Esempio n. 1
0
        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);
        }
Esempio n. 2
0
        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);
        }