private string SimplifySequence(ColumnOptions.PropertiesColumnOptions options, SequenceValue seq)
{
var sb = new StringBuilder();
var isEmpty = true;
foreach (var element in seq.Elements)
{
var itemValue = Simplify(element, options);
if (options.OmitElementIfEmpty && string.IsNullOrEmpty(itemValue))
{
continue;
}
if (isEmpty)
{
isEmpty = false;
if (!options.OmitSequenceContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>", options.SequenceElementName);
}
}
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>{1}</{0}>", options.ItemElementName, itemValue);
}
if (!isEmpty && !options.OmitSequenceContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", options.SequenceElementName);
}
return(sb.ToString());
}
private string SimplifyStructure(ColumnOptions.PropertiesColumnOptions options, StructureValue str)
{
var props = str.Properties.ToDictionary(p => p.Name, p => Simplify(p.Value, options));
var sb = new StringBuilder();
var isEmpty = true;
foreach (var element in props)
{
var itemValue = element.Value;
if (options.OmitElementIfEmpty && string.IsNullOrEmpty(itemValue))
{
continue;
}
if (isEmpty)
{
isEmpty = false;
if (!options.OmitStructureContainerElement)
{
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>", GetValidElementName(str.TypeTag));
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0} type='{1}'>", options.StructureElementName, str.TypeTag);
}
}
}
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>{1}</{0}>", GetValidElementName(element.Key), itemValue);
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0} key='{1}'>{2}</{0}>", options.PropertyElementName,
element.Key, itemValue);
}
}
if (!isEmpty && !options.OmitStructureContainerElement)
{
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", GetValidElementName(str.TypeTag));
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", options.StructureElementName);
}
}
return(sb.ToString());
}
private string SimplifyDictionary(ColumnOptions.PropertiesColumnOptions options, DictionaryValue dict)
{
var sb = new StringBuilder();
var isEmpty = true;
foreach (var element in dict.Elements)
{
var itemValue = Simplify(element.Value, options);
if (options.OmitElementIfEmpty && string.IsNullOrEmpty(itemValue))
{
continue;
}
if (isEmpty)
{
isEmpty = false;
if (!options.OmitDictionaryContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>", options.DictionaryElementName);
}
}
var key = SimplifyScalar(element.Key.Value);
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>{1}</{0}>", GetValidElementName(key), itemValue);
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0} key='{1}'>{2}</{0}>", options.ItemElementName, key, itemValue);
}
}
if (!isEmpty && !options.OmitDictionaryContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", options.DictionaryElementName);
}
return(sb.ToString());
}
public string Simplify(LogEventPropertyValue value, ColumnOptions.PropertiesColumnOptions options)
{
if (value is ScalarValue scalar)
{
return(SimplifyScalar(scalar.Value));
}
if (value is DictionaryValue dict)
{
return(SimplifyDictionary(options, dict));
}
if (value is SequenceValue seq)
{
return(SimplifySequence(options, seq));
}
if (value is StructureValue str)
{
return(SimplifyStructure(options, str));
}
return(null);
}
/// <summary>
/// Simplify the object so as to make handling the serialized
/// representation easier.
/// </summary>
/// <param name="value">The value to simplify (possibly null).</param>
/// <param name="options">Options to use during formatting</param>
/// <returns>A simplified representation.</returns>
public static string Simplify(LogEventPropertyValue value, ColumnOptions.PropertiesColumnOptions options)
{
if (value is ScalarValue scalar)
{
return(SimplifyScalar(scalar.Value));
}
if (value is DictionaryValue dict)
{
var sb = new StringBuilder();
var isEmpty = true;
foreach (var element in dict.Elements)
{
var itemValue = Simplify(element.Value, options);
if (options.OmitElementIfEmpty && string.IsNullOrEmpty(itemValue))
{
continue;
}
if (isEmpty)
{
isEmpty = false;
if (!options.OmitDictionaryContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>", options.DictionaryElementName);
}
}
var key = SimplifyScalar(element.Key.Value);
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>{1}</{0}>", GetValidElementName(key), itemValue);
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0} key='{1}'>{2}</{0}>", options.ItemElementName, key, itemValue);
}
}
if (!isEmpty && !options.OmitDictionaryContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", options.DictionaryElementName);
}
return(sb.ToString());
}
if (value is SequenceValue seq)
{
var sb = new StringBuilder();
var isEmpty = true;
foreach (var element in seq.Elements)
{
var itemValue = Simplify(element, options);
if (options.OmitElementIfEmpty && string.IsNullOrEmpty(itemValue))
{
continue;
}
if (isEmpty)
{
isEmpty = false;
if (!options.OmitSequenceContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>", options.SequenceElementName);
}
}
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>{1}</{0}>", options.ItemElementName, itemValue);
}
if (!isEmpty && !options.OmitSequenceContainerElement)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", options.SequenceElementName);
}
return(sb.ToString());
}
if (value is StructureValue str)
{
var props = str.Properties.ToDictionary(p => p.Name, p => Simplify(p.Value, options));
var sb = new StringBuilder();
var isEmpty = true;
foreach (var element in props)
{
var itemValue = element.Value;
if (options.OmitElementIfEmpty && string.IsNullOrEmpty(itemValue))
{
continue;
}
if (isEmpty)
{
isEmpty = false;
if (!options.OmitStructureContainerElement)
{
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>", GetValidElementName(str.TypeTag));
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0} type='{1}'>", options.StructureElementName, str.TypeTag);
}
}
}
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0}>{1}</{0}>", GetValidElementName(element.Key), itemValue);
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "<{0} key='{1}'>{2}</{0}>", options.PropertyElementName,
element.Key, itemValue);
}
}
if (!isEmpty && !options.OmitStructureContainerElement)
{
if (options.UsePropertyKeyAsElementName)
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", GetValidElementName(str.TypeTag));
}
else
{
sb.AppendFormat(CultureInfo.InvariantCulture, "</{0}>", options.StructureElementName);
}
}
return(sb.ToString());
}
return(null);
}