Middleware Technology Training Lab Course

Middleware Technology Training Lab Course

Outline • Lab introduction • Create Web services • Business modeling • Implement a business process • Integrate services through ESB

Lab Scenario • A library application • Book subscription service • Query whether a book exists in a library • If it exists, query whether it is allowed to lend out • If it is allowed to lend, subscript the book • Book query service • Domestic books and foreign books are in different libraries • The foreign books is charged in USD • When query a foreign book, its price should be converted from USD to RMB

Lab Environment • Process modeling • WebSphere Business Modeler (WBM) • Service integration development • WebSphere Integration Developer (WID) • Runtime • WebSphere Process Server (WPS) • An integration test environment embedded into WID

Create Web services • Create a Web service from a Java Bean • Create a Web project • Generate a Web service • Create a Web service from a WSDL • Create a Web service from an abstract WSDL (SCA Interface) • Obtain a concrete WSDL using WSDL Editor • Export as a Web service • Test a Web service using Web service explorer

Create a Web service from a Java Bean

Create a Web service from an abstract WSDL (SCA Interface) • Create an SCA module and an SCA component • Export the SCA component and obtain a concrete WSDL • Generate a Web service from the concrete WSDL • Test the Web service • Monitor the SOAP request & response

Create an SCA module Create a temporary SCA module Give a name of the temporary module

Create an SCA component Navigator or package explorer view Create a SCA component Select an interface for a SCA component Copy meta data to the TempMod

Export the SCA component Create a SCA export using Web service binding A concrete WSDL is generated

Generate and Test a Web service

Monitor SOAP request & response (1) 1 TCP/IP monitor is in the Windows-> Preferences menu 3 Start the monitor after creating it 2 Create a new TCP/IP monitor Host name and port under monitor

Monitor SOAP request & response (2) In Web Services Explorer, change the endpoint port to the local monitor port (9085) Monitored SOAP request and response

Top-Down or Bottom-Up • Create a Web service from a Java Bean • Top-down? • Bottom-up? • Create a Web service from a WSDL • Top-down? • Bottom-up? Bottom-up Top-down

Service identification and specification For the book subscription service in slide 3 • Service identification • List candidate processes and services • Service specification • Service exposure decisions • Non-functional requirements • Message specifications • Other else?

Create a process in WBM • Screen video Please use a screen resolution over 1280*1024 • Create a business item • Create a process • Export the process to WPS

Create a WBM project WBM Project Name Directory of business processes Create a process when creating the project

Create a business item Create a business item to represent books Specify book attributes

Create a process (1) Preengage the book Check whether the book is allowed to lend Query whether the book exists. Its output is a business item (book). The probability of book allowed is 50% Input to the process is a String (book name) Notify the reader that the book is not allowed to lend The probability of book found is 50% Notify the reader that the book is not found

Create a process (2) 2 Select an output branch 1 Switch to WPS mode 4 3 Edit a condition expression Edit attributes of the output branch

Export a process from WBM Target directory to keep the exported project Export the process model to WPS A module project refers to a module library. A library keeps meta data, such as interfaces, data types Package the exported export to a zip file

Import a process to WID Select to import zip packaged projects Import a SCA module and its library

Simulate a process

Implement a business process • Import Web services • Implement Java components • Export the BPEL component • Test a SCA component

Import Web services (1) The two WSDLs are for the Query service (AProject) and Notify service (BProject) Copy the WSDL of the imported Web services into the SCA module

Import Web services (2) Drag imported WSDLs to Assembly Diagram to generate Web service imports Adjust the assembly diagram, and wire to the Web service imports

Implement Java Components (1) Select Java implementation Select Java package

Implement Java Components (2) Java implementation of the check component Java implementation of the preengage component

Export the business process Select SOAP/HTTP Select Web service binding

Implement a business process • Create a mediation module • Create a mediation component • Connect to target services • Create a mediation flow • Create a filter mediation • Create transformation mediations • Export the mediation component • Test the mediation component

Create a mediation module (1) Add an SCA library Create a mediation module Add an import and a Java component

Create a mediation module (2) Java implementation of Component1 Create a new SDO from a Data Type Set attributes of the SDO

Create a mediation module (3) 2 The interface is completed 1 Create a new interface as the unified interface of the mediation 2 Add the interface to the mediation component

Create a mediation flow (1) Connect interface and references Construct request flow Construct response flow

Create a mediation flow (2) Two terminals are in the filter mediation primitive If the input starts with E, route the message to match1 terminal

Create a mediation flow (3) Create a new XSLT mapping for a transformation mediation primitive Create a new XSLT mapping for a transformation mediation primitive Define XSLT function

Delete emulators and use the real services Test a mediation

Middleware Technology Training Lab Course