A New Application Framework Design

Document Purpose

This document is intended to introduce a high level design of an application framework for the Apache Open for Business project.

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Overview

The application framework will be written in Java and it will provide the basic structure to write an application. The framework will provide the following basic functionality:

• Configuration.
• Globalization (locale, time zone, currency).
• Logging.
• Security (authentication/authorization).
• Actor Management (profiles, roles - required for security; Actors - people, external services) Think of UML Actor. Required to remove dependency on Party
• Persistence (file system or database).
• Lang package to provide classes that are fundamental to the framework
• Services.
• Runtime management.

Design Goals

• Single jar file.

• Compact, small memory footprint.
• Scalable from SBCs to enterprise-class ERP systems.
• Reuses existing technologies.

• Easy to configure and maintain.

  Design Participants Note

  Please take some to watch this presentation by Joshua Bloch: How to Design a Good API & Why it Matters.

Basic Architecture

Configuration

• Library: OFBiz Configuration
• Java package name: org.apache.ofbiz.foundation.config

Globalization

• Library: IBM ICU4J
• Java package name: org.apache.ofbiz.foundation.globalization

Logging

• Library: SLF4J

Security

• Library: Apache Shiro, OFBiz
• Java package name:org.apache.ofbiz.foundation.security

Actor Management

• Library: OFBiz
• Java package name: org.apache.ofbiz.foundation.actor

Persistence

• Library: OFBiz Entity Engine
• Java package name: org.apache.ofbiz.foundation.persistence

Services

• Library: JMS, Quartz Scheduler
• Java package name: org.apache.ofbiz.foundation.service

Lang - Data Types

• Library: Apache Commons Lang, Apache Commons Convert, OFBiz
• Java package name: org.apache.ofbiz.foundation.lang

Cache

• Library: eHCache
• Java package name: org.apache.ofbiz.foundation.cache