Class: RawImageDatasetResource

Inherits:
ActiveResource::Base
  • Object
show all
Defined in:
lib/metamri/raw_image_dataset_resource.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.to_table(datasets) ⇒ Object

Creates an Hirb Table for pretty output of dataset info. It takes an array of either RawImageDatasets or RawImageDatasetResources



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# File 'lib/metamri/raw_image_dataset_resource.rb', line 184

def self.to_table(datasets)
  Hirb::Helpers::AutoTable.render(
    datasets.sort_by{ |ds| [ds.timestamp, File.basename(ds.path)] }, 
    :headers => { :relative_dataset_path => 'Dataset', :series_description => 'Series Details', :file_count => "File Count", :image_dataset_quality_checks_tablerow => "Quality Checks"}, 
    :fields => [:relative_dataset_path, :series_description, :file_count, :image_dataset_quality_checks_tablerow],
    :description => false, # Turn off rendering row count description at bottom.
    :resize => true
  )
rescue NameError => e
  raise e

  # Header Line
  printf "\t%-15s %-30s [%s]\n", "Directory", "Series Description", "Files"

  # Dataset Lines
  datasets.sort_by{|ds| [ds.timestamp, File.basename(ds.path)] }.each do |dataset|
    printf "\t%-15s %-30s [%s]\n", dataset.relative_dataset_path, dataset.series_description, dataset.file_count
  end

  # Reminder Line
  puts "(This would be much prettier if you installed hirb.)"
  return
end

Instance Method Details

#file_count ⇒ Object 



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# File 'lib/metamri/raw_image_dataset_resource.rb', line 133

def file_count
  if pfile?
    file_count = 1
  else
    file_count = Dir.open(path).reject{ |branch| /(^\.|.yaml$)/.match(branch) }.length
  end
  return file_count
end

#image_dataset_quality_checks ⇒ Object

Queries ActiveResource for an array of ImageDatasetQualityCheckResources



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# File 'lib/metamri/raw_image_dataset_resource.rb', line 157

def image_dataset_quality_checks
  @image_dataset_quality_checks ||= ImageDatasetQualityCheckResource.find(:all, :params => {:image_dataset_id => id })
end

#image_dataset_quality_checks_tablerow ⇒ Object 



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# File 'lib/metamri/raw_image_dataset_resource.rb', line 161

def image_dataset_quality_checks_tablerow
  output = []
  unless image_dataset_quality_checks.empty?
    image_dataset_quality_checks.each do |qc|
      qc.failed_checks.each do |check|
        output << "* #{check[:name].capitalize.gsub("_", " ") } (#{check[:value]}): #{(check[:comment] + ".") if check[:comment]}"
      end

      output << "Concerns: #{qc.other_issues}" if qc.other_issues

      if output.empty? 
        output << "Good"
      end
    
      # Add QC date at end.
      output << "[#{qc.attribute_names['created_at'].strftime('%D')}]"
    end
  end
  return output.join(" ")
end

#pfile? ⇒ Boolean

def file_count

unless @file_count
  if @raw_image_files.first.dicom?
    @file_count = Dir.open(@directory).reject{ |branch| /^\./.match(branch) }.length
  elsif @raw_image_files.first.pfile?
    @file_count = 1
  else raise "File not recognized as dicom or pfile."
  end
end
return @file_count

end

Returns:

  • (Boolean) 


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# File 'lib/metamri/raw_image_dataset_resource.rb', line 127

def pfile?
  scanned_file =~ /^P.{5}.7$/
end

#relative_dataset_path(visit_dir = nil) ⇒ Object

Returns a relative filepath to the dataset. Handles dicoms by returning the dataset directory, and pfiles by returning either the pfile filename or, if passed a visit directory, the relative path from the visit directory to the pfile (i.e. P00000.7 or raw/P00000.7).



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# File 'lib/metamri/raw_image_dataset_resource.rb', line 146

def relative_dataset_path(visit_dir = nil)
  if pfile?
    relative_dataset_path = scanned_file
  else # Then it's a dicom.
    relative_dataset_path = File.basename(path)
  end
  
  return relative_dataset_path
end

#to_metamri_raw_image_dataset ⇒ Object

Creates a Backwards Transfer to go from ActiveRecord to Metamri Classes ActiveResource will provide :attr methods for column names from the database, so check the current schema.rb file for those.



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# File 'lib/metamri/raw_image_dataset_resource.rb', line 9

def to_metamri_raw_image_dataset
  # A Metamri Class requires at least one valid image file.
  # This is a little wasteful since we really only care about the variables, 
  # not rescanning them.
  
  # need to stop loading bz2 P files - 15 GB nmprage pfiles taking to long to bunzip2
  # load just P*.7 and have routine job to pbzip2 things up later
  filename = Pathname.new(File.join(path, scanned_file))
flash "wwwwwwwwwwww filename= #{filename}" if $LOG.level <= Logger::INFO
  filename_matches = /P\d{5}.7(.bz2)?/.match(filename)
  filename_matches_non_bz2 = /P\d{5}(.7)?/.match(filename)
  filename_matches_summary = /P\d{5}(.7.summary)?/.match(filename)
  
  if filename_matches    # Pfile
    if filename_matches[1] # '.bz2' if present, nil if otherwise.
      filename = Pathname.new(File.join(filename, '.bz2'))
    end
          
    # The scanned file is always reported in unzipped format, so we don't
    # have to worry about stripping a .bz2 extension.
    # The actual file on the filesystem may be zipped or unzipped 
    # (although it Should! be zipped.  Check for that or return IOError.
    zipped_filename = filename.to_s.chomp + '.bz2'
    summary_filename = filename.to_s.chomp + '.summary'
    if filename.file?
      image_file = filename
    elsif Pathname.new(zipped_filename).file?
      image_file = Pathname.new(zipped_filename)
    else 
      raise IOError, "Could not find #{filename} or it's bz2 zipped equivalent #{zipped_filename}."
    end
    puts "raw_image_dataset_resource  before check for P*.7.summary"
    if  Pathname.new(summary_filename).file?
       puts "raw_image_dataset_resource   THERE IS A SUMMARY P*.7.summary file"
       # skiplocal copy 
       # make @dataset
    end

    image_file.local_copy do |local_pfile| 
      @dataset = RawImageDataset.new( path, [RawImageFile.new(local_pfile)])
    end
  elsif filename_matches_non_bz2 # non-compressed Pfile
    puts "raw_image_dataset_resource  matches non_bz2"
    if filename_matches_non_bz2[1] 
     # filename = Pathname.new(File.join(filename, '.bz2'))
    else
      filename = nil
    end
    if filename.file?
      image_file = filename
    else 
      raise IOError, "Could not find #{filename}."
    end
    # if non-bz2  P*.7 file , the pfile header reader is pulling file from /mounts/data/raw/...
    # but the there is still a local copy being made - ? for the pfile reader?
    # not sure if better to copy a bz2 file over to tmp, bunzip2, then cp to local, again?, for the pfile header reader
    @dataset = RawImageDataset.new( path, [RawImageFile.new(filename)] )

  #  image_file.local_copy do |local_pfile| 
  #    @dataset = RawImageDataset.new( path, [RawImageFile.new(local_pfile)])
  #  end
  elsif filename_matches_summary # 3 line summary of Pfile
    # not do anything - check in P*.7 and P*.7.bz2 if P*.7.summary exists
    puts "raw_image_dataset_resource P*.7.summary match"
   # if filename_matches_summary[1] 
     # filename = Pathname.new(File.join(filename, '.bz2'))
  #    puts " summary file name="+filename
   # else
   #   filename = nil
  #  end
  #  if filename.file?
  #    image_file = filename
  #  else 
  #    raise IOError, "Could not find #{filename}."
  #  end
    # if non-bz2  P*.7 file , the pfile header reader is pulling file from /mounts/data/raw/...
    # but the there is still a local copy being made - ? for the pfile reader?
    # not sure if better to copy a bz2 file over to tmp, bunzip2, then cp to local, again?, for the pfile header reader
   # @dataset = RawImageDataset.new( path, [RawImageFile.new(filename)] )

  #  image_file.local_copy do |local_pfile| 
  #    @dataset = RawImageDataset.new( path, [RawImageFile.new(local_pfile)])
  #  end


  else # Dicom      
    Pathname.new(path).first_dicom do |fd|
      @dataset = RawImageDataset.new( path, [RawImageFile.new(fd)] )
    end
  end
  
  return @dataset
end