private async Task writeDataAsync(List <T> samples, string dim, long index)
{
// Debug.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + " 序列化payload");
//var ms = new MemoryStream();
//Serializer.Serialize(ms, samples);
//byte[] result = ms.ToArray();
byte[] result = ZeroFormatterSerializer.Serialize(samples);
// Debug.WriteLine("size: "+result.Count());
// Debug.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + " 结束序列化payload");
SEPayload newPayload = new SEPayload();
newPayload.parentid = signalId;
newPayload.indexes = index;
newPayload.samples = result;
newPayload.dimensions = dim;
// Debug.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + " 插入payload");
await mapper.InsertAsync <SEPayload>(newPayload);
// Debug.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + " 结束插入payload");
}
public async Task AppendSampleAsync(List <long> dim, List <T> samples)
{
// mySignal.IsWritting = true;
long index;
string dimension = DimensionsToText(dim);
if (mySignal.IsWritting == true)
{
cacheBuffer[dimension].templeSample.AddRange(samples);
}
mySignal.IsWritting = true;
if (lastDimension.Equals(dimension))
{
List <T> templeSamples = cacheBuffer[dimension].templeSample;
long templeIndex = cacheBuffer[dimension].templeIndex;
if (samples.Count + templeSamples.Count >= sampleCount)
{
//补充完再添加
List <T> data = new List <T>();
templeSamples.AddRange(samples);
//把缓存Buffer里的数据写入数据库
while (templeSamples.Count >= sampleCount)
{
index = templeIndex + 1;
//保证每个Payload大小为sampleCount
for (int i = 0; i < sampleCount; i++)
{
data.Add(templeSamples[i]);
}
templeSamples.RemoveRange(0, (int)sampleCount);
await writeDataAsync(data, dimension, index);
templeIndex = index;
}
cacheBuffer[dimension].templeIndex = templeIndex;
}
else
{
//把数据保存在缓存里
cacheBuffer[dimension].templeSample.AddRange(samples);
}
}
else
{
List <T> templeSamples = new List <T>();
long templeIndex = -1;
if (cacheBuffer.ContainsKey(dimension))
{
templeSamples.AddRange(cacheBuffer[dimension].templeSample);
templeIndex = cacheBuffer[dimension].templeIndex;
}
else
{
SEPayload lastPayload = (await mapper.FetchAsync <SEPayload>("SELECT * FROM sepayload where parentid=? and dimensions=?", signalId, dimension)).LastOrDefault();
PayloadCache <T> payloadCache = new PayloadCache <T>();
if (lastPayload != null)
{
templeSamples = ZeroFormatterSerializer.Deserialize <List <T> >(lastPayload.samples);
//var om = new MemoryStream(lastPayload.samples);
//templeSamples = Serializer.Deserialize<List<T>>(om);
templeIndex = lastPayload.indexes - 1;
payloadCache.templeIndex = templeIndex;
payloadCache.templeSample = templeSamples;
}
cacheBuffer.Add(dimension, payloadCache);
}
if (samples.Count + templeSamples.Count >= sampleCount)
{
List <T> data = new List <T>();
templeSamples.AddRange(samples);
while (templeSamples.Count >= sampleCount)
{
index = templeIndex + 1;
for (int i = 0; i < sampleCount; i++)
{
data.Add(templeSamples[i]);
}
templeSamples.RemoveRange(0, (int)sampleCount);
await writeDataAsync(data, dimension, index);
templeIndex = index;
}
cacheBuffer[dimension].templeSample.Clear();
cacheBuffer[dimension].templeSample.AddRange(templeSamples);
cacheBuffer[dimension].templeIndex = templeIndex;
lastDimension = dimension;
}
else
{
cacheBuffer[dimension].templeSample.AddRange(samples);
lastDimension = dimension;
}
}
mySignal.IsWritting = false;
}
