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Sun Java System Communications Application Server 1.0 |
Sun Java System Communications Application Server 1.0 adds SIP and other telecommunication technology capabilities to Sun Java System Application Server 9.1.1. Sun Java System Application Server 9.1.1 provides a Java EE compatible server for the development and deployment of Java EE applications and Java Web Services. Key features include scalable transaction management, container-managed persistence runtime, performant web services, clustering, high availability, security, and integration capabilities.
This page contains the following topics:
Sun Java System Communications Application Server is developed as a layer on top of Sun Java System Application Server 9.1.1. While it supports all the features available in Sun Java System Application Server, it has also got a host of new features as listed below.
Compliant with
JSR 116 and JSR 289
Sun Java System Communications
Application Server contains a SIP stack that is compliant with RFCs
3261, 3262, 3265, 3311, 3515, 3903, etc. It will also expose the SIP
Servlets Java APIs defined by JSR 116 and JSR 289. The JSR 289
container will be integrated to Sun Java System Communications Application Server as a
listener to the Tomcat container.
Converged SIP and HTTP Sessions
Sun Java System Communications Application Server supports converged HTTP and SIP session functionality as defined
by JSR 289 and JSR 116.
Integrated SIP
Servlet Container
The SIP Servlet container offers the following functionality:
The SIP Servlet Container works in conjunction with the Web Container to provide support for converged applications as defined by the SIP Servlet API Specification ( SSA)
Security
Digest Authentication is supported for both HTTP and SIP protocols. P-Asserted-Identity
is supported for SIP protocol. The SIP Container is enhanced to
support SIPS over TLS.
Session Replication for SIP
and HTTP Sessions
Session replication capability in Sun Java System Communications
Application Server supports both SIP and HTTP sessions.
Converged Load
Balancer
Converged Load Balancer (CLB) is a software load
balancing component, which facilitates high availability of converged
applications, by distributing the application requests in a cluster of server
instances.
The CLB provides the following functionality:
Support to Deploy SIP and Converged Applications
Sun
Java System Communications Application Server
supports deployment of pure SIP applications and converged applications using the
extension-module mechanism in GlassFish. It also supports sun-sip.xml as
the Sun-specific deployment descriptor for SIP applications.
NetBeans Tooling
Sun Java System Communications Application Server provides
support for SIP Servlet applications based on JSR 289 on top of
NetBeans 6.0. A simple SIP client will be added to enable testing at development time. This
plug-in will be provided via the NetBeans Update Center.
Hot Deployable Application Router
Sun Java System Communications Application Server
supports hot deployment of Application router archives (JAR files)
using the extension module mechanism. An application router that follows a
simple alphabetical rule for routing the requests is provided by
default. JSR 289 specification describes semantics of a default application router, which
will be provided as well.
Enhancements for
supporting a SAF based management framework.
The administration and management framework
is enhanced so that an external management framework (for example, a
SAF based tool) will be able to manage the Application Server at a
steady state. This capability translates to the ability to start
and stop application server instances and to start and stop
applications in the server instances by passing DAS (domain
administration server) and node agent. The watchdog functionality of the node agent will also be
in use, since in the steady state, the node agent will not be running. Note
that this is not the default behavior of the Application Server, but are
enhancements to allow a management framework to achieve the described
functionality. The newly filed JSR 319 is aiming for standardization in this space.
Packaging and File Layout
Sun Java System Communications Application Server is being delivered as a
file-based installable and also as an addon package. The file layout
preserves the Application Server layout with overlays for SIP servlets
support.
Java EE 5 platform support: Sun Java System Application Server 9.1.1 complies fully with the latest Java EE 5 specification to deliver one of the best application runtimes for next-generation enterprise applications and web services. Application Server 9.1 implements and extends the following Java EE standards:
Web Services Interoperability Technologies (WSIT)
Support
Sun is working closely with Microsoft to ensure interoperability of Web
services enterprise technologies such as message optimization, reliable
messaging, and security. The initial release of WSIT is a product of
this joint effort. WSIT is an implementation of a number of open web
services specifications to support enterprise features. In addition to
message optimization, reliable messaging, and security, WSIT includes a
bootstrapping and configuration technology. Starting with the core XML
support currently built into the Java platform, WSIT uses or extends
existing features and adds new support for interoperable web services,
including:
Java Business Integration (JBI) Support
JBI extends Java EE with business integration Service Provider
Interfaces (SPI). These SPI enable developers to create or implement a
Java business integration environment for specifications such as WSCI,
PBEL4WS and the W3C Choreography Working Group. A JBI implementation is
installed directly by the Application Server installer, mostly in the AS_HOME/jbi
directory. This directory contains all common JAR files and system
components for the JBI including a lifecycle
module that
starts
the JBI framework in the Application Server JVM.
In-Memory Replication Support
In-memory replication on other servers provides lightweight storage of
session state data without the need to obtain a separate database, such
as HADB. This type of replication uses memory on other servers for high
availability storage of HTTP session and stateful session bean data.
Clustered server instances replicate session state in a ring of
topology. Each backup instance stores the replicated data in memory.
Replication of session state data in memory on other servers enables
sessions to be distributed. The use
of in-memory replication requires the Group Management Service (GMS) to
be enabled.
Usage Profiles Support
Every administrative domain is associated with a usage profile which
identifies the capabilities of that domain. Application Server 9.1
provides the following profiles:
Load Balancing Enhancements
Several enhancements have been added to the load balancing plugin
including:
weight
has been added to the instance Loadbalancer.xml
file. This option enables the load balancer plugin to route requests
according to the weight. For example, for every 500 requests, 100 will
go to instance1
and 400 would go to instance2
. The default weight is 100.
The weight is
assigned to each instance from the Administration Console or
command-line. In addition, the server domain.xml
file
identifies an attribute for every instance indicating the weight.
loadbalancer.h
,
which is placed in appserv_install_dir/lir/install/templates/
.
loadbalancer.xml
file be manually copied to the particular server's config
directory. Application Server 9.1 includes push automations for
performing such copies between the Web Server and the Application
Server. The load balancer itself is configured in the server's domain.xml
file.
Open Source and GlassFish Community
In June 2005, Sun launched the GlassFish community
with the goal of developing a free, open source, commercial-grade
application server that implements the newest features of the Java EE 5
platform and related enterprise technologies. Application Server 9.1 is
based on the source code developed by Sun engineers and the GlassFish
community.
Feedback Submittal Form: Use the Java EE SDK Feedback Submittal Form to submit feedback on this product.
Glassfish Community: Application Server is developed through the Glassfish open source project and community. The GlassFish community is building a free, open source application server which implements the newest features in the Java EE 5 platform.
Java Enteprise Community: Part of java.net, the Java Enteprise Community is centered around Java EE applications, components, and tools.
Sun Technology Forums: The Sun Developer Forums are interactive message boards for sharing knowledge and questions about technologies and programming techniques. Use the Application & Integration Servers forum for discussions related to the Application Server.
Sun Software Support Service: Sun Software Support Service Standard contracts are available for purchase.
Sun Developer Network: For further help and to keep on top of the latest developments, join the Sun Developer Network.
BigAdmin System Administrator Resources and Community: Join this System Administration Portal to learn more about the Sun Java System Application Server Platform Suite which includes the Application Server.
Release Notes and Product Documentation: The Release Notes, Installation Notes, and other product documentation are posted on docs.sun.com.
Data sheets, press information, news, and other information are available at the Sun Java System Application Server home page.
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