Oracle SOA Development - Hands-On from Start to Finish

Raastech, Inc.2201 Cooperative Way, Suite 600Herndon, VA [email protected]

Oracle SOA DevelopmentHands-On from Start to Finish

Wednesday, November 18,20152:20 - 3:15 pm

VT425

© Raastech, Inc. 2015 | All rights reserved. Slide 2 of 102@Raastech

Agenda

1. Understanding Oracle Integration Products

2. Our “Integration” Use Case

3. Implementing the Solution

4. Summary


About Me

Ahmed Aboulnaga @Ahmed_Aboulnaga

18+ years Oracle experience

Author of “Oracle SOA Suite 11g Administrator’s Handbook”

Author of “Oracle SOA Suite 12c Administrator’s Guide”

OCE (SOA Foundation Practitioner)

Oracle ACE


About Raastech

Small systems integrator founded in 2009

Headquartered in the Washington DC area

Specializes in Oracle Fusion Middleware

Oracle Platinum Partner 1 in 3,000 worldwide

Oracle SOA Specialized 1 in 1,500 worldwide

Oracle ACEs 2 in 500 worldwide


Oracle Fusion Middleware


Oracle Fusion Apps

Oracle E-Business Suite

Oracle JD Edwards

Oracle PeopleSoft

Oracle Siebel

Oracle Retail

More…



Oracle Database

Oracle MySQL



Oracle Linux

Oracle Solaris

Oracle VM

Oracle Exadata/Exalogic

Oracle SPARC

Oracle Storage Products



Oracle Integration Products

Oracle SOA Suite

Oracle Service Bus (OSB)

Oracle Data Integrator (ODI)

Oracle Web Services Manager (OWSM)

Oracle Application Integration Architecture (AIA)

Oracle Business Activity Monitoring (BAM)

Oracle GoldenGate

Oracle Enterprise Repository (OER)

Oracle API Gateway (OAG)

Oracle Service Registry (OSR)

Oracle B2B Integration


Oracle Integration Products

Oracle SOA Suite

Oracle Service Bus (OSB)

Oracle Data Integrator (ODI)

Oracle Web Services Manager (OWSM)

Oracle Application Integration Architecture (AIA)

Oracle Business Activity Monitoring (BAM)

Oracle GoldenGate

Oracle Enterprise Repository (OER)

Oracle Enterprise Gateway (OEG)

Oracle Service Registry (OSR)

Oracle B2B Integration


A comprehensive, hot-pluggable software suite to build, deploy and manage

Service-Oriented Architectures (SOA)

Unified application development tooling and end-to-end lifecycle management


Transforms complex architectures into agile integration networks by connecting,

mediating, and managing interactions between services and applications

Delivers low-cost, standards-based integration for mission critical SOA

environments where extreme performance and scalability are requirements


A comprehensive and easy-to-use solution for policy management and

security of service infrastructure

Provides visibility and control of the policies through a centralized

administration interface offered by Oracle Enterprise Manager


Gives business executives the ability to monitor their business services and

processes in the enterprise

Correlate KPIs down to the actual business process themselves

Allows the ability to change business processes quickly or to take corrective

action if the business environment changes


Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy

High-Level Flow of Use Case


Web Application

OSB Proxy Service

Mobile Application

OSB Proxy Service

OSB Proxy Service

OSB Proxy Service

Why OSB?

Consider using OSB as your entry (and/or exit) points

OSB is lightweight, and easily supports throttling and caching

OSB proxy services are usually exposed as web services


<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">

<wsse:Security soap:mustUnderstand="1">

<wsse:UsernameToken>

<wsse:Username>myusername</wsse:Username>

<wsse:Password>mypassword</wsse:Password>

</wsse:UsernameToken>

</wsse:Security>

</soap:Header> OSB Proxy Service

OWSM Policy

Why OWSM?

Install the Oracle Service Bus OWSM Extension to provide support

for WS-Security

Attach the policy “oracle/wss_username_token_service_policy”

Client must supply username and password in the SOAP header


SOA Suite Composite

BPEL(calculate tax)

Mediator(route)

Why SOA Suite?

Incoming payload includes:

Item Number

Quantity

Dollar Amount

Type Flag (‘M’ for mobile, ‘W’ for web)

Use BPEL for complicated flows and/or orchestration (e.g., calculate tax)

Use Mediator to route to the correct table based on the flag in the payload


SOA Suite Composite

BAM Reports

Why BAM?

BAM is essentially a reporting tool

Designed to capture in-flight transactions and report on them in real-

time

Does not impact performance of integration flow

In our use case, publish total dollar amounts of web orders to BAM

for management reporting


Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy

The Oracle Integration Layer

Bringing it all together…


<?xml version="1.0" encoding="ISO-8859-1" ?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<xs:element name="Order">

<xs:complexType>

<xs:sequence>

<xs:element name="OrderType" type="xs:string"/>

<xs:element name="ItemNumber" type="xs:string"/>

<xs:element name="Quantity" type="xs:positiveInteger"/>

<xs:element name="Price" type="xs:decimal"/>

</xs:sequence>

</xs:complexType>

</xs:element>

</xs:schema>

Create XML Schema

Create the Order.xsd schema file

An XML schema describes the structure of an XML message


Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy


CREATE TABLE web_orders (

item_number VARCHAR2(10),

quantity NUMBER,

dollar_amount NUMBER(7,2)

);

CREATE TABLE mobile_orders (

item_number VARCHAR2(10),

quantity NUMBER,

dollar_amount NUMBER(7,2)

);

Create the backend database tables

These tables represent the backend for our order system


Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy


Create the BAM Data Objects

BAM Data Objects are essentially tables

Used to store data that is published to BAM


BAM Data Objects are essentially tables

Used to store data that is published to BAM



Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy


BAMData Object

SOA Suite Composite

BPEL(calculate tax)

Mediator(route)

WebOrders Table

MobileOrders Table

Price x 1.05

OrderType = ‘W’

OrderType = ‘M’


Create SOA composite

A SOA composite application can consist of multiple components,

such as:

BPEL component

Mediator component

Database Adapters

BAM Adapter

Open up JDeveloper 11g

Create a new SOA project


Create a SOA project


Create Database Adapters for each table

Adapters are used for easily referencing technologies such as

databases, file systems, FTP servers, JMS, and so forth

The Database Adapter hides the underlying implementation of the

connectivity of the database, so that the SOA developer can focus

on building integrations

Simply drag the Database Adapter to the external references pane


Drag Database Adapter to pane


Provide a name for the reference

Use Database Adapter configuration wizard


Choose a database to connect to


Select the table name and columns from the database

Select table and columns


Select type of operation on this table


Database Adapters created in JDeveloper


Create SOA Mediator component

Create a Mediator component

Mediator’s strengths are in transformation and routing

Route to the Database Adapters that we just created…

…based on a filter on the ‘OrderType’ flag


Create a name for the Mediator component



Use the XSD we created earlier as our message input



Create a WSDL for the Mediator component


Create a routing rule


Select the Database Adapter we had created earlier

Select the Database Adapter


Create a filter expression


Create a transformation


Map the XML to the Database Adapter object


How the composite looks like so far


BPEL is used for orchestration or complicated logic

Simply drag the “BPEL Process” to the composite pane

Create SOA BPEL component


Create SOA BPEL component


Link the BPEL to the Mediator


Create an ‘Assign’ activity


Multiple the price


Multiply the price


Map rest of BPEL elements to Mediator object


Create an ‘Assign’ activity for the response


Create BAM Adapter

Similar to the Database Adapter, drag the BAM Adapter

Will query the BAM server and list all available data objects


Create BAM Adapter


Map BPEL object to BAM object


How the final SOA composite looks like


Deploy SOA composite

Right-click on the composite name to deploy to SOA server

URL becomes:

http://soadev:8001/soa-infra/services/default/ProcessOrder/calculatetax_client_ep?WSDL


Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy


OWSM Policy

OSB Project

ProxyService

Business Service

http://soadev:8001/soa-infra/...http://soadev:7001/ProcessOrderProxy/...

SOA Composite


Create OSB project

The OSB server is on a separate managed server

Import the WSDL of the SOA composite

Create a Business Service (the link to the SOA composite)

Create a Proxy Service (the exposed interface)

Secure the Proxy Service with an OWSM Policy


Create OSB project


Import the SOA composite WSDL


Create OSB Business Service


Create OSB Proxy Service


Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy


Click on Proxy Service


Attach OWSM Policy to OSB Proxy Service


…to identify exposed URL


Final OSB exposed WSDL

The exposed WSDL for the OSB Proxy Service:

http://soadev:7001/ProcessOrderProxy/ProcessOrderPS?wsdl

This is the WSDL that the web/client applications will invoke


Web Application

OSB Proxy Service

Mobile Application

SOA Suite Composite

Database Table 1

& Table 2

BAM Reports

OWSM Policy


Test with soapUI

Use soapUI to test the WSDL


Observe authentication failure

Seems to be some security error

Valid error… no username/password provided in payload!


Test with security token in SOAP header

With authentication info in header, we get our ‘Done’ response


Observe instance in EM Console


View instance flow

Clicking on the instance ID shows a successful flow

Data only inserted to the ‘WebOrders’ table as expected


View Mediator instance details


Confirm data in database

Querying the database table confirms this


Confirm data in BAM Data Object

Data also published to BAM!

Can now create a report to query this Data Object


Summary

1. Create an XML Schema

2. Create the database tables

3. Create the BAM Data Object


Summary

4. Create the SOA composite with JDeveloper

a. Open up JDeveloper 11g

b. Create a SOA project

c. Create 2 Database Adapter services

d. Create a Mediator componenti. Create a web service interface using the XSD fileii. Create 2 routing rules to the 2 database servicesiii. Use a filter expression on the 'OrderType' element

e. Create a BPEL componenti. Link the BPEL component with the Mediator componentii. Map the input of the BPEL to the input of the Mediatoriii. But multiple the price by 1.05iv. Create a BAM Adapter to the BAM Data Objectv. Map the input of the BPEL to the BAM Adapter


Summary

5. Deploy the SOA composite

a. Get the WSDL of the SOA composite

6. Create an OSB project

a. Create a Business Service using this SOA WSDL

b. Create a Proxy Service as the OSB interface

c. Secure the Proxy Service with an OWSM Policy

7. Test using soapUI


Take Aways

Understand where each product should be aligned

There is some overlap between products

There is no one-size fits all architecture

Understand the difference between and usage of OSB, OWSM, BAM,

and SOA Suite

Observe first hand a walkthrough demo:

OSB used as a passthrough, but has other benefits not demo’ed here

OWSM provides a mechanism to attach security policies to a service

BPEL used for orchestration

Mediator used for routing


Final Thoughts

All these products are provided as part of a single Oracle SOA Suite

license, so take advantage of them!

You can use any combination of OSB, BPEL, or Mediator depending

on your needs


Contact Information

Ahmed Aboulnaga

Technical Director

@Ahmed_Aboulnaga

[email protected]


Q&A

Oracle SOA Development - Hands-On from Start to Finish

Technology

Transcript of Oracle SOA Development - Hands-On from Start to Finish