Oracle SOA Development - Hands-On from Start to Finish

Raastech, Inc.
2201 Cooperative Way, Suite 600
Herndon, VA 20171
+1-703-884-2223
info@raastech.com
Oracle SOA Development
Hands-On from Start to Finish
Wednesday, November 18,2015
2:20 - 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 Fusion Middleware

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

BAM
Data 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
Proxy
Service
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 component
i. Create a web service interface using the XSD file
ii. Create 2 routing rules to the 2 database services
iii. Use a filter expression on the 'OrderType' element
e. Create a BPEL component
i. Link the BPEL component with the Mediator component
ii. Map the input of the BPEL to the input of the Mediator
iii. But multiple the price by 1.05
iv. Create a BAM Adapter to the BAM Data Object
v. 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
 ahmed.aboulnaga@raastech.com

Q&A

Oracle SOA Development - Hands-On from Start to Finish

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