private H5NamedReference GetObjectReference(LinkMessage linkMessage, H5LinkAccess linkAccess)
{
return(linkMessage.LinkInfo switch
{
HardLinkInfo hard => new H5NamedReference(linkMessage.LinkName, hard.HeaderAddress, this.File),
SoftLinkInfo soft => new H5SymbolicLink(linkMessage, this).GetTarget(linkAccess),
ExternalLinkInfo external => new H5SymbolicLink(linkMessage, this).GetTarget(linkAccess),
_ => throw new Exception($"Unknown link type '{linkMessage.LinkType}'.")
});
internal H5SymbolicLink(LinkMessage linkMessage, H5Group parent)
{
this.Name = linkMessage.LinkName;
(this.Value, this.ObjectPath) = linkMessage.LinkInfo switch
{
SoftLinkInfo softLink => (softLink.Value, null),
ExternalLinkInfo externalLink => (externalLink.FilePath, externalLink.FullObjectPath),
_ => throw new Exception($"The link info type '{linkMessage.LinkInfo.GetType().Name}' is not supported.")
};
this.Parent = parent;
}
private IEnumerable <LinkMessage> EnumerateLinkMessagesFromLinkInfoMessage(LinkInfoMessage infoMessage)
{
var fractalHeap = infoMessage.FractalHeap;
var btree2NameIndex = infoMessage.BTree2NameIndex;
var records = btree2NameIndex
.EnumerateRecords()
.ToList();
// local cache: indirectly accessed, non-filtered
List <BTree2Record01>?record01Cache = null;
foreach (var record in records)
{
using var localReader = new H5BinaryReader(new MemoryStream(record.HeapId));
var heapId = FractalHeapId.Construct(this.Context, localReader, fractalHeap);
yield return(heapId.Read(reader =>
{
var message = new LinkMessage(reader, this.Context.Superblock);
return message;
}, ref record01Cache));
}
}