NAME
Net::Flickr::RDF - a.k.a RDF::Describes::Flickr
SYNOPSIS
use Net::Flickr::RDF;
use Config::Simple;
use IO::AtomicFile;
my $cfg = Config::Simple->new("/path/to/my.cfg");
my $rdf = Net::Flickr::RDF->new($cfg);
my $fh = IO::AtomicFile->open("/foo/bar.rdf","w");
$rdf->describe_photo({photo_id => 123,
secret => 567,
fh => \*$fh});
$fh->close();
DESCRIPTION
Describe Flickr photos as RDF.
This package inherits from *Net::Flickr::API*.
OPTIONS
Options are passed to Net::Flickr::Backup using a Config::Simple object
or a valid Config::Simple config file. Options are grouped by "block".
flickr
* api_key
String. *required*
A valid Flickr API key.
* api_secret
String. *required*
A valid Flickr Auth API secret key.
* auth_token
String. *required*
A valid Flickr Auth API token.
rdf
* query_geonames
Boolean.
If true and a photo has geodata (latitude, longitude) associated
with it, then the geonames.org database will be queried for a
corresponding match. Data will be added as properties of the photo's
geo:Point description. For example :
-122.025151
16
visbility
37.417839
public
PPLX
US
CA
California
Santa Clara
2
Default is false.
*
Boolean.
If true, the trynt colour extraction web service will be queried
with the URL for the "medium" sized photo. Each colour will be added
as it's own description, referenced from the photo's principal
description. For example :
c0c0c0
654
Default is false.
PACKAGE METHODS
__PACKAGE__->new($cfg)
Where $cfg is either a valid *Config::Simple* object or the path to a
file that can be parsed by *Config::Simple*.
Returns a *Net::Flickr::RDF* object.
PACKAGE METHODS YOU MAY CARE ABOUT
__PACKAGE__->build_photo_uri(\%data)
Returns a URL as a string.
__PACKAGE__->build_geo_uri(\%data)
__PACKAGE__->build_user_tag_uri(\@data)
Returns a URL as a string.
__PACKAGE__->build_global_tag_uri(\@data)
Returns a URL as a string.
__PACKAGE__->build_user_uri($user_id)
Returns a URL as a string.
__PACKAGE__->build_group_uri($group_id)
Returns a URL as a string.
__PACKAGE__->build_grouppool_uri($group_id)
Returns a URL as a string.
__PACKAGE__->build_photoset_uri(\%set_data)
Returns a URL as a string.
__PACKAGE__->prune_triples(\@triples)
Removes duplicate triples from *@triples*. Returns an array reference.
OBJECT METHODS YOU SHOULD CARE ABOUT
$obj->describe_photo(\%args)
Valid arguments are :
* photo_id
Int. *required*
* secret
String.
* fh
File-handle.
Default is STDOUT.
Returns true or false.
OBJECT METHODS YOU MAY CARE ABOUT
$obj->collect_photo_data($photo_id,$secret)
Returns a hash ref of the meta data associated with a photo.
If any errors are unencounter an error is recorded via the log method
and the method returns undef.
$obj->collect_group_data($group_id)
Returns a hash ref of the meta data associated with a group.
If any errors are unencounter an error is recorded via the log method
and the method returns undef.
$obj->collect_user_data($user_id)
Returns a hash ref of the meta data associated with a user.
If any errors are unencounter an error is recorded via the log method
and the method returns undef.
$obj->collect_photoset_data($photoset_id)
Returns a hash ref of the meta data associated with a photoset.
If any errors are unencounter an error is recorded via the log method
and the method returns undef.
$obj->collect_cc_data()
Returns a hash ref of the Creative Commons licenses used by Flickr.
If any errors are unencounter an error is recorded via the log method
and the method returns undef.
$obj->collect_comment_data()
Returns a hash ref of comments made about a photo.
$obj->make_photo_triples(\%data)
Returns an array ref (or alist in a wantarray context) of array refs of
the meta data associated with a photo (*%data*).
$obj->make_user_triples(\%user_data)
Returns an array ref (or list in a wantarray context) of array refs of
the meta data associated with a user (*%user_data*).
$obj->make_tag_triples(\@tag_data)
Returns an array ref (or list in a wantarray context) of array refs of
the meta data associated with a tag (*@tag_data*).
$pkg->make_photoset_triples(\%set_data)
Returns an array ref (or list in a wantarray context) of array refs of
the meta data associated with a photoset (*%set_data*).
$obj->make_geo_triples(\%geo_data)
$obj->make_geonames_triples(\%geo_data)
$obj->make_group_triples(\%group_data)
Returns an array ref (or list in a wantarray context) of array refs of
the meta data associated with a group (*%group_data*).
$obj->make_grouppool_triples(\%group_data)
Returns an array ref (or list in a wantarray context) of array refs of
the meta data associated with a group pool (*%group_data*).
$obj->make_cc_triples($url)
Returns an array ref (or list in a wantarray context) of array refs of
the meta data associated with a Creative Commons license (*$url*).
$obj->make_comment_triples(\%data)
Returns an array ref (or alist in a wantarray context) of array refs of
the meta data associated with a photo comment (*%data*).
$obj->geodata_from_tags(\%data)
Try to parse out geolocative data from a collection of tag data.
Returns a hash ref (containing 'lat' and 'long' keys) on success or
undef if there were no matches.
$obj->namespaces()
Returns a hash ref of the prefixes and namespaces used by
*Net::Flickr::RDF*
The default key/value pairs are :
a http://www.w3.org/2000/10/annotation-ns
acl http://www.w3.org/2001/02/acls#
atom
http://www.w3.org/2005/Atom/
cc http://web.resource.org/cc/
dc http://purl.org/dc/elements/1.1/
dcterms
http://purl.org/dc/terms/
exif
http://nwalsh.com/rdf/exif#
exifi
http://nwalsh.com/rdf/exif-intrinsic#
flickr
x-urn:flickr:
foaf
http://xmlns.com/foaf/0.1/#
geo http://www.w3.org/2003/01/geo/wgs84_pos#
geoname
http://www.geonames.org/onto#
i http://www.w3.org/2004/02/image-regions#
rdf http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs
http://www.w3.org/2000/01/rdf-schema#
skos
http://www.w3.org/2004/02/skos/core#
trynt
http://www.trynt.com#
ymaps
urn:yahoo:maps
$obj->namespace_prefix($uri)
Return the namespace prefix for *$uri*
$obj->uri_shortform($prefix,$name)
Returns a string in the form of *prefix*:*property*. The property is the
value of $name. The prefix passed may or may be the same as the prefix
returned depending on whether or not the user has defined or redefined
their own list of namespaces.
Unless this package is subclassed the prefix passed to the method is
assumed to be one of prefixes in the default list of namespaces.
$obj->api_call(\%args)
Valid args are :
* method
A string containing the name of the Flickr API method you are
calling.
* args
A hash ref containing the key value pairs you are passing to
*method*
If the method encounters any errors calling the API, receives an API
error or can not parse the response it will log an error event, via the
log method, and return undef.
Otherwise it will return a *XML::LibXML::Document* object (if
XML::LibXML is installed) or a *XML::XPath* object.
$obj->log()
Returns a *Log::Dispatch* object.
$obj->serialise_triples(\@triples,\*$fh)
Print *@triples* as RDF/XML to a filehandle (*$fh*). If no filehandle is
defined, prints to STDOUT.
$obj->serialize_triples(\@triples,\*$fh)
An alias for *serialise_triples*
VERSION
1.96
DATE
$Date: 2006/11/19 21:52:31 $
AUTHOR
Aaron Straup Cope
EXAMPLES
CONFIG FILES
This is an example of a Config::Simple file used to collect RDF data
from Flickr
[flickr]
api_key=asd6234kjhdmbzcxi6e323
api_secret=s00p3rs3k3t
auth_token=123-omgwtf4u
RDF
This is an example of an RDF dump for a photograph backed up from Flickr
:
-122.417068
visbility
37.7742
2005-08-02T18:12:19-0700
20050802(007).jpg
public
2005-08-02T18:16:20-0700
Square
75
75
california
6065-30763528-8400103
2005-08-02T18:52:23
moooaahahaahahmooo
b2310525591ca71b1cb9c2e3226dec1765d76c1e
karlcow
326 181 97 25
Did you see that this shirt makes me a beautiful breast?
9 205 145 55
Do you want my opinion? There's a love affair going on here… Anyway. Talking non sense. We all know Heather is committed to Flickr. She even only dresses at FlickrApparel. Did they say "No Logo". Doh Dude.
Flickr
00d5b413e52b4d7d35dc982102c49e930a0ef631
George Oates
George
355 31 103 95
(Yes… I love you heather, you are my dream star)
usa
california
geotagged
san francisco
sanfrancisco
479d12dec2090705278d8b2af2c50ac2c46b94d4
heather powazek champ
heather
geotagged
Medium
375
500
geolat377742
202 224 50 50
dude! who did this?
cameraphone
a4d1b5e38db5e2ed4f847f9f09fd51cf59bc0d3f
Aaron Straup Cope
straup
468 141 22 26
*sigh*
usa
cameraphone
32
100/100
1250
1280
336/100
960
4.5 mm
2005-08-02T18:12:19PDT
sRGB
f/3.2
2005-08-02T18:12:19PDT
4321/1000
0.05 sec (263/5260)
High gain up
357 193 81 28
eww!
sanfrancisco
6065-30763528-8399772
2005-08-02T18:44:52
"you have been note-spammed by a passing mad cow..."
:)
Small
180
240
geolong122417068
184 164 50 50
Baaaaarp!
Thumbnail
75
100
433 103 50 50
(fuck… fuck…)
e0d207bb5643d4d7dd60e72d4ce2a94bae0e13b6
Boris Anthony
bopuc
geolong122417068
aaronland
geolat377742
Original
960
1280
342 197 28 33
Is that just one big boob, or...?
SEE ALSO
Net::Flickr::API
RDF::Simple
TO DO
* Methods for describing more than just a photo; groups, tags, etc.
* Update bounding boxes to be relative to individual images
* Proper tests
Patches are welcome.
BUGS
Please report all bugs via http://rt.cpan.org/
LICENSE
Copyright (c) 2005-2006 Aaron Straup Cope. All Rights Reserved.
This is free software. You may redistribute it and/or modify it under
the same terms as Perl itself.