/// <summary>
/// Returns a list of valid runspaces based on current parameter set.
/// </summary>
/// <returns>IReadOnlyList.</returns>
protected IReadOnlyList <Runspace> GetRunspaces()
{
IReadOnlyList <Runspace> results = null;
if ((ParameterSetName == CommonRunspaceCommandBase.RunspaceNameParameterSet) && ((RunspaceName == null) || RunspaceName.Length == 0))
{
results = GetRunspaceUtils.GetAllRunspaces();
}
else
{
switch (ParameterSetName)
{
case CommonRunspaceCommandBase.RunspaceNameParameterSet:
results = GetRunspaceUtils.GetRunspacesByName(RunspaceName);
break;
case CommonRunspaceCommandBase.RunspaceIdParameterSet:
results = GetRunspaceUtils.GetRunspacesById(RunspaceId);
break;
case CommonRunspaceCommandBase.RunspaceParameterSet:
results = new ReadOnlyCollection <Runspace>(new List <Runspace>(Runspace));
break;
case CommonRunspaceCommandBase.RunspaceInstanceIdParameterSet:
results = GetRunspaceUtils.GetRunspacesByInstanceId(RunspaceInstanceId);
break;
}
}
return(results);
}
/// <summary>
/// Transforms the input data to a Runspace.
/// </summary>
/// <param name="engineIntrinsics">
/// The engine APIs for the context under which the transformation is being
/// made.
/// </param>
/// <param name="inputData">
/// If a string, the transformation uses the input as the runspace name.
/// If an int, the transformation uses the input as the runspace ID.
/// If a guid, the transformation uses the input as the runspace GUID.
/// If already a Runspace, the transform does nothing.
/// </param>
/// <returns>A runspace object representing the inputData.</returns>
public override object Transform(EngineIntrinsics engineIntrinsics, object inputData)
{
if (engineIntrinsics?.Host?.UI == null)
{
throw PSTraceSource.NewArgumentNullException("engineIntrinsics");
}
if (inputData == null)
{
return(null);
}
// Try to coerce the input as a runspace
Runspace runspace = LanguagePrimitives.FromObjectAs <Runspace>(inputData);
if (runspace != null)
{
return(runspace);
}
// Try to coerce the runspace if the user provided a string, int, or guid
switch (inputData)
{
case string name:
var runspacesByName = GetRunspaceUtils.GetRunspacesByName(new[] { name });
if (runspacesByName.Count == 1)
{
return(runspacesByName[0]);
}
break;
case int id:
var runspacesById = GetRunspaceUtils.GetRunspacesById(new[] { id });
if (runspacesById.Count == 1)
{
return(runspacesById[0]);
}
break;
case Guid guid:
var runspacesByGuid = GetRunspaceUtils.GetRunspacesByInstanceId(new[] { guid });
if (runspacesByGuid.Count == 1)
{
return(runspacesByGuid[0]);
}
break;
default:
// Non-convertible type
break;
}
// If we couldn't get a single runspace, return the inputData
return(inputData);
}
