get_seurat_mappings <- function(mappings){
return(mappings[sapply(mappings, function(x){x@type == "seurat"})])
}
write_seurat_file <- function(seurat_object, path){
saveRDS(seurat_object, path)
}
write_the_seurat <- function(process, seurat_object){
seurat_outputs <- get_seurat_mappings(process@output)
count = length(seurat_outputs)
if( count == 1)
{
outp <- seurat_outputs[[1]]
write_seurat_file(seurat_object, outp@path)
}
else if (count == 0)
{
stop("No output of type \"seurat\" exists in the output file mapping")
}
else
{
stop( stringr::str_interp(
"Only a single output file mapping of type \"seurat\" is allowed but ${seurat_input_count} are present."
))
}
}
read_seurat_file <- function(path){
seurat_object <- readRDS(path)
return(seurat_object)
}
read_the_seurat <- function(process)
{
seurat_inputs <- get_seurat_mappings(process@input)
seurat_input_count = length(seurat_inputs)
if( seurat_input_count == 1)
{
inp <- seurat_inputs[[1]]
return(read_seurat_file(inp@path))
}
else if (seurat_input_count == 0)
{
stop("No input of type \"seurat\" exists in the input file mapping")
}
else
{
stop( stringr::str_interp(
"Only a single input file mapping of type \"seurat\" is allowed but ${seurat_input_count} are present."
))
}
return(NULL)
}
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