loadFromUrl: Functions to load files from a web site

In Resourcerer: Reads annotation data from TIGR Resourcerer or convert the annotation data into Bioconductor data pacakge.

Description

Given an url, these functions download a file from a given web site and unzip the file if it is compressed.

Usage

loadFromUrl(srcUrl, destDir = "", verbose=FALSE)
validateUrl(srcUrl)
unzipFile(fileName, where = file.path(path.package("Resourcerer"),
"temp"), isgz = FALSE)

Arguments

srcUrl	srcUrl a character string for the url of the file to be downloaded
destDir	destDir a character string for a loacal directory where the file to be downloaded will be saved
where	where same as destDir
isgz	isga a boolean indicating whether the downloaded file is a gz file
fileName	fileName a character string for the name of a file
verbose	A booline indicating whether to print extra information.

Details

These functions used to be part of the AnnBuilder package which was replaced by AnnotationDbi.If the file is compressed, decompressing will be applied and the path for the decompressed file will be returned.

validateUrl will terminate the process if an invalid url is passed.

unzipFile decompress the file passed as fileName.

Value

loadFromUrl returns a character string for the name of the file saved locally.

Author(s)

Jianhua Zhang

Examples

## Not run: 
# Get a dummy data file from Bioconductor web site
data <-
loadFromUrl("http://www.bioconductor.org/datafiles/wwwsources/Tll_tmpl.gz",
destDir = "")
unlink(data)

## End(Not run)

Resourcerer documentation built on Sept. 12, 2016, 6:12 a.m.