private static string ChangeApplicationPool(IIisManager iisManager, long siteId, string oldPool, bool oldPoolCreated, string prospectivePoolName, string defaultPoolName)
{
string newPool = null;
if (iisManager.IsApplicationPoolSupported)
{
bool newPoolCreated = false;
bool poolChanged = false;
try
{
// Create new pool
if (string.IsNullOrEmpty(prospectivePoolName))
{
string[] pools = iisManager.ListApplicationPools();
newPool = BuildUniqueName(defaultPoolName, pools);
iisManager.CreateApplicationPool(newPool, true);
newPoolCreated = true;
}
else
newPool = prospectivePoolName;
// Change pool
iisManager.ChangeApplicationPool(siteId, newPool);
poolChanged = true;
// Delete old pool
if (oldPoolCreated)
{
try
{
iisManager.DeleteApplicationPool(oldPool);
}
catch (Exception ex)
{
Log.WriteException("ChangeApplicationPool", ex);
}
}
}
catch
{
#region Undo changes
try
{
if (poolChanged)
iisManager.ChangeApplicationPool(siteId, oldPool);
}
catch
{
}
try
{
if (newPoolCreated)
iisManager.DeleteApplicationPool(newPool);
}
catch
{
}
#endregion
throw;
}
}
return newPool;
}