Web Service Implementation and Composition Techniques

ISBN-13: 9783319856896 / Angielski / Miękka / 2018 / 256 str.

Hye-Young Paik; Angel Lagares Lemos; Moshe Chai Barukh

Spis treści

1 Introduction to Service Oriented Architecture.- 1.1 The Service Oriented Architecture Paradigm.- 1.1.1 Goals of Service Orientation.- 1.1.2 What is a Service?.- 1.1.3 The SOA Architectural Stack.- 1.2 Service Composition and Data-Flow.- 1.2.1 Data-Flow Paradigms.- 1.2.2 Composition Techniques.- 1.2.3 End-user Mashups.- 1.3 Goals, Structure and Organization.- 1.4 Lab Exercise 00 – Practical Exercise Environment Setup.- 1.4.1 SOA-Book Github Site.- 1.4.2 Preliminaries.- 1.4.3 Installing Apache Maven and Eclipse Maven Plug-in.- 2 Web Services - SOAP and WSDL.- 2.1 Simple Object Access Protocol (SOAP).- 2.1.1 Binding SOAP Messages to a Transportation Protocol.- 2.1.2 SOAP Extension using SOAP Headers.- 2.2 Web Services Description Language (WSDL).- 2.3 WSDL Main Elements.- 2.4 Message Communication Model in SOAP/WSDL.- 2.4.1 RPC-style.- 2.4.2 Document-style.- 2.5 Lab Exercise 01 – Developing simple Web services with Apache CXF and Maven.- 2.5.1 Activity 1: Hello World with Apache CXF.- 2.5.2 Activity 2: Building Simple Services.- 2.6 Lab Exercise 02: Fault handling in Apache CXF and Web service client development.- 2.6.1 Activity 1: Adding SOAP Faults to Top Down Simple Service.- 2.6.2 Activity 2: Developing a Web Service Client Application.- 3 Web Services - REST or Restful Services.- 3.1 REST Design Principles.- 3.2 Resources.- 3.3 Resource Identification.- 3.4 Addressability.- 3.5 Statelessness.- 3.6 Resource Representations.- 3.7 Uniform Interfaces in REST.- 3.8 Web API Design for RESTful services.- 3.8.1 Designing URIs.- 3.8.2 Design of the Responses.- 3.8.3 HATEOAS - Taking your API to the Next Level.- 3.9 REST-based Service Implementation.- 3.9.1 Building REST Web services.- 3.10 Lab Exercise 03: A Simple REST Service with Apache CXF (JAX-RS).- 3.10.1 Activity 1: Start with Hello World.- 3.10.2 Activity 2: Testing the HelloWorld service.- 3.10.3 Activity 3: CRUD Operations on Resources.- 3.10.4 Activity 4: Developing a Client for RESTful Services.- 4 Web Services - Data Services.- 4.1 Data Services.- 4.1.1 WS-* and RESTful services.- 4.1.2 Data Access as a Service.- 4.2 Implementing Data Services.- 4.3 XML Transformation and Query Techniques.- 4.3.1 XPath.- 4.3.2 XSLT.- 4.3.3 XQuery.- 4.4 Exposing Data as Services.- 4.5 Lab04: Data Service Enablers - XSLT and XQuery.- 4.5.1 Working through XSLT examples.- 4.5.2 Working through XQuery examples.- 5 Web Service Composition: Overview.- 5.1 From Atomic to Composite Services.- 5.2 Service Orchestration vs. Service Choreography.- 5.3 Service Composition View from Orchestration and Choreography.- 5.4 Benefits of Web service composition.- 5.5 Web Service Composition Environment.- 6 Web Service Composition: Control Flows.- 6.1 BPEL (Business Process Execution Language).- 6.1.1 BPEL Model.- 6.1.2 BPEL Example.- 6.2 BPMN (Business Process Model and Notation).- 6.2.1 BPMN Model.- 6.2.2 BPMN Example.- 6.3 Lab Exercise 05: Web service composition with BPEL and Apache ODE.- 6.3.1 Software Setup.- 6.3.2 Activity 1: Hello World in BPEL.- 6.3.3 Activity 2: Simple Home Loan Process Service.- 7 Web Service Composition: Data Flows.- 7.1 Data-Flow Paradigms.- 7.1.1 Blackboard.- 7.1.2 Explicit Data Flow.- 8 Service Component Architecture (SCA).- 8.1 Introduction to SCA.- 8.1.1 The SOA Integration Problem.- 8.1.2 Overview of SCA.- 8.1.3 Application of SCA to Use-Case.- 8.1.4 SCA Runtime.- 8.1.5 Benefits of SCA.- 8.2 The Stock Application.- 8.3 The SCA Assembly Model.- 8.3.1 SCA composite.- 8.3.2 SCA Component.- 8.4 Lab Exercise 06: SCA.- 8.4.1 Activity 1: Building the first SCA composite – Hello World Service.- 8.4.2 Activity 2: Building the Stock Application.- 9 Conclusion.- References.- Index.

O autorze

Hye-young Paik is a Senior Lecturer in the School of Computer Science and Engineering at the University of New South Wales (UNSW), Sydney, Australia. She has been teaching and researching the topics related to Web services and Business Process Management for many years. Her current research interests include flexible Web service composition, personalizing business processes and text mining techniques for business processes.

Angel Lagares Lemos is the COO of Nimbeo and a Post-Doctoral Researcher at the Department of Computer Science, Carlos III University, working with the IBIS group. He obtained his PhD in Computer Science and Engineering at UNSW Australia, for his work on unlocking Web service composition. His current research interests include Web service composition, semantic Web, semantic Web services, business process modeling, Software-as-a-Service (SaaS) and cloud computing.

Moshe Chai Barukh is a Lecturer & Senior Research Fellow in the Service Oriented Computing Research Group at UNSW Australia. He obtained his PhD in Computer Science and Engineering at UNSW, for his work on effective techniques for Service Oriented Programming and management of Hybrid Processes. His primary research interests include Web services integration and composition techniques, agile business process management, big data analytics, cloud and social computing.

Boualem Benatallah is a Scientia Professor in the School of Computer Science and Engineering at UNSW Australia; the founder and leader of the Service Oriented Computing Research Group at UNSW. His research interests include Web services composition, quality control in crowdsourcing services, cloud services orchestration, data curation and end users analytics.

Aarthi Natarajan is an academic and software consultant with over 18 years of professional experience; she is currently engaged as a professional instructor at UNSW Australia and Oracle University. She obtained her PhD in Computer Science and Engineering at UNSW for her work on a model-driven architecture for conducting event data analysis. Her current research interests include big data/financial analytics, business process modeling and semantic technologies.

Blurb

This book embarks on a mission to dissect, unravel and demystify the concepts of Web services, including their implementation and composition techniques. It provides a comprehensive perspective on the fundamentals of implementation standards and strategies for Web services (in the first half of the book), while also presenting composition techniques for leveraging existing services to create larger ones (in the second half). Pursuing a unique approach, it begins with a sound overview of concepts, followed by a targeted technical discussion that is in turn linked to practical exercises for hands-on learning. For each chapter, practical exercises are available on Github.

Mainly intended as a comprehensive textbook on the implementation and composition of Web services, it also offers a useful reference guide for academics and practitioners. Lecturers will find this book useful for a variety of courses, from undergraduate courses on the foundational technology of Web services through graduate courses on complex Web service composition. Students and researchers entering the field will benefit from the combination of a broad technical overview with practical self-guided exercises. Lastly, professionals will gain a well-informed grasp of how to synthesize the concepts of conventional and “newer” breeds of Web services, which they can use to revise foundational concepts or for practical implementation tasks.