File size: 5,020 Bytes
8c763fb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | // Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
namespace System.Management.Automation
{
using System;
using System.Collections;
using System.Collections.ObjectModel;
using System.Management.Automation.Runspaces;
/// <summary>
/// Defines a class which allows simple execution of commands from CLR languages.
/// </summary>
public class RunspaceInvoke : IDisposable
{
#region constructors
/// <summary>
/// Runspace on which commands are invoked.
/// </summary>
private Runspace _runspace;
/// <summary>
/// Create a RunspaceInvoke for invoking commands. This uses
/// a runspace with default PSSnapins.
/// </summary>
public RunspaceInvoke()
{
_runspace = RunspaceFactory.CreateRunspace();
_runspace.Open();
if (Runspace.DefaultRunspace == null)
{
Runspace.DefaultRunspace = _runspace;
}
}
/// <summary>
/// Create RunspaceInvoke for invoking command in specified
/// runspace.
/// </summary>
/// <param name="runspace"></param>
/// <remarks>Runspace must be opened state</remarks>
public RunspaceInvoke(Runspace runspace)
{
if (runspace == null)
{
throw PSTraceSource.NewArgumentNullException("runspace");
}
_runspace = runspace;
if (Runspace.DefaultRunspace == null)
{
Runspace.DefaultRunspace = _runspace;
}
}
#endregion constructors
#region invoke
/// <summary>
/// Invoke the specified script.
/// </summary>
/// <param name="script">PowerShell script to invoke.</param>
/// <returns>Output of invocation.</returns>
public Collection<PSObject> Invoke(string script)
{
return Invoke(script, null);
}
/// <summary>
/// Invoke the specified script and passes specified input to the script.
/// </summary>
/// <param name="script">PowerShell script to invoke.</param>
/// <param name="input">Input to script.</param>
/// <returns>Output of invocation.</returns>
public Collection<PSObject> Invoke(string script, IEnumerable input)
{
if (_disposed == true)
{
throw PSTraceSource.NewObjectDisposedException("runspace");
}
if (script == null)
{
throw PSTraceSource.NewArgumentNullException("script");
}
Pipeline p = _runspace.CreatePipeline(script);
return p.Invoke(input);
}
/// <summary>
/// Invoke the specified script and passes specified input to the script.
/// </summary>
/// <param name="script">PowerShell script to invoke.</param>
/// <param name="input">Input to script.</param>
/// <param name="errors">This gets errors from script.</param>
/// <returns>Output of invocation.</returns>
/// <remarks>
/// <paramref name="errors"/> is the non-terminating error stream
/// from the command.
/// In this release, the objects read from this PipelineReader
/// are PSObjects wrapping ErrorRecords.
/// </remarks>
public Collection<PSObject> Invoke(string script, IEnumerable input, out IList errors)
{
if (_disposed == true)
{
throw PSTraceSource.NewObjectDisposedException("runspace");
}
if (script == null)
{
throw PSTraceSource.NewArgumentNullException("script");
}
Pipeline p = _runspace.CreatePipeline(script);
Collection<PSObject> output = p.Invoke(input);
// 2004/06/30-JonN was ReadAll() which was non-blocking
errors = p.Error.NonBlockingRead();
return output;
}
#endregion invoke
#region IDisposable Members
/// <summary>
/// Set to true when object is disposed.
/// </summary>
private bool _disposed;
/// <summary>
/// Dispose underlying Runspace.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>
/// Protected dispose which can be overridden by derived classes.
/// </summary>
/// <param name="disposing"></param>
protected virtual void Dispose(bool disposing)
{
if (_disposed == false)
{
if (disposing)
{
_runspace.Close();
_runspace = null;
}
}
_disposed = true;
}
#endregion IDisposable Members
}
}
|