WebSphere MQ Transport for SOAP

®
IBM Software Group
WebSphere MQ Transport for SOAP
© 2005 IBM Corporation
IBM Software Group | WebSphere software
What is SOAP
Lightweight XML based messaging protocol
Used to encode Web Service requests/responses
Transported over HTTP, SMTP etc and now WMQ
Provides a way for applications to communicate
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IBM Software Group | WebSphere software
Interfaces
SOAP
enabled
client
HTTP
appli SOAP
client layer
HTTP
server
HTTP
transport
WMQ
sender
WMQ
WMQ
listener
SOAP
layer
service
(appli
server)
SOAP
deployed
service
WMQ v6 fournit l’infrastructure pour
supporter la transmission de SOAP par MQ
Couches SOAP client et server
interchangeables
Mise à jour et intégration du SupportPac
MA0R
Changement nécessaire à l’URI :
jms:qname
Support Sender et Listener pour les
environnements
Axis (c-à-d Apache)
Au niveau d’administration, pas code !
Scripts fournis pour faciliter le
déploiement
.NET (c-à-d Microsoft)
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WMQ/SOAP
Replace HTTP etc with WMQ/SOAP
Existing client applications require minimum change
Use jms:/queue instead of http://
WMQ details in the URL (Qmgr, request queue etc)
Service code unchanged
WMQ listener invokes service and gets response
May run in a transaction
SOAP message encoding/decoding provided by Axis/.NET
Axis information at ws.apache.org/axis
.NET information at www.microsoft.com
Senders/Listeners for Apache Axis and Microsoft .NET
Simple deploy utility for deploying Web Services
Heterogeneous operation
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Avantages
Transport fiable. Avec MQ, les messages arrivent, une fois assurée.
Compression ainsi que cryptage/certification SSL possible avec MQ
Haute disponibilité et « scalabilité » sont assurés par MQ Cluster et/ou
Shared Queues (z/OS)
Transactionalité (2PC) assuré (eg. MQ, RRS)
Le changement de transport se fait au niveau d’administration ; pas de
développement
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Deployment
WMQ provides a simple deploy utility (users can write their own)
Service code (.java file for Axis, .Asmx file for .NET) is starting point.
Executed in directory where service resides (root directory in case of a
Java service)
WMQ utility executes the following steps to deploy a service
Compile service code (Java only)
Generate WSDL
Generate server side wsdd (Java only)
Set up WMQ bits (queues, listener scripts etc)
Generates proxies for use by client (.NET and/or Axis)
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Restrictions
No one-way messaging
No support for SOAP attachments
Synchronous messaging only in WMQ 6.0
Asynchronous operation provided by Cat 2 supportPac (MA0V)
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