public static IBlockDevice Create(Uri.Locator resource)
{
IBlockDevice result = BlockDevice.Open(resource, System.IO.FileMode.Create);
if (result.IsNull() && resource.NotNull())
{
System.IO.Directory.CreateDirectory(resource.Path.FolderPath.PlatformPath);
result = BlockDevice.Open(resource, System.IO.FileMode.Create);
}
return(result);
}
static IBlockDevice Open(Uri.Locator resource, System.IO.FileMode mode)
{
IBlockDevice result = null;
if (resource.NotNull())
{
switch (resource.Scheme)
{
case "assembly":
result = resource.Authority == "" ? BlockDevice.Open(System.Reflection.Assembly.GetEntryAssembly(), resource.Path) : BlockDevice.Open(System.Reflection.Assembly.Load(new System.Reflection.AssemblyName(resource.Authority)), resource.Path);
break;
case "file":
try
{
System.IO.FileStream stream = System.IO.File.Open(System.IO.Path.GetFullPath(resource.PlatformPath), mode, System.IO.FileAccess.ReadWrite, System.IO.FileShare.ReadWrite);
if (stream.NotNull())
{
result = new BlockDevice(stream, resource);
}
}
catch (System.IO.DirectoryNotFoundException)
{
result = null;
}
catch (System.IO.FileNotFoundException)
{
result = null;
}
break;
case "http":
case "https":
if (mode == System.IO.FileMode.Open)
{
// TODO: support http and https.
}
break;
}
}
return(result);
}
public static IBlockDevice Open(Uri.Locator resource)
{
return(BlockDevice.Open(resource, System.IO.FileMode.Open));
}
static IBlockDevice Open(Uri.Locator resource, System.IO.FileMode mode)
{
IBlockDevice result = null;
if (resource.NotNull())
switch (resource.Scheme)
{
case "assembly":
result = resource.Authority == "" ? BlockDevice.Open(System.Reflection.Assembly.GetEntryAssembly(), resource.Path) : BlockDevice.Open(System.Reflection.Assembly.Load(new System.Reflection.AssemblyName(resource.Authority)), resource.Path);
break;
case "file":
try
{
System.IO.FileStream stream = System.IO.File.Open(System.IO.Path.GetFullPath(resource.PlatformPath), mode, System.IO.FileAccess.ReadWrite, System.IO.FileShare.ReadWrite);
if (stream.NotNull())
result = new BlockDevice(stream) { Resource = resource };
}
catch (System.IO.DirectoryNotFoundException)
{
result = null;
}
catch (System.IO.FileNotFoundException)
{
result = null;
}
break;
case "http":
case "https":
if (mode == System.IO.FileMode.Open)
{
try
{
using (System.Net.WebClient client = new System.Net.WebClient())
result = new BlockDevice(new System.IO.MemoryStream(client.DownloadData(resource))) {
Resource = resource,
FixedLength = true
};
}
catch (System.Net.WebException)
{
result = null;
}
}
break;
}
return result;
}