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JsonDocument.cs
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JsonDocument.cs
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using Newtonsoft.Json.Linq;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using Neo.IronLua;
using Aerospike.Client.KVS;
namespace Aerospike.Database.LINQPadDriver.Extensions
{
/// <summary>
/// The structure used for Exporting records from a set.
/// </summary>
public struct JsonExportStructure
{
/// <summary>
/// The namespace associated with this record
/// </summary>
public string NameSpace;
/// <summary>
/// The Set associated with this record
/// </summary>
public string SetName;
/// <summary>
/// The record's Generation.
/// <see cref="Aerospike.Client.Record.generation"/>
/// </summary>
public int Generation;
/// <summary>
/// The record's Time-to-Live.
/// <see cref="Aerospike.Client.Record.TimeToLive"/>
/// <see cref="ARecord.AerospikeAPI.Expiration"/>
/// </summary>
public int? TimeToLive;
/// <summary>
/// The Record's Digest (Required)
/// </summary>
public byte[] Digest;
/// <summary>
/// The primary key of the record (optional)
/// </summary>
public object KeyValue;
/// <summary>
/// The associated record's bins (required)
/// </summary>
public IDictionary<string, object> Values;
}
public class JsonDocument : Newtonsoft.Json.Linq.JObject
{
public JsonDocument(IDictionary<object, object> dict)
: base(Newtonsoft.Json.Linq.JObject.FromObject(dict))
{
}
public JsonDocument(IDictionary<string, object> dict)
: base(Newtonsoft.Json.Linq.JObject.FromObject(dict))
{
}
public JsonDocument(Newtonsoft.Json.Linq.JObject jObject)
: base(jObject)
{
}
/// <summary>
/// Selects a <see cref="T:Newtonsoft.Json.Linq.JToken" /> using a JSONPath expression. Selects the token that matches the object path.
/// <seealso cref="Newtonsoft.Json.Linq.JToken.SelectTokens(string)"/>
/// </summary>
/// <param name="jsonPath">
/// A <see cref="T:System.String" /> that contains a JSONPath expression.
/// </param>
/// <returns>A <see cref="T:Newtonsoft.Json.Linq.JToken" />, or <c>null</c>.</returns>
/// <seealso cref="Newtonsoft.Json.Linq.JToken.SelectToken(string, Newtonsoft.Json.Linq.JsonSelectSettings?)"/>
/// <seealso cref="Newtonsoft.Json.Linq.JToken.SelectTokens(string)"/>
public Newtonsoft.Json.Linq.JToken JsonPath(string jsonPath)
{
return this.SelectToken(jsonPath);
}
/// <summary>
/// Selects a Newtonsoft.Json.Linq.JToken using a JSONPath expression. Selects the
/// token that matches the object path.
/// <seealso cref="Newtonsoft.Json.Linq.JToken.SelectTokens(string, bool)"/>
/// </summary>
/// <param name="jsonPath">A System.String that contains a JSONPath expression.</param>
/// <param name="errorWhenNoMatch">
/// A flag to indicate whether an error should be thrown if no tokens are found when
/// evaluating part of the expression.
/// </param>
/// <returns>
/// <see cref="Newtonsoft.Json.Linq.JToken"/>
/// </returns>
/// <seealso cref="Newtonsoft.Json.Linq.JToken.SelectToken(string, Newtonsoft.Json.Linq.JsonSelectSettings?)"/>
/// <seealso cref="Newtonsoft.Json.Linq.JToken.SelectTokens(string, bool)"/>
public Newtonsoft.Json.Linq.JToken JsonPath(string jsonPath, bool errorWhenNoMatch)
{
return this.SelectToken(jsonPath, errorWhenNoMatch);
}
public IDictionary<string, object> ToDictionary() => CDTConverter.ConvertToDictionary(this);
}
/// <summary>
/// Converts Json string into a List<object> or Directory<string,object>.
/// The Json string can consist of in-line Json typing.
/// Example:
/// <code>
/// "_id": {"$oid": "578f6fa2df35c7fbdbaed8c6"}
/// "bucket_start_date": {"$date": { "$numberLong": "1545886800000"}}
/// </code>
/// </summary>
public class CDTConverter : JsonConverter
{
private long _oid = 0;
bool _emptyStrIsNull = true;
public CDTConverter(bool treatEmptyStrAsNull = true)
{
this._emptyStrIsNull = treatEmptyStrAsNull;
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
var t = JToken.FromObject(value, serializer);
t.WriteTo(writer);
}
private object ReadObject(string propertyName, JToken jToken, JsonSerializer serializer)
{
if (propertyName[0] == '$')
{
if (propertyName.ToLower() == "$type")
{
var json = jToken.ToString();
var jSerial = new JsonSerializerSettings
{
TypeNameHandling = TypeNameHandling.All
};
return JsonConvert.DeserializeObject<object>(json, jSerial);
}
return ReadJsonType(propertyName, jToken, null, serializer);
}
return jToken.Value<object>();
}
private object ReadObject(JObject jObject, Dictionary<string, object> existingValue, JsonSerializer serializer)
{
bool onlyJsonType = false;
if (jObject.First is JProperty jProp
&& jProp.Name.ToLower() == "$type")
{
var newobject = ReadObject(jProp.Name, jObject, serializer);
existingValue.Add(jProp.Name,
newobject);
return newobject;
}
foreach (var kvp in jObject)
{
if (kvp.Key[0] == '$')
{
existingValue.Add(kvp.Key,
ReadObject(kvp.Key, kvp.Value, serializer));
onlyJsonType = true;
}
else if (kvp.Value is JObject subObject)
{
var newObject = new Dictionary<string, object>();
existingValue.Add(kvp.Key,
this.ReadObject(subObject, newObject, serializer));
}
else if (kvp.Value is JArray jArray)
{
var newList = new List<object>();
this.ReadObject(jArray, newList, serializer);
existingValue.Add(kvp.Key, newList);
}
else if(this._emptyStrIsNull
&& kvp.Value.Type == JTokenType.String
&& kvp.Value is JValue jStrValue)
{
var strValue = jStrValue.Value<string>();
existingValue.Add(kvp.Key,
strValue == string.Empty
? null
: strValue);
}
else if (kvp.Value is JValue jValue)
{
existingValue.Add(kvp.Key, jValue.Value);
}
else
{
existingValue.Add(kvp.Key, kvp.Value.Value<object>());
}
}
return onlyJsonType && existingValue.Count == 1 ? existingValue.Values.First() : existingValue;
}
private void ReadObject(JArray jToken, List<object> existingValue, JsonSerializer serializer)
{
foreach (var element in jToken)
{
if (element is JObject subObject)
{
var newObject = new Dictionary<string, object>();
existingValue.Add(this.ReadObject(subObject, newObject, serializer));
}
else if (element is JArray jArray)
{
var newList = new List<object>();
this.ReadObject(jArray, newList, serializer);
existingValue.Add(newList);
}
else if(this._emptyStrIsNull
&& element.Type == JTokenType.String
&& element is JValue jStrValue)
{
var strValue = jStrValue.Value<string>();
existingValue.Add(strValue == string.Empty
? null
: strValue);
}
else if (element is JValue jValue)
{
existingValue.Add(jValue.Value);
}
else
{
existingValue.Add(element.Value<object>());
}
}
}
private void ReadObject(JProperty jToken, Dictionary<string, object> existingValue, JsonSerializer serializer)
{
foreach (var element in jToken.Value)
{
if (element is JObject subObject)
{
var newObject = new Dictionary<string, object>();
existingValue.Add(jToken.Name, this.ReadObject(subObject, newObject, serializer));
}
else if (element is JArray jArray)
{
var newList = new List<object>();
this.ReadObject(jArray, newList, serializer);
existingValue.Add(jToken.Name, newList);
}
else if(this._emptyStrIsNull
&& element.Type == JTokenType.String
&& element is JValue jStrValue)
{
var strValue = jStrValue.Value<string>();
existingValue.Add(jToken.Name,
strValue == string.Empty
? null
: strValue);
}
else if (element is JValue jValue)
{
existingValue.Add(jToken.Name, jValue.Value);
}
else
{
existingValue.Add(jToken.Name, element.Value<object>());
}
}
}
/// <summary>
/// Determines the in-line Json Type and converts the Json value to that C# type
/// <code>
/// "$date" or "$datetime",
/// This can include an optional sub Json Type.Example:
/// " bucket_start_date": {"$date": { "$numberLong": "1545886800000"}}
/// "$datetimeoffset",
/// This can include an optional sub Json Type. Example:
/// " bucket_start_date ": { "$datetimeoffset": { "$numberLong": "1545886800000" } },
/// "$timespan",
/// This can include an optional sub Json Type. Example:
/// " bucket_start_time ": { "$timespan": { "$numberLong": "1545886800000" } },
/// "$timestamp",
/// "$guid" or "$uuid",
/// "$oid" or "$id",
/// If the Json string value equals 40 in length it will be treated as a digest and converted into a byte array.
/// Example:
/// " _id": { "$oid":"0080a245fabe57999707dc41ced60edc4ac7ac40" } ==> "_id":[00 80 A2 45 FA BE 57 99 97 07 DC 41 CE D6 0E DC 4A C7 AC 40]
/// This type can also take an optional keyword as a value. They are:
/// $guid or $uuid -- If provided, a new guid/uuid is generate as a unique value used
/// $numeric -- a sequential number starting at 1 will be used
/// Example:
/// " _id": { "$oid": "$uuid" } ==> Generates a new uuid as the _id value
/// "$numberint64" or "$numberlong" or "$long",
/// "$numberint32", or "$numberint" or "$int",
/// "$numberdecimal" or "$decimal",
/// "$numberdouble" or "$double" or "$number" or "$numeric",
/// "$numberfloat" or "$single" or "$float",
/// "$numberint16" or "$numbershort" or "$short",
/// "$numberuint32" or "$numberuint" or "$uint",
/// "$numberuint64" or "$numberulong" or "$ulong",
/// "$numberuint16" or "$numberushort" or "$ushort",
/// "$bool" or "$boolean"
/// </code>
/// </summary>
/// <param name="propType"></param>
/// <param name="jToken"></param>
/// <param name="existingValue"></param>
/// <param name="serializer"></param>
/// <returns></returns>
private object ReadJsonType(string propType, JToken jToken, object existingValue, JsonSerializer serializer)
{
var tToken = jToken.Type;
object vToken;
if (jToken is JObject jObject)
{
var newObject = new Dictionary<string, object>();
vToken = this.ReadObject(jObject, newObject, serializer);
}
else if (jToken is JValue jValue)
{
vToken = jValue.Value;
}
else
vToken = jToken.Value<object>();
switch (propType.ToLower())
{
case "$string":
return vToken?.ToString() ?? string.Empty;
case "$date":
case "$datetime":
case "$isodate":
case "$isodatetime":
{
if (vToken is DateTime tDateTime)
return tDateTime;
if (vToken is long lDateTime)
return DateTimeOffset.FromUnixTimeMilliseconds(lDateTime).DateTime;
if (vToken is int iDateTime)
return DateTimeOffset.FromUnixTimeMilliseconds(iDateTime).DateTime;
if (tToken == JTokenType.Integer)
{
return DateTimeOffset.FromUnixTimeMilliseconds(Convert.ToInt64(vToken)).DateTime;
}
return Aerospike.Database.LINQPadDriver.Helpers.CastToNativeType(propType, typeof(DateTime), propType, vToken);
}
case "$datetimeoffset":
case "$isodatetimeoffset":
{
if (vToken is DateTimeOffset tDateTime)
return tDateTime;
if (vToken is long lDateTime)
return DateTimeOffset.FromUnixTimeMilliseconds(lDateTime);
if (vToken is int iDateTime)
return DateTimeOffset.FromUnixTimeMilliseconds(iDateTime).DateTime;
if (tToken == JTokenType.Integer)
{
return DateTimeOffset.FromUnixTimeMilliseconds(Convert.ToInt64(vToken));
}
return Aerospike.Database.LINQPadDriver.Helpers.CastToNativeType(propType, typeof(DateTimeOffset), propType, vToken);
}
case "$timespan":
case "$time":
return Aerospike.Database.LINQPadDriver.Helpers.CastToNativeType(propType, typeof(TimeSpan), propType, vToken);
case "$timestamp":
return vToken;
case "$guid":
case "$uuid":
{
if (vToken is Guid guid)
return guid;
if (vToken is string sGuid)
return Guid.Parse(sGuid);
return vToken;
}
case "$oid":
case "$id":
{
if (vToken is string oid)
{
if (oid.Length == 40)
return Aerospike.Database.LINQPadDriver.Helpers.StringToByteArray(oid);
switch (oid.ToLower())
{
case "$guid":
case "$uuid":
return Guid.NewGuid().ToString();
case "$number":
case "$numeric":
return System.Threading.Interlocked.Increment(ref this._oid);
default:
break;
}
}
return vToken;
}
case "$numberint64":
case "$numberlong":
case "$long":
return Convert.ToInt64(vToken);
case "$numberint32":
return Convert.ToInt32(vToken);
case "$numberint":
case "$int":
return Convert.ToInt32(vToken);
case "$numberdecimal":
case "$decimal":
return Convert.ToDecimal(vToken);
case "$numberdouble":
case "$double":
case "$number":
case "$numeric":
return Convert.ToDouble(vToken);
case "$numberfloat":
case "$float":
case "$single":
return Convert.ToSingle(vToken);
case "$numberint16":
case "$numbershort":
case "$short":
return Convert.ToInt16(vToken);
case "$numberuint32":
case "$numberuint":
case "$uint":
return Convert.ToUInt32(vToken);
case "$numberuint64":
case "$numberulong":
case "$ulong":
return Convert.ToUInt64(vToken);
case "$numberuint16":
case "$numberushort":
case "$ushort":
return Convert.ToUInt16(vToken);
case "$bool":
case "$boolean":
return Convert.ToBoolean(vToken);
default:
return vToken;
}
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var jToken = JToken.ReadFrom(reader);
if (jToken is JArray jArray)
{
var arrayToken = new List<object>();
this.ReadObject(jArray, arrayToken, serializer);
return arrayToken;
}
else if (jToken is JObject jObject)
{
var objectToken = new Dictionary<string, object>();
this.ReadObject(jObject, objectToken, serializer);
if(objectToken.Count == 1 && objectToken.First().Key.ToLower() == "$type")
{
return Helpers.TransForm(objectToken.First().Value);
}
return objectToken;
}
else
throw new InvalidOperationException($"Must be either a JObect or JArray Json Token, not {reader.TokenType} ({reader.TokenType.GetType()})");
}
public override bool CanRead
{
get { return true; }
}
public override bool CanConvert(Type objectType)
{
return true;
}
static public IDictionary<string,object> ConvertToDictionary(JObject jObject)
{
var converter = new CDTConverter();
var newDict = new Dictionary<string,object>();
converter.ReadObject(jObject, newDict, null);
return newDict;
}
static public IDictionary<string, object> ConvertToDictionary(JProperty jProperty)
{
var converter = new CDTConverter();
var newDict = new Dictionary<string, object>();
converter.ReadObject(jProperty, newDict, null);
return newDict;
}
static public IList<object> ConvertToList(JArray jObject)
{
var converter = new CDTConverter();
var newList = new List<object>();
converter.ReadObject(jObject, newList, null);
return newList;
}
}
}