public static ClockValues Decode(byte[] bytes, int startindex, long start, long end)
{
Span <byte> span = new Span <byte>(bytes);
byte datatype = bytes[startindex];
span = span.Slice(1);
//解析时标段;
int nn = Varint.Read(span, out int tsLen);
Span <byte> ts_src_span = span.Slice(nn, tsLen);
ulong[] ts = ArrayPool <ulong> .Shared.Rent(Constants.DefaultMaxPointsPerBlock);
Span <ulong> ts_to_span = new Span <ulong>(ts, 0, Constants.DefaultMaxPointsPerBlock);
BatchTimeStamp tdec = (BatchTimeStamp)CoderFactory.Get(DataTypeEnum.DateTime);
(int tscount, string tserror) = tdec.DecodeAll(ts_src_span, ts_to_span);
CoderFactory.Put(DataTypeEnum.DateTime, tdec);
if (tscount == 0 || tserror != null)
{
ArrayPool <ulong> .Shared.Return(ts);
return(null);
}
span = span.Slice(nn + tsLen);
//读取数值段.
nn = Varint.Read(span, out int vsLen);
Span <byte> vs_src_span = span.Slice(nn, vsLen);
span = span.Slice(nn + vsLen);
//解析质量段.
nn = Varint.Read(span, out int qsLen);
Span <byte> qs_src_span = span.Slice(nn, qsLen);
BatchInt64 qdec = (BatchInt64)CoderFactory.Get(DataTypeEnum.Integer);
long[] qs = ArrayPool <long> .Shared.Rent(tscount);
Span <long> qs_to_span = new Span <long>(qs, 0, tscount);
(int qscount, string qserror) = qdec.DecodeAll(qs_src_span, qs_to_span);
CoderFactory.Put(DataTypeEnum.Integer, qdec);
if (qscount != tscount || qserror != null)
{
ArrayPool <long> .Shared.Return(qs);
return(null);
}
//解析数据段.
ClockValues result = null;
if (datatype == DataTypeEnum.Double)
{
BatchDouble decoder = (BatchDouble)CoderFactory.Get(datatype);
double[] vs = ArrayPool <double> .Shared.Rent(tscount + 1);
Span <double> vs_to_span = new Span <double>(vs, 0, tscount + 1);
(int vscount, string vserror) = decoder.DecodeAll(vs_src_span, vs_to_span);
CoderFactory.Put(datatype, decoder);
if (vscount >= tscount && vserror == null)
{
result = new ClockValues(tscount);
for (int i = 0; i < tscount; i++)
{
long clock = (long)ts_to_span[i];
if (clock > end)
{
break;
}
if (clock >= start)
{
result.Append(new ClockDouble(clock, vs_to_span[i], (int)qs_to_span[i]));
}
}
}
ArrayPool <double> .Shared.Return(vs);
}
else if (datatype == DataTypeEnum.Boolean)
{
BatchBoolean decoder = (BatchBoolean)CoderFactory.Get(datatype);
bool[] vs = ArrayPool <bool> .Shared.Rent(tscount);
Span <bool> vs_to_span = new Span <bool>(vs, 0, tscount);
(int vscount, string vserror) = decoder.DecodeAll(vs_src_span, vs_to_span);
CoderFactory.Put(datatype, decoder);
if (vscount == tscount && vserror == null)
{
result = new ClockValues(tscount);
for (int i = 0; i < tscount; i++)
{
long clock = (long)ts_to_span[i];
if (clock > end)
{
break;
}
if (clock >= start)
{
result.Append(new ClockBoolean(clock, vs_to_span[i], (int)qs_to_span[i]));
}
}
}
ArrayPool <bool> .Shared.Return(vs);
}
else if (datatype == DataTypeEnum.Integer)
{
BatchInt64 decoder = (BatchInt64)CoderFactory.Get(datatype);
long[] vs = ArrayPool <long> .Shared.Rent(tscount);
Span <long> vs_to_span = new Span <long>(vs, 0, tscount);
(int vscount, string vserror) = decoder.DecodeAll(vs_src_span, vs_to_span);
CoderFactory.Put(datatype, decoder);
if (vscount == tscount && vserror == null)
{
result = new ClockValues(tscount);
for (int i = 0; i < tscount; i++)
{
long clock = (long)ts_to_span[i];
if (clock > end)
{
break;
}
if (clock >= start)
{
result.Append(new ClockInt64(clock, vs_to_span[i], (int)qs_to_span[i]));
}
}
}
ArrayPool <long> .Shared.Return(vs);
}
else if (datatype == DataTypeEnum.String)
{
BatchString decoder = (BatchString)CoderFactory.Get(datatype);
string[] vs = ArrayPool <string> .Shared.Rent(tscount);
Span <string> vs_to_span = new Span <string>(vs, 0, tscount);
(int vscount, string vserror) = decoder.DecodeAll(vs_src_span, vs_to_span);
CoderFactory.Put(datatype, decoder);
if (vscount == tscount && vserror == null)
{
result = new ClockValues(tscount);
for (int i = 0; i < tscount; i++)
{
long clock = (long)ts_to_span[i];
if (clock > end)
{
break;
}
if (clock >= start)
{
result.Append(new ClockString(clock, vs_to_span[i], (int)qs_to_span[i]));
}
}
}
ArrayPool <string> .Shared.Return(vs);
}
return(result);
}
public static (ByteWriter, string error) Encode(IList <IClockValue> values, int startIndex, int count)
{
if (values == null || values.Count == 0)
{
return(null, null);
}
IClockValue value0 = values[0];
byte datatype = value0.DataType;
ulong[] ts = ArrayPool <ulong> .Shared.Rent(count);
Span <ulong> ts_span = new Span <ulong>(ts, 0, count);
long[] qs = ArrayPool <long> .Shared.Rent(count);
Span <long> qs_span = new Span <long>(qs, 0, count);
ByteWriter tswriter = null, vswriter = null, qswriter = null;
string tserror = null, vserror = null, qserror = null;
if (datatype == DataTypeEnum.Double)
{
double[] vs = ArrayPool <double> .Shared.Rent(count);
Span <double> vs_span = new Span <double>(vs, 0, count);
int j = 0;
for (int i = startIndex; i < startIndex + count; i++, j++)
{
ClockDouble value = (ClockDouble)values[i];
ts_span[j] = (ulong)value.Clock;
vs_span[j] = value.Value;
qs_span[j] = value.Quality;
}
BatchDouble encoder = (BatchDouble)CoderFactory.Get(datatype);
(vswriter, vserror) = encoder.EncodingAll(vs_span);
ArrayPool <double> .Shared.Return(vs);
CoderFactory.Put(datatype, encoder);
}
else if (datatype == DataTypeEnum.Boolean)
{
bool[] vs = ArrayPool <bool> .Shared.Rent(count);
Span <bool> vs_span = new Span <bool>(vs, 0, count);
int j = 0;
for (int i = startIndex; i < startIndex + count; i++, j++)
{
ClockBoolean value = (ClockBoolean)values[i];
ts_span[j] = (ulong)value.Clock;
vs_span[j] = value.Value;
qs_span[j] = value.Quality;
}
BatchBoolean encoder = (BatchBoolean)CoderFactory.Get(datatype);
(vswriter, vserror) = encoder.EncodingAll(vs_span);
ArrayPool <bool> .Shared.Return(vs);
CoderFactory.Put(datatype, encoder);
}
else if (datatype == DataTypeEnum.Integer)
{
long[] vs = ArrayPool <long> .Shared.Rent(count);
Span <long> vs_span = new Span <long>(vs, 0, count);
int j = 0;
for (int i = startIndex; i < startIndex + count; i++, j++)
{
ClockInt64 value = (ClockInt64)values[i];
ts_span[j] = (ulong)value.Clock;
vs_span[j] = value.Value;
qs_span[j] = value.Quality;
}
BatchInt64 encoder = (BatchInt64)CoderFactory.Get(datatype);
(vswriter, vserror) = encoder.EncodingAll(vs_span);
ArrayPool <long> .Shared.Return(vs);
CoderFactory.Put(datatype, encoder);
}
else if (datatype == DataTypeEnum.String)
{
string[] vs = ArrayPool <string> .Shared.Rent(count);
Span <string> vs_span = new Span <string>(vs, 0, count);
int j = 0;
for (int i = startIndex; i < startIndex + count; i++, j++)
{
ClockString value = (ClockString)values[i];
ts_span[j] = (ulong)value.Clock;
vs_span[j] = value.Value;
qs_span[j] = value.Quality;
}
BatchString encoder = (BatchString)CoderFactory.Get(datatype);
(vswriter, vserror) = encoder.EncodingAll(vs_span);
ArrayPool <string> .Shared.Return(vs);
CoderFactory.Put(datatype, encoder);
}
bool good = (vserror == null && vswriter != null);
if (good)
{
BatchTimeStamp tenc = (BatchTimeStamp)CoderFactory.Get(DataTypeEnum.DateTime);
(tswriter, tserror) = tenc.EncodingAll(ts_span);
CoderFactory.Put(DataTypeEnum.DateTime, tenc);
good = (tswriter != null && tserror == null);
if (good)
{
BatchInt64 qenc = (BatchInt64)CoderFactory.Get(DataTypeEnum.Integer);
(qswriter, qserror) = qenc.EncodingAll(qs_span);
CoderFactory.Put(DataTypeEnum.Integer, qenc);
good = (qswriter != null && qserror == null);
}
}
ArrayPool <ulong> .Shared.Return(ts);
ArrayPool <long> .Shared.Return(qs);
if (good)
{
ByteWriter result = new ByteWriter(1 + Varint.MaxVarintLen64 + tswriter.Length + vswriter.Length + qswriter.Length);
result.Write(datatype); //first byte valuetype
result.Write(Varint.GetBytes(tswriter.Length));
result.Write(tswriter.EndWrite(), 0, tswriter.Length);
result.Write(Varint.GetBytes(vswriter.Length));
result.Write(vswriter.EndWrite(), 0, vswriter.Length);
result.Write(Varint.GetBytes(qswriter.Length));
result.Write(qswriter.EndWrite(), 0, qswriter.Length);
return(result, null);
}
if (tswriter != null)
{
tswriter.Release();
}
if (vswriter != null)
{
vswriter.Release();
}
if (qswriter != null)
{
qswriter.Release();
}
return(null, vserror != null ? vserror : tserror != null ? tserror : qserror);
}