Transcript Sao Paulo ICT-OSA/Parlay Workshop 2006

OSA/PARLAY TRAINING SESSION
Mårten Lundgren M.Sc
System Developer
Service Layer Development Ericsson AB
[email protected]
The overall agenda
 Morning
– OSA/Parlay Development
– Benefits using Parlay and Parlay X
 Afternoon
– OSA/Parlay exercises
– Parlay X exercises
 All of you interested in joining the afternoon session are
welcome to copy the teaching material as soon as
possible to save time later on.
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OSA/Parlay Agenda
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Examples of Parlay Services
Some market potential
Fundamentals of Parlay application development
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Summarization
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Key factors for “killer” services
A Parlay application development process
 Know the possibilities
 Identify a need
 Develop the service
- Use Case
- Sequence
- Pattern
- Structure
- Lifecycle
- Test and Tools
 Deploy
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Some service examples…
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Ringtones
Televoting
Logos
Image sharing
Voicemail
Blogging
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U
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Conference Calls
Alarms
Lookups
Service Ordering
…etc
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Market potential
The Chinese new year holiday of 2006 generated 12.6 billion sent SMS messages. [Source: Interfax China IT &
Telecom Report, 2006]
Penetration of unique individuals in Latin America with mobile wireless access will increase from 27% to 41%
between 2004-9. [Source: Yankee Group, January 2006]
[Source: Yankee Group, January 2006]
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Market potential
Forecast split of mobile service revenue in Western Europe by broad
service category, 2003–9 [Source: Analysys Research, 2004]
100%
90%
80%
70%
Mobile content
60%
Other non-voice
50%
Voice
40%
30%
20%
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2009
2008
2007
2006
2005
2004
0%
2003
10%
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Motivation – Why get involved?
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HTML for the WWW
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Global availability
“Access to anywhere,
whenever”
Fat clients (PC)
Often fixed
Getting access to the bank in
the middle of the night.
Parlay for the Telecom
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Personal availability
“Access to anywhere,
whenever from wherever”
Thin clients (Phone)
Often portable
Getting access to the bank in
the middle of the night in a
taxi from the airport.
Mobility adds a new dimension for service creation!
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How to create the next killer service?
 Need for a foundation consisting of:
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technology competence
ingenuity
clear roles
joined effort
process understanding
visibility
joined effort
clear roles
ingenuity
Deploy
technology
Know the
possibilities
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Reach out
Develop
service
Identify
need
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Know the possibilities
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Parlay specifications:
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Framework (access and authentication)
Call Control (voice)
User Interaction (SMS, MMS, WAP, email)
Mobility (geographic location, general status)
Terminal Capabilities (phone features)
Generic Messaging (message system)
Charging (payment)
Data Session Control (typically GPRS session management)
Connectivity Manager (quality of service, virtual private network)
Account Management (charging event notification)
Presence and Availability Management (status on various devices)
Multi-Media Messaging (voice mail, email, multimedia)
Policy Management (policy enabled network access)
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Know the possibilities
 Parlay X specifications:
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Third Party Call (application generated calls)
Call Notification (call information)
Short Messaging (sms)
Multimedia Messaging (mms)
Payment (charging)
Account Management (balance information)
Terminal Status (state of terminal)
Terminal Location (geographic position)
Call Handling (rule management)
Audio Call (playing audio)
Multimedia Conference (group “broadcasts”)
Address List Management (user group management)
Presence (messaging availability)
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Know the possibilities
 Locate Operator / Service Enabler
– List supported Parlay services
– Get the preferred Gateway Supplier resources
 Locate Gateway Supplier
– Get compliance statement from current Gateway Supplier
– Get Parlay SDK (API, Simulators, Examples)
 Choose implementation specifics
– Programming language
– Good IDE (Borland JBuilder, Eclipse, Visual Studio .NET)
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Identify a need
 Innovate on mobility as a key differentiator
 Reuse existing resources and technologies (simple
solutions may yet be very powerful)
 Limit the service dependency – service by service
approach
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Develop service
 Consider various PGW vendors for their support in:
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Code libraries, Application Program Interfaces (APIs)
Test tools, Simulators, Emulators
Documentation, Guides, Trainers
Parlay Standard compliance
Partnership program availability
Example applications
Access to online forums and customer support
Certification
 Access standard specifications and download IDL
(Parlay) or WSDL (Parlay X) files to generate code
stubs.
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Deploy
 To mass market and/or to target a specific PGW /
Operator
 Network protocol considerations
 Visibility to the end user (how to promote service)
 Visibility for the developer (who are buying)
 Visibility for the operator / service enabler (who are
selling)
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A Parlay example - Foundation
 Know the possibilities:
– Parlay User Interaction (SMS & MMS)
– Parlay Mobility (User Location)
 Identify a need:
– Hard to find somewhere to eat (mobility)
 Develop service:
– Java development on Eclipse using the Ericsson Network
Resource Gateway Software Development Kit.
 Deploy:
– Local Swedish operator agrees to become the “first offer”
customer.
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A Parlay example – Use Case
 Sending SMS to a service number will return a MMS
with directions for the nearest restaurant that matches
the criteria of the search. User can then optionally
decide to call the restaurant to make reservations.
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Parlay example – Sequence
Consumer
PGW
Application
1. create notification
2. send sms
2. report notification
3. get user location
4. report user location
5. get info
5. send mms
6. receive mms
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Parlay example – Patterns
GUI
IpApp_XX
Configuration
Main
Feature
IpApp_XX_Adapter
XX_Processor
Ip_XX
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Parlay example – Structure
IpAppUIManager
_IpAppHosaUIManagerImplBase
GUI
SMSProcessor
-gui
Main
-feature
-smsProcessor
-feature
Feature
MMSProcessor
-mmsProcessor
-feature
-framework
ConnectionMgr
-ulProcessor
LocationProcessor
Framework
_IpClientAPILevel
AuthenticationImplBase
_IpAppUserLocationImplBase
IpAppUserLocation
IpClientAPILevel
Authentication
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Parlay Gateway Access
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application server(s)
application
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Parlay/OSA
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service(s))
framework
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service capability server(s)
6(+)
MM7
PAP
SMPP
SMTP
MMC
WAP
GW
SMSC
EMAIL
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Parlay Gateway – Lifecycle
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Restaurant analogy
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Where do you want to eat? (IP on port?)
Request menu (Get PGW services)
Call on waiter (Chose service manager)
Order food (Send service request)
Receive food (Receive response)
Eat food (Perform action on response)
Start all over again (optional)
Pay and leave (Dispose resources
and disconnect)
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Initialization
phase
Execution
phase
Termination
phase
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Parlay example - Initialization
 Getting access to services
Application
Framework
1: initiateAuthentication
2: selectEncryptionMethod
3: authenticate
4: authenticationSucceeded
5: authenticate
6: authenticationSucceeded
7: requestAccess
8: obtainInterfaceWithCallback
9: obtainInterface
10: discoverService
11: selectService
12: initiateSignServiceAgreement
13: signServiceAgreement
14: signServiceAgreement
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Parlay example – Execution
Application
PGW
1: createNotification
 Create notification
2: reportNotification( )
3: extendedLocationReportReq( )
4: extendedLocationReportRes( )
 Sending requests
5: hosaSendMessageReq( )
6: hosaSendMessageRes
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Parlay example – Termination
 Disposing resources and ending access
Application
HosaUIService
Framework
1: destroyNotification
2: terminateServiceAgreement (HOSA UI)
3: terminateServiceAgreement (UL)
4: endAccess
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Develop service – Test and Verification
 Many tools available from many different vendors
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PGW Simulators
Network simulators
Example applications
Programmer Guides
Demonstrational tools
Code libraries / Utility classes
Test labs
Meetings and Seminars
Web based forums / Mailing lists
Partnership programs
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Tools available from Ericsson
 Ericsson Network Resource Gateway Software
Development Kit
– http://www.ericsson.com/mobilityworld/sub/open/technologi
es/parlay/index.html
– Includes
 Parlay Simulator with integrated Network Simulator
 Automated Test Tool
 Example applications for various Parlay services
 API libraries
 Standards and Specifications
 Forum
 Ericsson Partnership Program
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Demo of the example application
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Deployment
Operator Domain
(safe)
The Internet
(potentially unsafe)
Trusted Applications
Parlay/OSA
“In house” Applications
© Ericsson AB 2006
Third Party Applications
PGW
Parlay/OSA
Parlay/OSA
GSM
Firewall
IP
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GPRS
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Summorization
 Market is still growing for services and it is a huge
market.
 Parlay adds a new dimension of mobility to application
development = new and exiting possibilities!
 Learning what the Parlay services are about is the first
threshold to overcome (join this afternoon session!).
 Pick an choose tools from many vendors.
 Any software developer can start making Parlay
applications today!
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PARLAY & PARLAY X BENEFITS
Part One:
General Parlay / Parlay X benefits
Agenda Parlay and Parlay X benefits
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IT and Telecom
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Cross dependencies between the players in the telecom industry
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Some background
Current problem
Parlay and Parlay X as solutions
The importance of cooperation
Some roles at a glance
Application Developer – definition and key benefits
Network Operator – definition and key benefits
Service Provider – definition and key benefits
End User (Consumer) – definition and key benefits
Summarization
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IT and Telecom
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Traditionally two very different kinds of “beast”
Many standards and rapid changes
More and more going through the same wire
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TV
WWW
Telephony
“All in one” approach wanted by the consumer
Richer services, more personalized and interactive
Easy for the consumer, complex for the developer
Higher development costs since more complex systems
Overlap between old and new systems
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Application environment
Applications
Applications
Servers
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Availability of different interfaces
(versions) on the AS
Multiple integration
Hard to reuse
Expensive maintenance and updates
SMPP
MM7
SMS-C
© Ericsson AB 2006
MMC
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PAP
WAP GW
SMTP
Email
Server
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Application environment
Applications
Applications
Servers
Parlay
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Availability of different interfaces
(versions) on the AS
Multiple integration
PGW
Hard to reuse
Expensive maintenance and updates
SMPP
MM7
SMS-C
© Ericsson AB 2006
MMC
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PAP
WAP GW
SMTP
Email
Server
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Benefit for the whole industry
 Public interface to access the telecom network
resources (availability)
 Any IT application on any telecom network (portability)
 “Off-the-shelves” market
– computer components (ATX standard) analogy
– batteries analogy
 Definition of roles and business processes  Key actor
specialization
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Cross dependencies
clear requirements
Application Developer
Service Provider
enhanced services
easier implementation
loyalty
Parlay / Parlay X
easier maintenance
increased traffic
richer services
Network operator
Consumer
cheaper traffic
LESS TEAMWORK = LESS BENEFIT
© Ericsson AB 2006
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Application Developer
 Definition
– Software oriented innovator and creator of stable and easy
manageable services for the telecom community
 Rights
– Limit requirement scope together with Service the Provider
and decide technology consideration together with the
Network Operator.
 Responsibilities
– Must verify and test implementation as agreed with the
Service Provider and Network Operator
© Ericsson AB 2006
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Application Developer
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Parlay / Parlay X benefits
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© Ericsson AB 2006
Simple
 Effortless startup - easy to learn!
- Notifications, Requests and Responses
 No need for telecom specific knowledge
- CAPv2, CAPv3, CS1, CS1+, SIP are available only
for voice communication
- Learn one! That’s enough!
 Similar pattern for all Parlay and Parlay X services
- Shared common data (TpAddress)
 Common programming language of choice
- IDL/WSDL generation
 Less code – easier debugging
- Full set API’s, Utility classes simplify reoccurring
events
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Application Developer
 Parlay / Parlay X benefits
– Powerful
 Access to capabilities new to the IT industry
- positioning
- availability / access
 Wide variety of intuitive mappings towards available
telecom services
- Location, Status, Messaging, Voice,
Charging…
– Stable
 Create once, run anywhere
 Isolation from network changes
- Farewell spaghetti code!
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Application Developer
 Parlay / Parlay X benefits
– Revolutionizes the developer possibilities
 Less operator dependency
 Free market, everyone’s invited!
 Free development tools = small risks = low costs!
 Possible to develop a new service for your mobile
phone within days instead of weeks
 True integration of IT and Telecom
© Ericsson AB 2006
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Network Operator
 Definition
– Infrastructure oriented enabler of stable and accessible
services for the telecom community
 Rights
– Determine access distributed in the system
– Runtime and maintenance considerations
 Responsibilities
– Authorization, Availability, Authentication
© Ericsson AB 2006
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Network Operator
 Parlay / Parlay X benefits
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© Ericsson AB 2006
Popular services increase traffic
Increased traffic equals higher revenues
Easier maintenance with presumably fewer bugs
Statistical information of the traffic
Simple control over network resources
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Service Provider
 Definition
– Market analyzer close to the telecom service consumer
 Rights
– Decides requirements together with the Application
Developer and the Network Operator
– To receive fully tested and verified service solutions that are
persistently available to the consumer
 Responsibilities
– Discover needs and foresee future expectations
© Ericsson AB 2006
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Service Provider
 Parlay / Parlay X benefits
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Less development costs
Faster time to market
New types of services, increased level of interaction
New markets
Increased customer loyalty
Business monitoring and surveillance through statistics
Business rules (load etc.)
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Consumer
 Definition
– User of the telecom system, predominantly uninterested in
the technology and implementation specifics
 Rights
– Stable and accessible services at justified prices
 Responsibilities
– Financier of the telecom network system maintenance,
operating costs and research and development.
© Ericsson AB 2006
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Consumer
 Parlay / Parlay X benefits
– Timelier deliveries
 World Cup in football
– Fuller range of personalized services
– Richer, more satisfying experience
– Cheaper services (??)
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Summarization
 An “off-the-shelves” solution makes common sense!
 Need for a teamwork understanding of the telecom
industry
 Definition of once role(s) is the first step to become true
specialists in a certain area – too broad scope may
slow down progress
 Lot of benefits throughout the telecom community –
biggest risk is that networks will not open up
 Parlay is the standard to make this happen
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PARLAY & PARLAY X BENEFITS
Part Two:
Parlay and Parlay X at a comparison
Agenda Parlay and Parlay X overview
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Web Services
Fitting Parlay X into the picture
Technologies overview
Comparison between Parlay and Parlay X
Simple working example
Summarization
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Web Services
 Web services, in the general meaning of the term, are
services offered by one application to other applications
via the World Wide Web.
 Clients of these services can aggregate them to form an
end-user application, enable business transactions, or
create new Web services.
 In a typical Web services scenario, a business application
sends a request to a service at a given URL using the
SOAP protocol over HTTP. The service receives the
request, processes it, and returns a response.
© Ericsson AB 2006
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Web Services
 Web services are software components that
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Are described and found using XML technologies
Can be accessed with standards-based internet protocols
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 HTTP
 HTTPS
 SMTP
Exchange XML-formatted data
 Client and service may be implemented with different
languages on different hardware and software platforms
© Ericsson AB 2006
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Web Service technologies
 Accessing Web Services: SOAP (XML)
 Describing Web Services: WSDL
 Publishing Web Services: UDDI
Web Services vs. CORBA
 Web Service
 CORBA
– WSDL
– SOAP
– UDDI
© Ericsson AB 2006
– IDL
– IIOP
– Name Server
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XML
 Language for defining structured data
 Example...
<customer>
<firstname>Johan</firstname>
<lastname>Svensson</lastname>
<birthday>1967-04-09</birthday>
</customer>
© Ericsson AB 2006
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SOAP
 Simple Object Access Protocol
– XML-based message format
– Defines a message between the sender and an ultimate
receiver
 possibly via intermediaries
– Envelope
 Header
 Body
– Headers can be targeted at certain intermediaries
– The SOAP message transfer is done by another underlying
protocol. HTTP is standardized but SMTP and other are
possible
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SOAP – the envelope metaphor
Functional
aspects
SOAP
-- --- - -- - -- - -- -- -- - --- -- --- -- -- -- -- ---- - -Send MMS to User X
--- --- - -- - -- - -- -- -- - --- -- --- -- -- - -- -- ---- - -
Application
Write letter
(Application)
Send request
Post letter
(Platform)
1
Euro
Msg: 1:2
TransId: 352
To: Vodafone
From: Yahoo
Verified by: Verisign
Approved by: User X
Non-functional
aspects
© Ericsson AB 2006
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Read letter
(Application)
Receive request
Receive letter
(Platform)
Authentication
Authorization
Confidentiality
Integrity
Privacy
Transaction (Coordinated)
Reliable
…
Maybe payments?
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SOAP
SOAP Envelope
 Message structure
SOAP Header
Information individually
targeted for
intermediaries and
end points
SOAP Body
Information for
the ultimate receiver
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WSDL
 Web Service Description Language
– Describes what a service does
 Available operations
 Input and output messages
– How a service is accessed
 Data encoding format
 Protocols supported
 Where a service is located
 Service endpoint URL
 In our case the Parlay X WSDLs are standardized and
downloadable from internet (e.g. www.parlay.org)
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UDDI
 Universal Description, Discovery and Integration
 Registry for businesses and their Web Services
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Name of business
Contact information
Type of business
Interfaces (WSDL)
Access information (URL)
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Parlay X
 A set of simple Web Services
 Simple and high level access
to widely used telecom functions
 Aimed at Web developers
Number of developers
Parlay-X
Thousands
Parlay/OSA
 Leading to:
– A principle: Keep Interface
Specifications Simple
– “Limited” sets of building
blocks for web developers
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Voice & data
protocols
Hundreds
Network detail
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Parlay overview
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application
Parlay/OSA
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service(s))
service capability server(s)
framework
MM7
PAP
SMPP
SMTP
MMC
WAP
GW
SMSC
EMAIL
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Parlay X overview
W
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application server(s)
application
Parlay X
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5(+)
application server(s)
application
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6(+)
Parlay/OSA
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service(s))
framework
3
service capability server(s)
7(+)
MM7
PAP
SMPP
SMTP
MMC
WAP
GW
SMSC
EMAIL
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Parlay and Parlay X compared
 Parlay
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© Ericsson AB 2006
 Parlay X
More complex
More complete functionality
CORBA based
Publish/Find via Parlay
Framework
SLA/Policy negotiation via
Parlay Framework
–
–
–
–
Authentication via Parlay
Framework
–
64
–
Simple
Limited functionality
Web Services based
Publish/Find via UDDI –
Industry standard
SLA/Policy negotiation via
local bind process (not the
same level)
Authentication via WSSecurity
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Parlay application development and execution
Web Services (Parlay and Parlay X)
Parlay
Java
IDE
Java/J2EE
IDE
+
+
Parlay
SDK
Parlay X
WSDL
Java Application
Java Application
Application Developer
Service Provider
and/or
Network Operator
Parlay SDK
JRE
JRE
ORB
SOAP,
RMI
CORBA
Network
Operator
Parlay
Parlay X
Parlay Gateway
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A Parlay X example
SmsSender
SmsSender
WSDL Stub
Sao Paulo / Brazil
JRE
x2
Send SMS
SOAP / HTTP
193.180.251.125:7001
Send
Network
Parlay
Parlay X
OK
Parlay Gateway
Stockholm / Sweden
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A Parlay X example
 Send SMS message
– Find the appropriate WSDL file(s) (http://www.parlay.org)
– Find a suitable WSDL compiler for the programming
language of choice (http://ws.apache.org/axis/)
– Compile the WSDL files to get the stubs and interfaces
needed to create the SOAP message
– Make certain that proper security credentials are added as
SOAP message headers (operator specific)
– Use a URL to identify where the service is located
– Invoke the service interface method to send the SOAP
message
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Parlay X benefits






No need to authenticate all requests towards the PGW
Simplified, more abstract less detailed
Easy popular functions (good enough)
Targets web based applications and Web Services
Easy network configurations (http posts)
Good tools available for WSDL stub generation (AXIS
or JWSDP)
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Summarization
 Parlay X services are Web Service components sent
by SOAP calls defined by WSDL usually over HTTP
 Main benefits are the simplification of access and
authorization
 Component based programming
 Much of the implementation is done by the WSDL
compiler that generate stubs to use in your code
 Parlay X makes network resource access faster and
simpler than ever before!
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PARLAY & PARLAY X
DEVELOPMENT TRAINING
Part One
Preparation
 Copy the parlay_training_course.zip file onto your
computer
 Unzip it to any location without spaces in the path
(C:\Documents and Settings should be avoided!)
Preferably use something similar to c:\parlay
 Disable any firewall currently active on your laptop as it
might disallow certain ports to be used
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How to work with this package
 Use runEclipse to start the Eclipse IDE.
 In Eclipse there are several projects, either for Parlay
or Parlay X that will illustrate a certain feature of the
standard.
 Each exercise has a solution. Use the solution to
compare your results but try your best before doing so.
 Each exercise will take about 30 minutes. (Some less
some more). First there will be an introduction and last
will be a summarization of the intended solution.
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How to work with this package
 Use runSimulator to start the Ericsson Network
Resource Gateway Simulator, this will act as a PGW,
phones and a network emulator on your local laptop.
 The Simulator needs to be running in order for the
Parlay applications to work.
 In order to run the Parlay X applications you need to
have an Internet access.
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Pattern
GUI
IpApp_XX
Configuration
Main
Feature
IpApp_XX_Adapter
XX_Processor
Ip_XX
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General sequence – Start Notification
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General sequence – Stop Notification
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Exercise one
 List all available services at this PGW




Get access to the PGW framework
Get a list of all services
Connect to each service
Disconnect from all services
 Illustrates: Framework access and service retrieving
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Exercise one
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Exercise one






Make sure that the Simulator is running and that you have started
Eclipse
In Eclipse right click on “Parlay_Exercises” and select “Open
Project”
Sort the tasks at the bottom of the screen after their folder name
and double click on the first one named “TODO close the
framework communication”
Your task is now to fill in the blanks in the code, you may need to
shift between Problems and Tasks to correct all blanks for an
assignment.
After filling all the gaps in the code, right click on the assignments
“Main” class and choose “Run asApplication” to run the
application.
Populate the Simulator with the right phones and follow the
instructions that show in the application window.
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Exercise two
 Create an application that sends SMS messages
towards a certain number.
 Illustrates: SendMessageReq, SendMessageRes and
SendMessageErr
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Exercise two
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Exercise three
 Finish the application that receives a SMS from a
specified friend and converts it into an MMS before
sending it onwards to the destination.
 Illustrates: Create Notification, report notification,
sending MMS MIME messages
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Exercise three
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Exercise three
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Exercise four
 Finish an application that tracks two terminals each
other second. When the terminals are within a specified
distance send SMSs to them both to indicate that the
friend is close by.
 Illustrates: extendedLocationReportReq
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Exercise five
 Finish the application that upon changing the status of
the terminal starts listening for incoming calls. If a call
is made to a terminal that is switched off a SMS will be
generated indicating that a call was missed.
 Illustrates: triggeredUserStatus
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Exercise six
 Finish the application that acts as a redirection service.
When calling the service number a message is played
and the user is prompted to choose a destination.
When typing in the destination the caller is redirected.
 Illustrates: Multiparty Call Control and User Interaction
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What Are Legs & Calls ?
Speech
Network
Marie
John
Call
Object
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What Are Network Initiated Calls?
Application
2
3
1
4
Marie
John
Network
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What Are Application Initiated
Calls?
Application
1
3
4
2
Network
Marie
© Ericsson AB 2006
John
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Exercise six
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Exercise six
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Parlay X exercise

Complete the SimpleLogoSender, SimpleMessageSender and
SimpleRingtoneSender by completing the following steps:






Create URL to identify the service
Create a locator specifically for this service
Retrieve the SMS service
Add security header information
Invoke the desired method on the remote service
Optionally get extra information from the returned correlator
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Parlay X development for Java








Download and install Java
–
http://java.sun.com/downloads/
Decide service
Download involved service WSDL files
–
–
http://www.parlay.org/en/specifications/
http://www.3gpp.org/ftp/Specs/html-info/29-series.htm
Generate client side stubs from WSDL
–
–
http://ws.apache.org/axis/java/user-guide.html
http://java.sun.com/webservices/downloads/webservicespack.html
Develop application on top of stubs
–
–
http://www.eclipse.org/downloads/
http://www.netbeans.org/downloads/
Compile and package
Deploy
Test and Verify
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