private static void EvaluateSortingExpression(
MshParameter p,
PSObject inputObject,
List <ObjectCommandPropertyValue> orderValues,
List <ErrorRecord> errors,
out string propertyNotFoundMsg,
ref bool comparable)
{
// NOTE: we assume globbing was not allowed in input
PSPropertyExpression ex = p.GetEntry(FormatParameterDefinitionKeys.ExpressionEntryKey) as PSPropertyExpression;
// get the values, but do not expand aliases
List <PSPropertyExpressionResult> expressionResults = ex.GetValues(inputObject, false, true);
if (expressionResults.Count == 0)
{
// we did not get any result out of the expression:
// we enter a null as a place holder
orderValues.Add(ObjectCommandPropertyValue.NonExistingProperty);
propertyNotFoundMsg = StringUtil.Format(SortObjectStrings.PropertyNotFound, ex.ToString());
return;
}
propertyNotFoundMsg = null;
// we obtained some results, enter them into the list
foreach (PSPropertyExpressionResult r in expressionResults)
{
if (r.Exception == null)
{
orderValues.Add(new ObjectCommandPropertyValue(r.Result));
}
else
{
ErrorRecord errorRecord = new ErrorRecord(
r.Exception,
"ExpressionEvaluation",
ErrorCategory.InvalidResult,
inputObject);
errors.Add(errorRecord);
orderValues.Add(ObjectCommandPropertyValue.ExistingNullProperty);
}
comparable = true;
}
}
internal override object GetValue(PSObject liveObject)
{
List <PSPropertyExpressionResult> resList = _expression.GetValues(liveObject);
if (resList.Count == 0)
{
return(null);
}
// Only first element is used.
PSPropertyExpressionResult result = resList[0];
if (result.Exception != null)
{
return(null);
}
object objectResult = result.Result;
return(objectResult == null ? string.Empty : ColumnInfo.LimitString(objectResult.ToString()));
}
/// <summary>
/// To write the Property value.
/// </summary>
private void WritePropertyValue(StringBuilder Listtag, MshParameter p)
{
PSPropertyExpression exValue = p.GetEntry(FormatParameterDefinitionKeys.ExpressionEntryKey) as PSPropertyExpression;
// get the value of the property
List <PSPropertyExpressionResult> resultList = exValue.GetValues(_inputObject);
foreach (PSPropertyExpressionResult result in resultList)
{
// create comma sep list for multiple results
if (result.Result != null)
{
string htmlEncodedResult = WebUtility.HtmlEncode(SafeToString(result.Result));
Listtag.Append(htmlEncodedResult);
}
Listtag.Append(", ");
}
if (Listtag.ToString().EndsWith(", ", StringComparison.Ordinal))
{
Listtag.Remove(Listtag.Length - 2, 2);
}
}
private void ProcessExpandParameter(MshParameter p, PSObject inputObject,
List <PSNoteProperty> matchedProperties)
{
PSPropertyExpression ex = p.GetEntry(FormatParameterDefinitionKeys.ExpressionEntryKey) as PSPropertyExpression;
List <PSPropertyExpressionResult> expressionResults = ex.GetValues(inputObject);
if (expressionResults.Count == 0)
{
ErrorRecord errorRecord = new(
PSTraceSource.NewArgumentException("ExpandProperty", SelectObjectStrings.PropertyNotFound, ExpandProperty),
"ExpandPropertyNotFound",
ErrorCategory.InvalidArgument,
inputObject);
throw new SelectObjectException(errorRecord);
}
if (expressionResults.Count > 1)
{
ErrorRecord errorRecord = new(
PSTraceSource.NewArgumentException("ExpandProperty", SelectObjectStrings.MutlipleExpandProperties, ExpandProperty),
"MutlipleExpandProperties",
ErrorCategory.InvalidArgument,
inputObject);
throw new SelectObjectException(errorRecord);
}
PSPropertyExpressionResult r = expressionResults[0];
if (r.Exception == null)
{
// ignore the property value if it's null
if (r.Result == null)
{
return;
}
System.Collections.IEnumerable results = LanguagePrimitives.GetEnumerable(r.Result);
if (results == null)
{
// add NoteProperties if there is any
// If r.Result is a base object, we don't want to associate the NoteProperty
// directly with it. We want the NoteProperty to be associated only with this
// particular PSObject, so that when the user uses the base object else where,
// its members remain the same as before the Select-Object command run.
PSObject expandedObject = PSObject.AsPSObject(r.Result, true);
AddNoteProperties(expandedObject, inputObject, matchedProperties);
FilteredWriteObject(expandedObject, matchedProperties);
return;
}
foreach (object expandedValue in results)
{
// ignore the element if it's null
if (expandedValue == null)
{
continue;
}
// add NoteProperties if there is any
// If expandedValue is a base object, we don't want to associate the NoteProperty
// directly with it. We want the NoteProperty to be associated only with this
// particular PSObject, so that when the user uses the base object else where,
// its members remain the same as before the Select-Object command run.
PSObject expandedObject = PSObject.AsPSObject(expandedValue, true);
AddNoteProperties(expandedObject, inputObject, matchedProperties);
FilteredWriteObject(expandedObject, matchedProperties);
}
}
else
{
ErrorRecord errorRecord = new(
r.Exception,
"PropertyEvaluationExpand",
ErrorCategory.InvalidResult,
inputObject);
throw new SelectObjectException(errorRecord);
}
}
