Server-side Javascript OSGi Chemistry CMIS on top of Jackrabbit SOAP binding AtomPub binding

Sling

REST access to Jackrabbit

Server-side Javascript

OSGi

Chemistry

CMIS on top of Jackrabbit

SOAP binding

AtomPub binding

JSR 283 1 Node & Property Shareable nodes Content modeling Metadata 2 Misc Retention & hold Access control Journaled observ. Workspace mgt 3 Query Extension for SQL Prepared queries

Node & Property

Shareable nodes

Content modeling

Metadata

Misc

Retention & hold

Access control

Journaled observ.

Workspace mgt

Query

Extension for SQL

Prepared queries

Thank You ! [email_address]