File size: 3,387 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 | // Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
using System;
using System.Management.Automation;
using Dbg = System.Management.Automation;
namespace Microsoft.PowerShell.Commands
{
/// <summary>
/// A command that begins a transaction.
/// </summary>
[Cmdlet(VerbsLifecycle.Start, "Transaction", SupportsShouldProcess = true, HelpUri = "https://go.microsoft.com/fwlink/?LinkID=135262")]
public class StartTransactionCommand : PSCmdlet
{
/// <summary>
/// The time, in minutes, before this transaction is rolled back
/// automatically.
/// </summary>
[Parameter]
[Alias("TimeoutMins")]
public int Timeout
{
get
{
return (int)_timeout.TotalMinutes;
}
set
{
// The transactions constructor treats a timeout of
// zero as infinite. So we fudge it to be a bit longer.
if (value == 0)
_timeout = TimeSpan.FromTicks(1);
else
_timeout = TimeSpan.FromMinutes(value);
_timeoutSpecified = true;
}
}
private bool _timeoutSpecified = false;
private TimeSpan _timeout = TimeSpan.MinValue;
/// <summary>
/// Gets or sets the flag to determine if this transaction can
/// be committed or rolled back independently of other transactions.
/// </summary>
[Parameter]
public SwitchParameter Independent
{
get { return _independent; }
set { _independent = value; }
}
private SwitchParameter _independent;
/// <summary>
/// Gets or sets the rollback preference for this transaction.
/// </summary>
[Parameter]
public RollbackSeverity RollbackPreference
{
get { return _rollbackPreference; }
set { _rollbackPreference = value; }
}
private RollbackSeverity _rollbackPreference = RollbackSeverity.Error;
/// <summary>
/// Creates a new transaction.
/// </summary>
protected override void EndProcessing()
{
if (ShouldProcess(
NavigationResources.TransactionResource,
NavigationResources.CreateAction))
{
// Set the default timeout
if (!_timeoutSpecified)
{
// See if we're being invoked directly at the
// command line. In that case, set the timeout to infinite.
if (MyInvocation.CommandOrigin == CommandOrigin.Runspace)
{
_timeout = TimeSpan.MaxValue;
}
else
{
_timeout = TimeSpan.FromMinutes(30);
}
}
// Create the new transaction
if (_independent)
{
this.Context.TransactionManager.CreateNew(_rollbackPreference, _timeout);
}
else
{
this.Context.TransactionManager.CreateOrJoin(_rollbackPreference, _timeout);
}
}
}
}
}
|