GemStone/J 3.0 Objects Across the Enterprise

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GemStone/J 3.0 Objects Across the Enterprise

• Paul Chambers
• Chief Technical Officer (Europe)

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Scalable Enterprise Architectures

• GemStone/J Overview
• GemStone/J Architecture Fundamentals
• GemStone/J Service Activator
• Web Integration Architecture
• Security Architecture
• Architectural Issues

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GemStone/J Overview
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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

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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
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GemStone/J Architecture Fundamentals
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GemStone/J 3.0 Architecture
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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
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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
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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

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Persistent Cache Architecture
Java Virtual Machines
Shared Object Memory
Object Repository
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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

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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)

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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

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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

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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
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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
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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
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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.

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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

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GemStone/J Service Activator
JDBC connection pools
GemStone/J session pools
EJBs CORBA objects
Clients
RDBMS
Service Activator
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Multi-Machine Architecture
Service Activator
Clients
Persistent Cache
Server 1
RDBMS
Clients
GemStone/JVM Pool
Server 2
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Web Integration Architecture
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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)

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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
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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

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Integrated Web Scalability
GemStone/J
DNS Round-Robin
Load Balancing
RDBMS
Connection Pooling
RDBMS
Web Servers
Web Clients

• Netscape
• Microsoft IIS
• Apache

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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

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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
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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
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GemStone/J Security Architecture
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Strong Security Reduces Risks

• Authentication
• Authorization Containment
• Secure Communication
• Security Administration

• Who is accessing your data
• Restrictions
• Private exchange
• Control over system

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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

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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
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Comprehensive Security in GemStone/J
GemStone/J 3.0
System Administration
System Resources
System Resources
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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
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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