SAP Web Application Overview

7/31/2019 SAP Web Application Overview

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Session ID: JAVA104SAP Web ApplicationServer Overview



Benny Schaich, SAP AG



Key Features

Summary

Overview & Positioning

Architecture



© SAP AG 2004, SAP TechEd / JAVA104 / 4

Addressing Companies’ Key Challenges

System Infrastructure

Heterogeneous system infrastructure

Complex processes integration








Openness – related to ABAP

Proprietary programming language








Openness – related to ABAP

Proprietary programming language

Development – related to Java

Inefficient user interface development

Time-consuming team development

and deployment

Wh t d li ti d d h d it k




Browser PDA

Internet / Intranet

(Source: Ovum)

What does an application server do, and how does it makebusiness applications better?

Application

Application

Server

Operating System

Supports

Application execution

New application development

Integration of services

e-business applications

Gives business applications

Reliability Scalability

Availability

Security

Adaptability




Business Requirements drive Technology Advances

Technology Advances

B u s i n e s s R e q u i r e m e n t s

Enterprise Services Architecture

SAP NetWeaver

3-Tier Client/Server

R/3 Basis

Mainframe Arch.ABAP

Mainframe

Client/server

Web Services

Integratedprocesses

Adaptive

processes

Scalable

processes

X R

e p l a

c e

E x t e n

d

The SAP Web AS pro ides a common fo ndation for




The SAP Web AS provides a common foundation for SAP NetWeaver

The Web Application Server is

the complete infrastructure to

develop, deploy and run:

All SAP NetWeaver

components

mySAP Business Suite

Customer-developed

applications

3rd

-party Java 2—EnterpriseEdition-compliant

applications

Integrates the proven ABAP and

the innovative internet-drivenJava technology in one

application server

SAP NetWeaver™

CRM

mySAP Business Suite

BW EP XI MI MDM

Web Application Server

ERP SRM

Java ABAP

Application Platform SAP Web Application Server




Application Platform – SAP Web Application Server Key benefits

Openness

Supports open standards

Web services capabilities

out of the box

Reliability

Scalability

Security

Low Cost of Ownership

Common installation +administration

Software lifecycle

management

SAP Web Application Server

SAP NetWeaver™

C o m p o s

i t e A p p l i c a t i o n F r a m e w o r k

PEOPLE INTEGRATION

Multi channel access

Portal Collaboration

INFORMATION INTEGRATION

Bus. Intelligence

Master Data Mgmt

Knowledge Mgmt

PROCESS INTEGRATION

Integration

Broker

Business

Process Mgmt

APPLICATION PLATFORM

J2EE

DB and OS Abstraction

ABAP

L i f e C y cl eM gm t

…

Brings together the benefits of a proven, scalable and reliable infrastructure

with the interoperability and flexibility of Web Services technology




SAP Web

Application Server

2000 2002 2003

Native Web Technology

■ Server-side scripting■ Native HTTP/XML support

Openness

■ Full J2EE support

■ Web Services (WSDL, SOAP, UDDI)6.10

6.20

SAP Web Application Server evolution

2004

Java Development

■ Java IDE

■ Web Dynpro

6.30

Leverage Processes

■ Software Lifecycle M.

■ ABAP enhancements

6.40




SAP Web Application Server is based on open standards

Fully J2EE certified

Web services for standards-based

communication

SAP NetWeaver Developer Studio is

based on the Open Source Eclipseframework

SAP participates in the

Java Community Process

SAP is a founding member of the

Web Services Interoperability

Organization (WS-I)

SAP is a UDDI Business Registry

node operator




SAP Web Application Server: Customer Success

Medical patient data management system

(~400 db tables, JDO, Swing clients)

Emissions Management(xApp, Web Dynpro)

License Management System

(EJB2.0, JMS, Web Services, Servlet/JSP)

Several high-load web applications

(EJB2.0, Clustering)

Biller Direct 2.0(~70000 named users, Servlet/JSP, JCo)

<german telco company>

SAP W b A li ti S U i Diff ti t




SAP Web Application Server – Unique Differentiators

Enterprise-scaled, platform-independent, application

server with both Java and ABAP in one integrated andflexible architecture

Leverages more than 15 years experience in

application server development

Web Dynpro for professional

UI development

Database-independent persistence

framework

Highly efficient development environment

for team development

Integrated security, administration, and

software lifecycle management



Key Features

Summary


Architecture

SAP W b A li ti S




Shared benefits

Multi tier architecture Highly scalable and reliable

Platform independence

Common connectivity

Different protocols (SOAP,HTTP, SMTP, RFC, FTP)

Advanced caching

Sophisticated persistence

Database independence

Caching

Efficient development environment

Professional UI Web Dynprodevelopment

Proven ABAP development toolsShared facilities

Comprehensive Standard-basedWeb Services infrastructure

Integrated SAP GUI for HTML


Persistence

Connectivity

Internet Communication Manager

Database Abstraction

Browser /Portal 3rd party apps /exchange infr.

ABAP

Workbench

Developer

Studio

Presentation / Business

Web Dynpro

Java / ABAP

Web Services


Platform Strategy




Platform Strategy

Supports Your Platform

Operating systems:

Windows, Linux, HP-UX, AIX, Solaris, OS/400, z/OS,

Tru64

DBMS: SAP DB, Oracle, DB2,

MS SQL Server

Browsers: Microsoft IE,

Netscape Navigator

Provides Platform Independence

SAP Web Application Server shields applications

from OS and DBMS specifics

Web Dynpro shields applications from browser and

device specifics

New Cluster Architecture for Java




New Cluster Architecture for Java

Design goals for the new Architecture

Better Scalability

Performance

Manageability

Reuse of robust SAP basetechnology

Better Integration into the

classical SAP Web AS

Reuse know-how and codingfrom “Web AS classic”

Use a central DB as

configuration and application

store Use the Enqueue as reliable

lock handler

Use the Message Server as

message hub

Web AS Central Host

Central Instance

Java

J2EE

Dispatcher

SDM

ABAP

ICM

Server

Processes

Database Instance

J2EE Schema

ABAP Schema

EnqueueService

MessageService

J2EE Central

Services

Dispatcher

EnqueueService

Gateway

MessageService

Server

Processes

N O W

S h i p p

i n g !

High Availability for SAP Web AS




Replicated

enqueue cluster CI

repl.

enqueue

Cluster or standby

DB. DB reconnect

DB

High Availability for SAP Web AS

Load balancing(SAP GUI)

Web

Disp.

Web

Disp.

Transparent

load

balancing

No single point of

failure

DB

Appl.

Server

Multiple applicationservers

Appl.

Server

Appl.

Server

CIMessage

Server

Enqueue

Server



Key Features

Summary


Architecture

Web AS ABAP Features – Highlights




Comprehensive Infrastructure

Development and Lifecycle Infrastructure

Integrated ITS

Ease your system infrastructure

Web Services

Comprehensive Standard-based Infrastructure

Process forms (pdf - Powered by Adobe )

Documents get printed, e-mailed, archived or faxed

Outlook

Web Dynpro for ABAP (NetWeaver 2005)

Interactive Forms

Web AS ABAP Features – Highlights

SAP NetWeaver Development Advantages




SAP NetWeaver Development Advantages

Development Process

Automatic configuration of local development environments

Build Process

Easy, automatic consolidation of local developments

Deployment Time-consuming deployment into test systems

Persistence and DB Access

DB independent SQL statements, non hard-coded

Large Development Projects Faster build and repair cycles, high development system

availability, software componentization

Modification and Upgrade

Easy change of existing applications, more flexibility

User Interface

Efficient support for professional development

More than J2EE!




More than J2EE!

To adopt J2EE for large business applications, SAP

… extended the programming model

… integrated existing non-J2EE open standards

… provides a highly productive development infrastructure

Presentation Layer

Business Layer

B u s i

n e s s A p p l i c a

t i o n

Integration

Layer

Servlet JSP

EJB

Persistence

JDBC Open SQL

Web Dynpro

Web Services

SQLJ

Java

Dictionary

Software

LifeCycle

SAP NetWeaver Developer Studio




SAP NetWeaver Developer Studio

Java

Web

Services

Web

DynproJ2EE

JDI

Portal

Dev. Kit

Integration Framework

Eclipse Plugin Framework

Extensible and open IDE

based on open sourceframework Eclipse

Graphical and easy-to-use

tools

Web Services Tools for

connectivity based on open

standards

Web Dynpro Tools for model-

driven UI design

Development infrastructure

support

Portal Development Kit

UML design

Java Development InfrastructureEffective Java Development Process




Effective Java Development Process

SAP Developer

Studio

Develop, build,

and test locally

Design Time

Repository

Java

sources

Data

types

Check out all

requiredcomponents

Check-in

changes

Component

Build service

Archivepool

Instant

minimal

component

build

OK?Activate

CentralJ2EE server

Software

DeploymentManager

Central

integration

test

Web Dynpro – Professional Browser-based User Interface




y p

Declarative

Comprehensive Personalization Accessibility

Internationalization

Professional

Reuse of components

Separation of UI design and business logic

Arbitrary backends (ABAP, Java, Web Service)

Device independent

Tool based design

Model-View-Controller architecture

Browser based, zero footprint

Screen updates w/o page reloads

Web Dynpro – Component Based UI Design




y p p g

Web Dynpro Component

View

Predefined UI Elements

Constitute the look & feel

Build-In functions in UI

Elements

Controller

Graphical Navigation flow

Graphical Data flow –

automatic data transport

Model

ABAP

Java

Web Services

Graphical modeling tools replace

code editors

more design, lessmaintenance

View

UI Elements

Navigation

Controller

ModelWeb Service

JavaABAPDB

Data

SAP NetWeaver Developer Studio – Web Dynpro Tools




Application Scenarios with Web Dynpro




Java

Web Dynpro

Runtime

Java

Web Dynpro

Runtime

Web Dynpro

App

Web Dynpro

AppWeb Dynpro

App

Web Dynpro

App

Web Browser Web Browser

XML

SAP

NetWeaver Developer

Studio

SAP

NetWeaver Developer

Studio

ABAP

Web Dynpro

Runtime

ABAP

Web Dynpro

Runtime

Web Dynpro

AppWeb Dynpro

App

ABAP WorkbenchABAP Workbench

Conversion

of existingdynpros

Conversion

of existingdynpros

Java

BackendServer

Java

BackendServer

BackendApplicationBackend

Application

ABAP

BackendServer

ABAP

BackendServer

Web Service

Provider

Web Service

Provider

Web

Service

Web

Service

BusinessData

BusinessData

BusinessData

Business

API (BAPI)EJB (e.a.)EJB (e.a.)

Open SQL for Java




DB

Access

Layer SQL Trace

Statement Cache

SQL

Processor Table Catalog

Table Buffer

Vendor-specific JDBC Driver

Database

Connection Pool

O p en S QL E n gi n e

“native”

“vendor”

“open”

JDBC (J2EE)SQLJ JDOEJB CMP (J2EE)

Relational Persistence (SQL) Object Relational Persistence

Web services based on Open Standards




StandardInterfaces

Virtual Interface

Business

Application

I D O C

B

AP I

R

F C

E

J B

J

av a C l a s s

X

I S er v er

P

r ox y


UDDIUDDI

Registry

WS

Client…

SOAP

WSDL

Development Environment

Web Service Consumer

Web serviceProxy

Web service ClientApplication

Web Service Runtime

Web Service Provider

SOAP

Web Services Connect the Modern Enterprise




SAP NetWeaver™

Cross Platform Intra Enterprise

Cross Platform Inter Enterprise

UDDI

SAP .Net J2EE

Supplier

SAP .Net J2EE

Customer

SAP .Net J2EE

Marketplace

SAP .Net J2EE

Other

SAP

CRM

SAP SAP

HCM PLM

Web Services

C o m

p o s i t e A p p l i c a t i o n F r a m e w o r k

L i f e C

y cl eM gm t

PEOPLEINTEGRATION

INFORMATION

INTEGRATION

PROCESS

INTEGRATION

APPLICATION

PLATFORM

Web Service Security

Future: Virtual Machine Container




Robustness (reduce the impact of a crashed VM)

Reduce the memory footprint

Fast session failover

Shared request queues

Integration The new architecture has to be compatible with NW’04

Reduce the memory footprint of additional Worker Nodes

Shared Byte Code

Shared Caches

Decrease the number of internal threads

Fix amount of threads for processing requests

Defined parallelism and separated thread pools

Fast Session Failover

Using shared memory instead of file system and DB

Future: VMC – Reducing Memory Consumption




30MB - Native Layer

128MB – Byte Code

120MB – Framework

200MB – Caches

30MB - Native Layer

128MB – Byte Code

Shared

120MB – Framework

80MB – Private Caches

ca. 500MB private

120MB – Shared Caches

ca. 250MB private

ca. 250MB shared

Standard VM VMC JDK

Example: Portal Scenario

Estimated memory savings:

50% of the framework are

shared

Example: 4CPUs / 4GB NW’04

3 server nodes

1GB Heap for each node

total 3GB memory usage

Future Release

6 server nodes

1GB shared

300 MB framework 700 MB sessions

300MB Heap for each node

total 3GB memory usage



Key Features

Summary


Architecture

Summary




Scalable and reliable component platform

Supports development and operations of J2EE-based and

ABAP-based Web applications and Web services

Contributes SAP’s experience in large developmentprojects to the J2EE idea

Embraces native Web technologies

Provides the benefits of the proven and scalable data,

system, and software lifecycle management that SAP is

known for

SAP Developer Network




Look for SAP TechEd ’04 presentations and videos on

the SAP Developer Network.

Coming in December.

http://www.sdn.sap.com/

Questions?




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