DatasetNode {thredds}

A class for a single datatset reference

Description

A direct Dataset representation that subclasses from ThreddsNode

Super class

thredds::ThreddsNode -> DatasetNode

Public fields

name

character, often the filename

dataSize

numeric, size in bytes

date

character, modification date

Methods

Public methods

• DatasetNode$new()

• DatasetNode$GET()

• DatasetNode$get_url()

• DatasetNode$list_access()

• DatasetNode$print()

• DatasetNode$clone()

Inherited methods

• thredds::ThreddsNode$browse()
• thredds::ThreddsNode$children_names()

Method new()

initialize an instance of ServiceNode

Usage

DatasetNode$new(x, ...)

Arguments

x

url or xml2::xml_node

...

arguments for superclass initialization

Method GET()

Overrides the GET method of the superclass. GET is not permitted

Usage

DatasetNode$GET()

Returns

NULL

Method get_url()

Retrieve the relative URL for a dataset.

Usage

DatasetNode$get_url(
  service = c("dap", "opendap", "wms")[1],
  sep = c("/", "")[2],
  ...
)

Arguments

service

character, the service to use. (default 'dap' equivalent to 'opendap') Ignored if ‘urlPath' or 'href' is in the nodes’ attributes.

sep

character, typically "/" or "" (default), used for joined base_url to relative url

...

other arguments for DatasetNode$list_access

Returns

character

Method list_access()

list access methods

Usage

DatasetNode$list_access(xpath = build_xpath("access", prefix = self$prefix))

Arguments

xpath

charcater, xpath descriptor

Returns

named list of character vectors or NULL

Method print()

print method

Usage

DatasetNode$print(prefix = "")

Arguments

prefix

character, to be printed before each line of output (like spaces)

...

other arguments for superclass

Method clone()

The objects of this class are cloneable with this method.

Usage

DatasetNode$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Note

For examples see CatalogNode