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AkonadiThe KDE4 PIM Framework

Tobias Koenig

KDE Akademy 2006 – p.

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Overview

• Why a new PIM Framework

• Akonadi

⊲ History⊲ Concepts

⊲ Current State

⊲ The Future

• Questions & Answers

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Problems with old Framework

• Bad Performance

• Synchronous Access

• Memory Consumption

• Missing Notifications

•

Missing Locking

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Akonadi

• A general storage for PIM data

• Aims to solve the problems of kabc/kcal

• Modular design for robustness and easy integration

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History

• First ideas of a PIM daemon at Osnabrück meeting2005

• Sample code for address book daemon• General agreement for PIM service at Osnabrück

meeting 2006

• ’Akonadi’ was born

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Concepts

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Concepts

Storage

 Agent (Resource)

 Agent (Resource)

Control

 DBus-Interface

 Akonadi Server

 IMAP-Interface

Search- Provider

Search-

 Provider

       l       i       b     a       k     o     n     a       d

       i

       l       i       b       k     c     a       l

       l       i       b       k     a       b     c

 Application

Component

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The Storage

• Accessible via extended IMAP=> high performance on data delivery

• Caches all PIM items of the resources(depending on the policy)

• Informs the Control about changes

• Provides basic search features (IMAP)

• Delegates extended search requests toSearchProviders

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The Resources

• Applications which synchronize data between theStorage and an external data source

(e.g. groupware server or file)• Asynchronous communication

• Profiles for grouping Resources together

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The Control

• Starts and monitors the Storage and resourceprocesses

• Provides D-Bus API for managing resources andprofiles

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The SearchProviders

• External applications which process more complexsearch queries

• One SearchProvider for every PIM item type• Store search results in collections inside the Storage

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Collections

• Virtual containers inside the Storage

• Contain PIM items/references

• Root collection ’/’

• Every Resource provides at least one collection

•

Easy to realize virtual folders / 

 /resource1

 /resource1/calendar /resource1/addressbook

 /resource2

 /search

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Current State

KDE Akademy 2006 – p.

C S

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Current State

• Storage

⊲ Provides all needed IMAP commands

⊲ Stores items in Collections• Control

⊲ Lifetime management for Storage and Resources

⊲ D-Bus API nearly completed

• Resources

⊲ Simple iCalendar file

⊲ Dummy resource ’Knut’

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Demo...

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TO DO

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TO DO

• Implementing SearchProviders(mail, calendar, address book)

• Defining asynchronous client library• Implementing full featured resources

(remote and local file)

• Writing documentation!!!

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The Future

KDE Akademy 2006 – p.

The Future

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The Future

• Goal: Components based PIM library

• Components as standalone views and editors of PIM

data• Plasma applets for calendar and address book

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We need developers!

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Questions?

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Thank you

KDE Akademy 2006 – p.