cmf.coffeesrc/ | |
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The CMF module communicates to the ConnectMe Media Framework (CMF) back-end Usage of all methods: var cmf = new CMF("http://connectme.salzburgresearch.at/CMF"); cmf.getVideos(function(err, videos){ // The callback gets always two parameters: err, result. if(err){ console.error("Error getting video list from the back-end", cmf.url); return; } console.info("Videos succesfully loaded:", videos); }); | class window.CMF
constructor: (@url) ->
@url = @url.replace(/\/$/, '') + '/' |
Get the list of all videos stored on the CMF server | getVideos: (resCB) ->
res = []
query = @_videosQuery
@_runSPARQL(query, resCB)
_videosQuery: """
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
PREFIX oac: <http://www.openannotation.org/ns/>
PREFIX yoovis: <http://yoovis.at/ontology/08/2012/>
SELECT DISTINCT ?instance ?title ?thumbnail
WHERE {
?instance a mao:MediaResource.
OPTIONAL {?instance mao:title ?title.}
?instance yoovis:hasThumbnail ?thumbnail.
}
ORDER BY ?instance""" |
Get the list of all annotated videos stored on the CMF server | getAnnotatedVideos: (resCB) ->
query = @_annotatedVideosQuery
return @_runSPARQL(query, resCB)
_annotatedVideosQuery: """
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
PREFIX oac: <http://www.openannotation.org/ns/>
PREFIX yoovis: <http://yoovis.at/ontology/08/2012/>
SELECT DISTINCT ?instance ?title ?thumbnail
WHERE {
?instance a mao:MediaResource.
OPTIONAL {?instance mao:title ?title.}
?instance mao:hasFragment ?fragment.
OPTIONAL {?instance yoovis:hasThumbnail ?thumbnail.}
?annotation a oac:Annotation.
?annotation oac:hasTarget ?fragment.
?annotation oac:hasBody ?body
}
ORDER BY ASC(?title)""" |
Wrapper for both | getAnnotationsForVideoOrLocator: (url, resCB) ->
res = []
waitfor = 2
cb = (err, annotations) ->
if err
console.error err, annotations
resCB err, annotations
return
res = res.concat annotations
waitfor--
if waitfor is 0
resCB null, res
@getAnnotationsForLocator url, cb
@getAnnotationsForVideo url, cb |
Wrapper for both | getLocatorsForVideoOrLocator: (url, resCB) ->
res = []
waitfor = 2
cb = (err, annotations) ->
if err
console.error err, annotations
resCB err, annotations
return
res = res.concat annotations
waitfor--
if waitfor is 0
resCB null, res
@getVideoLocators url, cb
@getAllVideoLocators url, cb |
The use of the rest of the methods is not necessary because all functionalities are covered and generalized by the more convenient methods above | |
Get annotations for a video's CMF resource uri | getAnnotationsForVideo: (resource, resCB) ->
res = []
query = @_annotationsForVideo(resource)
@_runSPARQL(query, resCB)
_annotationsForVideo: (resource) -> """
PREFIX oac: <http://www.openannotation.org/ns/>
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
PREFIX cma: <http://connectme.at/ontology#>
PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>
SELECT DISTINCT ?annotation ?fragment ?resource ?relation ?type ?prefLabel ?latitude ?longitude
WHERE {
<#{resource}> mao:hasFragment ?f.
?f mao:locator ?fragment.
?annotation oac:hasTarget ?f.
?annotation a ?type.
OPTIONAL{?annotation cma:preferredLabel ?prefLabel.}
OPTIONAL{?resource geo:lat ?latitude.}
OPTIONAL{?resource geo:long ?longitude.}
?annotation oac:hasBody ?resource.
?f ?relation ?resource.
}
""" |
Get annotations for a video's locator uri | getAnnotationsForLocator: (locator, resCB) ->
res = []
query = @_annotationsForLocator(locator)
@_runSPARQL(query, resCB)
_annotationsForLocator: (locator) -> """
PREFIX oac: <http://www.openannotation.org/ns/>
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
PREFIX cma: <http://connectme.at/ontology#>
SELECT DISTINCT ?annotation ?fragment ?resource ?relation ?type ?prefLabel
WHERE {
?videoresource mao:locator <#{locator}>.
?videoresource mao:hasFragment ?f.
?f mao:locator ?fragment.
?annotation oac:hasTarget ?f.
?annotation oac:hasBody ?resource.
?annotation a ?type.
OPTIONAL{?annotation cma:preferredLabel ?prefLabel.}
?f ?relation ?resource.
}""" |
Get video locators for a video's CMF resource uri | getVideoLocators: (resource, resCB) ->
res = []
query = @_getVideoLocators(resource)
@_runSPARQL query, (err, res) ->
unless err
typeRegexp = new RegExp /\.(.{3,4})$/
locators = _(res).map (l) ->
if l.source.value.indexOf("<crid") <0
type = l.type?.value or "video/#{ l.source.value.match(typeRegexp)[1] }"
return source: l.source.value, type: type
resCB err, locators
_getVideoLocators: (resource) -> """
PREFIX oac: <http://www.openannotation.org/ns/>
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
SELECT DISTINCT ?source ?type
WHERE {
<#{resource}> mao:locator ?source.
OPTIONAL {?source mao:hasFormat ?type}
FILTER regex(str(?source), "(http|https)")
}
ORDER BY ?source""" |
Get all video locators for any of a video's locators | getAllVideoLocators: (locator, resCB) ->
res = []
query = @_getAllVideoLocators locator
@_runSPARQL query, (err, res) ->
unless err
typeRegexp = new RegExp /\.(.{3,4})$/
locators = _(res).map (l) ->
if l.source.value.indexOf("crid") <0
type = l.type?.value or "video/#{ l.source.value.match(typeRegexp)[1] }"
return source: l.source.value, type: type
resCB err, locators
_getAllVideoLocators: (locator) -> """
PREFIX oac: <http://www.openannotation.org/ns/>
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
SELECT DISTINCT ?source ?type
WHERE {
?resource mao:locator <#{locator}>.
?resource mao:locator ?source.
OPTIONAL {?source mao:hasFormat ?type}
FILTER regex(str(?source), "(http|https)")
}
ORDER BY ?source"""
getLSIVideosForTerm: (keywordUri, resCB) ->
res = []
query = @_getLSIVideosForTerm keywordUri
@_runSPARQL query, (err, res) ->
resCB err, res
_getLSIVideosForTerm: (keywordUri) -> """
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT DISTINCT ?video ?duration ?description ?locator ?title ?img
WHERE {
?video mao:hasKeyword <#{keywordUri}> .
?video a <http://www.w3.org/ns/ma-ont#VideoTrack> .
OPTIONAL {?video mao:description ?description}.
?video mao:locator ?locator .
OPTIONAL {?video mao:duration ?duration}.
?video mao:title ?title .
OPTIONAL {?video foaf:img ?img}.
}
ORDER BY ?video """ |
# | _getLSIVideosForTerm: (keywordUri) -> """
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT DISTINCT ?video ?duration ?description ?locator ?title ?img
WHERE {
?s <http://connectme.at/ontology#hasRelatedVideo> ?video .
?s <http://www.w3.org/ns/ma-ont#hasKeyword> <#{keywordUri}> .
OPTIONAL {?video mao:description ?description}.
?video mao:locator ?locator .
?video mao:duration ?duration.
?video mao:title ?title .
OPTIONAL {?video foaf:img ?img}.
}
ORDER BY ?video """ |
# | getLSIImagesForTerm: (keywordUri, resCB) ->
res = []
query = @_getLSIImagesForTerm keywordUri
@_runSPARQL query, (err, res) ->
resCB err, res
_getLSIImagesForTerm: (keywordUri) -> """
PREFIX mao: <http://www.w3.org/ns/ma-ont#>
SELECT DISTINCT ?image
WHERE {
?image a <http://www.w3.org/ns/ma-ont#Image> .
?image mao:hasKeyword <#{keywordUri}> .
}
ORDER BY ?image """
getGRDataForTerm: (keywordUri, resCB) ->
res = []
query = @_getGRDataForTerm keywordUri
@_runSPARQL query, (err, res) ->
resCB err, res
_getGRDataForTerm: (keywordUri) -> """
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX gr: <http://purl.org/goodrelations/v1#>
PREFIX vCard: <http://www.w3.org/2001/vcard-rdf/3.0#>
PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>
SELECT DISTINCT ?name ?street ?pcode ?city ?country ?telephone ?email ?description ?geoLat ?geoLong ?pricevalue ?pricecurrency ?product
WHERE {
<#{keywordUri}> gr:legalName ?name.
<#{keywordUri}> vCard:ADR ?address.
?address vCard:Street ?street.
?address vCard:Pcode ?pcode.
?address vCard:City ?city.
?address vCard:Country ?country.
?address vCard:TEL ?tel.
<#{keywordUri}> geo:lat ?geoLat.
<#{keywordUri}> geo:long ?geoLong.
?tel rdf:value ?telephone.
?address vCard:EMAIL ?em.
?em rdf:value ?email.
<#{keywordUri}> gr:offers ?offer.
?offer rdfs:comment ?description.
?offer gr:hasPriceSpecification ?price.
?price gr:hasCurrencyValue ?pricevalue.
?price gr:hasCurrency ?pricecurrency.
?price rdfs:comment ?product.
}
""" |
running SPARQL query | _runSPARQL: (query, resCB) ->
uri = "#{@url}sparql/select?query=#{encodeURIComponent(query)}&output=json"
xhr = jQuery.getJSON uri, (data) =>
res = []
list = data.results.bindings
if list.length isnt _(list).uniq().length
console.warn('CMF DISTINCT is being ignored!', list, query)
list = _(list).uniq()
resCB null, list
xhr.error resCB
xhr |
Testing all the methods above. See results in the console | test: ->
@getVideos (err, res) ->
if err
console.error "getVideos error", err, res
return
console.info "getVideos result", res
@getAnnotatedVideos (err, res) =>
if err
console.error "getAnnotatedVideos error", err, res
return
console.info "getAnnotatedVideos result", res
firstVideo = res[0].instance.value
console.info "Getting locators for", firstVideo
@getVideoLocators firstVideo, (err, res) =>
if err
console.error "getVideoLocators error", err, res
return
console.info "getVideoLocators result", res
videolocator = res[0].source
@getAllVideoLocators videolocator, (err, res) =>
if err
console.error "getAllVideoLocators error", err, res
return
console.info "getAllVideoLocators result", res
@getAnnotationsForLocator videolocator, (err, annotations) =>
if err
console.error "getAnnotationsForLocator error", err, annotations
return
console.info "getAnnotationsForLocator result", annotations
@getLocatorsForVideoOrLocator firstVideo, (err, res) =>
if err
console.error "getLocatorsForVideoOrLocator error", err, res
return
console.info "getLocatorsForVideoOrLocator result", firstVideo, res
@getLocatorsForVideoOrLocator videolocator, (err, res) =>
if err
console.error "getLocatorsForVideoOrLocator error", err, res
return
console.info "getLocatorsForVideoOrLocator result", videolocator, res
@getAnnotationsForVideoOrLocator firstVideo, (err, annotations) =>
if err
console.error "getAnnotationsForVideoOrLocator error", err, annotations
return
console.info "getAnnotationsForVideoOrLocator result", firstVideo, annotations
@getAnnotationsForVideoOrLocator videolocator, (err, annotations) =>
if err
console.error "getAnnotationsForVideoOrLocator error", err, annotations
return
console.info "getAnnotationsForVideoOrLocator result", videolocator, annotations
@getAnnotationsForVideo firstVideo, (err, annotations) =>
if err
console.error "getAnnotationsForVideo error", err, annotations
return
console.info "getAnnotationsForVideo result", annotations
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