private string GetProviderRootFromSpecifiedRoot(string root, ProviderInfo provider)
{
string str = root;
SessionState state = new SessionState(this._context.TopLevelSessionState);
Collection<string> resolvedProviderPathFromPSPath = null;
ProviderInfo info = null;
try
{
resolvedProviderPathFromPSPath = state.Path.GetResolvedProviderPathFromPSPath(root, out info);
if (((resolvedProviderPathFromPSPath != null) && (resolvedProviderPathFromPSPath.Count == 1)) && provider.NameEquals(info.FullName))
{
ProviderIntrinsics intrinsics = new ProviderIntrinsics(this);
if (intrinsics.Item.Exists(root))
{
str = resolvedProviderPathFromPSPath[0];
}
}
}
catch (LoopFlowException)
{
throw;
}
catch (PipelineStoppedException)
{
throw;
}
catch (ActionPreferenceStopException)
{
throw;
}
catch (System.Management.Automation.DriveNotFoundException)
{
}
catch (ProviderNotFoundException)
{
}
catch (ItemNotFoundException)
{
}
catch (NotSupportedException)
{
}
catch (InvalidOperationException)
{
}
catch (ProviderInvocationException)
{
}
catch (ArgumentException)
{
}
return str;
}
/// <summary>
/// Tries to resolve the drive root as an MSH path. If it successfully resolves
/// to a single path then the resolved provider internal path is returned. If it
/// does not resolve to a single MSH path the root is returned as it was passed.
/// </summary>
///
/// <param name="root">
/// The root path of the drive to be resolved.
/// </param>
///
/// <param name="provider">
/// The provider that should be used when resolving the path.
/// </param>
///
/// <returns>
/// The new root path of the drive.
/// </returns>
///
private string GetProviderRootFromSpecifiedRoot(string root, ProviderInfo provider)
{
Dbg.Diagnostics.Assert(
root != null,
"Caller should have verified the root");
Dbg.Diagnostics.Assert(
provider != null,
"Caller should have verified the provider");
string result = root;
SessionState sessionState = new SessionState(ExecutionContext.TopLevelSessionState);
Collection<string> resolvedPaths = null;
ProviderInfo resolvedProvider = null;
try
{
// First try to resolve the root as an MSH path
resolvedPaths =
sessionState.Path.GetResolvedProviderPathFromPSPath(root, out resolvedProvider);
// If a single path was resolved...
if (resolvedPaths != null &&
resolvedPaths.Count == 1)
{
// and the provider used to resolve the path,
// matches the one specified by the drive...
if (provider.NameEquals(resolvedProvider.FullName))
{
// and the item exists
ProviderIntrinsics providerIntrinsics =
new ProviderIntrinsics(this);
if (providerIntrinsics.Item.Exists(root))
{
// then use the resolved path as the root of the drive
result = resolvedPaths[0];
}
}
}
}
catch (LoopFlowException)
{
throw;
}
catch (PipelineStoppedException)
{
throw;
}
catch (ActionPreferenceStopException)
{
throw;
}
// If any of the following exceptions are thrown we assume that
// the path is a file system path not an MSH path and try
// to create the drive with that root.
catch (DriveNotFoundException)
{
}
catch (ProviderNotFoundException)
{
}
catch (ItemNotFoundException)
{
}
catch (NotSupportedException)
{
}
catch (InvalidOperationException)
{
}
catch (ProviderInvocationException)
{
}
catch (ArgumentException)
{
}
return result;
} // GetProviderRootFromSpecifiedRoot