public static Flags decode(byte flagsByte, SNType type)
{
List <Flag> bitMask = new List <Flag>();
foreach (var flag in Enum.GetValues(typeof(Flag)))
{
if ((flagsByte & (int)flag) == (int)flag)
{
bitMask.Add((Flag)flag);
}
}
return(Flags.validateAndCreate(bitMask, type));
}
public static long GetNextTick(SNType type = SNType.Default)
{
lock (dict[type].ObjLock)
{
while (true)
{
if (dict[type].Ticks + 1 < DateTime.Now.Ticks)
{
return ++dict[type].Ticks;
}
Thread.Sleep(1);
}
}
}
public static long GetNextTick(SNType type = SNType.Default)
{
lock (dict[type].ObjLock)
{
while (true)
{
if (dict[type].Ticks + 1 < DateTime.Now.Ticks)
{
return(++dict[type].Ticks);
}
Thread.Sleep(1);
}
}
}
private SNObject GetSN(SNType tab)
{
SNObject sn = new SNObject();
using (var tx = new TransactionScope())
{
var get_sn_db = getDB0;
try
{
get_sn_db = getDB0;
string tab_name = Enum.GetName(typeof(ProcCore.Business.SNType), tab);
var items = get_sn_db.i_SN.Single(x => x.sn_type == tab_name);
if (items.y == DateTime.Now.Year &&
items.m == DateTime.Now.Month &&
items.d == DateTime.Now.Day
)
{
int now_max = items.sn_max;
now_max++;
items.sn_max = now_max;
}
else
{
items.y = DateTime.Now.Year;
items.m = DateTime.Now.Month;
items.d = DateTime.Now.Day;
items.sn_max = 1;
}
get_sn_db.SaveChanges();
tx.Complete();
sn.y = items.y;
sn.m = items.m;
sn.d = items.d;
sn.sn_max = items.sn_max;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
get_sn_db.Dispose();
}
}
return(sn);
}
private static Flags validateAndCreate(List <Flag> bitMask, SNType type)
{
if (bitMask.Contains(Flag.RESERVED_TOPIC))
{
throw new MalformedMessageException("Invalid topic type encoding. TopicType reserved bit must not be encoded");
}
Boolean dup = bitMask.Contains(Flag.DUPLICATE);
Boolean retain = bitMask.Contains(Flag.RETAIN);
Boolean will = bitMask.Contains(Flag.WILL);
Boolean cleanSession = bitMask.Contains(Flag.CLEAN_SESSION);
SNQoS?qos = null;
if (bitMask.Contains(Flag.QOS_LEVEL_ONE))
{
qos = SNQoS.LEVEL_ONE;
}
else if (bitMask.Contains(Flag.QOS_2))
{
qos = SNQoS.EXACTLY_ONCE;
}
else if (bitMask.Contains(Flag.QOS_1))
{
qos = SNQoS.AT_LEAST_ONCE;
}
else
{
qos = SNQoS.AT_MOST_ONCE;
}
TopicType?topicType = null;
if (bitMask.Contains(Flag.SHORT_TOPIC))
{
topicType = avps.TopicType.SHORT;
}
else if (bitMask.Contains(Flag.ID_TOPIC))
{
topicType = avps.TopicType.ID;
}
else
{
topicType = avps.TopicType.NAMED;
}
switch (type)
{
case SNType.CONNECT:
if (dup)
{
throw new MalformedMessageException(type + " invalid encoding: dup flag");
}
if (qos != SNQoS.AT_MOST_ONCE)
{
throw new MalformedMessageException(type + " invalid encoding: qos flag - " + qos);
}
if (retain)
{
throw new MalformedMessageException(type + " invalid encoding: retain flag");
}
if (!topicType.HasValue || topicType != avps.TopicType.NAMED)
{
throw new MalformedMessageException(type + " invalid encoding: topicIdType flag - " + topicType);
}
break;
case SNType.WILL_TOPIC:
if (dup)
{
throw new MalformedMessageException(type + " invalid encoding: dup flag");
}
if (qos == null)
{
throw new MalformedMessageException(type + " invalid encoding: qos flag");
}
if (will)
{
throw new MalformedMessageException(type + " invalid encoding: will flag");
}
if (cleanSession)
{
throw new MalformedMessageException(type + " invalid encoding: cleanSession flag");
}
if (!topicType.HasValue || topicType != avps.TopicType.NAMED)
{
throw new MalformedMessageException(type + " invalid encoding: topicIdType flag - " + topicType);
}
break;
case SNType.PUBLISH:
if (qos == null)
{
throw new MalformedMessageException(type + " invalid encoding: qos flag");
}
if (topicType == null)
{
throw new MalformedMessageException(type + " invalid encoding: topicIdType flag");
}
if (will)
{
throw new MalformedMessageException(type + " invalid encoding: will flag");
}
if (cleanSession)
{
throw new MalformedMessageException(type + " invalid encoding: cleanSession flag");
}
if (dup && (qos == SNQoS.AT_MOST_ONCE || qos == SNQoS.LEVEL_ONE))
{
throw new MalformedMessageException(type + " invalid encoding: dup flag with invalid qos:" + qos);
}
break;
case SNType.SUBSCRIBE:
if (qos == null)
{
throw new MalformedMessageException(type + " invalid encoding: qos flag");
}
if (qos == SNQoS.LEVEL_ONE)
{
throw new MalformedMessageException(type + "invalid encoding: qos " + qos);
}
if (retain)
{
throw new MalformedMessageException(type + " invalid encoding: retain flag");
}
if (will)
{
throw new MalformedMessageException(type + " invalid encoding: will flag");
}
if (cleanSession)
{
throw new MalformedMessageException(type + " invalid encoding: cleanSession flag");
}
if (!topicType.HasValue)
{
throw new MalformedMessageException(type + " invalid encoding: retain flag");
}
break;
case SNType.SUBACK:
if (dup)
{
throw new MalformedMessageException(type + " invalid encoding: dup flag");
}
if (qos == null)
{
throw new MalformedMessageException(type + " invalid encoding: qos flag");
}
if (retain)
{
throw new MalformedMessageException(type + " invalid encoding: retain flag");
}
if (will)
{
throw new MalformedMessageException(type + " invalid encoding: will flag");
}
if (cleanSession)
{
throw new MalformedMessageException(type + " invalid encoding: cleanSession flag");
}
if (!topicType.HasValue || topicType != avps.TopicType.NAMED)
{
throw new MalformedMessageException(type + " invalid encoding: topicIdType flag");
}
break;
case SNType.UNSUBSCRIBE:
if (dup)
{
throw new MalformedMessageException(type + " invalid encoding: dup flag");
}
if (qos != SNQoS.AT_MOST_ONCE)
{
throw new MalformedMessageException(type + " invalid encoding: qos flag");
}
if (retain)
{
throw new MalformedMessageException(type + " invalid encoding: retain flag");
}
if (will)
{
throw new MalformedMessageException(type + " invalid encoding: will flag");
}
if (cleanSession)
{
throw new MalformedMessageException(type + " invalid encoding: cleanSession flag");
}
if (topicType == null)
{
throw new MalformedMessageException(type + " invalid encoding: topicIdType flag");
}
break;
case SNType.WILL_TOPIC_UPD:
if (dup)
{
throw new MalformedMessageException(type + " invalid encoding: dup flag");
}
if (qos == null)
{
throw new MalformedMessageException(type + " invalid encoding: qos flag");
}
if (will)
{
throw new MalformedMessageException(type + " invalid encoding: will flag");
}
if (cleanSession)
{
throw new MalformedMessageException(type + " invalid encoding: cleanSession flag");
}
if (!topicType.HasValue || topicType.Value != avps.TopicType.NAMED)
{
throw new MalformedMessageException(type + " invalid encoding: topicIdType flag");
}
break;
default:
break;
}
return(new Flags(dup, qos, retain, will, cleanSession, topicType));
}
private SNObject GetSN(SNType tab)
{
SNObject sn = new SNObject();
using (var tx = new TransactionScope())
{
var get_sn_db = getDB0;
try
{
get_sn_db = getDB0;
string tab_name = Enum.GetName(typeof(ProcCore.Business.SNType), tab);
var items = get_sn_db.i_SN.Single(x => x.sn_type == tab_name);
if (items.y == DateTime.Now.Year &&
items.m == DateTime.Now.Month &&
items.d == DateTime.Now.Day
)
{
int now_max = items.sn_max;
now_max++;
items.sn_max = now_max;
}
else
{
items.y = DateTime.Now.Year;
items.m = DateTime.Now.Month;
items.d = DateTime.Now.Day;
items.sn_max = 1;
}
get_sn_db.SaveChanges();
tx.Complete();
sn.y = items.y;
sn.m = items.m;
sn.d = items.d;
sn.sn_max = items.sn_max;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
get_sn_db.Dispose();
}
}
return sn;
}
public static IByteBuffer encode(SNMessage message)
{
int length = message.getLength();
IByteBuffer buf = Unpooled.Buffer(length);
if (length <= 255)
{
buf.WriteByte(length);
}
else
{
buf.WriteByte(THREE_OCTET_LENGTH_SUFFIX);
buf.WriteShort(length);
}
SNType type = message.getType();
buf.WriteByte((byte)(int)type);
switch (type)
{
case SNType.ADVERTISE:
Advertise advertise = (Advertise)message;
buf.WriteByte(advertise.gwID);
buf.WriteShort(advertise.duration);
break;
case SNType.SEARCHGW:
SearchGW searchGw = (SearchGW)message;
buf.WriteByte((byte)(int)searchGw.Radius);
break;
case SNType.GWINFO:
GWInfo gwInfo = (GWInfo)message;
buf.WriteByte(gwInfo.gwID);
if (gwInfo.gwAddress != null)
{
buf.WriteBytes(Encoding.UTF8.GetBytes(gwInfo.gwAddress));
}
break;
case SNType.CONNECT:
SNConnect connect = (SNConnect)message;
byte connectFlagsByte = Flags.encode(false, null, false, connect.WillPresent, connect.CleanSession, null);
buf.WriteByte(connectFlagsByte);
buf.WriteByte(connect.ProtocolID);
buf.WriteShort(connect.Duration);
buf.WriteBytes(Encoding.UTF8.GetBytes(connect.ClientID));
break;
case SNType.CONNACK:
case SNType.WILL_TOPIC_RESP:
case SNType.WILL_MSG_RESP:
ResponseMessage responseMessage = (ResponseMessage)message;
buf.WriteByte((byte)(int)responseMessage.ReturnCode);
break;
case SNType.WILL_TOPIC:
WillTopic willTopic = (WillTopic)message;
if (willTopic.Topic != null)
{
byte willTopicFlagsByte = Flags.encode(false, willTopic.Topic.getQos(), willTopic.Retain, false, false, willTopic.Topic.getType());
buf.WriteByte(willTopicFlagsByte);
buf.WriteBytes(Encoding.UTF8.GetBytes(willTopic.Topic.Value));
}
break;
case SNType.WILL_MSG:
WillMsg willMsg = (WillMsg)message;
buf.WriteBytes(willMsg.Content);
break;
case SNType.REGISTER:
Register register = (Register)message;
buf.WriteShort(register.topicID);
buf.WriteShort(register.MessageID.Value);
buf.WriteBytes(Encoding.UTF8.GetBytes(register.TopicName));
break;
case SNType.REGACK:
Regack regack = (Regack)message;
buf.WriteShort(regack.topicID);
buf.WriteShort(regack.MessageID.Value);
buf.WriteByte((byte)(int)regack.code);
break;
case SNType.PUBLISH:
SNPublish publish = (SNPublish)message;
byte publishFlagsByte = Flags.encode(publish.Dup, publish.SnTopic.getQos(), publish.Retain, false, false, publish.SnTopic.getType());
buf.WriteByte(publishFlagsByte);
buf.WriteBytes(publish.SnTopic.encode());
if (publish.MessageID.HasValue)
{
buf.WriteShort(publish.MessageID.Value);
}
else
{
buf.WriteShort(0);
}
buf.WriteBytes(publish.Content);
break;
case SNType.PUBACK:
SNPuback puback = (SNPuback)message;
buf.WriteShort(puback.topicID);
buf.WriteShort(puback.MessageID.Value);
buf.WriteByte((byte)(int)puback.ReturnCode);
break;
case SNType.PUBREC:
case SNType.PUBREL:
case SNType.PUBCOMP:
case SNType.UNSUBACK:
CountableMessage contableMessage = (CountableMessage)message;
buf.WriteShort(contableMessage.MessageID.Value);
break;
case SNType.SUBSCRIBE:
SNSubscribe subscribe = (SNSubscribe)message;
byte subscribeFlags = Flags.encode(subscribe.Dup, subscribe.SnTopic.getQos(), false, false, false, subscribe.SnTopic.getType());
buf.WriteByte(subscribeFlags);
buf.WriteShort(subscribe.MessageID.Value);
buf.WriteBytes(subscribe.SnTopic.encode());
break;
case SNType.SUBACK:
SNSuback suback = (SNSuback)message;
byte subackByte = Flags.encode(false, suback.AllowedQos, false, false, false, null);
buf.WriteByte(subackByte);
buf.WriteShort(suback.topicID);
buf.WriteShort(suback.MessageID.Value);
buf.WriteByte((byte)(int)suback.ReturnCode);
break;
case SNType.UNSUBSCRIBE:
SNUnsubscribe unsubscribe = (SNUnsubscribe)message;
byte unsubscribeFlags = Flags.encode(false, null, false, false, false, unsubscribe.SnTopic.getType());
buf.WriteByte(unsubscribeFlags);
buf.WriteShort(unsubscribe.MessageID.Value);
buf.WriteBytes(unsubscribe.SnTopic.encode());
break;
case SNType.PINGREQ:
if (length > 2)
{
SNPingreq pingreq = (SNPingreq)message;
buf.WriteBytes(Encoding.UTF8.GetBytes(pingreq.ClientID));
}
break;
case SNType.DISCONNECT:
if (length > 2)
{
SNDisconnect disconnect = (SNDisconnect)message;
buf.WriteShort(disconnect.Duration);
}
break;
case SNType.WILL_TOPIC_UPD:
WillTopicUpd willTopicUpd = (WillTopicUpd)message;
if (willTopicUpd.Topic != null)
{
byte willTopicUpdByte = Flags.encode(false, willTopicUpd.Topic.getQos(), willTopicUpd.Retain, false, false, null);
buf.WriteByte(willTopicUpdByte);
buf.WriteBytes(Encoding.UTF8.GetBytes(willTopicUpd.Topic.Value));
}
break;
case SNType.WILL_MSG_UPD:
WillMsgUpd willMsgUpd = (WillMsgUpd)message;
buf.WriteBytes(willMsgUpd.Content);
break;
case SNType.WILL_TOPIC_REQ:
case SNType.WILL_MSG_REQ:
case SNType.PINGRESP:
break;
case SNType.ENCAPSULATED:
Encapsulated encapsulated = (Encapsulated)message;
buf.WriteByte(Controls.encode(encapsulated.radius));
buf.WriteBytes(Encoding.UTF8.GetBytes(encapsulated.wirelessNodeID));
buf.WriteBytes(SNParser.encode(encapsulated.message));
break;
default:
break;
}
if (type != SNType.ENCAPSULATED && message.getLength() != buf.ReadableBytes)
{
throw new MalformedMessageException("invalid message encoding: expected length-" + message.getLength() + ",actual-" + buf.ReadableBytes);
}
return(buf);
}
