Architecture and Extension Points

From RSSOwl

Contents 1 Plugins 2 org.rssowl.core 3 org.rssowl.ui 4 Interesting Extension Points provided by RSSOwl 5 Extension Points provided by Eclipse

Plugins

• org.rssowl.contrib.nntp - Contributes newsgroup support (optional)
• org.rssowl.contrib.search - Contributes Lucene and full-text-search capabilities
• org.rssowl.core - Core functionality (see description below)
• org.rssowl.core.tests - A suite of JUnit 4 tests
• org.rssowl.lib.db4o - The db4o database storing the model
• org.rssowl.lib.httpclient - Apache HTTPClient for connections to the internet
• org.rssowl.lib.jdom - JDom for transforming XML into the model
• org.rssowl.ui - User Interface functionality (see description below)

org.rssowl.core

• org.rssowl.core.connection
  • Knows how to connect to the internet and retrieve data
  • Manages credentials for Authentication and Proxy Connections

• org.rssowl.core.interpreter
  • Knows how to parse a XML file using Xerces and JDom
  • Interprets the JDom model as newsfeed and converts it to the RSSOwl Model

• org.rssowl.core.model
  • Provides a class for each model type being used in RSSOwl 2
    • Simple Class Diagram
  • Implements persistence using db4o

org.rssowl.ui

• org.rssowl.ui.internal.actions
  • Actions perform a certain task and appear in various parts of the UI

• org.rssowl.ui.internal.editors.feed
  • The Feed-Editor is displaying a newsfeed's headlines together with its content in a Browser

• org.rssowl.ui.internal.views.explorer
  • The Bookmark Explorer allows to manage bookmarks, saved searches and folder in a Tree

Interesting Extension Points provided by RSSOwl

• ElementHandler
  • Override the Interpreter for a specific Element in the XML document

• FormatInterpreter
  • Teach the Interpreter a new format
  • Example: The result of a web-service should be displayed as feed in RSSOwl 2

• NamespaceHandler
  • Teach the Interpreter a certain namespace that is used widely
  • Example: Implement the iTunes namespace being used for podcast feeds

• ProtocolHandler
  • Add a whole new protocol to the list
  • Example: Let RSSOwl 2 show Mails or Newsgroups like newsfeeds

• entityPropertyPage
  • Add property pages to Bookmarks, Saved Searches or Folders

Extension Points provided by Eclipse

• org.eclipse.ui.actionSets
  • Add new items to the Menu or Toolbar in RSSOwl 2

• org.eclipse.ui.preferencesPages
  • Add new preferences pages to RSSOwl 2

• org.eclipse.ui.views
  • Add new Views to RSSOwl 2
  • Example: Add a view that allows to manage podcasts in a comfortable way