// By Morten Kvistgaard
public virtual byte[] GetEncodedTrends(uint start, int count, out BacnetResultFlags status)
{
status = BacnetResultFlags.NONE;
start--; //position is 1 based
if (start >= m_PROP_RECORD_COUNT || (start + count) > m_PROP_RECORD_COUNT)
{
return(null);
}
if (start == 0)
{
status |= BacnetResultFlags.FIRST_ITEM;
}
if ((start + count) >= m_PROP_RECORD_COUNT)
{
status |= BacnetResultFlags.LAST_ITEM;
}
else
{
status |= BacnetResultFlags.MORE_ITEMS;
}
System.IO.BACnet.Serialize.EncodeBuffer buffer = new System.IO.BACnet.Serialize.EncodeBuffer();
int offset;
if (m_PROP_RECORD_COUNT < m_PROP_BUFFER_SIZE) // the buffer is not full
{
offset = 0;
}
else
{
offset = LogPtr; // circular buffer
}
for (uint i = start; i < (start + count); i++)
{
System.IO.BACnet.Serialize.Services.EncodeLogRecord(buffer, TrendBuffer[(offset + i) % TrendBuffer.Length]);
}
return(buffer.ToArray());
}
// Ici les remplacement de la lecture de quelques élements
private static void m_storage_ReadOverride(BacnetObjectId object_id, BacnetPropertyIds property_id, uint array_index, out IList <BacnetValue> value, out DeviceStorage.ErrorCodes status, out bool handled)
{
handled = true;
value = new BacnetValue[0];
status = DeviceStorage.ErrorCodes.Good;
if (object_id.type == BacnetObjectTypes.OBJECT_DEVICE && property_id == BacnetPropertyIds.PROP_OBJECT_LIST)
{
if (array_index == 0)
{
//object list count
value = new BacnetValue[] { new BacnetValue(BacnetApplicationTags.BACNET_APPLICATION_TAG_UNSIGNED_INT, (uint)m_storage.Objects.Length) };
}
else if (array_index != System.IO.BACnet.Serialize.ASN1.BACNET_ARRAY_ALL)
{
//object list index
value = new BacnetValue[] { new BacnetValue(BacnetApplicationTags.BACNET_APPLICATION_TAG_OBJECT_ID, new BacnetObjectId(m_storage.Objects[array_index - 1].Type, m_storage.Objects[array_index - 1].Instance)) };
}
else
{
//object list whole
BacnetValue[] list = new BacnetValue[m_storage.Objects.Length];
for (int i = 0; i < list.Length; i++)
{
list[i].Tag = BacnetApplicationTags.BACNET_APPLICATION_TAG_OBJECT_ID;
list[i].Value = new BacnetObjectId(m_storage.Objects[i].Type, m_storage.Objects[i].Instance);
}
value = list;
}
}
else if (object_id.type == BacnetObjectTypes.OBJECT_DEVICE && object_id.instance == m_storage.DeviceId && property_id == BacnetPropertyIds.PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED)
{
BacnetValue v = new BacnetValue();
v.Tag = BacnetApplicationTags.BACNET_APPLICATION_TAG_BIT_STRING;
BacnetBitString b = new BacnetBitString();
b.SetBit((byte)BacnetObjectTypes.MAX_ASHRAE_OBJECT_TYPE, false); //set all false
b.SetBit((byte)BacnetObjectTypes.OBJECT_ANALOG_INPUT, true);
b.SetBit((byte)BacnetObjectTypes.OBJECT_DEVICE, true);
b.SetBit((byte)BacnetObjectTypes.OBJECT_ANALOG_VALUE, true);
b.SetBit((byte)BacnetObjectTypes.OBJECT_CHARACTERSTRING_VALUE, true);
b.SetBit((byte)BacnetObjectTypes.OBJECT_MULTI_STATE_VALUE, true);
b.SetBit((byte)BacnetObjectTypes.OBJECT_BINARY_VALUE, true);
v.Value = b;
value = new BacnetValue[] { v };
}
else if (object_id.type == BacnetObjectTypes.OBJECT_DEVICE && object_id.instance == m_storage.DeviceId && property_id == BacnetPropertyIds.PROP_PROTOCOL_SERVICES_SUPPORTED)
{
BacnetValue v = new BacnetValue();
v.Tag = BacnetApplicationTags.BACNET_APPLICATION_TAG_BIT_STRING;
BacnetBitString b = new BacnetBitString();
b.SetBit((byte)BacnetServicesSupported.MAX_BACNET_SERVICES_SUPPORTED, false); //set all false
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_SUBSCRIBE_COV, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_I_AM, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_WHO_IS, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_READ_PROP_MULTIPLE, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_READ_PROPERTY, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_WRITE_PROPERTY, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_CONFIRMED_COV_NOTIFICATION, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_UNCONFIRMED_COV_NOTIFICATION, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_SUBSCRIBE_COV_PROPERTY, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_REINITIALIZE_DEVICE, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_DEVICE_COMMUNICATION_CONTROL, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_TIME_SYNCHRONIZATION, true);
b.SetBit((byte)BacnetServicesSupported.SERVICE_SUPPORTED_UTC_TIME_SYNCHRONIZATION, true);
v.Value = b;
value = new BacnetValue[] { v };
}
else if (object_id.type == BacnetObjectTypes.OBJECT_DEVICE && object_id.instance == m_storage.DeviceId && property_id == BacnetPropertyIds.PROP_SEGMENTATION_SUPPORTED)
{
BacnetValue v = new BacnetValue();
v.Tag = BacnetApplicationTags.BACNET_APPLICATION_TAG_ENUMERATED;
v.Value = (uint)BacnetSegmentations.SEGMENTATION_BOTH;
value = new BacnetValue[] { v };
}
else if (object_id.type == BacnetObjectTypes.OBJECT_DEVICE && object_id.instance == m_storage.DeviceId && property_id == BacnetPropertyIds.PROP_SYSTEM_STATUS)
{
BacnetValue v = new BacnetValue();
v.Tag = BacnetApplicationTags.BACNET_APPLICATION_TAG_ENUMERATED;
v.Value = (uint)BacnetDeviceStatus.OPERATIONAL; //can we be in any other mode I wonder?
value = new BacnetValue[] { v };
}
else if (object_id.type == BacnetObjectTypes.OBJECT_DEVICE && object_id.instance == m_storage.DeviceId && property_id == BacnetPropertyIds.PROP_ACTIVE_COV_SUBSCRIPTIONS)
{
List <BacnetValue> list = new List <BacnetValue>();
foreach (KeyValuePair <BacnetObjectId, List <Subscription> > entry in m_subscriptions)
{
foreach (Subscription sub in entry.Value)
{
//encode
System.IO.BACnet.Serialize.EncodeBuffer buffer = new System.IO.BACnet.Serialize.EncodeBuffer();
BacnetCOVSubscription cov = new BacnetCOVSubscription();
cov.Recipient = sub.reciever_address;
cov.subscriptionProcessIdentifier = sub.subscriberProcessIdentifier;
cov.monitoredObjectIdentifier = sub.monitoredObjectIdentifier;
cov.monitoredProperty = sub.monitoredProperty;
cov.IssueConfirmedNotifications = sub.issueConfirmedNotifications;
cov.TimeRemaining = (uint)sub.lifetime - (uint)(DateTime.Now - sub.start).TotalMinutes;
cov.COVIncrement = sub.covIncrement;
System.IO.BACnet.Serialize.ASN1.encode_cov_subscription(buffer, cov);
//add
BacnetValue v = new BacnetValue();
v.Tag = BacnetApplicationTags.BACNET_APPLICATION_TAG_COV_SUBSCRIPTION;
v.Value = buffer.ToArray();
list.Add(v);
}
}
value = list;
}
else if (object_id.type == BacnetObjectTypes.OBJECT_OCTETSTRING_VALUE && object_id.instance == 0 && property_id == BacnetPropertyIds.PROP_PRESENT_VALUE)
{
//this is our huge blob
BacnetValue v = new BacnetValue();
v.Tag = BacnetApplicationTags.BACNET_APPLICATION_TAG_OCTET_STRING;
byte[] blob = new byte[2000];
for (int i = 0; i < blob.Length; i++)
{
blob[i] = (i % 2 == 0) ? (byte)'A' : (byte)'B';
}
v.Value = blob;
value = new BacnetValue[] { v };
}
else if (object_id.type == BacnetObjectTypes.OBJECT_GROUP && property_id == BacnetPropertyIds.PROP_PRESENT_VALUE)
{
//get property list
IList <BacnetValue> properties;
if (m_storage.ReadProperty(object_id, BacnetPropertyIds.PROP_LIST_OF_GROUP_MEMBERS, System.IO.BACnet.Serialize.ASN1.BACNET_ARRAY_ALL, out properties) != DeviceStorage.ErrorCodes.Good)
{
value = new BacnetValue[] { new BacnetValue(BacnetApplicationTags.BACNET_APPLICATION_TAG_ERROR, new BacnetError(BacnetErrorClasses.ERROR_CLASS_DEVICE, BacnetErrorCodes.ERROR_CODE_INTERNAL_ERROR)) };
}
else
{
List <BacnetValue> _value = new List <BacnetValue>();
foreach (BacnetValue p in properties)
{
if (p.Value is BacnetReadAccessSpecification)
{
BacnetReadAccessSpecification prop = (BacnetReadAccessSpecification)p.Value;
BacnetReadAccessResult result = new BacnetReadAccessResult();
result.objectIdentifier = prop.objectIdentifier;
List <BacnetPropertyValue> result_values = new List <BacnetPropertyValue>();
foreach (BacnetPropertyReference r in prop.propertyReferences)
{
BacnetPropertyValue prop_value = new BacnetPropertyValue();
prop_value.property = r;
if (m_storage.ReadProperty(prop.objectIdentifier, (BacnetPropertyIds)r.propertyIdentifier, r.propertyArrayIndex, out prop_value.value) != DeviceStorage.ErrorCodes.Good)
{
prop_value.value = new BacnetValue[] { new BacnetValue(BacnetApplicationTags.BACNET_APPLICATION_TAG_ERROR, new BacnetError(BacnetErrorClasses.ERROR_CLASS_DEVICE, BacnetErrorCodes.ERROR_CODE_INTERNAL_ERROR)) };
}
result_values.Add(prop_value);
}
result.values = result_values;
_value.Add(new BacnetValue(BacnetApplicationTags.BACNET_APPLICATION_TAG_READ_ACCESS_RESULT, result));
}
}
value = _value;
}
}
else
{
handled = false;
}
}
