1
Introduction

This chapter describes the Hypertext Transfer Protocol (HTTP) adapter and the hardware and software requirements.

This chapter contains these topics:

HTTP Adapter Overview
HTTP Adapter System Requirements
HTTP Adapter Known Limitations

Note:
This guide provides information about installing and configuring the HTTP adapter to use either Secure Socket Layer (SSL) functionality (HTTPS) or non-SSL functionality (HTTP).

HTTP Adapter Overview

The HTTP adapter enables an HTTP application to be integrated with other applications using Oracle9iAS InterConnect. This adapter is useful in all enterprise application integration (EAI) environments that use the HTTP transport protocol. EAI is the integration of applications and business processes within the same company (known as an enterprise).

The HTTP adapter performs the following tasks:

Monitors incoming messages received in the form of HTTP requests to the HTTP adapter servlet
Sends messages to remote Web servers through a proxy host

The payload type (the data being delivered to a destination) for the HTTP adapter is one of the following:

Extensible Markup Language (XML) data
Data definition description language (D3L) data

The HTTP adapter supports HTTP versions 1.0 and 1.1. The HTTP adapter also provides SSL functionality (known as HTTPS) with Oracle JavaSSL, which uses a wallet generated from Oracle Wallet Manager. You can also select cipher suites suitable for an SSL connection. Cipher suites control the combination of encryption and data integrity used by SSL. The HTTP adapter also supports sending HTTP requests and receiving HTTP replies through a proxy server.

Figure 1-1 depicts the data flow of incoming messages (from an HTTP client to Oracle9iAS InterConnect). Incoming messages are sent to a Web server/servlet container that relays the message to an HTTP receiver in the adapter through a remote method invocation (RMI).

Figure 1-1 Incoming Messages

Text description of asiht001.gif follows

Text description of the illustration asiht001.gif

Figure 1-2 depicts the data flow of outgoing messages (from Oracle9iAS InterConnect to a remote Web server). Outgoing messages are sent from an HTTP sender object in the adapter to a remote Web server.

Figure 1-2 Outgoing Messages

Text description of asiht002.gif follows

Text description of the illustration asiht002.gif

See Also:

Oracle9i Application Server Security Guide for additional information about SSL and Oracle Wallet Manager

HTTP Adapter System Requirements

The following sections describe HTTP adapter system requirements:

Hardware Requirements

Table 1-1 lists the hardware requirements for the computer on which the Oracle HTTP adapter is to be installed.

Table 1-1 Hardware Requirements

Hardware	Windows NT/2000	UNIX
Memory	128 MB	128 MB
Service Pack	Windows NT 4.0 Service Pack 6 or later Windows 2000 Service Pack 1 or later	Not applicable
Disk Space	500 MB	500 MB

Hardware

Windows NT/2000

UNIX

Memory

128 MB

Service Pack

Windows NT 4.0 Service Pack 6 or later

Windows 2000 Service Pack 1 or later

Not applicable

Disk Space

500 MB

Software Requirements

The following sections describe HTTP adapter software requirements:

Operating System Requirements

Table 1-2 lists the software requirements for the computer on which the Oracle HTTP adapter is to be installed.

Table 1-2 Operating System Requirements

Operating System	Platform	Version
Windows NT/2000	Any	Version that supports at least 400 MHz
UNIX	IBM AIX-Based Systems	Version 4.3.3
	Compaq Tru64 UNIX	Version 5.0a/5.1
	HP 9000 Series HP-UX	Version 11.0/11i
	SUSE LINUX	Version 7.2
	Sun SPARC Solaris	Version 2.6

JRE Requirements

Oracle9iAS InterConnect uses Java Runtime Environment (JRE) 1.3, which is installed with its components.

Servlet Requirements

The HTTP adapter requires Oracle9iAS Containers for J2EE (OC4J), which is provided by Oracle9iAS. OC4J is not required to be installed on the computer on which the Oracle HTTP adapter is installed.