/// <summary>
///
/// </summary>
/// <param name="raftNodeSettings"></param>
/// <param name="udpPort">e.g. 47777 </param>
/// <param name="verboseNode">Will call VerbosePrint on true</param>
public RaftNodeUdp(RaftNodeSettings raftNodeSettings, int udpPort, bool verboseNode)
{
try
{
TM = new TimeMaster(this);
udpSocket = new UdpSocketListener(TM, this);
UdpPort = udpPort;
rn = new RaftNode(raftNodeSettings, this, this);
rn.Verbose = verboseNode;
rn.NodeAddress.IsMe = true;
//Can be increased on the hot system later.
rn.SetNodesQuantityInTheCluster(raftNodeSettings.InitialQuantityOfRaftNodesInTheCluster);
//Supplied by emulator for VerbosePrints
rn.NodeAddress.NodeAddressId = raftNodeSettings.RaftNodeIdExternalForEmulator;
}
catch (Exception ex)
{
this.LogError(new WarningLogEntry()
{
Exception = ex, Method = "Raft.RaftNodeUdp.RaftNodeUdp"
});
}
}
public StateLog(RaftNode rn)
{
this.rn = rn;
//if (rn.nodeSettings.InMemoryEntity)
// if (String.IsNullOrEmpty(dbreezePath) || rn.nodeSettings.InMemoryEntity)
// db = new DBreezeEngine(new DBreezeConfiguration { Storage = DBreezeConfiguration.eStorage.MEMORY });
//else
// db = new DBreezeEngine(dbreezePath);
if (rn.entitySettings.EntityName != "default")
{
tblStateLogEntry += "_" + rn.entitySettings.EntityName;
}
if (rn.entitySettings.InMemoryEntity)
{
tblStateLogEntry = "mem_" + tblStateLogEntry;
}
using (var t = this.rn.db.GetTransaction())
{
var row = t.SelectBackwardFromTo <byte[], byte[]>(tblStateLogEntry,
new byte[] { 1 }.ToBytes(ulong.MaxValue, ulong.MaxValue), true,
new byte[] { 1 }.ToBytes(ulong.MinValue, ulong.MinValue), true)
.FirstOrDefault();
StateLogEntry sle = null;
if (row != null && row.Exists)
{
sle = StateLogEntry.BiserDecode(row.Value);
StateLogId = sle.Index;
StateLogTerm = sle.Term;
PreviousStateLogId = sle.PreviousStateLogId;
PreviousStateLogTerm = sle.PreviousStateLogTerm;
tempPrevStateLogId = PreviousStateLogId;
tempPrevStateLogTerm = PreviousStateLogTerm;
tempStateLogId = StateLogId;
tempStateLogTerm = StateLogTerm;
rn.NodeTerm = sle.Term;
}
var rowTerm = t.Select <byte[], byte[]>(tblStateLogEntry, new byte[] { 2 });
if (rowTerm.Exists)
{
LastCommittedIndex = rowTerm.Value.Substring(0, 8).To_UInt64_BigEndian();
LastCommittedIndexTerm = rowTerm.Value.Substring(8, 8).To_UInt64_BigEndian();
}
var rowBL = t.Select <byte[], ulong>(tblStateLogEntry, new byte[] { 3 });
if (rowBL.Exists)
{
LastBusinessLogicCommittedIndex = rowBL.Value;
}
}
}
/// <summary>
///
/// </summary>
public void Dispose()
{
try
{
this.TM.Dispose();
if (udpSocket != null)
{
udpSocket.Stop();
udpSocket.Dispose();
udpSocket = null;
}
if (rn != null)
{
rn.NodeStop();
rn.Dispose();
rn = null;
}
}
catch
{}
}
public RedirectHandler(RaftNode rn)
{
this.rn = rn;
}