websitepanel/WebsitePanel/Sources/WebsitePanel.Providers.DNS.MsDNS2012/PowerShellHelper.cs
2013-11-28 20:38:38 +01:00

84 lines
No EOL
2.3 KiB
C#

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using WebsitePanel.Server.Utils;
namespace WebsitePanel.Providers.DNS
{
/// <summary>This class is a generic helper hosting the PowerShell runtime.</summary>
/// <remarks>It's probably a good idea to move to some utility module.</remarks>
public class PowerShellHelper: IDisposable
{
private static InitialSessionState s_session = null;
static PowerShellHelper()
{
s_session = InitialSessionState.CreateDefault();
// s_session.ImportPSModule( new string[] { "FileServerResourceManager" } );
}
public PowerShellHelper()
{
Log.WriteStart( "PowerShellHelper::ctor" );
Runspace rs = RunspaceFactory.CreateRunspace( s_session );
rs.Open();
// rs.SessionStateProxy.SetVariable( "ConfirmPreference", "none" );
this.runSpace = rs;
Log.WriteEnd( "PowerShellHelper::ctor" );
}
public void Dispose()
{
try
{
if( this.runSpace == null )
return;
if( this.runSpace.RunspaceStateInfo.State == RunspaceState.Opened )
this.runSpace.Close();
this.runSpace = null;
}
catch( Exception ex )
{
Log.WriteError( "Runspace error", ex );
}
}
public Runspace runSpace { get; private set; }
public Collection<PSObject> RunPipeline( params Command[] pipelineCommands )
{
Log.WriteStart( "ExecuteShellCommand" );
List<object> errorList = new List<object>();
Collection<PSObject> results = null;
using( Pipeline pipeLine = runSpace.CreatePipeline() )
{
// Add the command
foreach( var cmd in pipelineCommands )
pipeLine.Commands.Add( cmd );
// Execute the pipeline and save the objects returned.
results = pipeLine.Invoke();
// Only non-terminating errors are delivered here.
// Terminating errors raise exceptions instead.
if( null != pipeLine.Error && pipeLine.Error.Count > 0 )
{
foreach( object item in pipeLine.Error.ReadToEnd() )
{
errorList.Add( item );
string errorMessage = string.Format( "Invoke error: {0}", item );
Log.WriteWarning( errorMessage );
}
}
}
// errors = errorList.ToArray();
Log.WriteEnd( "ExecuteShellCommand" );
return results;
}
}
}