public TimeSeriesData(String feed_key, String feed_timezone)
{
_feedKey = feed_key;
_feedTimeZone = TimeZoneInfo.FindSystemTimeZoneById(feed_timezone);
_messages = new List<NgestMessage>();
_currentMessage = new NgestMessage(NgestMessage.TIMESERIES_TYPE, _feedKey);
_messages.Add(_currentMessage);
}
public void addValue(DateTime timestamp, String field, Object value)
{
DateTime delocalized;
// Delocalize timestamp, if it's not already UTC
if (_feedTimeZone != TimeZoneInfo.Utc)
{
delocalized = delocalizeTimestamp(timestamp);
} else
{
delocalized = timestamp;
}
// Stringify timestamps.. basically
String delocalizedStr = delocalized.ToString(TIMESTAMP_FORMAT);
try
{
// Try adding the data point to the current message
bool accepted = _currentMessage.addData(
delocalizedStr,
field, value);
if (!accepted)
{
// Current message is full!
// Create new message
_currentMessage = new NgestMessage(NgestMessage.TIMESERIES_TYPE, _feedKey);
// Add data.. no way for this to fail
_currentMessage.addData(delocalizedStr, field, value);
// Add to messages list
_messages.Add(_currentMessage);
}
}
catch (NonUniqueFieldIDException e)
{
Console.WriteLine("Field ID: " + field + " already exists at: "
+ timestamp.ToString(TIMESTAMP_FORMAT));
}
}
public List<String> getJSONData()
{
List<NgestMessage> nGestMessages = new List<NgestMessage>();
List<TimeSeriesDataObject> dataBucket =
new List<TimeSeriesDataObject>();
List<String> ret = new List<String>();
// Organize the data into buckets of MAX_BUCKET_SIZE or less
foreach (KeyValuePair<DateTime, TimeSeriesDataObject> entry in _data)
{
Dictionary<String, String> bucket = new Dictionary<String, String>();
// Get the data at this timestamp
Dictionary<String, String> fields = entry.Value.Data;
// Now have appropriately sized bucket of MAX_BUCKET_SIZE or less
NgestMessage message =
new NgestMessage(TimeSeriesData.TYPE,
_feedKey,
dataBucket);
foreach (KeyValuePair<String, String> field in fields)
{
bucket.Add(field.Key, field.Value);
if (bucket.Keys.Count == MAX_BUCKET_SIZE)
{
}
}
// We want to portion the buckets into
// Accumulate bucket size
// This is basically the number of keys
bucketSize += entry.Value.Length;
// Determine if this data bucket is finished
if ((bucketSize >= MAX_BUCKET_SIZE) && (dataBucket.Count > 0))
{
// Data bucket full, add to list of buckets and clear out
// for next time
nGestMessages.Add(message);
dataBucket = new List<TimestampedValues>();
bucketSize = 0;
}
// Something of a complicated data structure to serialize correctly
TimestampedValues v =
new TimestampedValues(
entry.Key.ToString(TimeSeriesData.TIMESTAMP_FORMAT),
entry.Value.Data);
dataBucket.Add(v);
}
if (dataBucket.Count > 0)
{
// Append any remainder values
NgestMessage message =
new NgestMessage(TimeSeriesData.TYPE,
_feedKey,
dataBucket);
nGestMessages.Add(message);
}
// Could do this in initial loop.. breaking it out to its own loop for simplicity
foreach(var message in nGestMessages)
{
// Serialize and add to return list
ret.Add(JsonConvert.SerializeObject(message, Formatting.Indented));
}
return ret;
}
