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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 Oracle Application Server InterConnect (OracleAS 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 OracleAS InterConnect). Incoming messages are sent to a servlet, provided by the HTTP adapter, that relays the message to an HTTP receiver in the adapter through a remote method invocation (RMI).

Figure 1-1 Incoming Messages

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Figure 1-2 depicts the data flow of outgoing messages (from OracleAS 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

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See Also:

Oracle 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	UNIX
Memory	128 MB	128 MB
Disk Space	500 MB	500 MB

Software Requirements

The following sections describe HTTP adapter software requirements:

Operating System Requirements

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

Table 1-2 Operating System Requirements

Operating System	Version
Windows NT	Version 4.0 with Service Pack 6 or above
Windows 2000	With Service Pack 1 or above
IBM AIX 5L	5.1 and 5.2 (64 bit)
HP Tru64	5.1a and 5.1b (64 bit)
HP-UX	11.0 and 11.11 (64 bit)
Red Hat Linux	Advanced Server 2.1
Sun SPARC Solaris	8 and 9 (32 bit)

JRE Requirements

OracleAS InterConnect uses Java Runtime Environment (JRE) 1.4.1, which is installed with its components.

Servlet Requirements

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