public override async Task <List <string> > List(string proj, string logLevel, string keyWrod = null, int page = 1, int pageSize = 100)
{
page = page <= 1 ? 0 : page;
int startLine = page * pageSize;
List <string> result = new List <string>();
var fileName = Path.Combine(options.File, proj, logLevel);
try
{
ReverseLineReader reader = new ReverseLineReader(fileName);
var doc = reader.GetEnumerator();
int index = 0;
while (doc.MoveNext())
{
index++;
if (index > startLine)
{
if (!string.IsNullOrEmpty(keyWrod))
{
if (doc.Current.Contains(keyWrod))
{
result.Add(doc.Current);
}
}
else
{
result.Add(doc.Current);
}
}
if (result.Count == pageSize)
{
break;
}
}
}
catch (NotSupportedException ex)
{
logger.LogError(ex.Message, ex);
}
catch (Exception ex)
{
logger.LogError(ex.Message, ex);
}
return(result);
}
public void UnseekableStreamThrowsExceptionEagerly()
{
var stream = new DisabledMemoryStream {
canSeek = false
};
var reader = new ReverseLineReader(() => stream);
try
{
reader.GetEnumerator();
Assert.Fail("Expected exception");
}
catch (NotSupportedException)
{
// Expected
}
}
public void UnseekableStreamThrowsExceptionEagerly()
{
var stream = new DisabledMemoryStream { canSeek = false };
var reader = new ReverseLineReader(() => stream);
try
{
reader.GetEnumerator();
Assert.Fail("Expected exception");
}
catch (NotSupportedException)
{
// Expected
}
}