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ReadResponse cleaned up and async made.

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This commit is contained in:
glucaci 2016-12-01 08:31:12 +01:00
parent dd941b1f83
commit c1f763a9db
1 changed files with 241 additions and 230 deletions
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65
LibMpc/MpcConnection.cs
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@ -22,7 +22,6 @@ namespace LibMpc
private static readonly string OK = "OK";
private static readonly string ACK = "ACK";
private static readonly Regex ACK_REGEX = new Regex("^ACK \\[(?<code>[0-9]*)@(?<nr>[0-9]*)] \\{(?<command>[a-z]*)} (?<message>.*)$");
private readonly IPEndPoint _server;
@ -72,11 +71,9 @@ namespace LibMpc
await _writer.WriteLineAsync();
_writer.Flush();
ReadResponse();
await ReadResponseAsync();
}
/// <summary>
/// Disconnects from the current MPD server.
/// </summary>
private Task Disconnect()
{
if (_tcpClient == null)
@ -112,7 +109,7 @@ namespace LibMpc
_writer.WriteLine(command);
_writer.Flush();
return ReadResponse();
return await ReadResponseAsync();
}
catch (Exception)
{
@ -160,7 +157,7 @@ namespace LibMpc
_writer.WriteLine();
_writer.Flush();
return ReadResponse();
return await ReadResponseAsync();
}
catch (Exception)
{
@ -194,31 +191,25 @@ namespace LibMpc
_writer.Write(token);
}
private MpdResponse ReadResponse()
private async Task<MpdResponse> ReadResponseAsync()
{
List<string> ret = new List<string>();
string line = _reader.ReadLine();
while (!(line.Equals(OK) || line.StartsWith(ACK)))
var response = new List<string>();
var currentLine = _reader.ReadLine();
// Read response untli reach end token (OK or ACK)
while (!(currentLine.Equals(OK) || currentLine.StartsWith(ACK)))
{
ret.Add(line);
line = _reader.ReadLine();
response.Add(currentLine);
currentLine = await _reader.ReadLineAsync();
}
if (currentLine.Equals(OK))
{
return new MpdResponse(new ReadOnlyCollection<string>(response));
}
if (line.Equals(OK))
return new MpdResponse(new ReadOnlyCollection<string>(ret));
else
{
Match match = ACK_REGEX.Match(line);
if (match.Groups.Count != 5)
throw new InvalidDataException( "Error response not as expected" );
return new MpdResponse(
int.Parse( match.Result("${code}") ),
int.Parse( match.Result("${nr}") ),
match.Result("${command}"),
match.Result("${message}"),
new ReadOnlyCollection<string>(ret)
);
return AcknowledgeResponse.Parse(currentLine, response);
}
}
@ -231,4 +222,24 @@ namespace LibMpc
_version = string.Empty;
}
}
public class AcknowledgeResponse
{
private static readonly Regex AcknowledgePattern = new Regex("^ACK \\[(?<code>[0-9]*)@(?<nr>[0-9]*)] \\{(?<command>[a-z]*)} (?<message>.*)$");
public static MpdResponse Parse(string acknowledgeResponse, IList<string> payload)
{
var match = AcknowledgePattern.Match(acknowledgeResponse);
if (match.Groups.Count != 5)
throw new InvalidDataException("Error response not as expected");
return new MpdResponse(
int.Parse(match.Result("${code}")),
int.Parse(match.Result("${nr}")),
match.Result("${command}"),
match.Result("${message}"),
new ReadOnlyCollection<string>(payload));
}
}
}