Module: Cul::Hydra::Thumbnails

Defined in:
app/controllers/concerns/cul/hydra/thumbnails.rb

Constant Summary collapse

NO_THUMB =

some thumbnail urls

"cul_hydra/crystal/file.png"
BROKEN_THUMB = 
"cul_hydra/crystal/file_broken.png"
COLLECTION_THUMB = 
"cul_hydra/crystal/kmultiple.png"
AUDIO_THUMB = 
"cul_hydra/crystal/sound.png"
FORMAT =

some rel predicates

"http://purl.org/dc/elements/1.1/format"
MEMBER_OF = 
"http://purl.oclc.org/NET/CUL/memberOf"
HAS_MODEL = 
"info:fedora/fedora-system:def/model#hasModel"
IMAGE_WIDTH = 
"http://purl.oclc.org/NET/CUL/RESOURCE/STILLIMAGE/BASIC/imageWidth"
IMAGE_LENGTH = 
"http://purl.oclc.org/NET/CUL/RESOURCE/STILLIMAGE/BASIC/imageLength"

Instance Method Summary collapse

Instance Method Details

#get_by_pid(pid) ⇒ Object 



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# File 'app/controllers/concerns/cul/hydra/thumbnails.rb', line 20

def get_by_pid(pid)
  r_obj = ActiveFedora::Base.find(pid, :cast=>true)
  
  if r_obj.respond_to? :thumbnail_info
    url = r_obj.thumbnail_info
  else
    url = {:asset=>(COLLECTION_THUMB),:mime=>'image/png'}
  end
  if url[:asset]
    #url = {:url=>asset_url(COLLECTION_THUMB),:mime=>'image/png'}
    #redirect_to asset_url(url[:asset]).to_s, status: 302
    #return
  end
  Rails.logger.debug "thumbnail #{url[:url] || url[:asset]} #{url[:mime]}"
  filename = pid + '.' + url[:mime].split('/')[1].downcase
  h_cd = "filename=""#{CGI.escapeHTML(filename)}"""
  headers.delete "Cache-Control"
  headers["Content-Disposition"] = h_cd
  headers["Content-Type"] = url[:mime]
 
  if url[:asset]
    full_path = Rails.application.assets.resolve(url[:asset]).to_path
    render :status => 200, :text => File.read(full_path)
    return
  elsif url[:url].to_s =~ /^https?:/
    cl = http_client
    render :status => 200, :text => cl.get_content(url[:url])
    return
  else
    render :status => 200, :text => File.read(url[:url])
    return
  end
end

#jp2_thumbnail(pid) ⇒ Object 



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# File 'app/controllers/concerns/cul/hydra/thumbnails.rb', line 54

def jp2_thumbnail(pid)
  {:url => ActiveFedora.fedora_config.credentials[:url] + '/objects/' + pid + '/methods/ldpd:sdef.Image/getView?max=250', :mime => 'image/jpeg'}
end

#pid_from_uri(uri) ⇒ Object 



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# File 'app/controllers/concerns/cul/hydra/thumbnails.rb', line 58

def pid_from_uri(uri)
  return uri.sub(/info:fedora\//,'')
end

#show ⇒ Object 



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# File 'app/controllers/concerns/cul/hydra/thumbnails.rb', line 15

def show
  pid = params[:id].split(/@/)[0]
  get_by_pid(pid)
end