/// <summary>
/// Adds the child resources.
/// </summary>
/// <param name="extractionPath">The extraction path.</param>
/// <param name="document">The document.</param>
/// <param name="resource">The resource.</param>
/// <param name="zentityContext">The zentity context.</param>
private static void AddChildResources(
string extractionPath,
MetsDocument document,
ScholarlyWork resource,
ZentityContext zentityContext)
{
resource.Container = new ScholarlyWorkContainer();
ScholarlyWorkContainer childContainer = null;
string[] fileNames = Directory.GetFiles(extractionPath)
.Select(path => GetFileName(path))
.Where(name => SwordConstants.MetsDocumentName != name)
.ToArray();
if (0 < fileNames.Length)
{
childContainer = new ScholarlyWorkContainer();
resource.Container.ContainedWorks.Add(childContainer);
}
// Loop though all files which are extracted.
foreach (string fileName in fileNames)
{
// Get the extension
int dotIndex = fileName.LastIndexOf('.');
string fileExtension = (0 < dotIndex) ? fileName.Substring(dotIndex + 1) : string.Empty;
#region Upload Zip File Contents
// Get Metadata for the specified fileName
MetadataSection dataSection = document.Files[fileName];
// Create resource against each type as specified in the METS document.
ScholarlyWork individualResource = CreateResouceUsingMetsMetadata(dataSection);
UpdateResourceProeprties(zentityContext, individualResource, dataSection);
// Create Media and Upload file contents.
Core.File individualMediaResource = AddFileResource(zentityContext,
individualResource,
extractionPath + "\\" + fileName);
individualMediaResource.MimeType = AtomPubHelper.GetMimeTypeFromFileExtension(fileExtension);
individualMediaResource.FileExtension = fileExtension;
// Save file name in notes for future references.
individualMediaResource.Description = fileName;
// Associate with the main resource.
childContainer.ContainedWorks.Add(individualResource);
#endregion
AuthenticatedToken authenticatedToken = CoreHelper.GetAuthenticationToken();
individualResource.GrantDefaultPermissions(zentityContext, authenticatedToken);
individualMediaResource.GrantDefaultPermissions(zentityContext, authenticatedToken);
}
}
/// <summary>
/// Update the properties of the resource.
/// </summary>
/// <param name="zentityContext">The ZentityContext to which the resource is attached.</param>
/// <param name="resource">Resource to be update scalar properties.</param>
/// <param name="dataSection"><typeref name="MetadataSection"/> Metadata which contains property values.</param>
private static void UpdateResourceProeprties(ZentityContext zentityContext, ScholarlyWork resource,
MetadataSection dataSection)
{
if (null == resource)
{
throw new ArgumentNullException("resource");
}
if (null == dataSection)
{
throw new ArgumentNullException("dataSection");
}
resource.DateModified = DateTime.Now;
PropertyInfo[] properties = resource.GetType().GetProperties()
.Where(property => PropertyMapper.ResourceProperties.ContainsKey(property.Name))
.ToArray();
// Loop for each property of the resource.
foreach (PropertyInfo property in properties)
{
ReadOnlyCollection <string> values = GetPropertyValues(property.Name, dataSection);
// If no values are present for current property, do not process.
if (null == values || 0 >= values.Count)
{
continue;
}
// Check if the property is scalar property or Navigation Property.
object[] navigationAttr = property.GetCustomAttributes(typeof(EdmRelationshipNavigationPropertyAttribute), true);
if (0 < navigationAttr.Length)
{
UpdateNavigationproperties(zentityContext, resource, property, values);
}
else
{
UpdateScalarProperties(resource, property, values);
}
}
}
/// <summary>
/// Create resource using metadata.
/// </summary>
/// <param name="dataSection">Metadata Section containing metadata of the resource.</param>
/// <returns>A resource of type ScholarlyWork or its derived type.</returns>
private static ScholarlyWork CreateResouceUsingMetsMetadata(MetadataSection dataSection)
{
if (null == dataSection)
{
throw new ArgumentNullException("dataSection");
}
ScholarlyWork resource = null;
Type resourceType = null;
// Get the resource type specified in METS document.
if (null != dataSection.DescriptiveMetadata && null != dataSection.DescriptiveMetadata.ResourceType &&
0 < dataSection.DescriptiveMetadata.ResourceType.Count)
{
string resourceTypeName = dataSection.DescriptiveMetadata.ResourceType[0];
// Check if the resource type is derived from ScholarlyWork,
// as Sword & AtomPub supports only ScholarlyWork and its derivatives.
if (AtomPubHelper.IsValidCollectionType(resourceTypeName))
{
resourceType = CoreHelper.GetSystemResourceType(resourceTypeName);
}
}
// Take ScholarlyWork as default resource type.
if (null == resourceType)
{
resourceType = typeof(ScholarlyWork);
}
// Create resource of type ScholarlyWork or its derived types.
resource = Activator.CreateInstance(resourceType, false) as ScholarlyWork;
if (null == resource)
{
throw new SwordException(Properties.Resources.UNSUPPORTED_RESOURCE_TYPE);
}
return(resource);
}
/// <summary>
/// Gets the property values.
/// </summary>
/// <param name="propertyName">Name of the property.</param>
/// <param name="dataSection">The data section.</param>
/// <returns>Readonly list of property values.</returns>
private static ReadOnlyCollection <string> GetPropertyValues(string propertyName, MetadataSection dataSection)
{
//Get the equivalent DC property for a resource property.
string valueKey = PropertyMapper.ResourceProperties[propertyName];
ReadOnlyCollection <string> values = null; //
// Get the values for the current DC property
// Check if the current property is 'Rights' property
if (SwordConstants.RightsProperty == valueKey)
{
values = (null != dataSection.AdministrativeMetadata) ?
dataSection.AdministrativeMetadata[valueKey] as ReadOnlyCollection <string> : null;
}
else
{
values = (null != dataSection.DescriptiveMetadata) ?
dataSection.DescriptiveMetadata[valueKey] as ReadOnlyCollection <string> : null;
}
return(values);
}
