Fix arrow blob extention and add (#1108)

Co-authored-by: Johannes Terblanche <Affie@users.noreply.github.com>

Author: Affie

ext/BlobArrow.jl

@@ -4,7 +4,10 @@ using Arrow
 using DistributedFactorGraphs
 using DistributedFactorGraphs: _MIMETypes
 
-push!(_MIMETypes, MIME("application/vnd.apache.arrow.file") => format"Arrow") # see issue #507
+function __init__()
+    @info "Including Arrow blobs support in DFG."
+    return push!(_MIMETypes, MIME("application/vnd.apache.arrow.file") => format"Arrow") # see issue #507
+end
 
 # kwargs: compress = :lz4,
 function DFG.packBlob(::Type{format"Arrow"}, data; kwargs...)

src/DataBlobs/services/BlobPacking.jl

@@ -17,7 +17,8 @@ push!(_MIMETypes, MIME("application/octet-stream/json") => format"JSON")
 push!(_MIMETypes, MIME("application/bson") => format"BSON")
 push!(_MIMETypes, MIME("image/png") => format"PNG")
 push!(_MIMETypes, MIME("image/jpeg") => format"JPG")
-push!(_MIMETypes, MIME("application/octet-stream; ext=las") => format"LAS")
+push!(_MIMETypes, MIME("application/vnd.las") => format"LAS")
+push!(_MIMETypes, MIME("application/vnd.apache.parque") => format"Parquet") # Provided by FileIO with ParquetFiles 
 
 """
     packBlob

src/DataBlobs/services/BlobStores.jl

@@ -181,6 +181,9 @@ struct FolderStore{T} <: AbstractBlobStore{T}
     folder::String
 end
 
+#TODO rename key to label for consistency
+getLabel(store::FolderStore) = store.key
+
 function FolderStore(foldername::String; label = :default_folder_store, createfolder = true)
     if createfolder && !isdir(foldername)
         @info "Folder '$foldername' doesn't exist - creating."

src/DistributedFactorGraphs.jl

@@ -227,6 +227,7 @@ export hasBlobEntry,
     getBlobEntry,
     getBlobEntryFirst,
     addBlobEntry!,
+    addBlobEntries!,
     updateBlobEntry!,
     deleteBlobEntry!,
     listBlobEntrySequence,