Introduction to Web Services

Transcript Introduction to Web Services

Introduction to Web Services Agenda  What is a Web Service?

 Web Service Components (WSDL, UDDI , SOAP)  Web Services Adapter  WebFOCUS Web Services Functionality  WebFOCUS Web Services WSDL Creation  ReportCaster Web Services Functionality  ReportCaster Web Services WSDL Creation  Xignite Web Services Copyright 2007, Information Builders. Slide 2

What is a Web Service?

Definition  A self-contained, modular application that can be described, published, located, and invoked over the Web.  Platform-neutral and based on open standards, Web Services can be combined with each other in different ways to create business processes that enable you to interact with customers, employees, and suppliers . Copyright 2007, Information Builders. Slide 3

What is a Web Service?

Basic Concepts  Web Services use the Web to perform application-to application integration  Web Services are business process interfaces  Each Web Service is a point of interaction to give input and receive output from a business process  Allow previously incompatible applications to interoperate on the Web regardless of language, platform, and operating systems  A standalone function that can be called by many different applications Copyright 2007, Information Builders. Slide 4

What is a Web Service?

Usage Benefits  Reduce complexity by encapsulating business processes into reusable components  Improve interoperability by acting as a wrapper around legacy or platform-specific applications  Promote true interoperability through platform and implementation neutrality  A Web service can be self-describing (WSDL,UDDI)  Develop applications much faster than before  A Web Service is a simple, reliable way to blend existing systems with new applications and services Copyright 2007, Information Builders. Slide 5

What is a Web Service?

Web Service Components WSDL

Web Services Description Language (WSDL)

 The standard format for describing a Web Service. Expressed in XML, a WSDL definition describes how to access a Web Service and what operations it will perform  A WSDL document provides information on the data being exchanged, the sequence of messages for an operation, protocol bindings (HTTP), and the location of the service  A WSDL document defines services as a collection of endpoints (location within a context to which remote service requests can be directed) Copyright 2007, Information Builders. Slide 11

Web Service Components UDDI

Universal Description Discovery and Integration (UDDI)

 UDDI is an XML-based registry for businesses worldwide to list themselves on the Internet for Web Services and for other electronic and non-electronic services  Allows businesses to list themselves by name, product, location, or the Web Services they offer (Yellow Pages)  Service consumers can use UDDI to discover services that suit their requirements (www.xmethods.net) Copyright 2007, Information Builders. Slide 13

Web Service Components UDDI - www.xmethods.net

Web Service Components UDDI www.xmethods.net

Web Service Components SOAP

Simple Object Access Protocol (SOAP)

 A way for a program running in one operating system to communicate with a program in the same or another operating system  A standard for exchanging XML based messages (Request/Response) normally using HTTP  SOAP Envelope identifies an XML document as being a SOAP message and encapsulates all the other parts of the  message SOAP Header is optional and can be used to extend the message syntax independently for a particular application  SOAP Body where application specific data is placed. Encoding rules of the Envelope describe what syntax was used to encode data in the Body.

Web Services Adapter Basic Functionality  Released with WebFOCUS 5.3

 Web Services Adapter allows WebFOCUS to directly interact with a Web Service  Able to create a report to read data returned from a Web Service  Able to pass parameters to a Web Service for reporting  Able to pass parameters to a Web Service for updating data within an application  Able to consume a WSDL file  Join Web Services to Other Web Services or other Tables (eg. SQL Server, ORACLE, Teradata) Copyright 2007, Information Builders. Slide 19

Web Services Adapter Consuming a WSDL File  Reads a WSDL file and creates the Connection information in EDASPROF  Reads a WSDL file and creates the Master and Access file for a particular Web Service function  New suffix: Suffix=SOAP  1 st Segment of the Master contain the input parameters  Data Types get mapped to default Formats (USAGE and ACTUAL)  Arrays of output get mapped to multiple segments Copyright 2007, Information Builders. Slide 20

Web Services Adapter Data Type Mappings Data Type string Double float decimal int short long boolean dateTime USAGE A30 D20.2 F15.2 P20.3 I11 I6 P20 A5 HYYMDm ACTUAL A30 A20 A15 A20 A11 A6 A20 A5 A27 Copyright 2007, Information Builders. Slide 21

WebFOCUS Web Services Functionality Overview  Released with WebFOCUS 5.2

 Run any WebFOCUS Report as a Web Service function  Output is returned in the format defined in the WebFOCUS report (eg. HTML, EXCEL, PDF, XML)  Run a WebFOCUS Report using a generic WebFOCUS Web Service function  Find out parameters for a WebFOCUS Report  Support for drill-down reports Copyright 2007, Information Builders. Slide 31

WebFOCUS Web Services Functionality Overview (Cont’d)  Support for Graphs (PNG,SVG,JPEG,GIF)  Managed Reporting Security maintenance  Managed Reporting Domain/Folder/Report Maintenance (Create,Rename,Delete)  Get a list of values for a Field  Get the status of deferred reports Copyright 2007, Information Builders. Slide 32

WebFOCUS Web Services WSDL Creation http://

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/ibi_html/workbnch/webservice.htm

ReportCaster Web Services Functionality Overview  Released with WebFOCUS 5.3

 Schedule any WebFOCUS Report  Get a List of Schedules and Schedule Info  Address Book Maintenance  ReportCaster Security Maintenance  Report Library Integration  Report Library Access Maintenance  Get a List of Running Jobs Copyright 2007, Information Builders. Slide 36

ReportCaster Web Services WSDL Creation http://

machine name

ReportCaster Web Services WSDL Creation http://

machine name

Xignite Xignite Web Services

Introduction to Web Services

Transcript Introduction to Web Services

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