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#' ISOFormat
#'
#' @docType class
#' @importFrom R6 R6Class
#' @export
#' @keywords ISO format
#' @return Object of \code{\link{R6Class}} for modelling an ISOFormat
#' @format \code{\link{R6Class}} object.
#'
#' @examples
#' md <- ISOFormat$new()
#' md$setName("name")
#' md$setVersion("1.0")
#' md$setAmendmentNumber("2")
#' md$setSpecification("specification")
#'
#' @references
#' ISO 19115:2003 - Geographic information -- Metadata
#'
#' @author Emmanuel Blondel <emmanuel.blondel1@@gmail.com>
#'
ISOFormat <- R6Class("ISOFormat",
inherit = ISOAbstractObject,
private = list(
xmlElement = "MD_Format",
xmlNamespacePrefix = "GMD"
),
public = list(
#'@field name name : CharacterString
name = NULL,
#'@field version version : CharacterString
version = NULL,
#'@field amendmentNumber amendmentNumber [0..1] : CharacterString
amendmentNumber = NULL,
#'@field specification specification [0..1] : CharacterString
specification = NULL,
#'@field fileDecompressionTechnique fileDecompressionTechnique [0..1] : CharacterString
fileDecompressionTechnique = NULL,
#'@field FormatDistributor FormatDistributor [0..*]: ISODistributor
FormatDistributor = list(),
#'@description Initializes object
#'@param xml object of class \link{XMLInternalNode-class}
initialize = function(xml = NULL){
super$initialize(xml = xml)
},
#'@description Set name
#'@param name name
#'@param locales list of localized names. Default is \code{NULL}
setName = function(name, locales = NULL){
self$name <- name
if(!is.null(locales)){
self$name <- self$createLocalisedProperty(name, locales)
}
},
#'@description Set version
#'@param version version
setVersion = function(version){
self$version <- as.character(version)
},
#'@description Set amendment number
#'@param amendmentNumber amendment number
setAmendmentNumber = function(amendmentNumber){
self$amendmentNumber <- as.character(amendmentNumber)
},
#'@description Set specification
#'@param specification specification
#'@param locales list of localized specifications. Default is \code{NULL}
setSpecification = function(specification, locales = NULL){
self$specification <- specification
if(!is.null(locales)){
self$specification <- self$createLocalisedProperty(specification, locales)
}
},
#'@description Set file decompression technique
#'@param technique technique
setFileDecompressionTechnique = function(technique){
self$fileDecompressionTechnique = as.character(technique)
},
#'@description Adds distributor
#'@param distributor object of class \link{ISODistributor}
#'@return \code{TRUE} if added, \code{FALSE} otherwise
addDistributor = function(distributor){
if(!is(distributor, "ISODistributor")){
stop("The argument value should an object of class 'ISODistributor")
}
return(self$addListElement("FormatDistributor", distributor))
},
#'@description Deletes distributor
#'@param distributor object of class \link{ISODistributor}
#'@return \code{TRUE} if deleted, \code{FALSE} otherwise
delDistributor = function(distributor){
if(!is(distributor, "ISODistributor")){
stop("The argument value should an object of class 'ISODistributor")
}
return(self$delListElement("FormatDistributor", distributor))
}
)
)
ISOFormat$buildFrom = function(mimetype){
mimetypes = getIANAMimeTypes()
mime = mimetypes[mimetypes$name == mimetype,]
format = ISOFormat$new()
format$setVersion(NA)
if(!is.null(mime)){
if(nrow(mime)>0){
format$setName(ISOAnchor$new(name = mimetype, href = mime$uri))
if(!is.na(mime$rfc)){
format$setSpecification(ISOAnchor$new(name = toupper(mime$rfc), href = mime$rfc_uri))
}
}else{
format$setName(mimetype)
}
}else{
format$setName(mimetype)
}
return(format)
}
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