Update BlobEntry (#1095)

* Update BlobEntry
* update serialization test fileDFGs

Author: Affie

src/DataBlobs/entities/BlobEntry.jl

@@ -17,19 +17,19 @@ Base.@kwdef struct BlobEntry
     """ Remotely assigned and globally unique identifier for the `BlobEntry` itself (not the `.blobId`). """
     id::Union{UUID, Nothing} = nothing
     """ Machine friendly and globally unique identifier of the 'Blob', usually assigned from a common point in the system.  This can be used to guarantee unique retrieval of the large data blob. """
-    blobId::Union{UUID, Nothing} = nothing
+    blobId::Union{UUID, Nothing} = uuid4() #Deprecated in v0.25 TODO  remove union, blobId is mandatory
     """ Machine friendly and locally assigned identifier of the 'Blob'.  `.originId`s are mandatory upon first creation at the origin regardless of network access.  Separate from `.blobId` since some architectures do not allow edge processes to assign a uuid4 to data store elements. """
-    originId::Union{UUID, Nothing} = nothing
+    originId::Union{UUID, Nothing} = blobId #Deprecated in v0.25 TODO remove union or remove originId completely
     """ Human friendly label of the `Blob` and also used as unique identifier per node on which a `BlobEntry` is added.  E.g. do "LEFTCAM_1", "LEFTCAM_2", ... of you need to repeat a label on the same variable. """
     label::Symbol
     """ A hint about where the `Blob` itself might be stored.  Remember that a Blob may be duplicated over multiple blobstores. """
-    blobstore::Symbol
+    blobstore::Symbol = :default
     """ A hash value to ensure data consistency which must correspond to the stored hash upon retrieval.  Use `bytes2hex(sha256(blob))`. [Legacy: some usage functions allow the check to be skipped if needed.] """
-    hash::String # Probably https://docs.julialang.org/en/v1/stdlib/SHA
+    hash::String = ""# Probably https://docs.julialang.org/en/v1/stdlib/SHA
     """ Context from which a BlobEntry=>Blob was first created. E.g. user|robot|session|varlabel. """
-    origin::String
-    """ number of bytes in blob """
-    size::Union{Int, Nothing} = nothing
+    origin::String = ""
+    """ number of bytes in blob as a string"""
+    size::Union{String, Nothing} = "" #TODO remove union, use "" as nothing
     """ Additional information that can help a different user of the Blob. """
     description::String = ""
     """ MIME description describing the format of binary data in the `Blob`, e.g. 'image/png' or 'application/json; _type=CameraModel'. """

src/DataBlobs/services/HelpersDataWrapEntryBlob.jl

@@ -49,7 +49,7 @@ function BlobEntry(
     label::Symbol = entry.label,
     blobstore::Symbol = entry.blobstore,
     hash::String = entry.hash,
-    size::Union{Int, Nothing} = entry.size,
+    size::Union{String, Int, Nothing} = entry.size,
     origin::String = entry.origin,
     description::String = entry.description,
     mimeType::String = entry.mimeType,
@@ -67,7 +67,7 @@ function BlobEntry(
         blobstore,
         hash,
         origin,
-        size,
+        size = string(size),
         description,
         mimeType,
         metadata,

src/DistributedFactorGraphs.jl

@@ -139,7 +139,7 @@ export DFGNode, AbstractDFGVariable, AbstractDFGFactor
 export DFGVariable, DFGVariableSummary, SkeletonDFGVariable, PackedVariable
 
 # Factors
-export DFGFactor, DFGFactorSummary, SkeletonDFGFactor, PackedFactor
+export DFGFactor, DFGFactorSummary, SkeletonDFGFactor, PackedFactor, Factor
 
 # Common
 export getSolvable, setSolvable!, isSolvable

src/entities/DFGFactor.jl

@@ -398,6 +398,7 @@ function SkeletonDFGFactor(
     label::Symbol,
     variableOrderSymbols::Vector{Symbol} = Symbol[],
 )
+    @warn "SkeletonDFGFactor(id::Union{UUID, Nothing}...) is deprecated, use SkeletonDFGFactor(label, variableOrderSymbols) instead"
     return SkeletonDFGFactor(id, label, Set{Symbol}(), variableOrderSymbols)
 end
 function SkeletonDFGFactor(