private IElasticCoreType GetTypeFromJObject(JObject po, JsonSerializer serializer)
{
JToken typeToken;
serializer.TypeNameHandling = TypeNameHandling.None;
if (po.TryGetValue("type", out typeToken))
{
var type = typeToken.Value<string>().ToLowerInvariant();
switch (type)
{
case "string":
return serializer.Deserialize(po.CreateReader(), typeof(StringMapping)) as StringMapping;
case "float":
case "double":
case "byte":
case "short":
case "integer":
case "long":
return serializer.Deserialize(po.CreateReader(), typeof(NumberMapping)) as NumberMapping;
case "date":
return serializer.Deserialize(po.CreateReader(), typeof(DateMapping)) as DateMapping;
case "boolean":
return serializer.Deserialize(po.CreateReader(), typeof(BooleanMapping)) as BooleanMapping;
case "binary":
return serializer.Deserialize(po.CreateReader(), typeof(BinaryMapping)) as BinaryMapping;
}
}
return null;
}
public static EncryptedValuesReader FromObject(JObject encryptedValues)
{
var reader = encryptedValues.CreateReader();
reader.Read();
Debug.Assert(reader.TokenType == JsonToken.StartObject);
reader.Read();
return new EncryptedValuesReader(reader);
}
JsonReader Rankings()
{
// object with a property "Rank" where the value of every property is an array of ids in decending order by download
// e.g. {"Rank":["package-a","package-b","package-c"]}
var ranking = new JObject
{
"Rank", new JArray(),
};
return ranking.CreateReader();
}
//This json converter is used to map the actual names that are given in the CopernicaField attributes.
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
//TODO: Cleanup!
// Load JObject from stream and get the data object, it's where the actual information is.
JObject jObject = JObject.Load(reader);
var data = jObject["data"];
//If data is empty the REST api returned nothing
if(data.FirstOrDefault() == null)
throw new CopernicaException("Data is empty");
//This part is needed when retrieving the fields in order to validate the given object.
if (objectType.Name == "CopernicaField")
{
//Create a list of CopernicaField to return
return data.Select(item => new CopernicaField(item["name"].ToString())
{
//All we need to know is the Name, Length and Type to validate.
Length = item["length"] == null ? 0 : (int)item["length"],
Type = (string) item["type"]
}).ToList();
}
//Parse the data until only the object is left.
dynamic a = JObject.Parse(data.First.ToString());
dynamic b = JObject.Parse(a["fields"].ToString());
var obj = (Object)Activator.CreateInstance(objectType);
var jobject = new JObject(b);
//Get all the properties and loop trough them. Then add all the properties with the correct names from je object.
//This makes sure the mapping is right when deserializing the object.
var properties = objectType.GetProperties().Where(x => x.GetCustomAttributes(false).Any(y => y.GetType() == typeof(CopernicaField) || y.GetType() == typeof(CopernicaKeyField)));
var jobj = new JObject();
foreach (var property in properties)
{
jobj.Add(property.Name, jobject[property.GetCustomAttribute<CopernicaField>().Name]);
}
//Populate the correct data in the object.
JsonReader objreader = jobj.CreateReader();
serializer.Populate(objreader, obj);
return obj;
}
public void Example()
{
#region Usage
JObject o = new JObject
{
{ "Cpu", "Intel" },
{ "Memory", 32 },
{
"Drives", new JArray
{
"DVD",
"SSD"
}
}
};
JsonReader reader = o.CreateReader();
while (reader.Read())
{
Console.Write(reader.TokenType);
if (reader.Value != null)
{
Console.Write(" - " + reader.Value);
}
Console.WriteLine();
}
// StartObject
// PropertyName - Cpu
// String - Intel
// PropertyName - Memory
// Integer - 32
// PropertyName - Drives
// StartArray
// String - DVD
// String - SSD
// EndArray
// EndObject
#endregion
Assert.IsFalse(reader.Read());
}
private IElasticType GetTypeFromJObject(JObject po, JsonSerializer serializer)
{
JToken typeToken;
serializer.TypeNameHandling = TypeNameHandling.None;
if (po.TryGetValue("type", out typeToken))
{
var type = typeToken.Value<string>().ToLowerInvariant();
switch (type)
{
case "string":
return serializer.Deserialize(po.CreateReader(), typeof(StringMapping)) as StringMapping;
case "float":
case "double":
case "byte":
case "short":
case "integer":
case "long":
return serializer.Deserialize(po.CreateReader(), typeof(NumberMapping)) as NumberMapping;
case "date":
return serializer.Deserialize(po.CreateReader(), typeof(DateMapping)) as DateMapping;
case "boolean":
return serializer.Deserialize(po.CreateReader(), typeof(BooleanMapping)) as BooleanMapping;
case "binary":
return serializer.Deserialize(po.CreateReader(), typeof(BinaryMapping)) as BinaryMapping;
case "object":
return serializer.Deserialize(po.CreateReader(), typeof(ObjectMapping)) as ObjectMapping;
case "nested":
return serializer.Deserialize(po.CreateReader(), typeof(NestedObjectMapping)) as NestedObjectMapping;
case "multi_field":
return serializer.Deserialize(po.CreateReader(), typeof(MultiFieldMapping)) as MultiFieldMapping;
case "ip":
return serializer.Deserialize(po.CreateReader(), typeof(IPMapping)) as IPMapping;
case "geo_point":
return serializer.Deserialize(po.CreateReader(), typeof(GeoPointMapping)) as GeoPointMapping;
case "geo_shape":
return serializer.Deserialize(po.CreateReader(), typeof(GeoShapeMapping)) as GeoShapeMapping;
case "attachment":
return serializer.Deserialize(po.CreateReader(), typeof(AttachmentMapping)) as AttachmentMapping;
}
}
return null;
}
private static JsonReader CopyReaderForObject(JsonReader reader, JObject jObject)
{
var jObjectReader = jObject.CreateReader();
jObjectReader.Culture = reader.Culture;
jObjectReader.DateFormatString = reader.DateFormatString;
jObjectReader.DateParseHandling = reader.DateParseHandling;
jObjectReader.DateTimeZoneHandling = reader.DateTimeZoneHandling;
jObjectReader.FloatParseHandling = reader.FloatParseHandling;
jObjectReader.MaxDepth = reader.MaxDepth;
jObjectReader.SupportMultipleContent = reader.SupportMultipleContent;
return jObjectReader;
}
public void WriteEmptyToken()
{
JObject o = new JObject();
JsonReader reader = o.CreateReader();
while (reader.Read())
{
}
JTokenWriter writer = new JTokenWriter();
writer.WriteStartArray();
writer.WriteToken(reader);
Assert.AreEqual(WriteState.Array, writer.WriteState);
writer.WriteEndArray();
StringAssert.AreEqual(@"[]", writer.Token.ToString());
}
public void WriteTokenWithParent()
{
JObject o = new JObject
{
["prop1"] = new JArray(1),
["prop2"] = 1
};
JTokenWriter writer = new JTokenWriter();
writer.WriteStartArray();
writer.WriteToken(o.CreateReader());
Assert.AreEqual(WriteState.Array, writer.WriteState);
writer.WriteEndArray();
Console.WriteLine(writer.Token.ToString());
StringAssert.AreEqual(@"[
{
""prop1"": [
1
],
""prop2"": 1
}
]", writer.Token.ToString());
}
private IDecayFunction ReadDecayFunction(string type, JObject o, JsonSerializer serializer)
{
var origin = o.Property("origin")?.Value.Type;
if (origin == null) return null;
var subType = "numeric";
switch (origin)
{
case JTokenType.String:
subType = "date";
break;
case JTokenType.Object:
subType = "geo";
break;
}
var t = DecayTypeMapping[$"{type}_{subType}"];
return FromJson.Read(o.CreateReader(), t, null, serializer) as IDecayFunction;
}
private IElasticType GetTypeFromJObject(JObject po, JsonSerializer serializer)
{
JToken typeToken;
JToken propertiesToken;
JToken fieldsToken;
var type = string.Empty;
var hasType = po.TryGetValue("type", out typeToken);
if (hasType)
type = typeToken.Value<string>().ToLowerInvariant();
else if (po.TryGetValue("properties", out propertiesToken))
type = "object";
var originalType = type;
var hasFields = po.TryGetValue("fields", out fieldsToken);
if (hasFields)
type = "multi_field";
serializer.TypeNameHandling = TypeNameHandling.None;
switch (type)
{
case "string":
return serializer.Deserialize(po.CreateReader(), typeof(StringMapping)) as StringMapping;
case "float":
case "double":
case "byte":
case "short":
case "integer":
case "long":
return serializer.Deserialize(po.CreateReader(), typeof(NumberMapping)) as NumberMapping;
case "date":
return serializer.Deserialize(po.CreateReader(), typeof(DateMapping)) as DateMapping;
case "boolean":
return serializer.Deserialize(po.CreateReader(), typeof(BooleanMapping)) as BooleanMapping;
case "binary":
return serializer.Deserialize(po.CreateReader(), typeof(BinaryMapping)) as BinaryMapping;
case "object":
return serializer.Deserialize(po.CreateReader(), typeof(ObjectMapping)) as ObjectMapping;
case "nested":
return serializer.Deserialize(po.CreateReader(), typeof(NestedObjectMapping)) as NestedObjectMapping;
case "multi_field":
var m =serializer.Deserialize(po.CreateReader(), typeof(MultiFieldMapping)) as MultiFieldMapping;
m.Type = originalType;
return m;
case "ip":
return serializer.Deserialize(po.CreateReader(), typeof(IPMapping)) as IPMapping;
case "geo_point":
return serializer.Deserialize(po.CreateReader(), typeof(GeoPointMapping)) as GeoPointMapping;
case "geo_shape":
return serializer.Deserialize(po.CreateReader(), typeof(GeoShapeMapping)) as GeoShapeMapping;
case "attachment":
return serializer.Deserialize(po.CreateReader(), typeof(AttachmentMapping)) as AttachmentMapping;
}
return null;
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var currentResourceInstance = (IResource)Activator.CreateInstance(objectType);
var jToken = JToken.ReadFrom(reader);
if (jToken[ReservedPropertyNames.Relations] != null)
{
currentResourceInstance.Relations = serializer.Deserialize<Relations>(jToken[ReservedPropertyNames.Relations].CreateReader());
}
var simpleProperties =
jToken.Where(_ => _.GetType() == typeof (JProperty))
.Cast<JProperty>()
.Where(_ => !ReservedPropertyNames.Names.Contains(_.Name));
// Create a new JObject that will receive all "simple" non-reserved properties.
// This will be the vehicle to populate the resource instance.
var populater = new JObject();
foreach (JProperty jProperty in simpleProperties)
{
populater.Add(jProperty);
}
serializer.Populate(populater.CreateReader(), currentResourceInstance);
if (jToken[ReservedPropertyNames.EmbeddedResources] != null)
{
JToken embeddedResourceObject = jToken[ReservedPropertyNames.EmbeddedResources];
foreach (var embeddedObjectProperty in embeddedResourceObject.Where(_ => _.GetType() == typeof(JProperty)).Cast<JProperty>())
{
if (embeddedObjectProperty.Value.GetType() == typeof (JArray))
{
if (objectType.Name.ToLower().Contains(embeddedObjectProperty.Name))
{
var dynamicCurrent = (dynamic)currentResourceInstance;
var itemsProperty = objectType.GetProperty("Items");
var collectionResourceType = itemsProperty.PropertyType.GetGenericArguments().First();
// Recursion
foreach (var arrayElem in ((JArray) embeddedObjectProperty.Value))
{
var resourceElem =
(IResource)
serializer.Deserialize(arrayElem.CreateReader(), collectionResourceType);
dynamicCurrent.AddItem(resourceElem);
}
}
}
else
{
var assignableProperty = objectType.GetProperties()
.Where(_ => typeof (IResource).IsAssignableFrom(_.PropertyType))
.FirstOrDefault(_ => _.PropertyType.Name.ToLower().Contains(embeddedObjectProperty.Name));
if (assignableProperty != null)
{
// Recursion
var resourceElem = serializer.Deserialize(embeddedObjectProperty.Value.CreateReader(),
assignableProperty.PropertyType);
assignableProperty.SetValue(currentResourceInstance, resourceElem);
}
}
}
}
return currentResourceInstance;
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var depth = reader.Depth;
string[] columns = null;
var contract = (JsonArrayContract)serializer.ContractResolver.ResolveContract(objectType);
object ret = existingValue;
while (reader.Read() && reader.TokenType != JsonToken.EndObject && reader.Depth > depth)
{
while (reader.TokenType == JsonToken.PropertyName)
{
var prop = (string)reader.Value;
if (prop == "columns")
{
reader.Read();
columns = serializer.Deserialize<string[]>(reader);
}
else if (prop == "data")
{
if (columns == null || columns.Length == 0)
{
reader.Skip();
}
else
{
//Deserialize the data part
if (existingValue == null)
{
if (contract.DefaultCreator != null)
{
ret = contract.DefaultCreator();
}
else
{
ret = Activator.CreateInstance(objectType);
}
}
var collectionItemType = contract.CollectionItemType;
var lst = (IList) ret;
if (!(reader.Read() && reader.TokenType == JsonToken.StartArray))
{
throw new Exception("Expected to read an array");
}
int arrayDepth = reader.Depth;
while (reader.Read() && (reader.TokenType != JsonToken.EndArray && reader.Depth >= arrayDepth))
{
//This is a row
var item = new JObject();
if (reader.TokenType != JsonToken.StartArray)
throw new Exception("Expected to read an array but found " + reader.TokenType.ToString());
int index = 0;
int arrayDepth2 = reader.Depth;
while (reader.Read() &&
(reader.TokenType != JsonToken.EndArray && reader.Depth >= arrayDepth2))
{
item[columns[index]] = JToken.ReadFrom(reader);
index++;
}
using (var subReader = item.CreateReader())
{
lst.Add(serializer.Deserialize(subReader, collectionItemType));
}
}
if (reader.Depth > arrayDepth)
throw new JsonReaderException("Unexpected end of content while reading array.");
}
}
else
{
reader.Skip();
}
}
}
return ret;
}
private static void InitObject(JsonSerializer serializer, object target, string href, JObject item)
{
var crestObject = (ICrestObject) target;
crestObject.Href = href;
serializer.Populate(item.CreateReader(), target);
Task.Run(() => Crest.Settings.Cache.Put(crestObject));
}
