Fast SOA : The Way to Use Native XML Technology to Achieve Service Oriented Architecture Governance, Scalability, and Performance

by Cohen

• ISBN13: 9780123695130
• ISBN10: 0123695139
• Format: Paperback
• Copyright: 2006-11-17
• Publisher: Elsevier Science

Summary

Without the right controls to govern SOA development, the right set of tools to build SOA, and the right support of exciting new protocols and patterns, your SOA efforts can result in software that delivers only 1.5 transactions per second (TPS) on expensive modern servers. This is a disaster enterprises, organizations, or institutions avoid by using Frank Cohen's FastSOA patterns, test methodology, and architecture. In FastSOA you will learn how to apply native XML technology to SOA for: Data mediation using mid-tier data and service caching to handle the explosion of new schemas and new devices in an ever changing environment Data aggregation in the SOA middle-tier for off-line browsing, service acceleration through mid-tier caching and transformation, and bandwidth-needs reduction Increased service and application scalability and performance Successful evaluations of application server, XML parser, relational and native XML database, Enterprise Service Bus, Business Integration server, workflow server, and Web Service tools for performance, scalability, and developer productivity Improved service governance through XML persistence in SOA registries and repositories Composite data services (CDS) to provide maximum reuse of software components and data, accelerate performance, and reduce development time and maintenance in your SOA About the author Frank Cohen is the "go to" guy when enterprises need to build, test, and solve performance and scalability problems in complex interoperating information systems. Frank's articles appear on IBM developerWorks, and he is author of Java Testing and Design: From Unit Tests to Automated Web Tests. He is the principal maintainer of the popular TestMaker open-source test utility and framework, and Director of Solutions Engineering at Raining Data, publisher of the TigerLogic XQuery engine and native XML database. In FastSOA you will learn how to apply native XML technology to SOA for: Data mediation using mid-tier data and service caching to handle the explosion of new schemas and new devices in an ever changing environment Data aggregation in the SOA middle-tier for off-line browsing, service acceleration through mid-tier caching and transformation, and bandwidth-needs reduction Increased service and application scalability and performance Successful evaluations of application server, XML parser, relational and native XML database, Enterprise Service Bus, Business Integration server, workflow server, and Web Service tools for performance, scalability, and developer productivity Improved service governance through XML persistence in SOA registries and repositories Composite data services (CDS) to provide maximum reuse of software components and data, accelerate performance, and reduce development time and maintenance in your SOA

Author Biography

Frank Cohen is the principal maintainer of the popular TestMaker open-source test utility and framework, and Director of Solutions Engineering at Raining Data, publisher of the TigerLogic XQuery engine and native XM

Table of Contents

Introduction	p. xv
Acknowledgments	p. xvii
The Problem with Service-Oriented Architecture	p. 1
What Drives a Business to SOA?	p. 3
Software Developers Like Mashups	p. 6
Architects Need a Flexible and Fast Data Model	p. 8
CIOs Need Control	p. 9
SOA Benefits in an Enterprise	p. 10
Make Existing Data More Useful	p. 10
Software Maintenance Gets Easier	p. 11
SOA Enables a Service Marketplace	p. 12
SOA Building Blocks	p. 12
Contrasting SOA with Web Services	p. 13
Workflow and Documents for SOA Scalability	p. 14
The Problem with Workflow Containers	p. 18
SOA Service Mediation	p. 20
Intermediaries and Transformation	p. 20
Aggregators, Orchestration, and Federation	p. 22
Security	p. 22
Can I Build SOA with My Existing Tools?	p. 23
There Is No Gatekeeper for XML Schemas	p. 25
Your Choice of XML Tools Impacts Performance	p. 26
Criteria for Applying Database Technology for SOA	p. 27
Flexibility or Performance	p. 32
While You Can, You May Not Want To	p. 33
Data in the Service-Oriented Architecture	p. 34
The Dark Side of SOA	p. 37
The SOA Checklist	p. 39
Summary	p. 39
Managing the XML Explosion	p. 41
A Love Affair with XML	p. 41
XML Impact on Data	p. 45
Master Data Management and XML	p. 48
XML and the Nature of Software Developers	p. 51
Why XML in SOA Makes Sense	p. 55
What XML Is Not:A Language for Semantics	p. 56
XML Benefits in a Service World	p. 60
Mid-Tier Persistence	p. 61
Multiple Schema Support	p. 62
Federated Service Requests	p. 63
Summary	p. 63
Understanding SOA Patterns	p. 65
SOA Players	p. 65
Actions: Publish, Discover, Bind, and Execute	p. 66
Messaging and Message Exchange Patterns	p. 67
Three Popular Message Exchange Patterns	p. 72
Summary	p. 74
Identifying And Avoiding SOA Performance Problems	p. 75
Patterns and Experiences That Led to FastSOA	p. 75
Use SOAP Document-literal Encoding-Avoid SOAP RPC Encoding	p. 76
Use XML Tools to Build XML Services-Java App Server Tools Handle XML Data Poorly	p. 80
Mitigate Performance Problems with the FastSOA Architecture	p. 84
Use Unencoded XML Elements with Strings-Avoid JAX-RPC SOAPElement	p. 86
Use the XML Parser That Is Appropriate to Your Data	p. 91
Use a Database That Is Tuned to Your Data Definition-Native XML Databases Help Relational Databases	p. 92
Understanding the FastSOA Pattern	p. 94
Mid-Tier Cache Pattern and Example	p. 95
Patterns That Accelerate SOA Performance	p. 97
Summary	p. 100
Solve Performance Problems with FastSOA Patterns	p. 103
Three Use Cases and the FastSOA Pattern	p. 103
Scenario 1: Accelerating Service Interface Performance and Scalability	p. 105
Scenario 2: Improving SOA Performance to Access Services	p. 113
Scenario 3: Flexibility Needed for Semantic Web, Service Orchestration, and Services Dynamically Calling Other Services	p. 116
Summary	p. 118
The PushToTest Method to Identify SOA Scalability and Performance Metrics	p. 119
The Method to Identify SOA Performance Metrics	p. 119
An SOA Industry Supporting the PushToTest Methodology	p. 120
User Goal Oriented Testing (UGOT)	p. 122
The Method	p. 127
Method for Black Box and White Box (Profiling) Tests	p. 128
Applying the Method to SOA and Web Services	p. 129
Planning: Background and Goals	p. 130
Definitions: Use Cases and Test Scenario	p. 132
Additional Use Cases Considered but Not Implemented	p. 134
Defining the Test Scenario	p. 135
Identify the Test Environment (Hardware and Software)	p. 136
Using the XSTest Pattern for Performance Tests	p. 137
Calibration Testing	p. 137
Scalability Index	p. 141
UnderstandingTPS	p. 143
Calibration What-If Chart	p. 148
Summary	p. 149
Learning XML-Centric Technology for SOA	p. 151
XML-Centric Options	p. 151
Reasons to Like XQuery and Native XML Databases	p. 153
XQuery in the SOA Stack: The Cookie Factory	p. 155
The Data Used in the Cookie Factory Example	p. 157
A Tour of XQuery	p. 160
Starting with the Basics	p. 160
Structure of an XQuery	p. 162
The Data Model: Nodes, Elements, and Sequences	p. 163
From XPath to XQuery	p. 168
Element Constructors	p. 170
FLWOR Expressions	p. 171
Functions	p. 176
Type Specification	p. 179
Namespaces	p. 179
Dates and Times	p. 181
My First XQuery Blunders	p. 181
Blunder 1:Declarative, Modal, Dynamic All at Once	p. 182
Blunder 2:The Generic Error and Debugging	p. 184
Blunder 3:Semicolons in the Query Prolog	p. 185
Blunder 4:XML versus XML Documents	p. 185
Blunder 5:Don't Think Procedurally	p. 187
Blunder 6:Sometimes You Need to Be Explicit	p. 187
Blunder 7:Value versus General Comparisons	p. 190
The Unfinished Parts of XQuery	p. 192
Federated Queries: SOAP,JDBC, and Java Data Sources	p. 192
Where to Find Answers to XQuery Questions	p. 197
Summary	p. 198
Getting SOA-Ready	p. 201
Composite Data Services	p. 201
Class/Object Definition	p. 205
Language and Platform	p. 206
Workflow Container	p. 208
Taxonomy and Registry	p. 209
Data Access Services	p. 211
Creating Business Value with Metadata	p. 214
Microformats	p. 216
Discovery Metadata	p. 217
Business Object Documents	p. 218
Enterprise Options to Build Business Logic	p. 220
LazySOA and Being Ready for SOA	p. 222
Service Registry	p. 223
XML Accelerator	p. 225
Enterprise Service Bus (ESB)	p. 227
Data Access Service and Components	p. 231
Deployment and Monitoring	p. 233
Composite Data Service Container	p. 234
SOA-Ready	p. 235
How to Evaluate SOA Tools	p. 237
Delivering Business Value with SOA	p. 238
Glossary	p. 241
Resources	p. 263
Index	p. 267
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