Enterprise Development With Apache Karaf Provides OSGi-Service. Cellar - Web session failover...

Enterprise Developmentwith

What needs to be done to run JEE like applications inside Karaf?

2014-10-233

@anierbeck- Karaf PMC, Apache Member - OPS4j Pax Web Project Lead

- Senior IT Consultant @codecentric

- co-Author of Apache Karaf Cookbook

Agenda

Enterprise Requirements OSGi with Karaf Enterprise Requirements on Karaf Specialties Http Service Cellar - or how to cluster Karaf Summary

2014-10-234

Enterprise Requirements

Enterprise Java

2014-10-236

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDI

JAX-RPC

SAAJ

OSGi with Karaf

OSGi - a very brief introduction

Modular

OSGi Bundles:

High Cohesion (One classloader/bundle)

Low Coupling (Package Import/Export)

Versioning per bundle ( [1.0,2,0) )

Service Registry

2014-10-238

What is Karaf

Container

OSGi Applications

Ligthtweight

expandable to Full Enterprise support

Covers all major needs

Logging

Deployment

Configuration

2014-10-239

Karaf - Overview

2014-10-2310

Console Admin

OSGi Framework - Felix / Equinox

Logging DeployerConfig

JMX

SSHBlueprint

Enterprise requirements on Karaf

Karaf

2014-10-2312

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDI

JAX-RPC

SAAJ

Enterprise - Pax Web

2014-10-2313

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDI

JAX-RPC

SAAJ

Enterprise - Pax CDI

2014-10-2314

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDI

JAX-RPC

SAAJ

Enterprise - Aries

2014-10-2315

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDI

JAX-RPC

SAAJ

Enterprise - Tomee aka OpenEJB

2014-10-2316

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS

JAX-RPC

JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDISAAJ

Enterprise - CXF

2014-10-2317

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS

JAX-RPC

JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDISAAJ

Enterprise - ActiveMQ

2014-10-2318

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS

JAX-RPC

JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDISAAJ

Enterprise - Cellar

2014-10-2319

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS

JAX-RPC

JAX-RS

JAXR

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDISAAJ

Enterprise - Karaf with features

2014-10-2320

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

Bean Validation

JAX-WS

JAX-RPC

JAX-RS

JAXR

SAAJ

JAXB

JMS

JAAS

JASPIC

JACC

JSR-88

JCA

JavaMail

JSR-77

RMI

JNDI

Specialties

JPA - Karaf

2014-10-2322

org.apache.openjpa.persistence.PersistenceProviderImpl osgi:service/javax.sql.DataSource/(osgi.jndi.service.name=jdbc/cookbook) de.nierbeck.apachecon.persistence.entity.Book de.nierbeck.apachecon.persistence.entity.Recipe true

JPA - Karaf

2014-10-2322

org.apache.openjpa.persistence.PersistenceProviderImpl osgi:service/javax.sql.DataSource/(osgi.jndi.service.name=jdbc/cookbook) de.nierbeck.apachecon.persistence.entity.Book de.nierbeck.apachecon.persistence.entity.Recipe true

To have this blueprint JNDI is needed

JTA - Karaf

2014-10-2323

Client - Karaf

2014-10-2324

...

Persistence

2014-10-2326

Client

2014-10-2327

Client Shell

2014-10-2328

Client - Shell

2014-10-2329

Client Shell

2014-10-2330

Client - Shell

2014-10-2331

Http Service with

HTTP Service

2014-10-2333

Using an Activator: final HttpContext httpContext = httpService

.createDefaultHttpContext();// register the BookServlet

// first wait for the DAO-ServiceCookBookService cookBookService;ServiceReference serviceReference = bundleContext

.getServiceReference(CookBookService.class);cookBookService = bundleContext.getService(serviceReference);

//now create the servletViewBookServlet viewBookServlet = new ViewBookServlet();

//set the DAO to the ServletviewBookServlet.setCookBookService(cookBookService);

final Dictionary initParams = new Hashtable();try {

httpService.registerServlet("/book", // aliasviewBookServlet,initParams, httpContext);

Whiteboard

2014-10-2334

Using the whiteboard approach via Activatorpublic void start(BundleContext bc) throws Exception {

bundleContext = bc;

// first wait for the DAO-ServiceCookBookService cookBookService;ServiceReference serviceReference = bundleContext

.getServiceReference(CookBookService.class);cookBookService = bundleContext.getService(serviceReference);

// create new ServletViewBookServlet cookBookViewServlet = new ViewBookServlet();cookBookViewServlet.setCookBookService(cookBookService);

registerServiced = bundleContext.registerService(Servlet.class,cookBookViewServlet, null);

}

Whiteboard

2014-10-2335

Using the whiteboard approach via Blueprint

Servlet 3.0 - Just annotation

2014-10-2336

@WebServlet(urlPatterns = "/book")public class ViewBookServlet extends HttpServlet {

/** * */private static final long serialVersionUID = 1L;

@[email protected] cookBookService;

@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp)

throws ServletException, IOException { ...

}}

Registering - Servlet

2014-10-2338

Pax-Web HTTP Service

Service-Registry

Servlet


2014-10-2338


Service-Registry

Servlet

Registerd


2014-10-2338


Service-Registry

ServletRegisterd

Registerd

Registering - Whiteboard

2014-10-2339

Pax-Web WebContainer

Service-Tracker

Service-Registry

Servlet


2014-10-2339


Service-Tracker

Service-Registry

Servlet

Registerd


2014-10-2339


Service-Tracker

Service-Registry

Servlet

Registerd

Registerd

Registering - WAR

2014-10-2340


Pax-Web WAR Extender

Service-Registry

WAB-Bundle

Servlet

Registering - WAR

2014-10-2340



Service-Registry

WAB-Bundle

Servlet

Registerd

Registering - WAR

2014-10-2340



Service-Registry

WAB-Bundle

Servlet

RegisterdRegisterd

Servlet + JPA / Service

2014-10-2341

Blueprint Extender


JPA-Bundle

Service-Registry

JPA - Service

WEB-Bundle

Servlet


2014-10-2341

Blueprint Extender


JPA-Bundle

Service-Registry

JPA - Service

WEB-Bundle

Servlet

Registerd


2014-10-2341

Blueprint Extender


JPA-Bundle

Service-Registry

JPA - Service

WEB-Bundle

Servlet

Registerd

Injected


2014-10-2341

Blueprint Extender


JPA-Bundle

Service-Registry

JPA - Service

WEB-Bundle

Servlet

RegisterdRegisterd

Injected

View

2014-10-2343

View

2014-10-2344

Cluster provided by Apache Karaf Cellar

Cellar - Cluster Communication

2014-10-2346

Cellar - Cluster Communication

2014-10-2347

Hazelcast

Cellar - Events

2014-10-2348

Cellar - Distributing Bundles

2014-10-2349

Node A

Node B

Node C

Maven Repository

Hazelcast


2014-10-2349

Node A

Node B

Node C

Maven Repository

osgi:install mvn:groupId/artifactId/version

Hazelcast


2014-10-2349

Node A

Node B

Node C

Maven Repository

Hazelcast


2014-10-2349

Node A

Node B

Node C

Maven Repository

Hazelcast

DEPRECATED


2014-10-2349

Node A

Node B

Node C

Maven Repository

Hazelcast

DEPRECATED

cluster:install mvn:groupId/artifactId/version

Cellar - RMI

2014-10-2350

Group 1

Node A Consumes OSGi-Service

Group 2

Node B Consumes OSGi-Service

Node C Consumes OSGi-Service

Node A Provides OSGi-Service

Node B Provides OSGi-ServiceHazelcast

Cellar - Web session failover

2014-10-2351

Node A

Hazelcast

DataBase

Client

ServletFilter

Node B

ServletFilter

Cluster - Demo

Presentation Layer

2014-10-2353

web.xml - Hazelcast

2014-10-2354

Hazelcast for Session Replication

hazelcast-filtercom.hazelcast.web.WebFilter

map-namemy-sessions

sticky-sessionfalse

hazelcast-filter/*FORWARDINCLUDEREQUEST

com.hazelcast.web.SessionListener

View

2014-10-2355

View

2014-10-2356

View

2014-10-2357

SUMMARY

Enterprise - Karaf

2014-10-2359

Servlet 3

JSF 2

JSP

JPA 2

JTA

CDIEJB 3.1

JAX-WS

JAX-RPC

JAX-RS

JAXR

SAAJ

JAXB

JMS

JAAS RMIJNDI

JEE with Karaf?

Adoptions needed? YES

Minor on Persistence - JNDI lookup

Minor on transaction - Blueprint JTA

Wiring of Services:

Use Blueprint

Use Servlet 3.0 with CDI - @OsgiService

Session Replication throughout cluster, its still standard Hazelcast

2014-10-2360

Resources

@anierbeck

notitzblog.nierbeck.de

https://github.com/ANierbeck/karaf-enterprise-sample

www.codecentric.de

karaf.apache.org

https://ops4j1.jira.com/wiki/display/paxweb/Pax+Web

#karaf at irc.codehaus.org

https://www.packtpub.com/application-development/apache-karaf-cookbook

Pictures, mainly from flickr

2014-10-2361

http://notitzblog.nierbeck.dehttps://github.com/ANierbeck/karaf-enterprise-samplehttp://www.codecentric.dehttp://karaf.apache.orghttps://ops4j1.jira.com/wiki/display/paxweb/Pax+Webhttp://irc.codehaus.orghttps://www.packtpub.com/application-development/apache-karaf-cookbook

THANKS FOR LISTENING

Thanks to the Apache Community

Questions

Thanks

Date post:	22-Jun-2018
Category:	Documents
Author:	trannguyet
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Enterprise Development With Apache Karaf Provides OSGi-Service. Cellar - Web session failover...

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