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GemStoneJ 3'0 Objects Across the Enterprise

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Browsers or Java clients. GemStone/J. CORBA. JDBC. CORBA. Distributed. JavaBeans. Web Server ... servers and operating systems (Netscape, Microsoft IIS, Apache) ... – PowerPoint PPT presentation

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Title: GemStoneJ 3'0 Objects Across the Enterprise


1
GemStone/J 3.0 Objects Across the Enterprise
  • Paul Chambers
  • Chief Technical Officer (Europe)

2
Scalable Enterprise Architectures
  • GemStone/J Overview
  • GemStone/J Architecture Fundamentals
  • GemStone/J Service Activator
  • Web Integration Architecture
  • Security Architecture
  • Architectural Issues

3
GemStone/J Overview
4
What is GemStone/J
  • An integrated Java Application Server
  • Designed for 3 tier transactional Java
    applications built with components
  • Java VM and runtime with significant value added
  • Implicit Java object persistence
  • For application control and meta-data
  • For shared data caches
  • For extending relational and mainframe data
  • Integrates middleware and component technologies
    such as J2EE, EJB and CORBA
  • Supports development and deployment of large,
    complex business applications in Java

5
GemStone/J Usage Architecture
Browsers or Java clients
Web Browser (HTML)
CORBA
Distributed JavaBeans
HTTP
(Various)
CORBA
Web Server
GemStone/J
Legacy
3 tier Java applications Complex object
models Rapidly changing applications Distributed
architectures Integration of multiple technologies
JDBC
6
GemStone/J Architecture Fundamentals
7
GemStone/J 3.0 Architecture
8
GemStone/J System Architecture
Clients
GemStone/J
External Data Servers
IIOP
ORB
Java
Java
JDBC
Gem
Web Service
IIOP
Java
JavaVM
Service Activator
Beans
JDBC
HTTP
GemStone/J VMs
Web Server
(TCP/IP)
Transaction Monitor
Web Browser or Java VM
Garbage Collector
Extents
9
GemStone/J 3.0 Java and CORBA Standards
  • JDK 1.2 APIs
  • JSA
  • JCA
  • JCE
  • SSL
  • X.509
  • Complete EJB 1.0 container and server
  • Session and Entity beans
  • Container and Bean- managed persistence

Business Applications
Enterprise JavaBeans Containers
  • JMAPI
  • JDMK
  • SNMP
  • JDBC 1.0
  • JDBC 2.0
  • JDBC XA

Collections
Security
Data Connect
Scaling
Management
Naming
Messaging
Transactions
  • JDNI
  • COS Naming Service
  • JDK 1.2 Collections

Enterprise Services APIs
  • JMS

Object Transaction Monitor
  • JTS
  • JTA
  • COS OTS
  • OTS recovery
  • XA

Service Activator
  • CORBA location forwarding
  • CORBA / EJBservice activation

GS/J VM
Persistent Cache
ORB
  • JDK 1.2
  • Java Compatible certified
  • Runs any 100 Pure Java app.
  • JVMDI debugger interface
  • Sun.tools.debug
  • CORBA 2.3
  • IIOP

Planned for future release as specifications
become complete
10
GemStone/J Java VM
  • Java 1.2 certified Java Compatible
  • Server-optimized VM
  • Robust and reliable
  • Large object domains
  • Scalable shared memory architecture
  • Multiple concurrent GS/J transactions
  • Sun HotSpot technology licensed and being
    integrated for later release

11
Persistent Cache Architecture
Java Virtual Machines
Shared Object Memory
Object Repository
12
Persistent Cache Architecture (PCA)
  • Provides fault-tolerant object cache of
    relational data for increased performance
  • Supports large object domains up to 2 billion
    objects
  • Provides automatic EJB persistence
  • Scalable implementation of Java 1.2 collection
    interfaces
  • Dynamic growth to millions of elements
  • High-performance sorted collections and maps
  • Classes for multiple-writer concurrent update

13
Integrated All Java CORBA Implementation
  • CORBA 2.3 ORB
  • Load-balanced service activation
  • Persistent Name Service
  • COS Naming Service and JNDI interfaces
  • IDL generation for CORBA client access to EJBs
  • IDL compiler
  • OTS implementation (GemStone/J OTM)

14
GemStone/J OTM
  • Implements CORBA Object Transaction Service (OTS)
    standard
  • Integrated recovery mechanism
  • Logging for 2-phase distributed transaction
    support
  • JTS interface
  • OTS 1.1 Synchronization interface
  • Provides transaction support for EJBs
  • Integrates with other OTS implementations
  • Provides cache coherency between persistent cache
    and relational database

15
Complete Enterprise JavaBeans 1.0 Server
  • Session and Entity Beans
  • Container-managed persistence and Bean-managed
    persistence
  • Tunable load-balanced EJB activation mechanisms
  • Declarative and client-initiated distributed
    transactions through GemStone/J OTM
  • Java, CORBA and Web clients can create and invoke
    EJBs
  • Java 1.2 security APIs tightly integrated

16
GemStone/J 3.0 The EJB Container
  • A context within which to run Beans
  • Containers exist within EJB servers
  • Manage
  • Pools of Beans
  • Bean lifecycles
  • Interfaces between clients and beans
  • Manages state (bean managed)
  • Threads for beans
  • Communication to EJB server for lower-level
    services

EJB Container
17
GemStone/J 3.0 The EJB Server
  • Low-level infrastructure to manage containers
  • Services provided by server
  • Distributed, transactional VMs
  • ORB
  • Java object persistence
  • Java services
  • Security
  • RDB connectivity
  • Mainframe connectivity
  • State management
  • Resource management

GemStone/J 3.0 Application Server
18
GemStone/J OTM
OTSCoordinator
GS/J VMs
EJBs
Recovery Coordinator
OTS Resource
OTS Resource
JDBC Pool
GS/J Session Pool
Transaction Log
RDBMS
OTSCoordinator
Other Transactional System
19
Service Activator
Internet Commerce Platform Components, Workflow,
EAI
GemStone/J Application Server
Object Transaction Monitor
EJB Container
Servlet Engine
Web Server
Java 2 Security
Java 2 Services
Service Activator CORBA ORB Persistent Cache
GS/J VM
  • Handles growth of application (new features,
    upgrades)
  • Handles coordinated business transactions across
    many different data sources and business
    processes.

20
GemStone/J Service Activator Central to
Scalability
  • Dynamically activated service objects
  • EJB Session and Entity beans
  • CORBA server objects
  • GemStone/J sessions
  • Pooled resources
  • VMs, including multiple machines
  • GemStone/J sessions
  • JDBC connections
  • Service object instances
  • Configurable, tunable operation
  • Location of services in VMs
  • Size and dynamics of pools
  • Loading of VMs
  • Integrated Java security

21
GemStone/J Service Activator
JDBC connection pools
GemStone/J session pools
EJBs CORBA objects
Clients
RDBMS
Service Activator
22
Multi-Machine Architecture
Service Activator
Clients
Persistent Cache
Server 1
RDBMS
Clients
GemStone/JVM Pool
Server 2
23
Web Integration Architecture
24
Servlet Engine
Business Process Engine
GemStone/J Application Server
Object Transaction Monitor
EJB Container
Servlet Engine
Web Server
Java 2 Security
Java 2 Services
Service Activator CORBA ORB Persistent Cache
GS/J VM
  • Handles Growth of users (Internet access)
  • Handles growth of application (new features,
    upgrades)

25
J2EE Component Models Today
  • EJB 1.0 Today
  • Full EJB 1.0 Server and Container capabilities
    integrated
  • Session and Entity beans
  • DD Utilities
  • IDE DD and JAR file support
  • Java Server Pages and Servlets Today
  • Integrated Servlet engine
  • Comprehensive load balancing
  • Connectivity to standard Web servers
  • Access to all GemStone/J services

Java Server Pages
Servlets
26
User Scaling
  • Servlet engine integrated.
  • Supports all major Web servers
  • Standard security supported

GemStone/J 3.0 Application Server
GemStone/J VMs
Servlet Engine
Web Server
  • Web servers
  • Netscape
  • Microsoft IIS
  • Apache

27
Integrated Web Scalability
GemStone/J
DNS Round-Robin
Load Balancing
RDBMS
Connection Pooling
RDBMS
Web Servers
Web Clients
  • Netscape
  • Microsoft IIS
  • Apache

28
Scalable Web Architecture
  • Servlet engine integrated (JSP, Java Servlet API)
  • Supports all major Web servers and operating
    systems (Netscape, Microsoft IIS, Apache)
  • Standard security in the Web architecture
  • Web integration partners

29
Application Scaling
  • Provides comprehensive load balancing
  • Distributed HTTP session state
  • Web server to GS/J load balancing
  • Server-side JDBC connection pools
  • Provides access to all GS/J coordinated
    transaction services
  • JDBC, EJB, CORBA, PCA, OTM, Pooling mechanisms

GemStone/J VM
OTM
JDBC Pooling
EJBs
CORBA
PCA
30
GS/J VMs
DNS RR
HTTP /
TCP
Web client
Web client
Web Server
Third Tier Data
Web client
The web servers are load-
GS/J
balanced at the
Repository
internal DNS agent.
Web client
HttpSession State Business logic/Objects
The servlet engines are load
balanced in
a round-robin fashion at the
web server.
Web client
Web Server
Web client
31
GemStone/J Security Architecture
32
Strong Security Reduces Risks
  • Authentication
  • Authorization Containment
  • Secure Communication
  • Security Administration
  • Who is accessing your data
  • Restrictions
  • Private exchange
  • Control over system

33
GemStone/J Security End-to-end Enterprise Java
Security
  • Authentication embedded in all communications
  • Standard X.509 digital certificates
  • Public Key Infrastructure supported
  • Authorization built into EJB server, ORB, name
    services, system processes, administrative
    components
  • Access Control Lists for secure resources
  • User-, method-, code-level containment, based on
    industry standards, EJB, and Java 2
  • NA and International SSL 3.0 is supported
  • Console tool and utilities for configuring
    security

34
Strong Security Requires Thorough Integration
AUTHENTICATION Passwords Keys Digital
Signatures Message Digests Certificates
(x.509) LDAP
AUTHORIZATION Permissions - User -
Resources - Code

Containment - Sandbox - ACL - Domains - Firewalls
SECURE COMM SSL
Confidentiality - Encryption - Keys
SECURITY ADMINISTRATION
Non-Repudiation - Transaction logging and
reporting
Admin Tools - Add/modify users - Add/mod
permissions - Manage certificates - Configure -
Audit
Auditing - Error Logging - Error Reporting
35
Comprehensive Security in GemStone/J
GemStone/J 3.0
System Administration
System Resources
System Resources
36
Security in the Web architecture
  • Basic and X509 authentication
  • SSL support in all communications
  • Firewall support

GemStone/J 3.0
FIREWALL
SSL
SSL
SSL
SSL
RDBMS
Web Clients
Web Servers
37
Architectural Issues in the near future
  • Architectural Patterns that
  • realize scalability
  • preserve cache coherency
  • preserve component object models
  • incorporate Web, CORBA, RMI JMS mechanisms
  • Component to object mapping or EJB to RDB mapping
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