private int Decode_Service_Request(ref Byte[] request, uint request_len, ref BACNET_SUBSCRIBE_COV_DATA data)
{
int len = 0;
Byte tag_number = 0;
UInt32 len_value = 0;
UInt32 decoded_value = 0; /* for decoding */
UInt16 decoded_type = 0; /* for decoding */
// if (decode_is_context_tag(&apdu[len], 0))
len += BasicalProcessor.Decode_Tag_number_and_Value(ref request, ref tag_number, ref len_value, len);
len += BasicalProcessor.Decode_Unsigned(ref request, len_value, ref decoded_value, len);
data.subscriberProcessIdentifier = decoded_value;
/* tag 1 - monitoredObjectIdentifier */
len += BasicalProcessor.Decode_Tag_number_and_Value(ref request, ref tag_number, ref len_value, len);
len += BasicalProcessor.Decode_Object_Id(ref request, ref decoded_type, ref data.monitoredObjectIdentifier.instance, len);
data.monitoredObjectIdentifier.type = decoded_type;
/* optional parameters - if missing, means cancellation */
if ((uint)len < request_len)
{
if (BasicalProcessor.Decode_Is_Context_Tag(ref request, 2, len))
{
data.cancellationRequest = false;
len += BasicalProcessor.Decode_Tag_number_and_Value(ref request, ref tag_number, ref len_value, len);
data.issueConfirmedNotifications = BasicalProcessor.Decode_Context_Boolean(ref request, len);
len += (int)len_value;
// if (decode_is_context_tag(&apdu[len], 3))
len += BasicalProcessor.Decode_Tag_number_and_Value(ref request, ref tag_number, ref len_value, len);
len += BasicalProcessor.Decode_Unsigned(ref request, len_value, ref decoded_value, len);
data.lifetime = decoded_value;
}
else
{
data.cancellationRequest = true;
}
}
else
{
data.cancellationRequest = true;
}
return(len);
}
public int Uevent_Notify_Decode(ref Byte[] apdu, uint apdu_len, ref BACNET_EVENT_NOTIFICATION_DATA data)
{
int len = 0; /* return value */
int section_length = 0;
UInt32 value = 0;
Byte tag_number = 0;
uint len_value = 0;
/* tag 0 - processIdentifier */
section_length = BasicalProcessor.Decode_Context_Unsigned(ref apdu, 0, ref data.processIdentifier, len);
len += section_length;
/* tag 1 - initiatingObjectIdentifier */
len += BasicalProcessor.Decode_Tag_number_and_Value(ref apdu, ref tag_number, ref len_value, len);
section_length = BasicalProcessor.Decode_Object_Id(ref apdu, ref data.initiatingObjectIdentifier.type, ref data.initiatingObjectIdentifier.instance, len);
len += section_length;
/* tag 2 - eventObjectIdentifier */
len += BasicalProcessor.Decode_Tag_number_and_Value(ref apdu, ref tag_number, ref len_value, len);
section_length = BasicalProcessor.Decode_Object_Id(ref apdu, ref data.eventObjectIdentifier.type, ref data.eventObjectIdentifier.instance, len);
len += section_length;
/* tag 3 - timeStamp */
section_length = BasicalProcessor.Decode_Context_Timestamp(ref apdu, 3, ref data.timeStamp, len);
len += section_length;
/* tag 4 - noticicationClass */
section_length = BasicalProcessor.Decode_Context_Unsigned(ref apdu, 4, ref data.notificationClass, len);
len += section_length;
/* tag 5 - priority */
section_length = BasicalProcessor.Decode_Context_Unsigned(ref apdu, 5, ref value, len);
data.priority = (Byte)value;
len += section_length;
/* tag 6 - eventType */
section_length = BasicalProcessor.Decode_Context_Enumerated(ref apdu, 6, ref value, len);
data.eventType = (BACNET_EVENT_TYPE)value;
len += section_length;
/* tag 7 - messageText */ //option
//此处没写
/* tag 8 - notifyType */
section_length = BasicalProcessor.Decode_Context_Enumerated(ref apdu, 8, ref value, len);
data.notifyType = (BACNET_NOTIFY_TYPE)value;
len += section_length;
switch (data.notifyType)
{
case BACNET_NOTIFY_TYPE.NOTIFY_ALARM:
case BACNET_NOTIFY_TYPE.NOTIFY_EVENT:
/* tag 9 - ackRequired */
data.ackRequired = BasicalProcessor.Decode_Context_Boolean(ref apdu, len);
len++;
len++;
/* tag 10 - fromState */
section_length = BasicalProcessor.Decode_Context_Enumerated(ref apdu, 10, ref value, len);
data.fromState = (BACNET_EVENT_STATE)value;
len += section_length;
break;
default:
break;
}
/* tag 11 - toState */
section_length = BasicalProcessor.Decode_Context_Enumerated(ref apdu, 11, ref value, len);
data.toState = (BACNET_EVENT_STATE)value;
len += section_length;
/* tag 12 - eventValues */
if (BasicalProcessor.Decode_Is_Opening_Tag_Number(ref apdu, 12, len))
{
len++;
}
if (BasicalProcessor.Decode_Is_Opening_Tag_Number(ref apdu, (Byte )data.eventType, len))
{
len++;
}
if (data.notifyType == BACNET_NOTIFY_TYPE.NOTIFY_ALARM || data.notifyType == BACNET_NOTIFY_TYPE.NOTIFY_EVENT)
{
switch (data.eventType)
{
case BACNET_EVENT_TYPE.EVENT_CHANGE_OF_STATE:
// section_length = BasicalProcessor.Decode_Context_Poroperty_State(ref apdu, 0, ref data.notificationParams.newState, len);
len += section_length;
// section_length = BasicalProcessor.Decode_Context_Bitstring(ref apdu, 1, ref data.notificationParams.statusFlags, len);
len += section_length;
break;
default:
break;
}
if (BasicalProcessor.Decode_Is_Closing_Tag_Number(ref apdu, (Byte)data.eventType, len))
{
len++;
}
if (BasicalProcessor.Decode_Is_Closing_Tag_Number(ref apdu, 12, len))
{
len++;
}
}
return(len);
}
