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535 lines (470 loc) · 21.7 KB
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using System;
using System.Collections.Generic;
using NRedisStack.Literals.Enums;
using NRedisStack.DataTypes;
using NRedisStack.Extensions;
using StackExchange.Redis;
using NRedisStack.Bloom.DataTypes;
using NRedisStack.CuckooFilter.DataTypes;
using NRedisStack.CountMinSketch.DataTypes;
using NRedisStack.TopK.DataTypes;
using NRedisStack.Tdigest.DataTypes;
namespace NRedisStack
{
internal static class ResponseParser
{
public static bool OKtoBoolean(this RedisResult result)
{
return result.ToString() == "OK";
}
public static bool[] ToBooleanArray(this RedisResult result)
{
RedisResult[]? redisResults = result.ToArray();
bool[] boolArr = new bool[redisResults.Length];
for (int i = 0; i < redisResults.Length; i++)
{
boolArr[i] = redisResults[i].ToString() == "1";
}
return boolArr;
}
public static RedisResult[] ToArray(this RedisResult result)
{
var redisResults = (RedisResult[]?)result;
if (redisResults != null)
return redisResults;
throw new ArgumentNullException(nameof(redisResults));
}
public static long ToLong(this RedisResult result)
{
if ((long?)result == null)
throw new ArgumentNullException(nameof(result));
return (long)result;
}
public static double ToDouble(this RedisResult result)
{
if ((double?)result == null)
throw new ArgumentNullException(nameof(result));
return (double)result;
}
public static double[] ToDoubleArray(this RedisResult result)
{
List<double> redisResults = new List<double>();
foreach (var res in result.ToArray())
{
redisResults.Add(ToDouble(res));
}
return redisResults.ToArray();
}
public static long[] ToLongArray(this RedisResult result)
{
List<long> redisResults = new List<long>();
foreach (var res in result.ToArray())
{
redisResults.Add(ToLong(res));
}
return redisResults.ToArray();
}
public static TimeStamp ToTimeStamp(this RedisResult result)
{
if (result.Type == ResultType.None) return null;
return new TimeStamp((long)result);
}
public static IReadOnlyList<TimeStamp> ToTimeStampArray(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
var list = new List<TimeStamp>(redisResults.Length);
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, timestamp => list.Add(ToTimeStamp(timestamp)));
return list;
}
public static TimeSeriesTuple? ToTimeSeriesTuple(this RedisResult result)
{
RedisResult[] redisResults = result.ToArray();
if (redisResults.Length == 0) return null;
return new TimeSeriesTuple(ToTimeStamp(redisResults[0]), (double)redisResults[1]);
}
public static Tuple<long, Byte[]> ToScanDumpTuple(this RedisResult result)
{
RedisResult[] redisResults = result.ToArray();
if (redisResults == null || redisResults.Length == 0) return null;
return new Tuple<long, Byte[]>((long)redisResults[0], (Byte[])redisResults[1]);
}
public static HashEntry ToHashEntry(this RedisResult result)
{
RedisResult[] redisResults = result.ToArray();
if (redisResults.Length < 2)
throw new ArgumentOutOfRangeException(nameof(result));
return new HashEntry((RedisValue)(redisResults[0]), ((RedisValue)redisResults[1]));
}
public static HashEntry[] ToHashEntryArray(this RedisResult result)
{
RedisResult[] redisResults = result.ToArray();
var hash = new HashEntry[redisResults.Length / 2];
if (redisResults.Length == 0) return hash;
for (int i = 0; i < redisResults.Length - 1; i += 2)
hash[i / 2] = new HashEntry(((RedisValue)redisResults[i]), ((RedisValue)redisResults[i + 1]));
return hash;
}
public static IReadOnlyList<TimeSeriesTuple> ToTimeSeriesTupleArray(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
var list = new List<TimeSeriesTuple>(redisResults.Length);
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, tuple => list.Add(ToTimeSeriesTuple(tuple)));
return list;
}
public static IReadOnlyList<TimeSeriesLabel> ToLabelArray(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
var list = new List<TimeSeriesLabel>(redisResults.Length);
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, labelResult =>
{
RedisResult[] labelTuple = (RedisResult[])labelResult;
list.Add(new TimeSeriesLabel((string)labelTuple[0], (string)labelTuple[1]));
});
return list;
}
// public static IReadOnlyList<TimeSeriesCunck> ToCunckArray(this RedisResult result)
// {
// RedisResult[] redisResults = (RedisResult[])result;
// var list = new List<TimeSeriesCunck>(redisResults.Length);
// if (redisResults.Length == 0) return list;
// Array.ForEach(redisResults, chunckResult =>
// {
// RedisResult[] labelTuple = (RedisResult[])labelResult;
// list.Add(new TimeSeriesCunck((string)labelTuple[0], (string)labelTuple[1]));
// });
// return list;
// }
public static IReadOnlyList<(string key, IReadOnlyList<TimeSeriesLabel> labels, TimeSeriesTuple value)> ParseMGetResponse(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
var list = new List<(string key, IReadOnlyList<TimeSeriesLabel> labels, TimeSeriesTuple values)>(redisResults.Length);
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, MRangeValue =>
{
RedisResult[] MRangeTuple = (RedisResult[])MRangeValue;
string key = (string)MRangeTuple[0];
IReadOnlyList<TimeSeriesLabel> labels = ToLabelArray(MRangeTuple[1]);
TimeSeriesTuple value = ToTimeSeriesTuple(MRangeTuple[2]);
list.Add((key, labels, value));
});
return list;
}
public static IReadOnlyList<(string key, IReadOnlyList<TimeSeriesLabel> labels, IReadOnlyList<TimeSeriesTuple> values)> ParseMRangeResponse(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
var list = new List<(string key, IReadOnlyList<TimeSeriesLabel> labels, IReadOnlyList<TimeSeriesTuple> values)>(redisResults.Length);
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, MRangeValue =>
{
RedisResult[] MRangeTuple = (RedisResult[])MRangeValue;
string key = (string)MRangeTuple[0];
IReadOnlyList<TimeSeriesLabel> labels = ToLabelArray(MRangeTuple[1]);
IReadOnlyList<TimeSeriesTuple> values = ToTimeSeriesTupleArray(MRangeTuple[2]);
list.Add((key, labels, values));
});
return list;
}
public static TimeSeriesRule ToRule(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
string destKey = (string)redisResults[0];
long bucketTime = (long)redisResults[1];
var aggregation = AggregationExtensions.AsAggregation((string)redisResults[2]);
return new TimeSeriesRule(destKey, bucketTime, aggregation);
}
public static IReadOnlyList<TimeSeriesRule> ToRuleArray(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
var list = new List<TimeSeriesRule>();
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, rule => list.Add(ToRule(rule)));
return list;
}
public static TsDuplicatePolicy? ToPolicy(this RedisResult result)
{
var policyStatus = (string)result;
if (String.IsNullOrEmpty(policyStatus) || policyStatus == "(nil)")
{
return null;
}
return DuplicatePolicyExtensions.AsPolicy(policyStatus.ToUpper());
}
public static BloomInformation ToBloomInfo(this RedisResult result) //TODO: Think about a different implementation, because if the output of BF.INFO changes or even just the names of the labels then the parsing will not work
{
long capacity, size, numberOfFilters, numberOfItemsInserted, expansionRate;
capacity = size = numberOfFilters = numberOfItemsInserted = expansionRate = -1;
RedisResult[] redisResults = result.ToArray();
for (int i = 0; i < redisResults.Length; ++i)
{
string? label = redisResults[i++].ToString();
// string.Compare(label, "Capacity", true)
switch (label)
{
case "Capacity":
capacity = (long)redisResults[i];
break;
case "Size":
size = (long)redisResults[i];
break;
case "Number of filters":
numberOfFilters = (long)redisResults[i];
break;
case "Number of items inserted":
numberOfItemsInserted = (long)redisResults[i];
break;
case "Expansion rate":
expansionRate = (long)redisResults[i];
break;
}
}
return new BloomInformation(capacity, size, numberOfFilters, numberOfItemsInserted, expansionRate);
}
public static CuckooInformation ToCuckooInfo(this RedisResult result) //TODO: Think about a different implementation, because if the output of BF.INFO changes or even just the names of the labels then the parsing will not work
{
long size, numberOfBuckets, numberOfFilter, numberOfItemsInserted,
numberOfItemsDeleted, bucketSize, expansionRate, maxIteration;
size = numberOfBuckets = numberOfFilter =
numberOfItemsInserted = numberOfItemsDeleted =
bucketSize = expansionRate = maxIteration = -1;
RedisResult[] redisResults = result.ToArray();
for (int i = 0; i < redisResults.Length; ++i)
{
string? label = redisResults[i++].ToString();
switch (label)
{
case "Size":
size = (long)redisResults[i];
break;
case "Number of buckets":
numberOfBuckets = (long)redisResults[i];
break;
case "Number of filter":
numberOfFilter = (long)redisResults[i];
break;
case "Number of items inserted":
numberOfItemsInserted = (long)redisResults[i];
break;
case "Number of items deleted":
numberOfItemsDeleted = (long)redisResults[i];
break;
case "Bucket size":
bucketSize = (long)redisResults[i];
break;
case "Expansion rate":
expansionRate = (long)redisResults[i];
break;
case "Max iteration":
maxIteration = (long)redisResults[i];
break;
}
}
return new CuckooInformation(size, numberOfBuckets, numberOfFilter, numberOfItemsInserted,
numberOfItemsDeleted, bucketSize, expansionRate, maxIteration);
}
public static CmsInformation ToCmsInfo(this RedisResult result) //TODO: Think about a different implementation, because if the output of CMS.INFO changes or even just the names of the labels then the parsing will not work
{
long width, depth, count;
width = depth = count = -1;
RedisResult[] redisResults = result.ToArray();
for (int i = 0; i < redisResults.Length; ++i)
{
string? label = redisResults[i++].ToString();
switch (label)
{
case "width":
width = (long)redisResults[i];
break;
case "depth":
depth = (long)redisResults[i];
break;
case "count":
count = (long)redisResults[i];
break;
}
}
return new CmsInformation(width, depth, count);
}
public static TopKInformation ToTopKInfo(this RedisResult result) //TODO: Think about a different implementation, because if the output of CMS.INFO changes or even just the names of the labels then the parsing will not work
{
long k, width, depth;
double decay;
k = width = depth = -1;
decay = -1.0;
RedisResult[] redisResults = result.ToArray();
for (int i = 0; i < redisResults.Length; ++i)
{
string? label = redisResults[i++].ToString();
switch (label)
{
case "k":
k = (long)redisResults[i];
break;
case "width":
width = (long)redisResults[i];
break;
case "depth":
depth = (long)redisResults[i];
break;
case "decay":
decay = (double)redisResults[i];
break;
}
}
return new TopKInformation(k, width, depth, decay);
}
public static TdigestInformation ToTdigestInfo(this RedisResult result) //TODO: Think about a different implementation, because if the output of CMS.INFO changes or even just the names of the labels then the parsing will not work
{
long compression, capacity, mergedNodes, unmergedNodes, totalCompressions;
double mergedWeight, unmergedWeight;
compression = capacity = mergedNodes = unmergedNodes = totalCompressions = -1;
mergedWeight = unmergedWeight = -1.0;
RedisResult[] redisResults = result.ToArray();
for (int i = 0; i < redisResults.Length; ++i)
{
string? label = redisResults[i++].ToString();
switch (label)
{
case "Compression":
compression = (long)redisResults[i];
break;
case "Capacity":
capacity = (long)redisResults[i];
break;
case "Merged nodes":
mergedNodes = (long)redisResults[i];
break;
case "Unmerged nodes":
unmergedNodes = (long)redisResults[i];
break;
case "Merged weight":
mergedWeight = (double)redisResults[i];
break;
case "Unmerged weight":
unmergedWeight = (double)redisResults[i];
break;
case "Total compressions":
totalCompressions = (long)redisResults[i];
break;
}
}
return new TdigestInformation(compression, capacity, mergedNodes, unmergedNodes,
mergedWeight, unmergedWeight, totalCompressions);
}
public static TimeSeriesInformation ToTimeSeriesInfo(this RedisResult result)
{
long totalSamples = -1, memoryUsage = -1, retentionTime = -1, chunkSize = -1, chunkCount = -1;
TimeStamp? firstTimestamp = null, lastTimestamp = null;
IReadOnlyList<TimeSeriesLabel>? labels = null;
IReadOnlyList<TimeSeriesRule>? rules = null;
string? sourceKey = null, keySelfName = null;
TsDuplicatePolicy? duplicatePolicy = null;
IReadOnlyList<TimeSeriesChunck>? chunks = null;
RedisResult[] redisResults = (RedisResult[])result;
for (int i = 0; i < redisResults.Length; ++i)
{
string label = (string)redisResults[i++];
switch (label)
{
case "totalSamples":
totalSamples = (long)redisResults[i];
break;
case "memoryUsage":
memoryUsage = (long)redisResults[i];
break;
case "retentionTime":
retentionTime = (long)redisResults[i];
break;
case "chunkCount":
chunkCount = (long)redisResults[i];
break;
case "chunkSize":
chunkSize = (long)redisResults[i];
break;
case "maxSamplesPerChunk":
// If the property name is maxSamplesPerChunk then this is an old
// version of RedisTimeSeries and we used the number of samples before ( now Bytes )
chunkSize = chunkSize * 16;
break;
case "firstTimestamp":
firstTimestamp = ToTimeStamp(redisResults[i]);
break;
case "lastTimestamp":
lastTimestamp = ToTimeStamp(redisResults[i]);
break;
case "labels":
labels = ToLabelArray(redisResults[i]);
break;
case "sourceKey":
sourceKey = (string)redisResults[i];
break;
case "rules":
rules = ToRuleArray(redisResults[i]);
break;
case "duplicatePolicy":
// Avalible for > v1.4
duplicatePolicy = ToPolicy(redisResults[i]);
break;
case "keySelfName":
// Avalible for > v1.4
keySelfName = redisResults[i].ToString();
break;
case "Chunks":
// Avalible for > v1.4
chunks = ToTimeSeriesChunkArray(redisResults[i]);
break;
}
}
return new TimeSeriesInformation(totalSamples, memoryUsage, firstTimestamp,
lastTimestamp, retentionTime, chunkCount, chunkSize, labels, sourceKey, rules, duplicatePolicy, keySelfName, chunks);
}
public static IReadOnlyList<TimeSeriesChunck> ToTimeSeriesChunkArray(this RedisResult result)
{
RedisResult[] redisResults = (RedisResult[])result;
var list = new List<TimeSeriesChunck>();
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, chunk => list.Add(ToTimeSeriesChunk(chunk)));
return list;
}
public static TimeSeriesChunck ToTimeSeriesChunk(this RedisResult result)
{
long startTimestamp = -1, endTimestamp = -1, samples = -1, size = -1;
string bytesPerSample = "";
RedisResult[] redisResults = (RedisResult[])result;
for (int i = 0; i < redisResults.Length; ++i)
{
string label = (string)redisResults[i++];
switch (label)
{
case "startTimestamp":
startTimestamp = (long)redisResults[i];
break;
case "endTimestamp":
endTimestamp = (long)redisResults[i];
break;
case "samples":
samples = (long)redisResults[i];
break;
case "size":
size = (long)redisResults[i];
break;
case "bytesPerSample":
bytesPerSample = redisResults[i].ToString();
break;
}
}
return new TimeSeriesChunck(startTimestamp, endTimestamp,
samples, size, bytesPerSample);
}
public static IReadOnlyList<string> ToStringArray(this RedisResult result)
{
RedisResult[] redisResults = result.ToArray();
var list = new List<string>();
if (redisResults.Length == 0) return list;
Array.ForEach(redisResults, str => list.Add((string)str));
return list;
}
}
}