Module: Daengine::TeamsiteMetadataParser

Defined in:
lib/daengine/teamsite_metadata_parser.rb

Constant Summary collapse

@@translation = 
{
    'TeamSite/Metadata/web_title' => 'title',
    "TeamSite/Metadata/enterprise_last_updated_date"=> 'changed_at',
    "TeamSite/Metadata/enterprise_audience_id"=> 'audiences',
    "TeamSite/Metadata/enterprise_sami_desc"=> 'sami_code',
    "TeamSite/Metadata/enterprise_last_publication_date"=> 'published_at',
    "TeamSite/Metadata/enterprise_unpublish_date"=> 'unpublished_at',
    "TeamSite/Metadata/enterprise_expiration_date"=> 'expires_at',
    "TeamSite/Metadata/enterprise_guid" => 'guid',
    "TeamSite/Metadata/shortSynopsis" => 'summary',
    "TeamSite/Metadata/business_owner" => 'business_owner',
    "TeamSite/Metadata/enterprise_product_id" => 'product_ids',
    "TeamSite/Metadata/enterprise_content_organization_id" => 'content_organization_ids',
    "TeamSite/Metadata/enterprise_program_id" => 'program_ids',
    "TeamSite/Metadata/omnitureSiteSection_codes" => 'omniture_codes'
}
@@path_tuples = 
{
    "path" => 'path',
    "TeamSite/Metadata/enterprise_last_content_update_date" => 'doc_changed_at',
    "TeamSite/Metadata/enterprise_content_type_id" => 'content_type'
}
@@validations = 
{
    "TeamSite/Metadata/display_on_website" => lambda { |val| /Y|1|true/ =~ val },
    "TeamSite/Metadata/enterprise_expiration_date" => lambda {|val| !val.blank? },
    # "TeamSite/Metadata/enterprise_unpublish_date" => lambda {|val| val.blank? },
    #"path" => lambda {|val| !(/\/manifest\// =~ val) }
}
@@logger = 
nil

Class Method Summary collapse

Class Method Details

.log(args) ⇒ Object 



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# File 'lib/daengine/teamsite_metadata_parser.rb', line 42

def self.log(args)
  @@logger.error(args) unless @@logger.blank?
end

.logger=(some_logger) ⇒ Object 



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# File 'lib/daengine/teamsite_metadata_parser.rb', line 37

def self.logger=(some_logger)
  @@logger = some_logger
  self
end

.parse_tuple_file(file, last_read = nil) ⇒ Object 



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# File 'lib/daengine/teamsite_metadata_parser.rb', line 46

def self.parse_tuple_file(file, last_read = nil)
  time do
    asset = nil
    assets = {}
    docpath = {}
    valid = true
    while (line = file.gets)
      case line
        when /<\/?data-tuple>/
          if (asset.blank?)
            asset = DigitalAsset.new
          elsif (valid)
            assets[asset.guid] ||= asset.attributes # first tuple metadata wins
            assets[asset.guid]['documents_attributes'] ||= []
            assets[asset.guid]['documents_attributes'] << docpath
            # assets[asset.guid]['_id'] = asset.guid
            asset = nil; docpath = {}; valid = true;
          else
            asset = nil; docpath = {}; valid = true;
          end
        when /<tuple-field name="([^"]+)">([^<]+)<\/tuple-field>/
          if (valid)
            if @@validations[$1]
              valid = @@validations[$1].call($2)
            end
            if @@path_tuples[$1]
              docpath[@@path_tuples[$1]] = $2 # if this is one of our keys, 'send' to the method
            elsif (@@translation[$1])
              val = asset.send("#{@@translation[$1]}").respond_to?(:[]) ? $2.split(',') : $2
              asset.send("#{@@translation[$1]}=", val)
            end
          end
      end
    end
    # loop thru each doc in the collection, either replace or delete it
    error_files = []
    update_count = 0; delete_count = 0; added_count = 0;
    assets.keys.each do |key|
      da = nil
      begin
        if (!assets[key]['unpublished_at'].nil?)
          DigitalAsset.where(guid: key).try :delete_all
          delete_count += 1
        elsif (assets[key]['expires_at'].nil? || (assets[key]['expires_at'] < 1.minute.from_now))
          DigitalAsset.where(guid: key).try :delete_all
          delete_count += 1
        else
          da = DigitalAsset.find_or_initialize_by(guid: key)
          asset_docs = trim_package(assets[key]['documents_attributes'], last_read, da)
          if (!asset_docs.empty?)
            assets[key]['documents_attributes'] = asset_docs
            assets[key]['orderable'] = da.orderable unless da.new?

            creating = da.new?
            da.documents = []
            begin
              da.update_attributes!(assets[key])
            rescue Exception => e
              error_files << "#{e} ----  #{da.try(:guid)}, #{da.try(:errors).try(:full_messages)}"
            end
            creating ? added_count += 1 : update_count += 1
          else
            DigitalAsset.where(guid: key).try :delete_all
            delete_count += 1
          end
        end
      rescue Exception => e
       Daengine.log(e.message, "error") 
       Daengine.log(e.backtrace.join('\n'), "error")
      end
    end
    log_txt = "TeamsiteMetadataParser: Failed to save/update following DigitalAssets in database:\n"
    error_files.each do |asset_file|
      log_txt << "> #{asset_file}\n"
    end
    Daengine.log(log_txt, "warn") unless error_files.empty?
    Daengine.log("checking purge condition, stale count is #{DigitalAsset.stale.count}, bulk_processed is #{DigitalAsset.bulk_processed?}", 'warn')
    DigitalAsset.purge! # if the purge criteria is met, purge anything not updated
    Daengine.log("TeamsiteMetadataParser: #{added_count} records added, #{update_count} updated, #{delete_count} removed", "info")
  end
end

.time ⇒ Object 



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# File 'lib/daengine/teamsite_metadata_parser.rb', line 180

def self.time
  start = Time.now
  yield
  self.log "elapsed time was #{Time.now - start}"
end

.trim_package(asset_docs, last_read = nil, existing_da = nil) ⇒ Object 



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# File 'lib/daengine/teamsite_metadata_parser.rb', line 128

def self.trim_package(asset_docs, last_read = nil, existing_da = nil)
  docs = []
  path = Daengine.config[:digital_assets_file_directory]
  if Dir.exist?(path)  # dont throw away assets if we can't locate the dir
    asset_docs.each do |doc|
      #exclude manifest_file
      unless doc['path'].match('\/manifest\/')
        file = File.join(path, doc['path'])
        #exclude digital_asset_files that are not in *Teamsite Staging*
        if File.exist?(file)
          docs << doc
          if(File.mtime(file) > last_read)
            begin
              exifdata = ::MiniExiftool.new(file) # spaces in filename
              pages = exifdata.pagecount
              pages = exifdata.pages if pages.blank?
              pages = exifdata.slides if pages.blank?
              if(pages.blank?)
                Daengine.log "Unable to get pages metadata for #{file}, exifdata.pagecount = #{exifdata.pagecount}, exifdata.pages = #{exifdata.pages}", "info"
              end
              doc['pages'] = pages
              doc['size'] = exifdata.filesize
              doc['mime_type'] = exifdata.mimetype
              Daengine.log "Exif data for #{file} was pages:#{doc['pages']}, size:#{doc['size']}", "info"
            rescue Exception => e
              Daengine.log "Error reading metadata from #{file} #{e.message}", "error"
            end
          elsif(existing_da && !existing_da.new?)  # copy over the existing asset metadata
           existing_doc = existing_da.documents.where(path: doc['path'])[0]
           if(existing_doc)
             doc['pages'] = existing_doc.pages
             doc['size'] = existing_doc.size
             doc['mime_type'] = existing_doc.mime_type
           else
             Daengine.log "Unable to find document with path #{file} on existing asset #{existing_da.guid} title: #{existing_da.title}", "info"
           end
           Daengine.log "Saving existing pages #{existing_doc.pages} and size #{existing_doc.size} on #{file}", "info"
          end
        else
          # the file was missing on disk, show a warning!
          Daengine.log("TeamsiteMetadataParser: Unable to locate file #{file} on disk!  Removing from metadata", "warn")
        end
      end
    end
  else
    Daengine.log("******************", "error")
    Daengine.log("ERROR!!!  Unable to locate physical teamsite files at #{path}", "error")
    Daengine.log("******************", "error")
  end
  docs
end