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Java Web Services Developer Pack v1.3 Zhongnan Shen 12/04/2003.

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Presentation on theme: "Java Web Services Developer Pack v1.3 Zhongnan Shen 12/04/2003."— Presentation transcript:

1 Java Web Services Developer Pack v1.3 Zhongnan Shen 12/04/2003

2 Outlines  What is WSDP?  What ’ s in WSDP?  An Example The Coffee Break Application  Resources

3 What is WSDP  A free integrated toolkit used to build and test XML applications, Web services, and Web applications with the latest Web service technologies and standards implementations ;  Supports WS-I Basic Profile 1.0;  Can be downloaded at size:26M; platform: windows, unix

4 What ’ s in WSDP  Java Architecture for XML Binding (JAXB) v1.0.2;  Java API for XML Processing (JAXP) v1.2.4;  Java API for XML-based RPC (JAX-RPC) v1.1;  SOAP with Attachments API for Java (SAAJ) v1.2;  Java API for XML Registries (JAXR) v1.0.5;  JavaServer Faces (JSF) v1.0 EA4;  JavaServer Pages Standard Tag Library (JSTL) v1.1 EA;  XML and Web Services Security v1.0 EA2;  Java WSDP Registry Server v1.0_06;  Ant Build Tool 1.5.4;  Apache Tomcat v5 development container;  Ws-I Supply Chain Management Sample Application 1.0;

5 What ’ s in WSDP  Java Architecture for XML Binding (JAXB) Providing API and tools for automating the mapping between XML documents and Java objects; Compiling an XML schema into one or more Java technology classes; The following operations can be performed :  unmarshal XML content into a Java representation;  access, update and validate the Java representation against schema constraint;  marshal the Java representation of the XML content into XML content.

6 What ’ s in WSDP  Java Architecture for XML Binding (JAXB) XML SchemaJava Class Files PurchaseOrder. java Comment.java PurchaseOrder Type.java

7 What ’ s in WSDP  Java API for XML Processing (JAXP) supports processing of XML documents using DOM, SAX, and XSLT ;  Document Object Model (DOM): an application programming interface for HTML and XML documents;  Simple API for XML (SAX): a common interface implemented for many different XML parsers;  XSL Transformations (XSLT): a language for transforming XML documents into other XML documents; supports for XML schema and an XSLT compiler (XSLTC);

8 What ’ s in WSDP  Java API for XML-Based RPC (JAX-RPC) an API for building Web services and clients that use remote procedure calls (RPC) and XML ; an easy-to-develop programming model for development of SOAP based web services, including web service clients and endpoints;  developers are not exposed to the complexity of SOAP protocol level mechanisms; support for WSDL->Java and Java->WSDL mapping; support for SOAP message processing model; support for document based messaging; support HTTP level session management and SSL based security mechanisms.

9 What ’ s in WSDP  Java API for XML-Based RPC (JAX-RPC)

10 What ’ s in WSDP  SOAP with Attachments API for Java (SAAJ) enables developers to produce and consume messages conforming to the SOAP 1.1 specification and SOAP with Attachments note; derived from the package originally defined in the JAXM 1.0 specification; SOAP messages can contain both XML contents and non-XML contents (as attachments); Messages sent using the SAAJ API are called request-response messages;

11 What ’ s in WSDP  SOAP with Attachments API for Java (SAAJ)

12 What ’ s in WSDP  Java API for XML Registries (JAXR) provides a uniform and standard Java API for accessing different kinds of XML Registries;  ebXML Registry and Repository standard;  Universal Description, Discovery, and Integration (UDDI); JAXR enables Java software programmers to use a single, easy-to-use abstraction API to access a variety of XML registries. A unified JAXR information model describes content and metadata within XML registries ;

13 What ’ s in WSDP  Java API for XML Registries (JAXR)

14 What ’ s in WSDP  JavaServer Faces Technologies a server-side user interface framework for Java technology-based Web applications ; Main components include :  A set of APIs for: representing UI components and managing their state; handling events and input validation; defining page navigation; supporting internationalization and accessibility.  A JavaServer Pages (JSP) custom tag library for expressing UI components within a JSP page.

15 What ’ s in WSDP  JavaServer Faces Technologies

16 What ’ s in WSDP  JavaServer Pages Standard Tag Library (JSTL) encapsulates core functionality common to many JSP applications;... ${item.quantity}...

17 What ’ s in WSDP  JavaServer Pages Standard Tag Library (JSTL) AreaSubfunctionPrefix Core Variable Support c Flow Control URL Management Miscellaneous XML Core x Flow Control Transformation I18n Locale fmt Message formatting Number and date formatting DatabaseSQL sql Functions Collection length fn String manipulation

18 What ’ s in WSDP  XML and Web Services Security Transport-Level Security security is addressed by the transport layer.  Basic Authentication with JAX-RPC;  Client-Certificate Authentication over HTTP/SSL with JAX-RPC; Message-Level Security security information is contained within the SOAP message.

19 What ’ s in WSDP  Java WSDP Registry Server The Java Web Services Developer Pack (Java WSDP) Registry Server implements Version 2 of UDDI; provide a UDDI registry for Web services in a private environment; use it with the Java WSDP APIs as a test registry for Web services application development.

20 An Example  Coffee Break Application The Coffee Break server obtains the coffee varieties and their prices by querying distributors at startup and on demand. The Coffee Break server uses SAAJ messaging to communicate with one of its distributors. The Coffee Break server uses JAXR to send a query searching for coffee distributors that support JAX-RPC to the Registry Server. The Coffee Break server requests price lists from each of the coffee distributors. The Coffee Break server forwards suborders to each distributor to get confirmations.

21 An Example-Coffee Break  JAX-RPC Distributor Service Service side  Service Interface public interface SupplierIF extends Remote { public ConfirmationBean placeOrder(OrderBean order) throws RemoteException; public PriceListBean getPriceList() throws RemoteException; }  Publishing the Service in the Registry JAXRPublisher publisher = new JAXRPublisher(); publisher.makeConnection(queryURL, publishURL); String key = publisher.executePublish(username, password, endpoint);

22 An Example-Coffee Break  JAX-RPC Distributor Service Client side  Building the Static Stub Client ; Clients makes remote call through a stub, a local object which acts as a proxy for the remote service. wscompile -gen:client -d build -classpath build config-wsdl.xml -gen:client flag instructs wscompile to generate the stubs; -d: flag tells the tool to write the output to the build subdirectory; config-wsdl.xml file: specifies the location of the WSDL file;  Invoking the remote method PriceListBean priceList = PriceFetcher.getPriceList(distributor);

23 An Example-Coffee Break  SAAJ Distributor Service SAAJ Service  Returning the Price List public void doPost(HttpServletRequest req, HttpServletResponse resp) { … Analyze the request … … Compose the message … OutputStream os = resp.getOutputStream(); reply.writeTo(os); os.flush(); }  Returning the Order Confirmation

24 An Example-Coffee Break  SAAJ Distributor Service SAAJ Client SOAPConnectionFactory scf = SOAPConnectionFactory.newInstance(); SOAPConnection con = scf.createConnection(); …… Compose the request …… SOAPMessage response = con.call(request, endpoint);

25 An Example-Coffee Break  Coffee Break Server The Coffee Break Server uses servlets, JSP pages, and JavaBeans components to dynamically construct HTML pages for consumption by a Web browser client. RetailPriceListServlet & RetailPriceList  The RetailPriceListServlet responds to requests to reload the price list;RetailPriceListServlet  Component RetailPriceList Discovering the JAX-RPC Service JAXRQueryByName jq = new JAXRQueryByName(); connection = jq.makeConnection(queryURL, publishURL); jq.executeQuery(queryString); Query JAX-RPC service and SAAJ service CheckoutFormBean submits suborders to each distributor

26 Resources  Java Web Services Developer Pack 1.3 dowload: spack.html Tutorial: ndex.html Sample Applications: sampleapp/index.html

27 Thanks for Listening


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