private bool TryCreateParser(ILogEntryParserPlugin plugin, IServiceContainer services, ILogFileFormat format,
out ILogEntryParser parser)
{
try
{
var rawParser = plugin.CreateParser(services, format);
if (rawParser == null)
{
parser = null;
return(false);
}
// We cannot trust plugins to adhere to the contract set up by the interface.
// Therefore we wrap the "raw" plugin implementation by a layer which ensures that the plugin cannot screw up too bad
parser = new NoThrowLogEntryParser(rawParser);
return(true);
}
catch (Exception e)
{
Log.DebugFormat("Caught exception: {0}", e);
parser = null;
return(false);
}
}
/// <summary>
/// Initializes this object.
/// </summary>
/// <param name="source"></param>
/// <param name="parser"></param>
public GenericTextLogSource(ILogSource source,
ILogEntryParser parser)
{
_source = source ?? throw new ArgumentNullException(nameof(source));
_parser = parser;
_parsedColumns = _parser.Columns.ToList();
_allColumns = _source.Columns.Concat(_parsedColumns).Distinct().ToList();
_listeners = new ProxyLogListenerCollection(source, this);
_nothingParsed = new ReadOnlyLogEntry(_parsedColumns);
}
//что бы не создавать фабрику для примера, просто обьявил метод
static LogEntryReader CreateLogEntryReaderWithParser(string content, ILogEntryParser logEntryParser)
{
//Arrange
var memoryStream = new MemoryStream();
StreamWriter sw = new StreamWriter(memoryStream);
sw.WriteLine(content);
sw.Flush();
memoryStream.Position = 0;
return(new LogEntryReader(memoryStream, logEntryParser));
}
public LogEntryReaderFixture WithParser(ILogEntryParser parser)
{
_parser = parser;
return(this);
}
public LogFileWatcherBase(IFileWithPosition file, ILogEntryParser <TLogEntry> parser, Invoker invoker)
{
this.File = file;
this.parser = parser;
this.invoker = invoker ?? DirectInvoker.Invoke;
}
public NoThrowLogEntryParser(ILogEntryParser inner)
{
_inner = inner;
}
public Poller(IFileWithPosition file, long duration, ILogEntryParser <TLogEntry> parser, Invoker invoker = null)
: base(file, parser, invoker)
{
this.duration = duration;
}
public LogEntryReader(Stream stream, ILogEntryParser logEntryParser)
{
_stream = stream;
_logEntryParser = logEntryParser;
}
public Watcher(IFileWithPosition file, ILogEntryParser <TLogEntry> parser, Invoker invoker = null)
: base(file, parser, invoker)
{
}
