public bool TryExtractMetadata(IResourceAccessor mediaItemAccessor, IDictionary <Guid, IList <MediaItemAspect> > extractedAspectData, bool importOnly, bool forceQuickMode)
{
string fileName = mediaItemAccessor.ResourceName;
if (!HasImageExtension(fileName))
{
return(false);
}
bool refresh = false;
if (extractedAspectData.ContainsKey(ImageAspect.ASPECT_ID))
{
refresh = true;
}
try
{
IFileSystemResourceAccessor fsra = mediaItemAccessor as IFileSystemResourceAccessor;
if (!refresh)
{
MultipleMediaItemAspect providerResourceAspect = MediaItemAspect.CreateAspect(extractedAspectData, ProviderResourceAspect.Metadata);
providerResourceAspect.SetAttribute(ProviderResourceAspect.ATTR_RESOURCE_INDEX, 0);
providerResourceAspect.SetAttribute(ProviderResourceAspect.ATTR_PRIMARY, true);
if (!(mediaItemAccessor is IFileSystemResourceAccessor))
{
return(false);
}
// Open a stream for media item to detect mimeType.
using (Stream mediaStream = fsra.OpenRead())
{
string mimeType = MimeTypeDetector.GetMimeType(mediaStream) ?? DEFAULT_MIMETYPE;
providerResourceAspect.SetAttribute(ProviderResourceAspect.ATTR_MIME_TYPE, mimeType);
providerResourceAspect.SetAttribute(ProviderResourceAspect.ATTR_SIZE, fsra.Size);
}
}
MediaItemAspect mediaAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, MediaAspect.Metadata);
mediaAspect.SetAttribute(MediaAspect.ATTR_ISVIRTUAL, false);
MediaItemAspect imageAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, ImageAspect.Metadata);
if (!refresh)
{
// Extract EXIF information from media item.
using (ExifMetaInfo.ExifMetaInfo exif = new ExifMetaInfo.ExifMetaInfo(fsra))
{
mediaAspect.SetAttribute(MediaAspect.ATTR_TITLE, ProviderPathHelper.GetFileNameWithoutExtension(fileName));
mediaAspect.SetAttribute(MediaAspect.ATTR_RECORDINGTIME, exif.OriginalDate != DateTime.MinValue ? exif.OriginalDate : fsra.LastChanged);
mediaAspect.SetAttribute(MediaAspect.ATTR_COMMENT, StringUtils.TrimToNull(exif.ImageDescription));
if (exif.PixXDim.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_WIDTH, (int)exif.PixXDim);
}
if (exif.PixYDim.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_HEIGHT, (int)exif.PixYDim);
}
imageAspect.SetAttribute(ImageAspect.ATTR_MAKE, StringUtils.TrimToNull(exif.EquipMake));
imageAspect.SetAttribute(ImageAspect.ATTR_MODEL, StringUtils.TrimToNull(exif.EquipModel));
if (exif.ExposureBias.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_EXPOSURE_BIAS, ((double)exif.ExposureBias).ToString());
}
imageAspect.SetAttribute(ImageAspect.ATTR_EXPOSURE_TIME, exif.ExposureTime);
imageAspect.SetAttribute(ImageAspect.ATTR_FLASH_MODE, StringUtils.TrimToNull(exif.FlashMode));
if (exif.FNumber.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_FNUMBER, string.Format("F {0}", (double)exif.FNumber));
}
imageAspect.SetAttribute(ImageAspect.ATTR_ISO_SPEED, StringUtils.TrimToNull(exif.ISOSpeed));
imageAspect.SetAttribute(ImageAspect.ATTR_ORIENTATION, (Int32)(exif.OrientationType ?? 0));
imageAspect.SetAttribute(ImageAspect.ATTR_METERING_MODE, exif.MeteringMode.ToString());
if (exif.Latitude.HasValue && exif.Longitude.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_LATITUDE, exif.Latitude);
imageAspect.SetAttribute(ImageAspect.ATTR_LONGITUDE, exif.Longitude);
}
}
byte[] thumbData;
// We only want to create missing thumbnails here, so check for existing ones first
if (MediaItemAspect.TryGetAttribute(extractedAspectData, ThumbnailLargeAspect.ATTR_THUMBNAIL, out thumbData) && thumbData != null)
{
return(true);
}
using (LocalFsResourceAccessorHelper rah = new LocalFsResourceAccessorHelper(mediaItemAccessor))
using (rah.LocalFsResourceAccessor.EnsureLocalFileSystemAccess())
{
string localFsResourcePath = rah.LocalFsResourceAccessor.LocalFileSystemPath;
if (localFsResourcePath != null)
{
// Thumbnail extraction
IThumbnailGenerator generator = ServiceRegistration.Get <IThumbnailGenerator>();
ImageType imageType;
if (generator.GetThumbnail(localFsResourcePath, true, out thumbData, out imageType))
{
MediaItemAspect.SetAttribute(extractedAspectData, ThumbnailLargeAspect.ATTR_THUMBNAIL, thumbData);
}
}
}
return(true);
}
else
{
bool updated = false;
double?latitude = imageAspect.GetAttributeValue <double?>(ImageAspect.ATTR_LATITUDE);
double?longitude = imageAspect.GetAttributeValue <double?>(ImageAspect.ATTR_LONGITUDE);
if (IncludeGeoLocationDetails && !importOnly && latitude.HasValue && longitude.HasValue &&
string.IsNullOrEmpty(imageAspect.GetAttributeValue <string>(ImageAspect.ATTR_COUNTRY)))
{
CivicAddress locationInfo;
if (!forceQuickMode && GeoLocationService.Instance.TryLookup(new GeoCoordinate(latitude.Value, longitude.Value), out locationInfo))
{
imageAspect.SetAttribute(ImageAspect.ATTR_CITY, locationInfo.City);
imageAspect.SetAttribute(ImageAspect.ATTR_STATE, locationInfo.StateProvince);
imageAspect.SetAttribute(ImageAspect.ATTR_COUNTRY, locationInfo.CountryRegion);
updated = true;
}
}
byte[] thumbData;
// We only want to create missing thumbnails here, so check for existing ones first
if (MediaItemAspect.TryGetAttribute(extractedAspectData, ThumbnailLargeAspect.ATTR_THUMBNAIL, out thumbData) && thumbData != null)
{
return(updated);
}
using (LocalFsResourceAccessorHelper rah = new LocalFsResourceAccessorHelper(mediaItemAccessor))
using (rah.LocalFsResourceAccessor.EnsureLocalFileSystemAccess())
{
string localFsResourcePath = rah.LocalFsResourceAccessor.LocalFileSystemPath;
if (localFsResourcePath != null)
{
// In quick mode only allow thumbs taken from cache.
bool cachedOnly = forceQuickMode;
// Thumbnail extraction
IThumbnailGenerator generator = ServiceRegistration.Get <IThumbnailGenerator>();
ImageType imageType;
if (generator.GetThumbnail(localFsResourcePath, cachedOnly, out thumbData, out imageType))
{
MediaItemAspect.SetAttribute(extractedAspectData, ThumbnailLargeAspect.ATTR_THUMBNAIL, thumbData);
updated = true;
}
}
}
return(updated);
}
}
catch (Exception e)
{
// Only log at the info level here - And simply return false. This makes the importer know that we
// couldn't perform our task here.
ServiceRegistration.Get <ILogger>().Info("ImageMetadataExtractor: Exception reading resource '{0}' (Text: '{1}')", mediaItemAccessor.CanonicalLocalResourcePath, e.Message);
}
return(false);
}
public bool TryExtractMetadata(IResourceAccessor mediaItemAccessor, IDictionary <Guid, MediaItemAspect> extractedAspectData, bool forceQuickMode)
{
string fileName = mediaItemAccessor.ResourceName;
if (!HasImageExtension(fileName))
{
return(false);
}
MediaItemAspect mediaAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, MediaAspect.Metadata);
MediaItemAspect imageAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, ImageAspect.Metadata);
MediaItemAspect thumbnailSmallAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, ThumbnailSmallAspect.Metadata);
MediaItemAspect thumbnailLargeAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, ThumbnailLargeAspect.Metadata);
try
{
if (!(mediaItemAccessor is IFileSystemResourceAccessor))
{
return(false);
}
IFileSystemResourceAccessor fsra = mediaItemAccessor as IFileSystemResourceAccessor;
// Open a stream for media item to detect mimeType.
using (Stream mediaStream = fsra.OpenRead())
{
string mimeType = MimeTypeDetector.GetMimeType(mediaStream);
if (mimeType != null)
{
mediaAspect.SetAttribute(MediaAspect.ATTR_MIME_TYPE, mimeType);
}
}
// Extract EXIF information from media item.
using (ExifMetaInfo.ExifMetaInfo exif = new ExifMetaInfo.ExifMetaInfo(fsra))
{
mediaAspect.SetAttribute(MediaAspect.ATTR_TITLE, ProviderPathHelper.GetFileNameWithoutExtension(fileName));
mediaAspect.SetAttribute(MediaAspect.ATTR_RECORDINGTIME, exif.OriginalDate != DateTime.MinValue ? exif.OriginalDate : fsra.LastChanged);
mediaAspect.SetAttribute(MediaAspect.ATTR_COMMENT, StringUtils.TrimToNull(exif.ImageDescription));
if (exif.PixXDim.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_WIDTH, (int)exif.PixXDim);
}
if (exif.PixYDim.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_HEIGHT, (int)exif.PixYDim);
}
imageAspect.SetAttribute(ImageAspect.ATTR_MAKE, StringUtils.TrimToNull(exif.EquipMake));
imageAspect.SetAttribute(ImageAspect.ATTR_MODEL, StringUtils.TrimToNull(exif.EquipModel));
if (exif.ExposureBias.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_EXPOSURE_BIAS, ((double)exif.ExposureBias).ToString());
}
imageAspect.SetAttribute(ImageAspect.ATTR_EXPOSURE_TIME, exif.ExposureTime);
imageAspect.SetAttribute(ImageAspect.ATTR_FLASH_MODE, StringUtils.TrimToNull(exif.FlashMode));
if (exif.FNumber.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_FNUMBER, string.Format("F {0}", (double)exif.FNumber));
}
imageAspect.SetAttribute(ImageAspect.ATTR_ISO_SPEED, StringUtils.TrimToNull(exif.ISOSpeed));
imageAspect.SetAttribute(ImageAspect.ATTR_ORIENTATION, (Int32)(exif.OrientationType ?? 0));
imageAspect.SetAttribute(ImageAspect.ATTR_METERING_MODE, exif.MeteringMode.ToString());
if (exif.Latitude.HasValue && exif.Longitude.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_LATITUDE, exif.Latitude);
imageAspect.SetAttribute(ImageAspect.ATTR_LONGITUDE, exif.Longitude);
LocationInfo locationInfo;
if (!forceQuickMode && GeoLocationMatcher.Instance.TryLookup(exif.Latitude.Value, exif.Longitude.Value, out locationInfo))
{
imageAspect.SetAttribute(ImageAspect.ATTR_CITY, locationInfo.City);
imageAspect.SetAttribute(ImageAspect.ATTR_STATE, locationInfo.State);
imageAspect.SetAttribute(ImageAspect.ATTR_COUNTRY, locationInfo.Country);
}
}
using (ILocalFsResourceAccessor lfsra = StreamedResourceToLocalFsAccessBridge.GetLocalFsResourceAccessor((IFileSystemResourceAccessor)fsra.Clone()))
{
string localFsResourcePath = lfsra.LocalFileSystemPath;
if (localFsResourcePath != null)
{
// In quick mode only allow thumbs taken from cache.
bool cachedOnly = forceQuickMode;
// Thumbnail extraction
IThumbnailGenerator generator = ServiceRegistration.Get <IThumbnailGenerator>();
byte[] thumbData;
ImageType imageType;
if (generator.GetThumbnail(localFsResourcePath, 96, 96, cachedOnly, out thumbData, out imageType))
{
thumbnailSmallAspect.SetAttribute(ThumbnailSmallAspect.ATTR_THUMBNAIL, thumbData);
}
if (generator.GetThumbnail(localFsResourcePath, 256, 256, cachedOnly, out thumbData, out imageType))
{
thumbnailLargeAspect.SetAttribute(ThumbnailLargeAspect.ATTR_THUMBNAIL, thumbData);
}
}
}
}
return(true);
}
catch (Exception e)
{
// Only log at the info level here - And simply return false. This makes the importer know that we
// couldn't perform our task here.
ServiceRegistration.Get <ILogger>().Info("ImageMetadataExtractor: Exception reading resource '{0}' (Text: '{1}')", mediaItemAccessor.CanonicalLocalResourcePath, e.Message);
}
return(false);
}
public bool TryExtractMetadata(IResourceAccessor mediaItemAccessor, IDictionary<Guid, MediaItemAspect> extractedAspectData, bool forceQuickMode)
{
string fileName = mediaItemAccessor.ResourceName;
if (!HasImageExtension(fileName))
return false;
MediaItemAspect mediaAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, MediaAspect.Metadata);
MediaItemAspect imageAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, ImageAspect.Metadata);
MediaItemAspect thumbnailSmallAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, ThumbnailSmallAspect.Metadata);
MediaItemAspect thumbnailLargeAspect = MediaItemAspect.GetOrCreateAspect(extractedAspectData, ThumbnailLargeAspect.Metadata);
try
{
if (!(mediaItemAccessor is IFileSystemResourceAccessor))
return false;
IFileSystemResourceAccessor fsra = mediaItemAccessor as IFileSystemResourceAccessor;
// Open a stream for media item to detect mimeType.
using (Stream mediaStream = fsra.OpenRead())
{
string mimeType = MimeTypeDetector.GetMimeType(mediaStream);
if (mimeType != null)
mediaAspect.SetAttribute(MediaAspect.ATTR_MIME_TYPE, mimeType);
}
// Extract EXIF information from media item.
using (ExifMetaInfo.ExifMetaInfo exif = new ExifMetaInfo.ExifMetaInfo(fsra))
{
mediaAspect.SetAttribute(MediaAspect.ATTR_TITLE, ProviderPathHelper.GetFileNameWithoutExtension(fileName));
mediaAspect.SetAttribute(MediaAspect.ATTR_RECORDINGTIME, exif.OriginalDate != DateTime.MinValue ? exif.OriginalDate : fsra.LastChanged);
mediaAspect.SetAttribute(MediaAspect.ATTR_COMMENT, StringUtils.TrimToNull(exif.ImageDescription));
if (exif.PixXDim.HasValue) imageAspect.SetAttribute(ImageAspect.ATTR_WIDTH, (int) exif.PixXDim);
if (exif.PixYDim.HasValue) imageAspect.SetAttribute(ImageAspect.ATTR_HEIGHT, (int) exif.PixYDim);
imageAspect.SetAttribute(ImageAspect.ATTR_MAKE, StringUtils.TrimToNull(exif.EquipMake));
imageAspect.SetAttribute(ImageAspect.ATTR_MODEL, StringUtils.TrimToNull(exif.EquipModel));
if (exif.ExposureBias.HasValue) imageAspect.SetAttribute(ImageAspect.ATTR_EXPOSURE_BIAS, ((double) exif.ExposureBias).ToString());
imageAspect.SetAttribute(ImageAspect.ATTR_EXPOSURE_TIME, exif.ExposureTime);
imageAspect.SetAttribute(ImageAspect.ATTR_FLASH_MODE, StringUtils.TrimToNull(exif.FlashMode));
if (exif.FNumber.HasValue) imageAspect.SetAttribute(ImageAspect.ATTR_FNUMBER, string.Format("F {0}", (double) exif.FNumber));
imageAspect.SetAttribute(ImageAspect.ATTR_ISO_SPEED, StringUtils.TrimToNull(exif.ISOSpeed));
imageAspect.SetAttribute(ImageAspect.ATTR_ORIENTATION, (Int32) (exif.OrientationType ?? 0));
imageAspect.SetAttribute(ImageAspect.ATTR_METERING_MODE, exif.MeteringMode.ToString());
if (exif.Latitude.HasValue && exif.Longitude.HasValue)
{
imageAspect.SetAttribute(ImageAspect.ATTR_LATITUDE, exif.Latitude);
imageAspect.SetAttribute(ImageAspect.ATTR_LONGITUDE, exif.Longitude);
LocationInfo locationInfo;
if (!forceQuickMode && GeoLocationMatcher.Instance.TryLookup(exif.Latitude.Value, exif.Longitude.Value, out locationInfo))
{
imageAspect.SetAttribute(ImageAspect.ATTR_CITY, locationInfo.City);
imageAspect.SetAttribute(ImageAspect.ATTR_STATE, locationInfo.State);
imageAspect.SetAttribute(ImageAspect.ATTR_COUNTRY, locationInfo.Country);
}
}
using (ILocalFsResourceAccessor lfsra = StreamedResourceToLocalFsAccessBridge.GetLocalFsResourceAccessor((IFileSystemResourceAccessor) fsra.Clone()))
{
string localFsResourcePath = lfsra.LocalFileSystemPath;
if (localFsResourcePath != null)
{
// In quick mode only allow thumbs taken from cache.
bool cachedOnly = forceQuickMode;
// Thumbnail extraction
IThumbnailGenerator generator = ServiceRegistration.Get<IThumbnailGenerator>();
byte[] thumbData;
ImageType imageType;
if (generator.GetThumbnail(localFsResourcePath, 96, 96, cachedOnly, out thumbData, out imageType))
thumbnailSmallAspect.SetAttribute(ThumbnailSmallAspect.ATTR_THUMBNAIL, thumbData);
if (generator.GetThumbnail(localFsResourcePath, 256, 256, cachedOnly, out thumbData, out imageType))
thumbnailLargeAspect.SetAttribute(ThumbnailLargeAspect.ATTR_THUMBNAIL, thumbData);
}
}
}
return true;
}
catch (Exception e)
{
// Only log at the info level here - And simply return false. This makes the importer know that we
// couldn't perform our task here.
ServiceRegistration.Get<ILogger>().Info("ImageMetadataExtractor: Exception reading resource '{0}' (Text: '{1}')", mediaItemAccessor.CanonicalLocalResourcePath, e.Message);
}
return false;
}