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Industry-Wide System Management Standard

Bernd Sint

Seminar Grid Computing II

WS 2006/07

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Introduction

Source Merge of Grid and Web [9]

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Contents

WSRF and WS-Notification

WS-Transfer and WS-Eventing

WSRF / WS-N vs. WS-T / WS-E

Outlook - The New Standard

WS-RT Demonstration

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A typical Web Service

Source: A stateless Web Service invocation [1]

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Web Service - stateless

Source: A stateless Web Service invocation [1]

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Web Service - statefull

Source: A stateful Web Service invocation [1]

7 WS + Resource = WS-Resource

Source: A WS-Resource [1]

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WSRF specifications

WS-ResourceProperties

WS-ResourceLifetime

WS-ServiceGroup

WS-BaseFaults

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Related specifications

WS-Notification Allows Web Service to be configured as a

Notification Producer, and certain client to be Notification Consumers

WS-AddressingProvides a mechanism to address Web

Service Resource: Web Service + Resource as Endpoint Reference

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WS-Notification

Source: http://www-128.ibm.com/developerworks/xml/library/ws-soa-enter8/

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WS-Transfer

XML-based representations of entities using the Web Service infrastructureResources, which are entities

addressable by an EPRResource factories, which are WS

that can create a new resource 4 operations: Create, Delete, Get and

Put

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WS-Eventing

Source: http://www.codeproject.com/useritems/WSEventing.asp

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Comparison

WSRF is more complex

WSRF has no „Create“ functionality

WS-Eventing has not so much functionality

WS-Eventing can only subscribe to Web Services

14 Comparison „Hello World“ with no security

Source:Testing „Hello World“ with no security [4]

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„The“ new Standard

HP, IBM, Intel and Microsoft announced on March 15, 2006 their plans to develop a

COMMON SET OF WS

SPECIFICATIONS FOR RESOURCES,

EVENTS AND MANAGEMENT

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Why these four vendors?

17 Resource- / Information Management

Source:Toward Converging Web … [3}

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Eventing and Notification

Source:Toward Converging Web … [3}

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Web Services Management

Source:Toward Converging Web … [3}

20 WS-ResourceTransfer Demo

Specification – August 2006:

http://www-128.ibm.com/developerworks/library/specification/ws-wsrt/

Implementation by Mohammad N. Fakhar, IBM – 31 August, 2006:

http://marc2.theaimsgroup.com/?l=muse-dev&m=115705382714837&w=2

http://wsi.alphaworks.ibm.com/wsrt/

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Summary

Common goal to build an industry-wide system management standard

Should be finished within the next 12-18 months

Will build the new de-facto standard The need for well understandable

standardized specifications, because …

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WS-*

WS-Addressing WS-PolicyAttachment WS-MetadataExchange WS-Resource Framework WS-Notification WS-Inspection WS-Security WS-SecureConversation WS-Trust WS-ResourceTransfer WS-TransferAddendum WS-Enumeration

WS-ReliableMessaging WS-Reliability WS-Coordination WS-Transaction WS-AtomicTransaction WS-BuisnessActivity WS-Routing WS-Federation WS-Eventing WS-EventingNotification ……. WHAT WILL COME

NEXT?