data-raw/metadata_descriptive_old.R
In dataobservatory-eu/dataobservatory: Tidy and Documented Datasets
#' @title Add Creators
#'
#' @description Add one or more creator. The main researchers involved in
#' producing the data, or the authors of the publication, in priority order.
#'
#' @details
#' To supply multiple creators, repeat this property.\cr
#' Allowed values, examples, other constraints: \cr
#' May be a corporate/institutional or personal name. \cr
#' Dublin Core:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Mandatory Properties:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-mandatory-properties#2-creator}{DataCite Metadata Schema v4.4 Mandatory Properties 2 Creator}
#'
#' @inheritParams validate_name
#' @param givenName The given name(s) of the creator or contributor.
#' @param affiliation Optional affiliation of person.
#' @param orcid Optional ORCiD ID of the person.
#' @param gnd Optional GND identifier of the person.
#' @param creators Earlier created list of creators. Defaults to \code{NULL}.
#' If the list exists, then the function will append and not re-create the list.
#' @param format Defaults to \code{'json'}, in which case a JSON-formatted single character
#' string is returned. The alternative is \code{'list'}.
#' @family persons functions
#' @return A list of creators, in a list or in a JSON formatted character string.
#' @export
add_creators <- function(
givenName, familyName,
organizationalName = NULL,
affiliation = NULL,
orcid = NULL,
gnd = NULL,
nameType = "Person",
creators = NULL,
format = "json"){
validated_name <- validate_name ( givenName = givenName,
familyName = familyName,
organizationalName = organizationalName,
nameType = nameType )
creator <- list(creatorName = validated_name$name,
nameType = validated_name$nameType )
if(!is.null(affiliation)) creator <- c(creator, affiliation = affiliation)
if(!is.null(orcid)) creator <- c(creator, orcid = orcid)
if(!is.null(gnd)) contributor <- c(contributor, gnd = gnd)
if ( is.null(creators)) {
creators <- list(creator )
} else {
creators[[length(creators)+1]] <- creator
}
if (format=="json") {
create_json_text(creators)
} else {
creators
}
}
#' @title Add Contributors
#'
#' @description Add one or more contributor.
#'
#' @details
#' The institution or person responsible for collecting, managing,
#' distributing, or otherwise contributing to the development of the resource.
#' In DataCite, recommended for discovery:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties#7-contributor}{DataCite Metadata Schema v4.4 Recommended and Optional Properties 7 Contributor}
#'
#'
#' @inheritParams add_creators
#' @param contributors Earlier created list of contributors. Defaults to \code{NULL}.
#' If the list exists, then the function will append and not re-create the list.
#' @param contributorType A mandatory type of contribution from the person or organization.
#' Must be one of :ContactPerson, DataCollector, DataCurator, DataManager, Distributor, Editor, Funder,
#' HostingInstitution, Producer, ProjectLeader, ProjectManager, ProjectMember, RegistrationAgency,
#' RegistrationAuthority, RelatedPerson, Researcher, ResearchGroup, RightsHolder, Supervisor, Sponsor,
#' WorkPackageLeader, Other.
#' @family persons functions
#' @return A list of contributors, in a list or in a JSON formatted character string.
#' @export
add_contributors <- function(givenName, familyName,
contributorType,
affiliation = NULL,
orcid = NULL, gnd = NULL,
nameType = "Person",
contributors = NULL,
format = "json"){
allowedTypes <- c(
# DataCite types
"ContactPerson", "DataCollector", "DataCurator",
"DataManager","Distributor", "Editor", "Funder",
"HostingInstitution", "Producer", "ProjectLeader",
"ProjectManager", "ProjectMember", "RegistrationAgency",
"RegistrationAuthority", "RelatedPerson",
"Researcher", "ResearchGroup", "RightsHolder","Supervisor",
"Sponsor", "WorkPackageLeader", "Other")
if(!(contributorType %in% allowedTypes)){
stop(sprintf("The contributor type should be one value among values [%s]",
paste(allowedTypes, collapse=",")))
}
validated_name <- validate_name ( givenName = givenName,
familyName = familyName,
organizationalName = organizationalName,
nameType = nameType )
contributor <- list(contributorName = validated_name$name,
nameType = validated_name$nameType ,
contributorType = contributorType)
if(!is.null(affiliation)) contributor <- c(contributor, affiliation = affiliation)
if(!is.null(orcid)) contributor <- c(contributor, orcid = orcid)
if(!is.null(gnd)) contributor <- c(contributor, gnd = gnd)
if ( is.null(contributors)) {
contributors <- list(contributor )
} else {
contributors[[length(contributors)+1]] <- contributor
}
if (format=="json") {
create_json_text(contributors)
} else {
contributors
}
}
#' @title Validate Names
#' @param givenName The given name(s) of the creator or contributor.
#' @param familyName The family name of the creator or contributor.
#' @param organizationalName If the \code{"nameType = 'Organizational'"} than
#' this parameter must be used.
#' @param nameType Defaults to \code{"Person"}, alternative is \code{"Organizational"}.
#' @importFrom snakecase to_title_case
#' @return A validated name as a character string.
#' @keywords internal
validate_name <- function (givenName,
familyName,
organizationalName,
nameType) {
nameType <- snakecase::to_title_case(nameType)
nameType <- ifelse ( grepl("Organi", nameType),
yes = "Organizational",
no = nameType)
allowedNameTypes <- c("Person", "Organizational")
assertthat::assert_that (
nameType %in% allowedNameTypes,
msg = sprintf("The name type should be one value among values ['%s'].",
paste(allowedNameTypes, collapse="', '"))
)
if ( nameType == "Person") {
name = paste(snakecase::to_title_case(familyName),
snakecase::to_title_case(givenName),
sep = ", ")
} else {
assertthat::assert_that (
!is.null(organizationalName),
msg = "You must set an organizational name if the nameType is not 'Person'"
)
assertthat::assert_that (
!is.na(organizationalName),
msg = "You must set an organizational name if the nameType is not 'Person'"
)
name <- organizationalName
}
list ( name = name,
nameType = nameType)
}
#' @title Add description
#'
#' @description All additional information that does not
#' fit in any of the other categories. May be used for technical information.
#'
#' @details
#' See \href{https://support.datacite.org/docs/schema-optional-properties-v41#17-description}{DataCite Metadata Schema v4.4 Recommended and Optional Properties 14 Description}
#'
#' @param Abstract
#' A brief description of the resource and the context in which the resource was created.
#' Recommended for discovery.\cr
#' Use \code{<br>} to indicate a line break for improved rendering of multiple paragraphs,
#' but otherwise no html markup.
#' @param Methods The methodology employed for the study or research.
#' Recommended for discovery.
#' @param SeriesInformation Information about a repeating series, such as volume,
#' issue, number.
#' @param TableofContents A listing of the Table of Contents.
#' Use \code{<br>} to indicate a line break for improved rendering of multiple paragraphs,
#' but otherwise no html markup.
#' @param TechnicalInfo Detailed information that may be associated with design,
#' implementation, operation, use, and/or maintenance of a process or system.
#' Defaults to adding \code{\link{add_sessioninfo}}.
#' @param Other Other description information that does not fit into an existing category.
#' @importFrom jsonlite toJSON
#' @return
#' @examples
#' add_description ("My Description")
#' @export
add_description <- function (
Abstract,
Methods = NULL,
SeriesInformation = NULL,
TableOfContents = NULL,
TechnicalInfo = NULL,
Other = NULL,
format = "json") {
Abstract <- as.character(Abstract)
assertthat::assert_that( length(Abstract)==1,
msg = "The Absract property must be a single character string.")
assertthat::assert_that( (is.null(Other)) | (length(Other)==1),
msg = "The Other property must be a single character string.")
Description = list ( Abstract = Abstract )
if(!is.null(Methods)) Description$Methods <- Methods
if(!is.null(SeriesInformation)) Description$SeriesInformation <- SeriesInformation
if(!is.null(TableOfContents)) Description$TableOfContents<-TableOfContents
if(is.null(TechnicalInfo)) Description$TechnicalInfo <- add_sessioninfo()
if(!is.null(Other)) Description$Other <- Other
if ( format == "json") {
jsonlite::toJSON(Description)
} else {
Description
}
}
#' @title Add identifiders
#'
#' @description Add a unique string that identifies a resource.
#'
#' @details
#' The Identifier is a unique string that identifies a resource.
#' For software, determine whether the identifier is for a specific version of a piece of software,
#' or for all versions
#'
#' In Dublin Core, Resource Identifier:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Mandatory Properties, Identifer:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-mandatory-properties#1-identifier}{DataCite Metadata Schema v4.4 Mandatory Properties 1 Identifier}
#' @param id An identifier string.
#' @param URI A Uniform Resource Identifier (URI) is a unique sequence of characters that
#' identifies a logical or physical resource used by web technologies.
#' URIs may be used to identify anything, including real-world objects,
#' such as people and places, concepts, or information resources such as web pages and books.
#' @param DOI This is the only controlled item in DataCite.
#' @param dataset_code A short, unique, programatically usable, memorizable dataset
#' ID, given by an observatory curator.
#' @param Version A resource version, for example, for an R package.
#' @param idAtSource The id used in a source document.
#' @param Other Other identifier.
#' @param identifiers A list of identifiers that were set earlier. If not the default
#' \code{NULL} value, the function adds identifiers to this pre-exsisting list of
#' identifiers.
#' @param format Defaults to \code{'json'}, in which case a JSON-formatted single character
#' string is returned. The alternative is \code{'list'}.
#' @return A list, a json text of identifier(s).
#' @export
add_identifiers <- function (
id = NULL,
dataset_code = NULL,
URI = NULL,
DOI = NULL,
Version = NULL,
idAtSource = NULL,
Other = NULL,
identifiers = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list' or 'json'."
)
Identifiers <- list (
id = id,
dataset_code = dataset_code,
URI = URI,
DOI = DOI,
Version = Version,
idAtSource = idAtSource,
Other = Other
)
assertthat::assert_that(
! all( vapply ( Identifiers, is.null, logical(1))),
msg = "All identifiers are NULL. At least one of them must be given."
)
if ( !is.null(identifiers) ) {
if (all(vapply(identifiers, is.json, logical(1)))) {
assertthat::assert_that(
all(vapply(identifiers, validate_related_item, logical(1))),
msg = "Every related item must be strictly formatted."
)
if ( is.json(identifiers) ) {
identifiers <- jsonlite::fromJSON(identifiers)
}
}
}
if ( format == "list") {
append ( list(identifiers), list(Identifiers) )
} else if ( format=="json") {
jsonlite::toJSON(append ( list(identifiers), list(Identifiers) ))
} else{
stop("The parameter='format' must be either 'list' or 'json'")
}
}
#' @importFrom jsonlite fromJSON
#' @importFrom glue glue
#' @keywords internal
validate_identifier <- function (Identifier) {
allowed_identifier_types <- c("id", "dataset_code", "URI", "DOI", "Version", "idAtSource", "Other")
allowed_types <- paste(allowed_identifier_types, collapse = ", ")
error_msg_wrong_parameters <- glue::glue(
"The identifier object may have the following fields:{ allowed_types }.")
error_msg_few_parameters <- glue::glue(
"The identifier object may have at least two of the following fields:{ allowed_types }.")
if ( is.json(Identifier) ) {
identifier_list <- jsonlite::fromJSON(Identifier)
} else {
identifier_list <- Identifier
}
assertthat::assert_that(is.list(identifier_list),
msg = "The identifier must be given as a list or a json object.")
assertthat::assert_that(length(identifier_list)>1,
msg = error_msg_few_parameters)
not_allowed_id <- names(identifier_list) [! names(identifier_list) %in% allowed_identifier_types]
error_msg_wrong_id <- glue::glue("{not_allowed_id} is not among allowed fields:{ allowed_types }.")
assertthat::assert_that(
length(not_allowed_id)==0,
msg = error_msg_wrong_id )
}
#' @title Add related item
#'
#' @description Add observation status coding, such as actual, missing, estimated or
#' imputed values to a dataset.
#'
#' @details
#' In Dublin Core, Relation:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Optional Properties, relatedItem:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties}{DataCite Metadata Schema v4.4 Recommended and Optional Properties}
#'
#' @param relatedItem The human readable title or name of the award (grant) as a character string.
#' @param relationType Any of \code{isCitedBy}, \code{Cites}, \code{isSupplementTo}, \code{IsSupplementedBy}, \code{IsDerivedFrom}, \code{isSupplementedBy}, \code{isNewVersionOf}, \code{isPreviousVersionOf}, \code{IsOriginalFormOf}, \code{IsVariantFormOf}, \code{Documents}, \code{IsDocumentedBy}, \code{References}, \code{IsReferencedBy}, \code{IsPublishedIn}, \code{IsPreviousVersionOf}, \code{IsNewVersionOf}, \code{IsVersionOf}, \code{HasVersion}, \code{IsMetadataFor}, \code{HasMetadata}, \code{isPartOf}, \code{IsSourceOf}, \code{hasPart}, \code{compiles}, \code{isCompiledBy}, \code{isIdenticalTo}, \code{isAlternateIdentifier}, \code{Obsoletes}, \code{IsObsoletedBy}, \code{Requires}, \code{IsRequiredBy}, \code{Reviews}, \code{IsReviewedBy}. \cr
#' @param relatedItemType \code{Audiovisual}, \code{Book}, \code{BookChapter}, \code{Collection}, \code{ComputationalNotebook}, \code{ConferencePaper}, \code{ConferenceProceeding}, \code{DataPaper}, \code{Dataset}, \code{Dissertation}, \code{Event}, \code{Image}, \code{InteractiveResource}, \code{Journal}, \code{JournalArticle}, \code{Model}, \code{OutputManagementPlan}, \code{PeerReview}, \code{PhysicalObject}, \code{Preprint}, \code{Report}, \code{Service}, \code{Software}, \code{Sound}, \code{Standard}, \code{Text}, \code{Workflow}, \code{Other}
#'
#' @param relatedItemIdentifer An Identifier created by
#' \code{\link{add_identifiers}}.
#' @importFrom jsonlite toJSON
#' @examples
#' first_rel_item <- add_related_items (
#' RelatedItem = "First Related Item",
#' relatedItemType = "Dataset",
#' relationType = "IsDerivedFrom",
#' relatedItemIdentifier = add_identifiers (id = "first_rel_item"),
#' related_items = NULL,
#' format = 'json' )
#'
#' add_related_items (
#' RelatedItem = "Second Related Item",
#' relatedItemType = "Dataset",
#' relationType = "IsDerivedFrom",
#' relatedItemIdentifier = add_identifiers (id = "second_rel_item"),
#' related_items = first_rel_item,
#' format = 'json' )
#' @export
add_related_items <- function (
RelatedItem,
relatedItemType = "Dataset",
relationType = "IsDerivedFrom",
relatedItemIdentifier,
related_items = NULL,
format = 'json' ) {
resource_types <- resource_types_datacite()
relation_types <- relation_type_datacite()
validate_identifier(Identifier = relatedItemIdentifier)
not_one_of_relations <- paste (relation_types, collapse = ", ")
assertthat::assert_that(
length(relationType) == 1 & relatedItemType %in% resource_types,
msg = glue::glue("relatedItemType must be one of {not_one_of_relations}")
)
assertthat::assert_that(
length(relationType) == 1 & relationType %in% relation_types,
msg = glue::glue("relationType must be one of {not_one_of_relations}")
)
RelatedItem <- list (
RelatedItem = RelatedItem,
relatedItemType = relatedItemType,
relationType = relationType,
relatedItemIdentifier = relatedItemIdentifier
)
if ( !is.null(related_items) ) {
if (all(vapply(related_items, is.json, logical(1)))) {
assertthat::assert_that(
all(vapply(related_items, validate_related_item, logical(1))),
msg = "Every related item must be strictly formatted."
)
if ( is.json(related_items) ) {
related_items <- jsonlite::fromJSON(related_items)
}
}
}
if ( format == "list") {
append ( list(related_items), list(RelatedItem) )
} else if ( format=="json") {
jsonlite::toJSON(append ( list(related_items), list(RelatedItem) ))
} else{
stop("The parameter='format' must be either 'list' or 'json'")
}
}
#' @inheritParams add_related_items
#' @importFrom jsonlite fromJSON
#' @importFrom assertthat assert_that
#' @keywords internal
validate_related_item <- function(RelatedItem) {
if (is.json(RelatedItem)) RelatedItem <- jsonlite::fromJSON(RelatedItem)
related_item_fields <- c("RelatedItem", "relatedItemType", "relationType", "relatedItemIdentifier")
assertthat::assert_that(
all(names (RelatedItem) %in% related_item_fields),
msg = paste0("The related items must have the following fields: ",
paste(related_item_fields, collapse = ", "))
)
}
#' @title Add Titles
#'
#' @description Add a main title, and optional subtitle, alternative- or translated title,
#' or other title.
#'
#' @details
#' Dublin Core:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Mandatory Properties:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-mandatory-properties}{DataCite Metadata Schema v4.4 Mandatory Properties}
#'
#' The \code{Title} field is mandatory in both DataCite and Dublin Core. DataCite allows multiple
#' titles to be used, these can be added as a list.
#'
#'
#' @param title A character string containing the title of the Dataset.
#' It is mandatory and has no default value. This is part of the Dublin Core and
#' DataCite mandatory fields.
#' @param AlternativeTitle Defaults to \code{NULL}, and it is part of the optional
#' fields of DataCite.
#' @param Subtitle Defaults to \code{NULL}.
#' @param TranslatedTitle Defaults to \code{NULL}.
#' @param Other Defaults to \code{NULL}. Try avoiding its use.
#' @param titles A list of earlier set title(s).
#' @inheritParams add_creators
#' @family descriptive_metadata functions
#' @return A list of titles.
#' @examples{
#' add_titles(title = "My Title",
#' AlternativeTitle = "Alternative Title",
#' Subtitle = "This is a subtitle",
#' TranslatedTitle = "Meine Titel",
#' Other = "Other title")
#' }
#' @export
add_titles <- function (Title = NULL,
AlternativeTitle = NULL,
Subtitle = NULL,
TranslatedTitle = NULL,
Other = NULL,
titles = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list' or 'json'."
)
if ( is.null(Title)) {
# This can be used to add further titles, if titles already exists
if (is.null(titles)) {
stop("The main Title field must not be left empty.")
}
} else {
title <- snakecase::to_title_case(as.character(Title))
titles <- list ( Title = Title )
}
if ( !is.null(AlternativeTitle)) titles$AlternativeTitle <- AlternativeTitle
if ( !is.null(Subtitle)) titles$Subtitle <- Subtitle
if ( !is.null(TranslatedTitle)) titles$TranslatedTitle <- TranslatedTitle
if ( !is.null(Other)) titles$Other <- Other
if (format=="json") {
jsonlite::toJSON(titles)
} else {
titles
}
}
#' @title Add Dates
#'
#' @description Add dates to the administrative and descriptive metadata.
#'
#' @details See the controlled date items in
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties#8a-datetype}{DataCite Metaadata Schema 4.4}.
#'#'
#' @param Date The main date of the resource, unless otherwise stated, should equal
#' first issue.
#' @param Updated The date of the last update to the resource, when the resource is being added to. May be a range.
#' @param UpdatedAtSource The date of the last update to the resource at its original source. May be a range.
#' @param StructuralChangeAtSource The date of the last structural data chanage at source.
#' @param FirstObservation The date of the first actual observation (which is not estimated.)
#' @param LastObservation The date of the last actual observation (which is not forecasted.)
#' @param Accepted The date that the publisher accepted the resource into their system.
#' To indicate the start of an embargo period, use Submitted or Accepted, as appropriate.
#' @param Available The date the resource is made publicly available. May be a range.
#' To indicate the end of an embargo period, use Available.
#' @param Copyrighted The specific, documented date at which the resource receives
#' a copyrighted status, if applicable.
#' @param Collected The date or date range in which the resource content was collected.
#' To indicate precise or particular timeframes in which research was conducted.
#' @param Created The date the resource itself was put together;
#' this could refer to a timeframe in ancient history, be a date range or a single date for a final component,
#' e.g., the finalized file with all of the data.
#' Recommended for discovery.
#' @param Issued The date that the resource is published or distributed e.g. to a data centre.
#' @param Submitted The date the creator submits the resource to the publisher.
#' This could be different from Accepted if the publisher then applies a selection process.
#' To indicate the start of an embargo period, use Submitted or Accepted, as appropriate.
#' Recommended for discovery.
#' @param Valid The date or date range during which the dataset or resource is accurate.
#' @param Withdrawn The date the resource is removed. It's good practice to indicate the reason for retraction
#' of withdrawal in the descriptionType.
#' @param format format Defaults to \code{'json'}, in which case a JSON-formatted single character
#' string is returned. The alternative is \code{'list'} or \code{'character'} (for single Date only.)
#' @examples
#' add_dates()
#' @export
add_dates <- function ( Date = Sys.Date(),
Updated = Sys.Date(),
UpdatedAtSource = NULL,
Collected = NULL,
EarliestObservation = NULL,
LatestObservation = NULL,
StructuralChangeAtSource = NULL,
Accepted = NULL,
Available = NULL,
Created = NULL,
Copyrighted = NULL,
Issued = NULL,
Submitted = NULL,
Valid = NULL,
Withdrawn = NULL,
dates = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list','json' or 'character'."
)
if ( is.null(Date)) {
# This can be used to add further titles, if titles already exists
if (is.null(dates)) {
stop("The main Date field must not be left empty.")
}
} else {
Updated <- as.character(Updated)
dates <- list ( Updated = Updated )
}
if (!is.null(UpdatedAtSource)) dates$UpdatedAtSource <- UpdatedAtSource
if (!is.null(Collected)) dates$Collected <- Collected
if (!is.null(EarliestObservation)) dates$EarliestObservation <- EarliestObservation
if (!is.null(LatestObservation)) dates$LatestObservation <- LatestObservation
if (!is.null(LatestObservation)) dates$LatestObservation <- LatestObservation
if (!is.null(Accepted)) dates$Accepted <- Accepted
if (!is.null(Copyrighted)) dates$Copyrighted <- Copyrighted
if (!is.null(Issued)) dates$Issued <- Issued
if (!is.null(Submitted)) dates$Submitted <- Submitted
if (!is.null(Valid)) dates$Valid <- Valid
if (!is.null(Withdrawn)) dates$Withdrawn <- Withdrawn
if (format=="json") {
jsonlite::toJSON(dates)
} else if (format=="list") {
dates
} else {
as.character(Updated)
}
}
#' @title Add Rights
#'
#' @description Add access rights information to the metadata.
#' @details
#' In Dublin Core, Rights Management:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Optional Properties, Rights:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties}{DataCite Metadata Schema v4.4 Recommended and Optional Properties}
#'
#'
#' Usually you do not have to fill in \code{rigthsURI}. We only use
#' standard rights definitions in \href{https://spdx.org/licenses/}{SPDX License List}.
#'
#'
#' @param rightsIdentifier An identifier of the applicable use right, defaults to
#' \code{'CC-BY-NC-SA-4.0'}.
#' \href{https://spdx.org/licenses/}{SPDX License List}
#' @param rigthsURI A URL to the definition of the rigth. Automatically created from
#' \href{https://spdx.org/licenses/}{SPDX License List}.
#' Defaults to \code{NULL}, when the download will be called with \code{id}.
#' @inheritParams add_creators
#' @examples
#' add_rights( 'CC-BY-NC-SA-4.0')
#' @export
add_rights <- function ( rightsIdentifier = 'CC-BY-NC-SA-4.0',
rightsURI = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list','json' or 'character'."
)
if (is.null(rightsURI)) {
rightsURL <- glue::glue("https://spdx.org/licenses/{rightsIdentifier}.html")
} else {
rightURL <- rightsURI
}
assertthat::assert_that(
RCurl::url.exists(rightsURL),
msg = glue::glue("The rigthsURI={rightsURL} is not available")
)
Rigths <- list ( rightsIdentifier = 'CC-BY-NC-SA-4.0',
rightsURI = rightsURL)
if ( format == "list") {
Rigths
} else {
jsonlite::toJSON(Rigths)
}
}
#' @title Add Size
#'
#' @description Add the file size of the dataset (in CSV format.)
#' @details The file will be written to a temporary directory and its sized measured.
#' It also serves validation purposes for the dataset.
#' @param dat The dataset that needs size information.
#' @return A string explaining the file size in CSV format.
#' @family descriptive_metadata functions
#' @export
add_size <- function(dat) {
tmp <- tempfile()
write.csv(dat, tmp)
size_value <- paste0( file.size(tmp), " bytes in CSV format")
file.remove(tmp)
size_value
}
#' @title Add Geolocation
#'
#' @description Add the spatial region or named place where
#' the data was gathered or about which the data is focused.
#'
#' @param dat The dataset that needs size information.
#' @param geo_var Defaults to \code{geo}.
#' @inheritParams add_creators
#' @family descriptive_metadata functions
#' @return A string explaining the file size in CSV format.
#' @export
add_geolocation <- function(dat,
geo_var = 'geo',
geo_name_var = NULL,
format = 'json') {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list','json' or 'character'."
)
geoLocationPlace <- NA_character_
geoCodes <- NA_character_
if (!is.null(geo_name_var)) {
if ( geo_name_var %in% names(dat)) {
geoLocationPlace <- paste(unique(as.character(unlist(dat[, geo_name_var]))), collapse="|")
}
}
if ( geo_var %in% names(dat)) {
geoCodes = paste(unique(as.character(unlist(dat[, geo_var]))), collapse="|")
}
GeoLocation <-list ( geoLocationPlace = geoLocationPlace,
geoCodes = geoCodes )
if ( format == "list") {
GeoLocation
} else {
jsonlite::toJSON(GeoLocation)
}
}
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#' @title Add Creators
#'
#' @description Add one or more creator. The main researchers involved in
#' producing the data, or the authors of the publication, in priority order.
#'
#' @details
#' To supply multiple creators, repeat this property.\cr
#' Allowed values, examples, other constraints: \cr
#' May be a corporate/institutional or personal name. \cr
#' Dublin Core:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Mandatory Properties:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-mandatory-properties#2-creator}{DataCite Metadata Schema v4.4 Mandatory Properties 2 Creator}
#'
#' @inheritParams validate_name
#' @param givenName The given name(s) of the creator or contributor.
#' @param affiliation Optional affiliation of person.
#' @param orcid Optional ORCiD ID of the person.
#' @param gnd Optional GND identifier of the person.
#' @param creators Earlier created list of creators. Defaults to \code{NULL}.
#' If the list exists, then the function will append and not re-create the list.
#' @param format Defaults to \code{'json'}, in which case a JSON-formatted single character
#' string is returned. The alternative is \code{'list'}.
#' @family persons functions
#' @return A list of creators, in a list or in a JSON formatted character string.
#' @export
add_creators <- function(
givenName, familyName,
organizationalName = NULL,
affiliation = NULL,
orcid = NULL,
gnd = NULL,
nameType = "Person",
creators = NULL,
format = "json"){
validated_name <- validate_name ( givenName = givenName,
familyName = familyName,
organizationalName = organizationalName,
nameType = nameType )
creator <- list(creatorName = validated_name$name,
nameType = validated_name$nameType )
if(!is.null(affiliation)) creator <- c(creator, affiliation = affiliation)
if(!is.null(orcid)) creator <- c(creator, orcid = orcid)
if(!is.null(gnd)) contributor <- c(contributor, gnd = gnd)
if ( is.null(creators)) {
creators <- list(creator )
} else {
creators[[length(creators)+1]] <- creator
}
if (format=="json") {
create_json_text(creators)
} else {
creators
}
}
#' @title Add Contributors
#'
#' @description Add one or more contributor.
#'
#' @details
#' The institution or person responsible for collecting, managing,
#' distributing, or otherwise contributing to the development of the resource.
#' In DataCite, recommended for discovery:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties#7-contributor}{DataCite Metadata Schema v4.4 Recommended and Optional Properties 7 Contributor}
#'
#'
#' @inheritParams add_creators
#' @param contributors Earlier created list of contributors. Defaults to \code{NULL}.
#' If the list exists, then the function will append and not re-create the list.
#' @param contributorType A mandatory type of contribution from the person or organization.
#' Must be one of :ContactPerson, DataCollector, DataCurator, DataManager, Distributor, Editor, Funder,
#' HostingInstitution, Producer, ProjectLeader, ProjectManager, ProjectMember, RegistrationAgency,
#' RegistrationAuthority, RelatedPerson, Researcher, ResearchGroup, RightsHolder, Supervisor, Sponsor,
#' WorkPackageLeader, Other.
#' @family persons functions
#' @return A list of contributors, in a list or in a JSON formatted character string.
#' @export
add_contributors <- function(givenName, familyName,
contributorType,
affiliation = NULL,
orcid = NULL, gnd = NULL,
nameType = "Person",
contributors = NULL,
format = "json"){
allowedTypes <- c(
# DataCite types
"ContactPerson", "DataCollector", "DataCurator",
"DataManager","Distributor", "Editor", "Funder",
"HostingInstitution", "Producer", "ProjectLeader",
"ProjectManager", "ProjectMember", "RegistrationAgency",
"RegistrationAuthority", "RelatedPerson",
"Researcher", "ResearchGroup", "RightsHolder","Supervisor",
"Sponsor", "WorkPackageLeader", "Other")
if(!(contributorType %in% allowedTypes)){
stop(sprintf("The contributor type should be one value among values [%s]",
paste(allowedTypes, collapse=",")))
}
validated_name <- validate_name ( givenName = givenName,
familyName = familyName,
organizationalName = organizationalName,
nameType = nameType )
contributor <- list(contributorName = validated_name$name,
nameType = validated_name$nameType ,
contributorType = contributorType)
if(!is.null(affiliation)) contributor <- c(contributor, affiliation = affiliation)
if(!is.null(orcid)) contributor <- c(contributor, orcid = orcid)
if(!is.null(gnd)) contributor <- c(contributor, gnd = gnd)
if ( is.null(contributors)) {
contributors <- list(contributor )
} else {
contributors[[length(contributors)+1]] <- contributor
}
if (format=="json") {
create_json_text(contributors)
} else {
contributors
}
}
#' @title Validate Names
#' @param givenName The given name(s) of the creator or contributor.
#' @param familyName The family name of the creator or contributor.
#' @param organizationalName If the \code{"nameType = 'Organizational'"} than
#' this parameter must be used.
#' @param nameType Defaults to \code{"Person"}, alternative is \code{"Organizational"}.
#' @importFrom snakecase to_title_case
#' @return A validated name as a character string.
#' @keywords internal
validate_name <- function (givenName,
familyName,
organizationalName,
nameType) {
nameType <- snakecase::to_title_case(nameType)
nameType <- ifelse ( grepl("Organi", nameType),
yes = "Organizational",
no = nameType)
allowedNameTypes <- c("Person", "Organizational")
assertthat::assert_that (
nameType %in% allowedNameTypes,
msg = sprintf("The name type should be one value among values ['%s'].",
paste(allowedNameTypes, collapse="', '"))
)
if ( nameType == "Person") {
name = paste(snakecase::to_title_case(familyName),
snakecase::to_title_case(givenName),
sep = ", ")
} else {
assertthat::assert_that (
!is.null(organizationalName),
msg = "You must set an organizational name if the nameType is not 'Person'"
)
assertthat::assert_that (
!is.na(organizationalName),
msg = "You must set an organizational name if the nameType is not 'Person'"
)
name <- organizationalName
}
list ( name = name,
nameType = nameType)
}
#' @title Add description
#'
#' @description All additional information that does not
#' fit in any of the other categories. May be used for technical information.
#'
#' @details
#' See \href{https://support.datacite.org/docs/schema-optional-properties-v41#17-description}{DataCite Metadata Schema v4.4 Recommended and Optional Properties 14 Description}
#'
#' @param Abstract
#' A brief description of the resource and the context in which the resource was created.
#' Recommended for discovery.\cr
#' Use \code{<br>} to indicate a line break for improved rendering of multiple paragraphs,
#' but otherwise no html markup.
#' @param Methods The methodology employed for the study or research.
#' Recommended for discovery.
#' @param SeriesInformation Information about a repeating series, such as volume,
#' issue, number.
#' @param TableofContents A listing of the Table of Contents.
#' Use \code{<br>} to indicate a line break for improved rendering of multiple paragraphs,
#' but otherwise no html markup.
#' @param TechnicalInfo Detailed information that may be associated with design,
#' implementation, operation, use, and/or maintenance of a process or system.
#' Defaults to adding \code{\link{add_sessioninfo}}.
#' @param Other Other description information that does not fit into an existing category.
#' @importFrom jsonlite toJSON
#' @return
#' @examples
#' add_description ("My Description")
#' @export
add_description <- function (
Abstract,
Methods = NULL,
SeriesInformation = NULL,
TableOfContents = NULL,
TechnicalInfo = NULL,
Other = NULL,
format = "json") {
Abstract <- as.character(Abstract)
assertthat::assert_that( length(Abstract)==1,
msg = "The Absract property must be a single character string.")
assertthat::assert_that( (is.null(Other)) | (length(Other)==1),
msg = "The Other property must be a single character string.")
Description = list ( Abstract = Abstract )
if(!is.null(Methods)) Description$Methods <- Methods
if(!is.null(SeriesInformation)) Description$SeriesInformation <- SeriesInformation
if(!is.null(TableOfContents)) Description$TableOfContents<-TableOfContents
if(is.null(TechnicalInfo)) Description$TechnicalInfo <- add_sessioninfo()
if(!is.null(Other)) Description$Other <- Other
if ( format == "json") {
jsonlite::toJSON(Description)
} else {
Description
}
}
#' @title Add identifiders
#'
#' @description Add a unique string that identifies a resource.
#'
#' @details
#' The Identifier is a unique string that identifies a resource.
#' For software, determine whether the identifier is for a specific version of a piece of software,
#' or for all versions
#'
#' In Dublin Core, Resource Identifier:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Mandatory Properties, Identifer:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-mandatory-properties#1-identifier}{DataCite Metadata Schema v4.4 Mandatory Properties 1 Identifier}
#' @param id An identifier string.
#' @param URI A Uniform Resource Identifier (URI) is a unique sequence of characters that
#' identifies a logical or physical resource used by web technologies.
#' URIs may be used to identify anything, including real-world objects,
#' such as people and places, concepts, or information resources such as web pages and books.
#' @param DOI This is the only controlled item in DataCite.
#' @param dataset_code A short, unique, programatically usable, memorizable dataset
#' ID, given by an observatory curator.
#' @param Version A resource version, for example, for an R package.
#' @param idAtSource The id used in a source document.
#' @param Other Other identifier.
#' @param identifiers A list of identifiers that were set earlier. If not the default
#' \code{NULL} value, the function adds identifiers to this pre-exsisting list of
#' identifiers.
#' @param format Defaults to \code{'json'}, in which case a JSON-formatted single character
#' string is returned. The alternative is \code{'list'}.
#' @return A list, a json text of identifier(s).
#' @export
add_identifiers <- function (
id = NULL,
dataset_code = NULL,
URI = NULL,
DOI = NULL,
Version = NULL,
idAtSource = NULL,
Other = NULL,
identifiers = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list' or 'json'."
)
Identifiers <- list (
id = id,
dataset_code = dataset_code,
URI = URI,
DOI = DOI,
Version = Version,
idAtSource = idAtSource,
Other = Other
)
assertthat::assert_that(
! all( vapply ( Identifiers, is.null, logical(1))),
msg = "All identifiers are NULL. At least one of them must be given."
)
if ( !is.null(identifiers) ) {
if (all(vapply(identifiers, is.json, logical(1)))) {
assertthat::assert_that(
all(vapply(identifiers, validate_related_item, logical(1))),
msg = "Every related item must be strictly formatted."
)
if ( is.json(identifiers) ) {
identifiers <- jsonlite::fromJSON(identifiers)
}
}
}
if ( format == "list") {
append ( list(identifiers), list(Identifiers) )
} else if ( format=="json") {
jsonlite::toJSON(append ( list(identifiers), list(Identifiers) ))
} else{
stop("The parameter='format' must be either 'list' or 'json'")
}
}
#' @importFrom jsonlite fromJSON
#' @importFrom glue glue
#' @keywords internal
validate_identifier <- function (Identifier) {
allowed_identifier_types <- c("id", "dataset_code", "URI", "DOI", "Version", "idAtSource", "Other")
allowed_types <- paste(allowed_identifier_types, collapse = ", ")
error_msg_wrong_parameters <- glue::glue(
"The identifier object may have the following fields:{ allowed_types }.")
error_msg_few_parameters <- glue::glue(
"The identifier object may have at least two of the following fields:{ allowed_types }.")
if ( is.json(Identifier) ) {
identifier_list <- jsonlite::fromJSON(Identifier)
} else {
identifier_list <- Identifier
}
assertthat::assert_that(is.list(identifier_list),
msg = "The identifier must be given as a list or a json object.")
assertthat::assert_that(length(identifier_list)>1,
msg = error_msg_few_parameters)
not_allowed_id <- names(identifier_list) [! names(identifier_list) %in% allowed_identifier_types]
error_msg_wrong_id <- glue::glue("{not_allowed_id} is not among allowed fields:{ allowed_types }.")
assertthat::assert_that(
length(not_allowed_id)==0,
msg = error_msg_wrong_id )
}
#' @title Add related item
#'
#' @description Add observation status coding, such as actual, missing, estimated or
#' imputed values to a dataset.
#'
#' @details
#' In Dublin Core, Relation:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Optional Properties, relatedItem:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties}{DataCite Metadata Schema v4.4 Recommended and Optional Properties}
#'
#' @param relatedItem The human readable title or name of the award (grant) as a character string.
#' @param relationType Any of \code{isCitedBy}, \code{Cites}, \code{isSupplementTo}, \code{IsSupplementedBy}, \code{IsDerivedFrom}, \code{isSupplementedBy}, \code{isNewVersionOf}, \code{isPreviousVersionOf}, \code{IsOriginalFormOf}, \code{IsVariantFormOf}, \code{Documents}, \code{IsDocumentedBy}, \code{References}, \code{IsReferencedBy}, \code{IsPublishedIn}, \code{IsPreviousVersionOf}, \code{IsNewVersionOf}, \code{IsVersionOf}, \code{HasVersion}, \code{IsMetadataFor}, \code{HasMetadata}, \code{isPartOf}, \code{IsSourceOf}, \code{hasPart}, \code{compiles}, \code{isCompiledBy}, \code{isIdenticalTo}, \code{isAlternateIdentifier}, \code{Obsoletes}, \code{IsObsoletedBy}, \code{Requires}, \code{IsRequiredBy}, \code{Reviews}, \code{IsReviewedBy}. \cr
#' @param relatedItemType \code{Audiovisual}, \code{Book}, \code{BookChapter}, \code{Collection}, \code{ComputationalNotebook}, \code{ConferencePaper}, \code{ConferenceProceeding}, \code{DataPaper}, \code{Dataset}, \code{Dissertation}, \code{Event}, \code{Image}, \code{InteractiveResource}, \code{Journal}, \code{JournalArticle}, \code{Model}, \code{OutputManagementPlan}, \code{PeerReview}, \code{PhysicalObject}, \code{Preprint}, \code{Report}, \code{Service}, \code{Software}, \code{Sound}, \code{Standard}, \code{Text}, \code{Workflow}, \code{Other}
#'
#' @param relatedItemIdentifer An Identifier created by
#' \code{\link{add_identifiers}}.
#' @importFrom jsonlite toJSON
#' @examples
#' first_rel_item <- add_related_items (
#' RelatedItem = "First Related Item",
#' relatedItemType = "Dataset",
#' relationType = "IsDerivedFrom",
#' relatedItemIdentifier = add_identifiers (id = "first_rel_item"),
#' related_items = NULL,
#' format = 'json' )
#'
#' add_related_items (
#' RelatedItem = "Second Related Item",
#' relatedItemType = "Dataset",
#' relationType = "IsDerivedFrom",
#' relatedItemIdentifier = add_identifiers (id = "second_rel_item"),
#' related_items = first_rel_item,
#' format = 'json' )
#' @export
add_related_items <- function (
RelatedItem,
relatedItemType = "Dataset",
relationType = "IsDerivedFrom",
relatedItemIdentifier,
related_items = NULL,
format = 'json' ) {
resource_types <- resource_types_datacite()
relation_types <- relation_type_datacite()
validate_identifier(Identifier = relatedItemIdentifier)
not_one_of_relations <- paste (relation_types, collapse = ", ")
assertthat::assert_that(
length(relationType) == 1 & relatedItemType %in% resource_types,
msg = glue::glue("relatedItemType must be one of {not_one_of_relations}")
)
assertthat::assert_that(
length(relationType) == 1 & relationType %in% relation_types,
msg = glue::glue("relationType must be one of {not_one_of_relations}")
)
RelatedItem <- list (
RelatedItem = RelatedItem,
relatedItemType = relatedItemType,
relationType = relationType,
relatedItemIdentifier = relatedItemIdentifier
)
if ( !is.null(related_items) ) {
if (all(vapply(related_items, is.json, logical(1)))) {
assertthat::assert_that(
all(vapply(related_items, validate_related_item, logical(1))),
msg = "Every related item must be strictly formatted."
)
if ( is.json(related_items) ) {
related_items <- jsonlite::fromJSON(related_items)
}
}
}
if ( format == "list") {
append ( list(related_items), list(RelatedItem) )
} else if ( format=="json") {
jsonlite::toJSON(append ( list(related_items), list(RelatedItem) ))
} else{
stop("The parameter='format' must be either 'list' or 'json'")
}
}
#' @inheritParams add_related_items
#' @importFrom jsonlite fromJSON
#' @importFrom assertthat assert_that
#' @keywords internal
validate_related_item <- function(RelatedItem) {
if (is.json(RelatedItem)) RelatedItem <- jsonlite::fromJSON(RelatedItem)
related_item_fields <- c("RelatedItem", "relatedItemType", "relationType", "relatedItemIdentifier")
assertthat::assert_that(
all(names (RelatedItem) %in% related_item_fields),
msg = paste0("The related items must have the following fields: ",
paste(related_item_fields, collapse = ", "))
)
}
#' @title Add Titles
#'
#' @description Add a main title, and optional subtitle, alternative- or translated title,
#' or other title.
#'
#' @details
#' Dublin Core:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Mandatory Properties:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-mandatory-properties}{DataCite Metadata Schema v4.4 Mandatory Properties}
#'
#' The \code{Title} field is mandatory in both DataCite and Dublin Core. DataCite allows multiple
#' titles to be used, these can be added as a list.
#'
#'
#' @param title A character string containing the title of the Dataset.
#' It is mandatory and has no default value. This is part of the Dublin Core and
#' DataCite mandatory fields.
#' @param AlternativeTitle Defaults to \code{NULL}, and it is part of the optional
#' fields of DataCite.
#' @param Subtitle Defaults to \code{NULL}.
#' @param TranslatedTitle Defaults to \code{NULL}.
#' @param Other Defaults to \code{NULL}. Try avoiding its use.
#' @param titles A list of earlier set title(s).
#' @inheritParams add_creators
#' @family descriptive_metadata functions
#' @return A list of titles.
#' @examples{
#' add_titles(title = "My Title",
#' AlternativeTitle = "Alternative Title",
#' Subtitle = "This is a subtitle",
#' TranslatedTitle = "Meine Titel",
#' Other = "Other title")
#' }
#' @export
add_titles <- function (Title = NULL,
AlternativeTitle = NULL,
Subtitle = NULL,
TranslatedTitle = NULL,
Other = NULL,
titles = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list' or 'json'."
)
if ( is.null(Title)) {
# This can be used to add further titles, if titles already exists
if (is.null(titles)) {
stop("The main Title field must not be left empty.")
}
} else {
title <- snakecase::to_title_case(as.character(Title))
titles <- list ( Title = Title )
}
if ( !is.null(AlternativeTitle)) titles$AlternativeTitle <- AlternativeTitle
if ( !is.null(Subtitle)) titles$Subtitle <- Subtitle
if ( !is.null(TranslatedTitle)) titles$TranslatedTitle <- TranslatedTitle
if ( !is.null(Other)) titles$Other <- Other
if (format=="json") {
jsonlite::toJSON(titles)
} else {
titles
}
}
#' @title Add Dates
#'
#' @description Add dates to the administrative and descriptive metadata.
#'
#' @details See the controlled date items in
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties#8a-datetype}{DataCite Metaadata Schema 4.4}.
#'#'
#' @param Date The main date of the resource, unless otherwise stated, should equal
#' first issue.
#' @param Updated The date of the last update to the resource, when the resource is being added to. May be a range.
#' @param UpdatedAtSource The date of the last update to the resource at its original source. May be a range.
#' @param StructuralChangeAtSource The date of the last structural data chanage at source.
#' @param FirstObservation The date of the first actual observation (which is not estimated.)
#' @param LastObservation The date of the last actual observation (which is not forecasted.)
#' @param Accepted The date that the publisher accepted the resource into their system.
#' To indicate the start of an embargo period, use Submitted or Accepted, as appropriate.
#' @param Available The date the resource is made publicly available. May be a range.
#' To indicate the end of an embargo period, use Available.
#' @param Copyrighted The specific, documented date at which the resource receives
#' a copyrighted status, if applicable.
#' @param Collected The date or date range in which the resource content was collected.
#' To indicate precise or particular timeframes in which research was conducted.
#' @param Created The date the resource itself was put together;
#' this could refer to a timeframe in ancient history, be a date range or a single date for a final component,
#' e.g., the finalized file with all of the data.
#' Recommended for discovery.
#' @param Issued The date that the resource is published or distributed e.g. to a data centre.
#' @param Submitted The date the creator submits the resource to the publisher.
#' This could be different from Accepted if the publisher then applies a selection process.
#' To indicate the start of an embargo period, use Submitted or Accepted, as appropriate.
#' Recommended for discovery.
#' @param Valid The date or date range during which the dataset or resource is accurate.
#' @param Withdrawn The date the resource is removed. It's good practice to indicate the reason for retraction
#' of withdrawal in the descriptionType.
#' @param format format Defaults to \code{'json'}, in which case a JSON-formatted single character
#' string is returned. The alternative is \code{'list'} or \code{'character'} (for single Date only.)
#' @examples
#' add_dates()
#' @export
add_dates <- function ( Date = Sys.Date(),
Updated = Sys.Date(),
UpdatedAtSource = NULL,
Collected = NULL,
EarliestObservation = NULL,
LatestObservation = NULL,
StructuralChangeAtSource = NULL,
Accepted = NULL,
Available = NULL,
Created = NULL,
Copyrighted = NULL,
Issued = NULL,
Submitted = NULL,
Valid = NULL,
Withdrawn = NULL,
dates = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list','json' or 'character'."
)
if ( is.null(Date)) {
# This can be used to add further titles, if titles already exists
if (is.null(dates)) {
stop("The main Date field must not be left empty.")
}
} else {
Updated <- as.character(Updated)
dates <- list ( Updated = Updated )
}
if (!is.null(UpdatedAtSource)) dates$UpdatedAtSource <- UpdatedAtSource
if (!is.null(Collected)) dates$Collected <- Collected
if (!is.null(EarliestObservation)) dates$EarliestObservation <- EarliestObservation
if (!is.null(LatestObservation)) dates$LatestObservation <- LatestObservation
if (!is.null(LatestObservation)) dates$LatestObservation <- LatestObservation
if (!is.null(Accepted)) dates$Accepted <- Accepted
if (!is.null(Copyrighted)) dates$Copyrighted <- Copyrighted
if (!is.null(Issued)) dates$Issued <- Issued
if (!is.null(Submitted)) dates$Submitted <- Submitted
if (!is.null(Valid)) dates$Valid <- Valid
if (!is.null(Withdrawn)) dates$Withdrawn <- Withdrawn
if (format=="json") {
jsonlite::toJSON(dates)
} else if (format=="list") {
dates
} else {
as.character(Updated)
}
}
#' @title Add Rights
#'
#' @description Add access rights information to the metadata.
#' @details
#' In Dublin Core, Rights Management:
#' \href{https://www.dublincore.org/specifications/dublin-core/cross-domain-attribute/}{A Cross-Domain Attribute Set}
#'
#' DataCite Metadata Schema Optional Properties, Rights:
#' \href{https://support.datacite.org/docs/datacite-metadata-schema-v44-recommended-and-optional-properties}{DataCite Metadata Schema v4.4 Recommended and Optional Properties}
#'
#'
#' Usually you do not have to fill in \code{rigthsURI}. We only use
#' standard rights definitions in \href{https://spdx.org/licenses/}{SPDX License List}.
#'
#'
#' @param rightsIdentifier An identifier of the applicable use right, defaults to
#' \code{'CC-BY-NC-SA-4.0'}.
#' \href{https://spdx.org/licenses/}{SPDX License List}
#' @param rigthsURI A URL to the definition of the rigth. Automatically created from
#' \href{https://spdx.org/licenses/}{SPDX License List}.
#' Defaults to \code{NULL}, when the download will be called with \code{id}.
#' @inheritParams add_creators
#' @examples
#' add_rights( 'CC-BY-NC-SA-4.0')
#' @export
add_rights <- function ( rightsIdentifier = 'CC-BY-NC-SA-4.0',
rightsURI = NULL,
format = "json") {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list','json' or 'character'."
)
if (is.null(rightsURI)) {
rightsURL <- glue::glue("https://spdx.org/licenses/{rightsIdentifier}.html")
} else {
rightURL <- rightsURI
}
assertthat::assert_that(
RCurl::url.exists(rightsURL),
msg = glue::glue("The rigthsURI={rightsURL} is not available")
)
Rigths <- list ( rightsIdentifier = 'CC-BY-NC-SA-4.0',
rightsURI = rightsURL)
if ( format == "list") {
Rigths
} else {
jsonlite::toJSON(Rigths)
}
}
#' @title Add Size
#'
#' @description Add the file size of the dataset (in CSV format.)
#' @details The file will be written to a temporary directory and its sized measured.
#' It also serves validation purposes for the dataset.
#' @param dat The dataset that needs size information.
#' @return A string explaining the file size in CSV format.
#' @family descriptive_metadata functions
#' @export
add_size <- function(dat) {
tmp <- tempfile()
write.csv(dat, tmp)
size_value <- paste0( file.size(tmp), " bytes in CSV format")
file.remove(tmp)
size_value
}
#' @title Add Geolocation
#'
#' @description Add the spatial region or named place where
#' the data was gathered or about which the data is focused.
#'
#' @param dat The dataset that needs size information.
#' @param geo_var Defaults to \code{geo}.
#' @inheritParams add_creators
#' @family descriptive_metadata functions
#' @return A string explaining the file size in CSV format.
#' @export
add_geolocation <- function(dat,
geo_var = 'geo',
geo_name_var = NULL,
format = 'json') {
assertthat::assert_that(
format %in% c("list", "json"),
msg = "The 'format' parameter must be either 'list','json' or 'character'."
)
geoLocationPlace <- NA_character_
geoCodes <- NA_character_
if (!is.null(geo_name_var)) {
if ( geo_name_var %in% names(dat)) {
geoLocationPlace <- paste(unique(as.character(unlist(dat[, geo_name_var]))), collapse="|")
}
}
if ( geo_var %in% names(dat)) {
geoCodes = paste(unique(as.character(unlist(dat[, geo_var]))), collapse="|")
}
GeoLocation <-list ( geoLocationPlace = geoLocationPlace,
geoCodes = geoCodes )
if ( format == "list") {
GeoLocation
} else {
jsonlite::toJSON(GeoLocation)
}
}
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