protected void addImageMetaData(ref SolrSearchResults solr_results)
{
var ser = new JavaScriptSerializer();
//if (String.IsNullOrEmpty(base_uri) == false) // add in image metadata, not required for Solr indexing
//{
foreach (IInqItem k in solr_results.Results)
{
if (k.GetType().IsSubclassOf(typeof(InqItemIIIFBase)))
{
// new logic here for IIIF images
// k.ImageMetadata = new ImageMetadata { Identifier = file, Imagefile = file, Width = d[0], Height = d[1], DwtLevels = 0, Levels = 0, CompositingLayerCount = 0 };
}
else
{
if (k.File != null)
{
if (!String.IsNullOrEmpty((ImageHelper.Jpeg2000NamespaceReplace)) && k.File.Contains(ImageHelper.Jpeg2000NamespaceReplace)) // see Jpeg2000NamespaceReplace for explanation
{
k.File = k.File.Replace(ImageHelper.Jpeg2000NamespaceReplace, ImageHelper.Jpeg2000Namespace);
}
if ((!JP2HelperBase.IsAudioOrVideo(k.File)) && (!String.IsNullOrEmpty(ImageHelper.ImageFilenameAppend)))
{
k.File = string.Format("{0}{1}", k.File, ImageHelper.ImageFilenameAppend);
}
if (k.File.Contains(ImageHelper.Jpeg2000Namespace)) // file is a jpeg2000 image
{
var md_str = _IJP2Helper.GetJpeg2000Metadata(k.File, false);
md_str = md_str.Replace(@"\", @"\\");
var md = ser.Deserialize <ImageMetadata>(md_str);
k.ImageMetadata = md;
}
else
{
var file = k.File;
// most importantly we need the width and height of non-jpeg2000 images so can re-size them to thumbnails whilst retaining the aspect ratio
var d = ImageHelper.GetImageDimensions(file);
if ((file != null) && (file.Contains("'"))) // apostrophes in filenames, good at breaking JSON
{
file = file.Replace("'", @"\'");
}
k.ImageMetadata = new ImageMetadata {
Identifier = file, Imagefile = file, Width = d[0], Height = d[1], DwtLevels = 0, Levels = 0, CompositingLayerCount = 0
};
// k.ImageMetadata = ser.Deserialize<Jpeg2000Metadata>(String.Format("{{ 'identifier': '{0}', 'imagefile': '{0}', 'width': '{1}', 'height': '{2}', 'dwtLevels': '0', 'levels': '0', 'compositingLayerCount': '0' }}", file, d[0], d[1]));
}
}
}
}
//}
//else
// throw new Exception("SolrRespository.addImageMetaData(): base_uri parameter empty");
// return r_list;
}
public static int[] GetImageDimensions(string file)
{
try
{
if (JP2HelperBase.IsAudioOrVideo(file))
{
file = Path.ChangeExtension(file, ".jpg"); // replace audio/video file extension with .jpg so thumbnail can be read for metadata
}
file = String.Format("{0}{1}", ImageDirectory, file);
var bitmapFrame = BitmapFrame.Create(new Uri(file), BitmapCreateOptions.DelayCreation, BitmapCacheOption.None);
return(new[] { bitmapFrame.PixelWidth, bitmapFrame.PixelHeight });
}
catch (Exception)
{
return(new[] { 0, 0 });
}
}