Binary

title

Web Services Basics For Non-programmers

author

Pete George (NobleProg Ltd)

Day Two Schedule ⌘

1. WSDL
2. Handling Binary Content
3. RESTfull Web Services
4. Other Technologies
5. Conclusion

Handling Binary Content ⌘

Learning Objectives

• To understand the need for sending binary data to and from Web services
• To be aware of the Message Transmission Optimization Mechanism

SOAP Messaging ⌘

Parse Whole Message ⌘

Binary Content is the Answer ⌘

Binary Content is the Problem! ⌘

Base64Binary ⌘

• Base64 Encoding scheme
• Encoding bits into legal characters
• For relatively small content
• Included in many SOAP toolkits

WS-Attachment ⌘

• Large payloads/binary data as an attachment
• Stopped work on it 2004

MTOM ⌘

• Message Transmission Optimization Mechanism
• Method for Web services to exchange binary data
• Replaced WS-Attachment
• W3C Recommendation

MTOM Specification ⌘

Defines MTOM as three features:

• Abstract SOAP Transmission Optimization Feature

-Defines exchanging of SOAP messages that contain binary data

• Optimized MIME Multipart/Related Serialization of SOAP Messages

-XML-binary Optimized Packaging (XOP) in place of the binary data

-Binary data represented in a MIME container

• HTTP SOAP Transmission Optimization Feature

-Defines that MIME + XOP SOAP message sent over HTTP

Quiz – No Prizes! No Pressure! ⌘