R6 metadata class

R6 class that represents metadata in DwC

Format

R6Class object.

Details

The DwCMetadata class exists as a handling class for the encapsulation and handling of metadata being presented

Methods

Public methods

• DwCMetadata$importFromLivingNorwayHTML()

• DwCMetadata$importFromLivingNorwayRMD()

• DwCMetadata$importFromEML()

• DwCMetadata$importFromDwCArchive()

• DwCMetadata$exportToEML()

• DwCMetadata$new()

• DwCMetadata$print()

• DwCMetadata$getTitle()

• DwCMetadata$getCreatorInfo()

• DwCMetadata$getAbstract()

• DwCMetadata$clone()

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Method importFromLivingNorwayHTML()

Retrieve metadata information from a HTML file that has been created with a Living Norway HTML tag schema

Usage

DwCMetadata$importFromLivingNorwayHTML(fileLocation, fileEncoding = "", ...)

Arguments

fileLocation

A character scalar containing the location of the HTML file

fileEncoding

A character scalar. If non-empty, declares the encoding to be used on a file so the character data can be re-encoded as they are written

...

A set of arguments to be passed to the xml_new_root function to define namespace information. The values returned by the helper function getDefaultEMLDefinitionInfo will be used unless overwritten by user input here. In addition, arguments required by the EML standard but not provided here (such as the packageID attribute) will be otherwise auto-generated

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Method importFromLivingNorwayRMD()

Retrieve metadata information from a RMD file that has been created with a Living Norway HTML tag schema

Usage

DwCMetadata$importFromLivingNorwayRMD(fileLocation, fileEncoding = "", ...)

Arguments

fileLocation

A character scalar containing the location of the RMD file

fileEncoding

A character string. If non-empty, declares the encoding to be used on a file so the character data can be re-encoded as they are written

...

A set of arguments to be passed to the xml_new_root function to define namespace information. The values returned by the helper function getDefaultEMLDefinitionInfo will be used unless overwritten by user input here. In addition, arguments required by the EML standard but not provided here (such as the packageID attribute) will be otherwise auto-generated

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Method importFromEML()

Retrieve metadata information from an Ecological Metadata Language (EML) file

Usage

DwCMetadata$importFromEML(fileLocation, fileEncoding = "")

Arguments

fileLocation

A character scalar containing the location of the RMD file

fileEncoding

A character string. If non-empty, declares the encoding to be used on a file so the character data can be re-encoded as they are written

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Method importFromDwCArchive()

Retrieve metadata information from a Darwin Core archive file

Usage

DwCMetadata$importFromDwCArchive(fileLocation, fileEncoding = "")

Arguments

fileLocation

A character scalar containing the location of the RMD file

fileEncoding

A character string. If non-empty, declares the encoding to be used on a file so the character data can be re-encoded as they are written

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Method exportToEML()

Export the metadata as an EML XML file

Usage

DwCMetadata$exportToEML(fileLocation, fileEncoding = "")

Arguments

fileLocation

A character scalar containing the location to store the EML fiøe

fileEncoding

A character string. If non-empty, declares the encoding to be used on a file so the character data can be re-encoded as they are written

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Method new()

Initialise a metadata object from an import file

Usage

DwCMetadata$new(fileLocation, fileEncoding = "", fileType = NA, ...)

Arguments

fileLocation

A character scalar containing the location of the import file

fileEncoding

A character string. If non-empty, declares the encoding to be used on a file so the character data can be re-encoded as they are written

fileType

A character scalar stating the type of the file. File type can be either "rmarkdown", "html", "eml", or "darwincore". If NA then the file type will be determined from the file extension

...

A set of arguments to be passed to the xml_new_root function to define namespace information. The values returned by the helper function getDefaultEMLDefinitionInfo will be used unless overwritten by user input here. In addition, arguments required by the EML standard but not provided here (such as the packageID attribute) will be otherwise auto-generated

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Method print()

Print the metadata information to the console

Usage

DwCMetadata$print()

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Method getTitle()

Retrieve the title of the dataset

Usage

DwCMetadata$getTitle(lang = NA)

Arguments

lang

A character scalar that specifies the language of the title to return. This is useful when the title has multiple translations in the metadata

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Method getCreatorInfo()

Retrieve the information of the dataset creators

Usage

DwCMetadata$getCreatorInfo(lang = NA)

Arguments

lang

A character scalar that specifies the language of the elements to return. This is useful when the elements have multiple translations in the metadata

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Method getAbstract()

Retrieve the dataset abstract

Usage

DwCMetadata$getAbstract(lang = NA)

Arguments

lang

A character scalar that specifies the language of the elements to return. This is useful when the elements have multiple translations in the metadata

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Method clone()

The objects of this class are cloneable with this method.

Usage

DwCMetadata$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.