protected internal override void Decode(ChannelHandlerContext ctx, object msg, IList <object> @out)
{
if (msg is ReplicatedContent)
{
_replicatedContents.AddLast(( ReplicatedContent )msg);
}
else if (msg is RaftLogEntryTermsDecoder.RaftLogEntryTerms)
{
foreach (long term in ((RaftLogEntryTermsDecoder.RaftLogEntryTerms)msg).Terms())
{
_raftLogEntryTerms.AddLast(term);
}
}
else if (msg is RaftMessageDecoder.ClusterIdAwareMessageComposer)
{
if (_messageComposer != null)
{
throw new System.InvalidOperationException("Received raft message header. Pipeline already contains message header waiting to build.");
}
_messageComposer = (RaftMessageDecoder.ClusterIdAwareMessageComposer)msg;
}
else
{
throw new System.InvalidOperationException("Unexpected object in the pipeline: " + msg);
}
if (_messageComposer != null)
{
Optional <Org.Neo4j.causalclustering.core.consensus.RaftMessages_ClusterIdAwareMessage> clusterIdAwareMessage = _messageComposer.maybeCompose(_clock, _raftLogEntryTerms, _replicatedContents);
clusterIdAwareMessage.ifPresent(message =>
{
Clear(message);
@out.Add(message);
});
}
}
private void Clear(Org.Neo4j.causalclustering.core.consensus.RaftMessages_ClusterIdAwareMessage message)
{
_messageComposer = null;
if (_replicatedContents.Count > 0 || _raftLogEntryTerms.Count > 0)
{
throw new System.InvalidOperationException(string.Format("Message [{0}] was composed without using all resources in the pipeline. " + "Pipeline still contains Replicated contents[{1}] and RaftLogEntryTerms [{2}]", message, Stringify(_replicatedContents), Stringify(_raftLogEntryTerms)));
}
}