public PagedResult <LogMessage> Search(int pageNumber = 1, int pageSize = 100, string filterExpression = null, SortOrder sort = SortOrder.Descending)
{
//If filter null - return a simple page of results
if (filterExpression == null)
{
var totalRecords = _logItems.Count;
var logMessages = _logItems
.OrderBy(x => x.Timestamp, sort)
.Skip(pageSize * (pageNumber - 1))
.Take(pageSize)
.Select(x => new LogMessage
{
Timestamp = x.Timestamp,
Level = x.Level,
MessageTemplateText = x.MessageTemplate.Text,
Exception = x.Exception?.ToString(),
Properties = x.Properties,
RenderedMessage = x.RenderMessage()
});
return(new PagedResult <LogMessage>(totalRecords, pageNumber, pageSize)
{
Items = logMessages
});
}
Func <LogEvent, bool> filter;
// If the expression is one word and doesn't contain a serilog operator then we can perform a like search
if (!filterExpression.Contains(" ") && !filterExpression.ContainsAny(ExpressionOperators.Select(c => c)))
{
filter = PerformMessageLikeFilter(filterExpression);
}
else // check if it's a valid expression
{
// If the expression evaluates then make it into a filter
if (FilterLanguage.TryCreateFilter(filterExpression, out var eval, out _))
{
filter = evt => true.Equals(eval(evt));
}
public ExpressionFilter(string filterExpression)
{
Func <LogEvent, bool> filter;
if (string.IsNullOrEmpty(filterExpression))
{
return;
}
// If the expression is one word and doesn't contain a serilog operator then we can perform a like search
if (!filterExpression.Contains(" ") && !filterExpression.ContainsAny(ExpressionOperators.Select(c => c)))
{
filter = PerformMessageLikeFilter(filterExpression);
}
else // check if it's a valid expression
{
// If the expression evaluates then make it into a filter
if (FilterLanguage.TryCreateFilter(filterExpression, out var eval, out _))
{
filter = evt => true.Equals(eval(evt));
}