Riena Project - EclipseCon Europe 2019 · Riena Project Christian Campo, EclipseCon 2008, March 17, 2008. ... transparent access remote services (using proxies) configurable services

© 2002 IBM Corporation

Confidential | Date | Other Information, if necessaryMarch 25, 2008 Copyright © 2008 compeople AG, Made available under the Eclipse Public License v 1.0

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Riena Project

Christian Campo, EclipseCon 2008,

March 17, 2008

Copyright © 2008 compeople AG, Made available under the Eclipse Public License v 1.0 2

Distributed

Services

OSGI

UISecurity

Object Transactions

Persistence

Authentication

Authorization

Reporting

Where do we come from ?

Status

Software Update

Copyright © 2008 compeople AG, Made available under the Eclipse Public License v 1.0

Where do we come from ?

Smart Client project in the financial / insurance sector

more than 30.000 clients, distributed server environment

3 year project, more than 150 people

based on our commercial framework „spirit“

based upon open source components (log4J, axis, hessian,

hibernate, hivemind, commons-*, junit, httpunit, jfreechat,

jgoodies, nuvola, rhino ... and many more)

Service Oriented Architecture

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Components in various Application Models

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ServerClient

Rich

Web

Smart

GUI Logik Persistence

DB Connection

HTML ,Images,JScript

Web Services


Smart Client Cornerstones

highly integrated client / server application

homogenous programming model / platform

distributed components

remote services

rich user interface

integrated local applications (mail, office, pdf)

integrated client software update

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Components in Riena

based on OSGi Services

inject services

transparent access remote services (using proxies)

configurable services (using ConfigurationAdmin)

Riena provides default implementations

replace (remove the default)

override (using Service Ranking)

can be created using Declarative Services

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Components

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JVM

Equinox (OSGi)

Config

Admin

Log

ServicePackage

Admin

Http

Service

Equinox

Authent.

Service

Permission

CacheAuthorization

Service

Subject

Holder

Exception

HandlerConfig

PluginRiena

Customer

Search

Zipcode

LookupCustomer

Store

Application

A B C


Distributed Services I

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JVM

Equinox (OSGi)

Package

Admin

JVM

Equinox (OSGi)

Log

Service

Config

AdminHttp

Service

Package

AdminLog

Service

Config

Admin

Equinox

Remote Service

Proxy

Remote Service

Endpoint

Authoriz.

ServicePermission

CacheAuthent.

Service

Authoriz.

Service

Authent.

Service

Permission

CacheRiena

Exception

Handler

ServerClient


Service Registration

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HashTable <String,String> props= new HashTable<String,String>();

props.put(“riena.remote”, ”true”);

props.put(“riena.remote.protocol”, “hessian”);

props.put(“riena.remote.path”, “/AuthorizationService”);

context.registerService(IAuthorizationService.class.getName(), new AuthServiceImpl(), props);

Server

Client

new RemoteServiceFactory()

.createProxyAndRegister(IAuthorizationService.class.getName(),

“http://172.15.26.56:8080/hessian/AuthorizationService”, “hessian”);

URLs can be configured at runtime through ConfigAdmin

using Notations like “http://${hostname}/hessian/AuthorizationService”


Distributed Services II

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JVM

Equinox (OSGi)

Package

Admin

Authoriz.

Service

JVM

Equinox (OSGi)

Log

Service

Config

Admin

Permission

Cache

Http

Service

Authent.

ServicePackage

Admin

Authoriz.

Service

Log

Service

Authent.

ServiceConfig

Admin

Permission

Cache

Equinox

Riena

Exception

Handler

Customer

SearchZipcode

Lookup

Customer

Store

Customer

Search

Customer

Store

Application

ServerClient


Service Lookup - I

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ref = context.getServiceReference(ICustomerSearch.class.getName());

if (ref != null) {

ICustomerSearch search = (ICustomerSearch) context.getService(ref);

if (search != null) {

search.findCustomer(“Bill”);

…

}

context.ungetService(ref);

}

classic

• context get for each service call

• multiple checks for null

• unget Service after use

• ServiceListener would be better, but requires even more code


Service Lookup - II

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private ICustomerSearch search;

…

public void bind(ICustomerSearch search) { this.search = search; }

public void unbind(ICustomerSearch search) { this.search = null; }

//… init code

new ServiceId(ICustomerSearch.class.getName())

.injectInto(this)[.bind(“bind”).unbind(“unbind”)].andStart(context);

}

// later

if (search != null) {

search.findCustomer(“Bill”);

}

ServiceInjector

fires existing and

changing Services


Services – replace / overwrite

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Permission

Cache

Authoriz.

Service

Replace

Permission

Store

My Perm

Store

Permission

Cache

Authoriz.

Service

Permission

Store

Overwrite (using Ranking)

RANK = -100

My

Cache

RANK = 0

Used when you always have your own. Used when the default is often good enough.

new ServiceId(IPermissionCache.class.getName()) .useRanking().injectInto(this).andStart(context);

context.getServiceReference(IPermissionCache.class.getName()) uses ranking already


Distributed Architecture

Service oriented

Riena uses services in many places

Simple for application developers

Supports multiple protocols (Hessian, SOAP, ...)

Enable other components / Eclipse projects


Security – Distributed Aspect

JAAS based (now)

equinox.security based (later)

Uses standard java objects i.e. Principal, Subject, Permission,

PolicyProvider, LoginModule

Remote Services for Authentication/Authorization

Embed authentication/session information in remote service call

Easy access to current Subject (client / server)

Remote Services are executed in the context of the Subject

(“doAsPrivileged”)

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Persistence – Distributed Aspect

Work with persistent objects on Riena client

No persistance framework on client

Track modifications in objects on the client

Send only modified properties to the server

Use ObjectTransaction

Only update modified values in database

EclipseLink, Hibernate

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Reporting – Distributed Aspects

collect data on (server)

consolidate, aggregate, group, calculate (server)

render to output format (client)

incremental load of data (client / server)

BIRT

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Software Update + more

Software Update

sync latest version to client to fit latest server version

mandatory software update

transfer deltas (diff actual client version to latest version)

userspecific software update

P2, Maynstall (already committer in P2 project)

External application integration (Office, PDF)

merge document support

show PDF

Monitoring of Client State

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one more thing …


UI – the IDE

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UI – typical RCP apps

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UI Vision

Eclipse IDE UI is great for developers

Developer != End User

Workbench Layout is very generic and flexible

too much for endusers

proposed changes

static layout

simplify navigation, different navigation tree

modulegroups and modules

no tabs for views (access views from navigation tree)

tabs to distinguish subapplications

new UI is default not mandatory !!!

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UI – Vision Riena

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Click

Click

Click

Click


UI – Vision Riena (another default)

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Status

Started in October 2007

Incubator, current version 1.0M1

We have:

Remote services

Security

Samples

JUnit Tests

Configuration

We are working:

ObjectTransaction

UI

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Thank you

Documents

Riena Project - EclipseCon Europe 2019 · Riena Project Christian Campo, EclipseCon 2008, March 17, 2008. ... transparent access remote services (using proxies) configurable services