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Grid Development Tools & Interactive Applications
北航计算机新技术研究所（ ACT ）沃天宇
2005.3.25
Content
• Background
• Interactive Application for Grid
• Grid Development Tools
Part 1 Background
Background
• Grid Research in China– 863 – CNGrid– MOE – ChinaGrid– NSFC – eScience
Network Based e-Science Environment
• CROWN– China Research Environment Over Wide-area Network
Cooperation
3 Scientific Problems
Manageability
Trust
Testbed Architecture
9 Key Technology
Service Management
Resource Sharing
Domain specificE-Science Activity
Supporting
User interface
Development
Testbed Security
Testbed Operation
Heterogeneous Resource
Encapsulation
Testbed Deployment (Stage 1)
• 5 universities and institutes• Many valuable research resources
Resource Organization & Management
Node Domain RLDS
Domain RLDS
Region Switch
Domain RLDS
Node NodeServices
Device
Device Driver Service
Other Regions
Gateway to EU DataGrid?
Gateway to Other Testbed
Middleware Architecture
Resource Service Layer
Application Supporting Layer
User Supporting Layer
Secu
rity &
System
Ad
min
istration
Develo
pm
ent
Meth
od
olo
gy
& T
oo
ls ApplicationDeveloper
PlatformAdministrator
Computation Power Storage Devices Software ……
Encapsulating
Researchers of all disciplines
High Energy Physics Bioinformatics Atmosphere ……
SharingSharing Sharing
EncapsulatingEncapsulating
CROWN Project
• CROWN Node Server
• CROWN RLDS
• CROWN Designer
• CROWN Portal
• CROWN Security & Trust (CROWN-ST)
CROWN Node Server
• Grid Service Container Middleware• Resource Encapsulation (as Services) & Monitor• Extensible / Reliable / High Performance /
Interoperable• Key technologies
– Hot deploy– Remote deploy– Resource Dynamic– Information Collecting
CROWN RLDS
• RLDS = Resource Locating and Description Service
• Functions– Topological Management– Service Information Publish & Discovery– Subscription/Notification based Dynamic Information
Collection– Extensible Resource Information Model– Advanced GIQL Query
CROWN RLDS
CROWN Designer
CROWN Portal
• Grid Application Consuming Environment
www.crown-grid.orgwww.crown.org.cn
CROWN Security & Trust (CROWN-ST)
• Communication Security– XML / SOAP Security– Secure Conversion– WS-Security / SAML / XACML
• Authentication
• Authorization (RBAC / ABAC)
• Trust Management
Part 2 Grid Development Tools
Motivation
• Grid Service Development in GT 3 / 4 (without an IDE)– Edit .java source Notepad / UltraEdit / vim / emacs– Compile javac classpath…– Generate WSDL java2wsdl / ant build.xml– Edit WSDD Notepad / UltraEdit / vim / emacs– Generate Gar file jar / ant build.xml– Deploy Copy– Service Client / Stub wsdl2java / ant– …
• WSRF ？– Resource / ResourceHome / JNDIConfig / Stub / Flatten / Binding
/ …
Requirements
• List of files required in a typical Globus project– service.wsdl– service-deploy.wsdd– jndi-config.xml– .java– security-descriptor– build.xml– …
Requirements
• Automatically (skeleton) generation / GUI• Syntax Error Checking• Development Process Control
– Write java code– Edit config files– Make gar– Deployment
• Supporting OGSA / WSRF• Extensible
Related Works• GT3IDE (Globus 2005)
– First release: May 2004– BSD license– Still under development– GT3, Will support GT4– http://gt3ide.sourceforge.net/
• Features– Automatic generation of WSDD and NS mappings– Partial generation of Java and WSDL– Java skeleton– Add a new remote method and the corresponding WSDL code is genera
ted.– “Generate + Compile Stubs” and “Build GAR” buttons
CROWN Designer
• Grid Development Environment• Eclipse Plug-in Based• Support GT4 (3.9.x) • Functions
– Service Development– Service Deployment (Remotely & Dynamically)– System Monitor & Admin (Drag & Drop deploy)
CROWN Designer
• Components– Wizards: Project / Service / Stub / Gar / …– Editors: WSDL / WSDD / JNDI / Keystore / WSPolicy /
Security-Service-Config / XACML / …– Views: CROWN Topology– Actions: Deploy
– GDEClasspath Container– Internal ant build file
CROWN Designer
Eclipse Platform
Eclipse Project
Workbench
JFace
SWT
Workspace
Platform Runtime
Debug
Team
HelpJDT
PDE
CRWON Plugins
WSDL2Java Wizard
WSDL Editor
XACML Editor
KeyStoreEditor
Java2WSDL Wizard
WSDD Editor
Grid Debug View
Grid View
Deploy Wizard
CROWN Designer
Conclusion
• Grid service development is a tough work• A development tools will
– Reduce a lot of routine work– Easy to learn and master– Promote the development and deployment
efficiency
• Eclipse is good platform to develop an IDE (IDE lathe)
Future Works
• Dev Tools– MDA Based Design & Implementation
– WSDL / Java Code Synchronization– Exception Handling– Service (Remote) Debug– Workflow Modeling– Collaboration Support– Usability (Friendly UI / Documentation /
Internationalization)
Part 3 Interactive Application for Grid
Motivation
• Job Submission vs Interaction– Job Submission
• No interference during job execution• All input to be ready at submission time • e.g. Gene Sequence Searching
– Interaction• Multiple inputs required during job execution• Input/output dependency between steps (stages)• e.g. Chess Game, VR (Visual Surgical Operation)
Motivation
• Collecting the requirement of Interactive Application– Design– Development– Deployment– Running
• Investigate the WSRF / WS-Notification based design and implementation
Related Works
• CFD Design & Visualization (GCC 2004)– Aero-crafts Aerodynamic Simulation and Optimization by Using “CFD-Gr
id” Based on Service Domain
– Hong Liu, Xin-hua Lin, Yang Qi, Xin-da Lu, and Ming-lu Li
– LNCS 3251, p. 745 ff.
Related Works
• Immersed VR - Visual Surgical Operation (Euro Data Grid)– WP10 - Biomedical applications Network requirements for grid-aware m
edical image applications
– http://www.cnaf.infn.it/~ferrari/infn-grid-wp5/task-dg/task2/mig-network.pdf
WS-Notification Based Interaction
• SOA– Stateless Service vs Stateful Resource
• OGSA– OGSI– WS-Addressing– WSRF (WSRP / WSLT / WSSG / WSBF)– WS-Notification (WS-Topic)
WS-Notification Based Interaction
• Basic Principle– Subscriber– Producer– Consumer
– Topic• Space / Tree
– Notification
WS-Notification Based Interaction
• Publisher
• Broker
Prototype - HalmaGame
• Basic Roles of Halma
Prototype - HalmaGame
• Main Problem– Game situation maintenance
• Players / Board / LastStep / History / Winner
– Get Notification when game situation changes
– HalmaGame Rule Implementation– UI
Interaction Design
Player1 Service Player2
createGame(“player1”)subscribe(tns:players)
subscribe(tns:lastStep)
notify(tns:players)
move
notify(tns:lastStep)
notify(tns:lastStep)
move
…
getGames()
joinGame
subscribe(tns:lastStep)
notify(tns:lastStep)
move
…
Players=Player1lastStep=null
Players=Player1|Player2
notify(tns:lastStep)
lastStep=Step(…)
SWT based UI
Conclusion
• Interaction is an important feature and problem of Grid application
• WSRF / WS-Notification technologies can be apply to support interaction
• UML Interaction Diagram is a good tools to modeling interactive processes
Future Works
• Real Application
• Transaction Support
• Checkpoint Save & Restore
• Security & Reliability
• Portal based Interaction
Thank you very much!
Q&A
内容简介 (1)
• 题目：网格开发工具与交互式应用
• 结合北航计算机学院计算机新技术研究所（ ACT ）在网格领域的研究工作，介绍 ACT 承担的研究项目（ CROWN ），介绍对于网格服务及网格应用的开发、部署、运行、监控等方面一些经验。
内容简介 (2)
• 重点讨论网格开发工具的需求、当前面临的一些问题及技术解决方案。讨论基于 Globus Toolkit 的开发及工具支持。介绍已经开展的一些工作及 CROWN Designer 等研发成果。
内容简介 (3)
• 讨论交互式应用的需求、开发、部署、使用过程并交流相关经验。介绍网格跳棋原形系统的一些情况。
简历
• 1997 - 2001 ：– 北航计算机系学习，获学士学位
• 2001-2005 ：– 北航计算机学院博士研究生
简历
• 2001 微软亚洲高校 .Net 程序设计大赛 ( 韩国汉城 ) 冠军
• 2002 访问微软公司西雅图总部• 2003 微软学者
研究背景
• 2001-2003: 参与 863 Web Service 中间件(WebSASE) ， 2003 年获教育部科技进步一等奖
• 2004: XLinker （轻量级 SOAP 消息中间件） XML / Web Service 安全，系统架构设计
• 2004 以来 : NSFC 网络为基础的科研活动环境试验平台 (CROWN)
研究兴趣
• Web Service 中间件技术• XML / Web Service 安全技术• Grid 服务及应用开发技术• 网格系统的可控可管体系结构及相关技术
