public TasksProcessorActor(ITranscoder transcoder, IMetadataExtractor metadataExtractor)
{
_transcoder = transcoder;
_metadataExtractor = metadataExtractor;
Task.Run(() => {
ExecuteTasks();
});
}
public ImportSample(
IMediaStore store,
IMetadataExtractor metadataExtractor,
IFaceDetectionService faceDetectionService,
IBoxExtractorService faceExtractorService,
IThumbnailService thumbnailService)
{
_store = store;
_metadataExtractor = metadataExtractor;
_faceDetectionService = faceDetectionService;
_faceExtractorService = faceExtractorService;
_thumbnailService = thumbnailService;
}
public void ItemsWereAdded(string location, ICollection <PluginItemMetadata> items)
{
IPluginManager pluginManager = ServiceRegistration.Get <IPluginManager>();
foreach (PluginItemMetadata itemMetadata in items)
{
try
{
IMetadataExtractor metadataExtractor = pluginManager.RequestPluginItem <IMetadataExtractor>(
itemMetadata.RegistrationLocation, itemMetadata.Id, new FixedItemStateTracker(METADATA_EXTRACTORS_USE_COMPONENT_NAME));
_parent.RegisterMetadataExtractor(metadataExtractor);
}
catch (PluginInvalidStateException e)
{
ServiceRegistration.Get <ILogger>().Warn("Cannot add metadata extractor for {0}", e, itemMetadata);
}
}
}
protected void RegisterMetadataExtractor(IMetadataExtractor metadataExtractor)
{
lock (_syncObj)
_metadataExtractors.Add(metadataExtractor.Metadata.MetadataExtractorId, metadataExtractor);
MediaAccessorMessaging.SendMetadataExtractorMessage(MediaAccessorMessaging.MessageType.MetadataExtractorAdded, metadataExtractor.Metadata.MetadataExtractorId);
}
/// <summary>
/// Get the metadata for files in the METS xml.
/// </summary>
/// <param name="fileName">Name of the file to get metadata.</param>
/// <returns>Metadata for the given file.</returns>
internal MetadataSection GetMetadata(string fileName)
{
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException("fileName");
}
XmlMetadata[] fileMetadata = GetXmlData(fileName);
if (null == fileMetadata)
{
return(null);
}
Metadata descriptiveData = null;
Metadata administrativeData = null;
foreach (XmlMetadata metadataXml in fileMetadata)
{
if (null == metadataXml.Metadata)
{
continue;
}
IMetadataExtractor extractor = null;
Metadata data = null;
Stream xmlDataStream = new MemoryStream();
StreamWriter dataWriter = new StreamWriter(xmlDataStream);
dataWriter.Write(metadataXml.Metadata.ToString());
dataWriter.Flush();
xmlDataStream.Position = 0;
if (MetsConstants.DublinCorePrefix == metadataXml.MdType)
{
extractor = new DublinCoreMetadataExtractor();
}
data = extractor.ExtractMetadata(xmlDataStream);
if (null == data)
{
continue;
}
if (metadataXml.IsDiscriptive)
{
MergeMetadata(ref descriptiveData, data);
}
else
{
MergeMetadata(ref administrativeData, data);
}
}
if (null == administrativeData && null == descriptiveData)
{
return(null);
}
return(new MetadataSection
{
FileName = fileName,
AdministrativeMetadata = administrativeData,
DescriptiveMetadata = descriptiveData
});
}
protected void RegisterMetadataExtractor(IMetadataExtractor metadataExtractor)
{
lock (_syncObj)
_metadataExtractors.Add(metadataExtractor.Metadata.MetadataExtractorId, metadataExtractor);
MediaAccessorMessaging.SendResourceProviderMessage(MediaAccessorMessaging.MessageType.MetadataExtractorAdded, metadataExtractor.Metadata.MetadataExtractorId);
}
public ExtractMetadataTask(IMetadataExtractor metadataExtractor)
{
_metadataExtractor = metadataExtractor;
}
