EBI is an Outstation of the European Molecular Biology Laboratory.

easyDAS

Automatic DAS server creation

Bernat GelUniversitat Politècnicade Catalunya

03/03/11esayDAS: Automatic DAS server creation2

DAS servers are easy

Client

Client

Client

“Smart clients, dumb servers”

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DAS servers are easy

dumb servers ?

Many groups lack abilities or facilities

Internet visible machine

Server installation/administration

Data storage management

Data access layer programming

Data uploading

“Smart clients,

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easyDAS to the rescue

Client

Client

ClientData

Generator

easyDAS

EBI datacenter

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Internet visible machine

Server installation/administration

Data storage management

Data access layer programming

Data uploading

esayDAS to the rescue

but...Loss of flexibility

Less control over the data

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Limited maximum size for a dataset

Always easyDAS?

No hard limit, but will fail if too bigSources with more than a million features

No control over the source’s stylesheet

Not feasible for base level annotations

Not yet possible to edit a source

No access to logs, so no usage statistics

Data on text files

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Always easyDAS?

Small or medium

UseeasyDAS

Not very dinamic

On text files

Needed to be persistent

Short-lived or testing

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A note on private sources

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A note on private sources

DAS is open

Sources marked as private will NOT be listed on the list

BUT

they are completely public and an accessible

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esasyDAS implementation

DB

Web Client

easyDASserver

ProServer

Sources

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easyDAS implementation

minor modifications in ProServer

http://host.tld/dir/das/features?segment=1

http://host.tld/dir/username/das/features?segment=1

every source has a separate set of tables

client is OO javscript with jQuery

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Custom easyDAS

easyDAS is an Open Source project

http://code.google.com/p/easydas/

It is possible to install on your own instittution

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Questions?

http://www.ebi.ac.uk/panda-srv/easydas/

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Questions?

http://www.ebi.ac.uk/panda-srv/easydas/