Eldas 1.0 Enterprise Level Data Access Services

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Eldas 1.0Enterprise Level Data Access Services

• Design Issues, Implementation and Future
  Development
• Stephen Rutherford

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Contents

1. Introduction
2. Design Issues and Considerations
3. Current Eldas Implementation
4. Future Eldas Functionality
5. Summary and Contacts
6. Demonstration

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Introduction Motivation

• DAIS-WG
• Grid Data Service Specification
• Data relational dbs XML dbs file systems

Source 1
Service 1
Client 1
API Interactions
Service 2
Source 2
Service Creation
SOAP / HTTP
Client 2
Factory
Client 3
Source 3
Service 3
Client n
Service n
Source n
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Introduction Standards

• Web Services
• Industry standards
• OGSI/OGSA
• Grid Service enabled using GT3
• WSRF
• Replacement for GT3

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Introduction 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

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Introduction User View

• Simplified non Grid-specific user view

Eldas Server
API Interactions
SOAP / HTTP
Client 1
Source 1
Client 2
Source 2
Source 3
Client 3
Source n
Client n
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Design Issues and Considerations

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

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Current Eldas Implementation

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

Tooling/Client Effort
Extensive Testing
Modular Design
J2EE
Tiered Architecture
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Current Easy to Use

• Download www.edikt.org/eldas
• Unpack
• Deploy and configure
• Run

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Current J2EE

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

Presentation Layer JSP/ Servlets
Data Layer Typically RDBMS
Application or Business Layer Beans, EJBs
(Web Container)
(EJB Container)
(External Data)
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Current Interface Independent

• Presentation layer
• Web Services
• Grid Services
• OGSA or WSRF
• Other interfaces

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Current Data Access

• Eldas 1.0
• MySQL
• Modular Design
• easy extension
• e.g. DB2, SQLServer tried not tested

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Current Clients

• Command Line Interfaces
• Grid Services
• Bulk and Streaming
• Web Services
• Graphical Query Tool
• Grid Services, Bulk and Streaming

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Summary Current

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

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Future Eldas Functionality

• Data Resources
• DB2, SQLServer, Flat and Binary Files
• Application Servers
• WebSphere, SunOne, JBoss 3.2.2
• Security
• GSI Message Level Security
• HTTPS
• Data Transport
• Joins
• Stored Database Procedures
• Stateful Web Services
• WSRF

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Summary Contacts

• Website www.edikt.org/eldas
• Eldas 1.0 available for download
• Support support_at_edikt.org

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Demonstration 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

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Demonstration Server

• Deploy Server

Run UnpackEldasServer.jar
Select unpack folder

• unpack

Run EldasServer.jar
Identify GT3 distribution
Identify JBoss distribution

• deploy

Enter db name
Identify MySQL driver
Enter db server IP
Enter db server port

• configure

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Demonstration Clients

• Install clients

Run UnpackEldasClients.jar
Select unpack folder

• unpack

Select install folder
Run EldasClients.jar
Identify GT3 distribution

• install

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Demonstration Client - DB

• local client remote db
• via local server
• via remote server

Laptop Eldas Client
SOAP / HTTP
Laptop Eldas Server
Sanchez Eldas Server
Sanchez Example MySQL Database
JDBC
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Demonstration Client - DB

• local client remote db
• via local server
• via remote server