oarg_decode.RdOpenAIRE Research Graph files are json-files that contain a record identifier and a BASE64 encoded text string representing the metadata. This function decodes these strings and saves them locally.
oarg_decode(oaire = NULL, limit = NULL, records_path = NULL, verbose = TRUE)
| oaire | compressed json file |
|---|---|
| limit | number of records to be decoded |
| records_path | directory for the xml files |
| verbose | print some information on what is going on |
Exports de-compressed XML-formatted record, storing them locally as zip files. The file name represents the record identifier.
De-coding and storing the records individually from an OpenAIRE Research Graph dump allows to process the records independent from each other, which is a common approach when working with big data.
Because the dumps are quite large, the function furthermore has a parameter that allows setting a limit, which is helpful for inspecting the output first.
By default, a progress bar presents the current state of the process.
if (FALSE) { library(jsonlite) dump_file <- system.file("extdata", "", package = "openairegraph") # a dump file is in json format loaded_dump <- jsonlite::stream_in(file("dump_file")) # writes out each XML-formatted record as a zip file to a specified folder oaire_decode(loaded_dump, limit = 10, records_path = "data/") }