public static DescribeGroupsResponse FromBytes(IRequestContext context, ArraySegment <byte> bytes)
{
using (var reader = new KafkaReader(bytes)) {
var groups = new Group[reader.ReadInt32()];
for (var g = 0; g < groups.Length; g++)
{
var errorCode = (ErrorCode)reader.ReadInt16();
var groupId = reader.ReadString();
var state = reader.ReadString();
var protocolType = reader.ReadString();
var protocol = reader.ReadString();
IMembershipEncoder encoder = null;
var members = new Member[reader.ReadInt32()];
for (var m = 0; m < members.Length; m++)
{
encoder = encoder ?? context.GetEncoder(protocolType);
var memberId = reader.ReadString();
var clientId = reader.ReadString();
var clientHost = reader.ReadString();
var memberMetadata = encoder.DecodeMetadata(protocol, reader);
var memberAssignment = encoder.DecodeAssignment(reader);
members[m] = new Member(memberId, clientId, clientHost, memberMetadata, memberAssignment);
}
groups[g] = new Group(errorCode, groupId, state, protocolType, protocol, members);
}
return(new DescribeGroupsResponse(groups));
}
}
public static void AssertCanEncodeDecodeResponse <T>(this T response, short version, IMembershipEncoder encoder = null, T forComparison = null) where T : class, IResponse
{
var encoders = ImmutableDictionary <string, IMembershipEncoder> .Empty;
if (encoder != null)
{
encoders = encoders.Add(encoder.ProtocolType, encoder);
}
var context = new RequestContext(16, version, "Test-Response", encoders, encoder?.ProtocolType);
var data = KafkaDecoder.EncodeResponseBytes(context, response);
var decoded = GetType <T>().ToResponse(context, data.Skip(Request.IntegerByteSize + Request.CorrelationSize));
if (forComparison == null)
{
forComparison = response;
}
Assert.That(forComparison.GetHashCode(), Is.EqualTo(decoded.GetHashCode()), "HashCode equality");
var original = forComparison.ToString();
var final = decoded.ToString();
Assert.That(original, Is.EqualTo(final), "ToString equality");
Assert.That(decoded.Equals(final), Is.False); // general test for equality
Assert.That(decoded.Equals(decoded), Is.True); // general equality test for sanity
Assert.That(forComparison.Equals(decoded), $"Original\n{original}\nFinal\n{final}");
Assert.That(forComparison.Errors.HasEqualElementsInOrder(decoded.Errors), "Errors");
}
public static void AssertCanEncodeDecodeRequest <T>(this T request, short version, IMembershipEncoder encoder = null, T forComparison = null) where T : class, IRequest
{
var encoders = ImmutableDictionary <string, IMembershipEncoder> .Empty;
if (encoder != null)
{
encoders = encoders.Add(encoder.ProtocolType, encoder);
}
var context = new RequestContext(17, version, "Test-Request", encoders, encoder?.ProtocolType);
var bytes = request.ToBytes(context);
var decoded = KafkaDecoder.Decode <T>(bytes.Skip(4), context);
if (forComparison == null)
{
forComparison = request;
}
Assert.That(forComparison.GetHashCode(), Is.EqualTo(decoded.GetHashCode()), "HashCode equality");
Assert.That(forComparison.ShortString(), Is.EqualTo(decoded.ShortString()), "ShortString equality");
var original = forComparison.ToString();
var final = decoded.ToString();
Assert.That(original, Is.EqualTo(final), "ToString equality");
Assert.That(decoded.Equals(final), Is.False); // general equality test for sanity
Assert.That(decoded.Equals(decoded), Is.True); // general equality test for sanity
Assert.That(forComparison.Equals(decoded), $"Original\n{original}\nFinal\n{final}");
}
public static IKafkaWriter Write(this IKafkaWriter writer, IMemberAssignment assignment, IMembershipEncoder encoder)
{
encoder.EncodeAssignment(writer, assignment);
return(writer);
}
public static IKafkaWriter Write(this IKafkaWriter writer, IMemberMetadata metadata, IMembershipEncoder encoder)
{
encoder.EncodeMetadata(writer, metadata);
return(writer);
}