public ActionResult <string> Open(string filePath)
{
//Check for valid filepath
if (System.IO.File.Exists(filePath) == false)
{
var message = $"No file exists on disk at {filePath}";
return(NotFound(message));
}
//Check for file extension ends with one of the following
//.json .txt or .clef
//Don't want to attempt to any old file type
var extension = Path.GetExtension(filePath);
if (extension != ".txt" && extension != ".json" && extension != ".clef")
{
var message = $"The file {filePath} is not a compatible log file. Can only open .json, .txt or .clef files";
return(BadRequest(message));
}
//Lets check file is valid JSON & not a text document on your upcoming novel
var firstLine = System.IO.File.ReadLines(filePath).First();
if (firstLine.IsValidJson() == false)
{
var message = $"The file {filePath} does not contain valid JSON on line one";
return(BadRequest(message));
}
//We will skip over/ignore invalid/malformed log lines
var logs = _logParser.ReadLogs(filePath);
return($"Log contains {logs.Count}");
}
public ActionResult <string> Open(string filePath)
{
//Check for valid filepath
if (System.IO.File.Exists(filePath) == false)
{
var message = $"No file exists on disk at {filePath}";
return(NotFound(message));
}
//Lets check file is valid JSON & not a text document on your upcoming novel
string?firstLine;
using (var s = System.IO.File.Open(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (var sr = new StreamReader(s))
{ firstLine = sr.ReadLine(); }
if (firstLine.IsValidJson() == false)
{
var message = $"The file {filePath} does not contain valid JSON on line one";
return(BadRequest(message));
}
//We will skip over/ignore invalid/malformed log lines
try
{
var logs = _logParser.ReadLogs(filePath);
return($"Log contains {logs.Count}");
}
catch (InvalidDataException ex)
{
// Can be InvalidDataExcpetion or JsonFormatterException
// Such as 'The data on line 1 does not include the required @t field'
return(BadRequest($"There was a problem reading the JSON. {ex.Message}"));
}
}
