www.edikt.org eldas 1.0 enterprise level data access services design issues, implementation and...

www.edikt.orgwww.edikt.org

Eldas 1.0Eldas 1.0Enterprise Level Data Access Enterprise Level Data Access

ServicesServices

Design Issues, Implementation and Future Development

Davy Virdee

2


ContentsContents

1. Introduction

2. Design Issues and Considerations

3. Current Eldas Implementation

4. Future Eldas Functionality

5. Summary and Contacts

3


Introduction: MotivationIntroduction: Motivation

DAIS-WG– Grid Data Service Specification– Data: relational dbs; XML dbs; file systems

Service CreationSOAP /

HTTP

Source 1

Factory

Client 1

Client 2

Client 3

Client n

Service 1

Service n

Service 2

Service 3

Source 2

Source 3

Source n

API Interactions

4


Introduction: StandardsIntroduction: Standards

Web Services– Industry standards

OGSI/OGSA– Grid Service enabled using GT3

WSRF– Replacement for GT3

5


Introduction: Web vs Grid ServicesIntroduction: Web vs Grid Services

Web Services– services exposed via platform and language

independent interfaces– interface described using WSDL– communication via SOAP/HTTP

Grid Services– Web Services plus identity, state and lifetime

6


Eldas Server

Introduction: User ViewIntroduction: User View

Simplified non Grid-specific user view

API Interactions

Source 1Client 1

Client 2

Client 3

Client n

Source 2

Source 3

Source n

SOAP / HTTP

7


Design Issues and ConsiderationsDesign Issues and Considerations

For user adoption of Eldas– Ease of Use– Robustness– Extensibility– Multiple Data Access– Machine Independence– Interface Independence

8


Current Eldas ImplementationCurrent Eldas Implementation

Eldas 1.0– Easy to Use– Robust– Extensible– Multiple Data Access– Machine Independent– Interface Independent

Tooling/Client EffortExtensive TestingModular DesignJ2EETiered Architecture

9


Current: Easy to UseCurrent: Easy to Use

Download www.edikt.org/eldas Unpack

Deploy and configure

Run

10


Current: J2EECurrent: J2EE

J2EE technologies facilitates– Robust software (uses EJBs)– Extensible designs– Machine Independence

PresentationLayer

JSP/ Servlets

Data Layer

Typically RDBMS

Application or Business

Layer

Beans, EJBs

(Web Container) (EJB Container) (External Data)

11


Current: Interface IndependentCurrent: Interface Independent

Presentation layer– Web Services– Grid Services

OGSA or WSRF

– Other interfaces

Eldas Server Eldas Core

Web Services

Client

Data Source

Web Services

OGSA Grid Services

WSRF Grid Services

Other Interface

Other Client

Data Source

Data Source

Grid Services

ClientGrid

Services Client

12


Current: Data AccessCurrent: Data Access

Eldas 1.0– MySQL

Modular Design– easy extension– e.g. DB2, SQLServer

13


Current: ClientsCurrent: Clients

Command Line Interfaces– Grid Services

Bulk and Streaming

– Web Services

Graphical Query Tool– Grid Services, Bulk

and Streaming

14


Summary: CurrentSummary: Current

Eldas 1.0 Implementation– Easy to Use– Robust and Extensible– Machine and Interface Independent– Multiple Data Access– Multiple Clients

15


Future Eldas FunctionalityFuture Eldas Functionality

Data Resources– MySQL, DB2, Oracle, Postgres, SQLServer – Flat files, Binary (using BinX)

Application Servers– JBoss, WebSphere,

Security– GSI Message Level Security – HTTPS

Data Transport Joins Stored Database Procedures Stateful Web Services WSRF

16


Summary: ContactsSummary: Contacts

Website: www.edikt.org/eldas– Eldas 1.0 available for download– Eldas 1.1 available Autumn 2004– Eldas 2.0 (WSRF) Early 2005

Support: [email protected]

17


Demonstration: PrerequisitesDemonstration: Prerequisites

Java 1.4.2 JRE– Download and install

Globus Toolkit 3.0.2– Download and unpack

JBoss 3.2.2 Application Server– Download and unpack

MySQL 3.0.8 Database Driver– Download

18


Demonstration: ServerDemonstration: Server

Deploy Server

unpack

deploy

configure

Run UnpackEldasServer.jarSelect unpack folder

Run EldasServer.jarIdentify GT3 distributionIdentify JBoss distribution

Enter db nameIdentify MySQL driverEnter db server IPEnter db server port

19


Demonstration: ClientsDemonstration: Clients

Install clients

unpack

install

Run UnpackEldasClients.jarSelect unpack folder

Run EldasClients.jarIdentify GT3 distributionSelect install folder

20


Demonstration: Client - DBDemonstration: Client - DB

local client – remote db– via local server– via remote server

JDBC

SOAP / HTTP

Sanchez Example MySQL

Database

Laptop Eldas Client

Laptop Eldas Server

Sanchez Eldas Server

21


Demonstration: Client - DBDemonstration: Client - DB

local client – remote db– via local server– via remote server

www.edikt.org eldas 1.0 enterprise level data access services design issues, implementation and...

Documents

data access eldas

streaming slide

sqlserver slide

gt3 slide

client n source

lifetime slide

run slide

download eldas