/// <summary>Associate the FITS object with a file or URL.
/// *
/// The string is assumed to be a URL if it begins with
/// http: otherwise it is treated as a file name.
/// If the string ends in .gz it is assumed that
/// the data is in a compressed format.
/// All string comparisons are case insensitive.
/// *
/// </summary>
/// <param name="filename">The name of the file or URL to be processed.</param>
/// <exception cref=""> FitsException Thrown if unable to find or open
/// a file or URL from the string given.</exception>
public Fits(String filename)
{
InitBlock();
//Stream inp;
if (filename == null)
{
throw new FitsException("Null FITS Identifier String");
}
bool compressed = FitsUtil.IsCompressed(filename);
int len = filename.Length;
if (len > 4 && filename.Substring(0, (5) - (0)).ToUpper().Equals("http:".ToUpper()))
{
// This seems to be a URL.
System.Uri myURL;
try
{
//UPGRADE_TODO: Class 'java.net.URL' was converted to a 'System.Uri' which does not throw an exception if a URL specifies an unknown protocol. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1132"'
myURL = new Uri(filename);
}
catch (IOException)
{
throw new FitsException("Unable to convert string to URL: " + filename);
}
try
{
Stream is_Renamed = System.Net.WebRequest.Create(myURL).GetResponse().GetResponseStream();
streamInit(is_Renamed, compressed, false);
}
catch (IOException e)
{
throw new FitsException("Unable to open stream from URL:" + filename + " Exception=" + e);
}
}
else if (compressed)
{
fileInit(new FileInfo(filename), true);
}
else
{
randomInit(filename);
}
}
/// <summary>Associate the FITS object with a given uncompressed URL</summary>
/// <param name="myURL">The URL to be associated with the FITS file.</param>
/// <exception cref="FitsException">Thrown if unable to use the specified URL.</exception>
public Fits(Uri myURL) : this(myURL, FitsUtil.IsCompressed(myURL.AbsoluteUri))
{
}
/// <summary>
/// Asscoiates a fits object with a file specified by the Fileaccess parameter
/// </summary>
/// <param name="filename"></param>
/// <param name="access"></param>
public Fits(String filename, FileAccess access)
: this(filename, FitsUtil.IsCompressed(filename), access)
{
InitBlock();
}
/// <summary>Associate the FITS object with a file or URL.
/// *
/// The string is assumed to be a URL if it begins one of the
/// protocol strings.
/// If the string ends in .gz it is assumed that
/// the data is in a compressed format.
/// All string comparisons are case insensitive.
/// *
/// </summary>
/// <param name="filename">The name of the file or URL to be processed.</param>
/// <exception cref=""> FitsException Thrown if unable to find or open
/// a file or URL from the string given.</exception>
public Fits(String filename) : this(filename, FitsUtil.IsCompressed(filename), FileAccess.ReadWrite)
{
InitBlock();
}
/// <summary>Associate the FITS object with a given uncompressed URL</summary>
/// <param name="myURL">The URL to be associated with the FITS file.</param>
/// <exception cref="">FitsException Thrown if unable to use the specified URL.</exception>
public Fits(Uri myURL) : this(myURL, FitsUtil.IsCompressed(myURL.AbsolutePath))
{
InitBlock();
}