Google, Amazon, and Beyond : Creating and Consuming Web Services

by Nakhimovsky, Alexander

• ISBN13: 9781590591314
• ISBN10: 1590591313
• Format: Paperback
• Copyright: 2003-11-01
• Publisher: Springer-Verlag New York Inc

Summary

While many books are focused on the underlying technologies of Web Services and others are dedicated to providing Web Services, few books show how to consume Web Services. This new book, "Consuming Web Services: The APIs from Google, Amazon, and Beyond," provides a thorough review of the technologies and techniques for connecting client applications to services of all kinds. Using a decidedly hands-on approach, the authors show extensive examples of programming with XML, SOAP, WSDL, and UDDI in a variety of programming languages.

Table of Contents

About the Authors	xiii
About the Technical Reviewer	xv
Acknowledgments	xvii
Introduction	xix
Chapter 1 Defining Web Services	1	(24)
The Evolving Web Services Vision	3	(3)
Area of Application: Service-to-Service Interactions	4	(1)
Area of Application: Client-to-Service Interactions	5	(1)
Google MindShare	6	(7)
Outline and Application-Specific Code	8	(3)
Web Services Technologies, Tasks, and Functions	11	(2)
The Javascript Code and the Google API	13	(5)
Code Part 2 and xmlhttp API	15	(1)
Code that Uses the xmlhttp API to Connect to Google	15	(2)
Summary of xmlhttp	17	(1)
Google API with Examples of Use	18	(6)
Google API Examples in Javascript with xmlhttp	19	(5)
Conclusion	24	(1)
Chapter 2 The Plumbing: DOM and SOAP	25	(42)
Using XML DOM	26	(7)
DOM Basics	27	(2)
DOM Code for Data Access	29	(1)
DOM Code for Data Transformation	30	(2)
From XML Text to DOM Tree and Back	32	(1)
The Anatomy of a SOAP Message	33	(3)
Overview of SOAP 1.2	36	(5)
SOAP Message Exchange Model	37	(1)
The XML Structure of a SOAP Message	38	(3)
XML Encoding and RPC Conventions	41	(7)
An Example: Google Search Response	42	(4)
SOAP Encoding and the Data Model	46	(2)
Representation of RPC in SOAP1.2-2	48	(1)
XML Schema and Its Role in SOAP	48	(16)
XML Schema Part 2	49	(8)
XML Schema Part 1: Structures	57	(7)
Conclusion	64	(3)
Chapter 3 More Services: Java Applet	67	(32)
Service-Independent Javascript	68	(16)
How's the Weather?	68	(3)
Amazon Keyword Search	71	(5)
SOAP Response in an HTML Table	76	(5)
Amazon Web Services API	81	(3)
A Java Version of a SOAP Client	84	(13)
XML over HTTP in Java	86	(3)
Applet with Privileged Access	89	(4)
Applet Generalized	93	(1)
Multi-Service Applet	94	(3)
Conclusion	97	(2)
Chapter 4 DBService and a Book Club	99	(32)
The Book Club Application	100	(1)
Main Components, in Order of Appearance	101	(4)
Service Startup	103	(2)
Sockets and Ports	105	(6)
Java IO and Streams	107	(1)
Bytes and Characters	108	(1)
Socket Communications	108	(3)
Processing HTTP Request	111	(2)
Parse SOAP, Return Query Result	113	(4)
XML Parsing in Java	114	(1)
SOAP Parameters	115	(1)
Output the Result of SOAP Call	116	(1)
Driver, Database, Connection, and Statement	117	(8)
JDBC Driver	117	(1)
Connections and Connection Pooling	118	(2)
SQL Statements and Result Sets	120	(1)
Prepared Statements and Our Method to Query Data	121	(2)
XML Encoding of Java Code	123	(2)
Database Access in DBService	125	(5)
Conclusion	130	(1)
Chapter 5 Authentication and REST	131	(30)
BookClubReviewer in Action	132	(4)
HTTP User Authentication	136	(16)
HTTP Transactions Revisited	137	(2)
Base64 Encoding and More Secure Alternacivcs	139	(2)
CheckingAuthorization	141	(4)
Using the Authorization System	145	(7)
The REST Version	152	(8)
HTTP Commands and REST	152	(2)
REST Version Code	154	(6)
Conclusion	160	(1)
Chapter 6 Restructuring Results with XSLT	161	(30)
Introduction to XSL T and XPath	162	(15)
What's a Tree?	164	(1)
DOM Trees and XPath Trees	165	(1)
The Node Types of the XPath Tree	166	(1)
The XPath Language	166	(3)
The First Stylesheet	169	(3)
Computing with Templates: Pull and Push	172	(2)
Variations and Default Templates	174	(3)
XSLT for Amazon Data	177	(6)
Tables Using Push	179	(2)
Creating Tables Using Pull and Sorting	181	(1)
Sorting, String Functions and Data Types	182	(1)
Combining Data Sources in XSL T	183	(6)
The Top-Level Template	184	(2)
Pulling in XML Data	186	(1)
Producing the Output	187	(2)
Conclusion	189	(2)
Chapter 7 Tomcat, JSP, and WebDAV	191	(32)
Tomcat and JSP	193	(2)
JSP Basics	195	(4)
testJSPjsp	195	(2)
The JSP and its Java Code	197	(2)
SOAPxslt. jsp	199	(10)
The HTML Client Page	201	(2)
The JSP Page	203	(2)
The Stylesheet	205	(4)
WebDAV in General and in Tomcat	209	(5)
WebDAV Overview	209	(1)
WebDAV in Tomcat	210	(4)
TidyFilter. java	214	(8)
Filter Chains in General and in Tomcat	214	(3)
The Beginning of TidyFilter.java	217	(1)
The Central Method of TidyFilter	218	(2)
Tidying Up HTML	220	(1)
Tidy Configuration File	221	(1)
Conclusion	222	(1)
Chapter 8 WebDAV Client to Database via XML	223	(36)
XsltFilter: Motivations and an Example	223	(7)
From Headers to Structure	225	(4)
Filter Configuration	229	(1)
New XPath and XSLT	230	(10)
Axes	231	(2)
The Full Form of XPath Expressions	233	(2)
XSL Keys as Elements and Functions	235	(1)
Parameters and Variables	236	(2)
The Mode Attribute	238	(2)
The Code of hierdivixsl	240	(8)
The Key Definitions	241	(1)
The Top-Level Template	242	(1)
The Section-Handling Template	243	(4)
The Text-Collection Template	247	(1)
DBFilter. java	248	(10)
Changes to web.xml and Filter Methods	251	(1)
Changes to the Transformation Method	252	(1)
Topics and the Structure of the Database	253	(3)
Putting the Topics in the Database	256	(2)
Conclusion	258	(1)
Chapter 9 WSDL and Axis	259	(46)
A Brief History of WSDL and Axis	260	(1)
Frameworks in General, Axis in Particular	261	(1)
The Factorial Service	261	(11)
Factorial.java	262	(1)
Factorial.jws	262	(1)
Obtaining aWSDL Description of the Factorial Service	262	(2)
Automatic Client Construction for Factorial.jws	264	(2)
Invoking the Client	266	(1)
Exceptions From Server to Client	267	(1)
The Axis TCP Monitor	268	(4)
An Overview of WSDL	272	(6)
Document/Literal WSDL	278	(12)
XML Schema for StockQuote	279	(1)
Messages, PortType, Service	280	(1)
HTTP Binding for StockQuote	281	(1)
Generated Client Packages	282	(1)
Generated Service Stubs	283	(1)
The Stock Quote Client	284	(1)
Web Services Deployment Descriptor (WSDD)	285	(3)
The TCP Monitor on StockQuote	288	(2)
Creating WSDL for DBAuthService	290	(13)
WSDL for Database Updates	290	(5)
The Code of the Database Update Client	295	(2)
WSDL for the Database Query Client	297	(6)
Conclusion	303	(2)
Appendix A Installation	305	(4)
Appendix B Troubleshooting	309	(2)
Appendix C Online Resources	311	(3)
Standards	311	(1)
W3C Technical Reports	311	(1)
OASIS Technical Committees	312	(1)
Other Consortia	312	(1)
Sources of Information	312	(2)
XML Resources	313	(1)
JavaXML Processing and Web Services	313	(1)
Web Services	314	(1)
Keep Looking	314	(1)
Index	315