public static TabularJsonString Create(IReadOnlyDictionary <string, Type> fields, IEnumerable data)
{
var schema = new TabularDataSchema();
foreach (var entry in fields)
{
schema.Fields.Add(new TabularDataSchemaField(entry.Key, entry.Value.ToTableFieldType()));
}
var tabularDataSet = new TabularDataSet(schema, data);
return(tabularDataSet.ToJson());
}
private static (TabularDataSchema schema, JArray data) Generate(IEnumerable source)
{
var schema = new TabularDataSchema();
var fields = new HashSet <string>();
var members = new HashSet <(string name, Type type)>();
var data = new JArray();
foreach (var item in source)
{
switch (item)
{
case IEnumerable <(string name, object value)> valueTuples:
var tuples = valueTuples.ToArray();
EnsureFieldsAreInitializedFromValueTuples(tuples);
var o = new JObject();
foreach (var tuple in tuples)
{
o.Add(tuple.name, JToken.FromObject(tuple.value ?? "NULL"));
}
data.Add(o);
break;
case IEnumerable <KeyValuePair <string, object> > keyValuePairs:
var pairs = keyValuePairs.ToArray();
EnsureFieldsAreInitializedFromKeyValuePairs(pairs);
var obj = new JObject();
foreach (var pair in pairs)
{
obj.Add(pair.Key, JToken.FromObject(pair.Value));
}
data.Add(obj);
break;
default:
foreach (var memberInfo in item
.GetType()
.GetMembers(BindingFlags.Public | BindingFlags.Instance))
{
switch (memberInfo)
{
case PropertyInfo pi:
members.Add((memberInfo.Name, pi.PropertyType));
break;
case FieldInfo fi:
members.Add((memberInfo.Name, fi.FieldType));
break;
}
}
EnsureFieldsAreInitializedFromMembers();
data.Add(JObject.FromObject(item));
break;
}
}
return(schema, data);
void EnsureFieldsAreInitializedFromMembers()
{
foreach (var memberInfo in members)
{
if (fields.Add(memberInfo.name))
{
schema.Fields.Add(new TabularDataSchemaField(memberInfo.name, memberInfo.type.ToTableFieldType()));
}
}
}
void EnsureFieldsAreInitializedFromValueTuples(IEnumerable <(string name, object value)> valueTuples)
{
foreach (var(name, value) in valueTuples)
{
if (fields.Add(name))
{
schema.Fields.Add(new TabularDataSchemaField(name, value?.GetType().ToTableFieldType()));
}
}
}
void EnsureFieldsAreInitializedFromKeyValuePairs(IEnumerable <KeyValuePair <string, object> > keyValuePairs)
{
foreach (var keyValuePair in keyValuePairs)
{
if (fields.Add(keyValuePair.Key))
{
schema.Fields.Add(new TabularDataSchemaField(keyValuePair.Key, keyValuePair.Value?.GetType().ToTableFieldType()));
}
}
}
}
public TabularDataSet(TabularDataSchema schema, IEnumerable data)
{
Schema = schema;
Data = data;
}