/// <summary>
/// Pushes a value to it's parent data stream on MongoDB.
/// </summary>
/// <param name="data"></param>
private void PushProcessData(Value data)
{
//If Mongo unaccessible, ignore!
if (!_mongoAccessible) return;
//Merges all values then replaces the entire document.
var collection = _db.GetCollection<Process>("ProcessData");
var filter = Builders<Process>.Filter.Eq("DeviceId", data.DeviceId);
var result = collection.Find(filter).ToList();
if (result.Count > 0)
{
//Submit the returned Device and the new Value for commital.
PushProcessData(result[0],data);
}
}
/// <summary>
/// Push the Process object and the newest value to MongoDB.
/// Finds the Device header in Mongo's ProcessData and appends
/// the new value to it.
/// </summary>
private void PushProcessData(Process data, Value newValue = null)
{
//If Mongo unaccessible, ignore!
if (!_mongoAccessible) return;
//Merges all values then replaces the entire document.
var collection = _db.GetCollection<Process>("ProcessData");
var filter = Builders<Process>.Filter.Eq("DeviceId", data.DeviceId);
var result = collection.Find(filter).ToList();
if (result.Count > 0)
{
var entity = result[0];
data.ObjectId = entity.ObjectId;
var currentVals = result[0].Values;
var allValues = new List<Value>();
//If not null, add the new value to the device's collection.
if (newValue != null) allValues.Add(newValue);
allValues.AddRange(currentVals);
allValues.AddRange(data.Values);
data.Values = allValues;
}
var update = collection.ReplaceOne
(
item => item.DeviceId == data.DeviceId,
data,
new UpdateOptions { IsUpsert = true }
);
}
/// <summary>
/// Posts the parametised Value object directly into the database.
/// </summary>
/// <param name="value"></param>
public void AddNewValue(Value value)
{
if (!_mongoAccessible) return;
try
{
_db.GetCollection<Value>("Values").InsertOne(value);
PushProcessData(value);
}
catch (Exception e)
{
DebugOutput.Print(
$"Could not store Value {value.ValueId}'s value ({value.StringValue}) in MongoDb. ", e.Message);
}
}
