public static SqlMap <string, string> ExtractBody(String json)
{
JToken root = null;
try
{
root = string.IsNullOrEmpty(json) ? new JObject() : JToken.Parse(json);
}
catch (Newtonsoft.Json.JsonReaderException e)
{
Console.WriteLine("Error while reading json string");
return(SqlMap.Create(EMPTYRESULT));
}
var o = root as JObject;
IEnumerable <JToken> tokens;
if (o != null)
{
tokens = o.PropertyValues();
}
else
{
tokens = root.Children();
}
return(SqlMap.Create(TransformTokens(tokens)));
}
public static SqlMap <string, T> JsonTuple <T>(string json, params string[] paths)
{
// Parse (once)
// Note: Json.Net NullRefs on <null> input Json
// Given <null> is a common column/string value, map to empty set for composability
var root = string.IsNullOrEmpty(json) ? new JObject() : JToken.Parse(json);
// Apply paths
if (paths != null && paths.Length > 0)
{
return(SqlMap.Create(paths.SelectMany(path => ApplyPath <T>(root, path))));
}
// Children
return(SqlMap.Create(ApplyPath <T>(root, null)));
}
private void ExtractJson(string json, IUpdatableRow output)
{
//var jsonReader = new JsonTextReader(new StringReader(tokens[0]));
var jsonReader = new JsonTextReader(new StringReader(json));
while (jsonReader.Read())
{
if (jsonReader.TokenType == JsonToken.StartObject)
{
var token = JToken.Load(jsonReader);
// Rows
// All objects are represented as rows
foreach (JObject o in token.SelectTokens("data[*]"))
{
//Console.WriteLine($"JObject: {o}");
// All fields are represented as columns
//this.JObjectToRow(o, output);
//mapToColumns(o, output);
//yield return output.AsReadOnly();
//var tokens = o.SelectTokens("$.data.author");
var sqlMap = SqlMap.Create(MapHelper <string>(o, "$.data.author"));
if (sqlMap != null && sqlMap.Count > 0)
{
Console.WriteLine("SqlMap exists");
var tempMap = output.Get <SqlMap <string, string> >("contexts.data.author");
if (tempMap != null && tempMap.Count > 0)
{
Console.WriteLine("tempMAp exists");
var combinedDict = new Dictionary <string, string>();
tempMap.Keys.ToList().ForEach(key => combinedDict.Add(key, tempMap[key]));
sqlMap.Keys.ToList().ForEach(key => combinedDict.Add(key, sqlMap[key]));
output.Set("contexts.data.author", new SqlMap <string, string>(combinedDict));
}
else
{
output.Set("contexts.data.author", sqlMap);
}
}
}
}
}
}
/// <summary/>
public static SqlMap <string, T> JsonTuple <T>(string json, params string[] paths)
{
// Parse (once)
// Note: Json.Net NullRefs on <null> input Json
// Given <null> is a common column/string value, map to empty set for composability
var root = string.IsNullOrEmpty(json) ? new JObject() : JToken.Parse(json);
//Console.WriteLine($"Root: {root}");
//Console.WriteLine($"Path length: {paths.Length}, path: {paths[0]}");
// Apply paths
if (paths != null && paths.Length > 0)
{
var schemaMap = SqlMap.Create(paths.SelectMany(path => ApplyPath <T>(root, path)));
// Console.WriteLine($"Schema Map Count: {schemaMap.Count}");
return(schemaMap);
}
// Children
return(SqlMap.Create(ApplyPath <T>(root, null)));
}
