\name{loadFromUrl}
\alias{loadFromUrl}
\alias{validateUrl}
\alias{unzipFile}
\title{Functions to load files from a web site}
\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{
  \item{srcUrl}{\code{srcUrl} a character string for the url of the file
    to be downloaded}
  \item{destDir}{\code{destDir} a character string for a loacal
    directory where the file to be downloaded will be saved}
  \item{where}{\code{where} same as destDir}
  \item{isgz}{\code{isga} a boolean indicating whether the downloaded
    file is a gz file}
  \item{fileName}{\code{fileName} a character string for the name of a
    file} 
  \item{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.

  \code{\link{validateUrl}} will terminate the process if an invalid url
  is passed.

  \code{\link{unzipFile}} decompress the file passed as fileName.
}
\value{
  \code{\link{loadFromUrl}} returns a character string for the name of
  the file saved locally.
}
\author{Jianhua Zhang}

\examples{
\dontrun{
# Get a dummy data file from Bioconductor web site
data <-
loadFromUrl("http://www.bioconductor.org/datafiles/wwwsources/Tll_tmpl.gz",
destDir = "")
unlink(data)
}
}
\keyword{manip}