private static StringBuilder Build(IDictionary <string, string> env, Schema s, StringBuilder o)
{
bool firstTime = true;
Schema.Type st = s.Tag;
switch (st)
{
case Schema.Type.Union:
UnionSchema us = s as UnionSchema;
o.Append('[');
foreach (Schema b in us.Schemas)
{
if (!firstTime)
{
o.Append(",");
}
else
{
firstTime = false;
}
Build(env, b, o);
}
return(o.Append(']'));
case Schema.Type.Array:
case Schema.Type.Map:
o.Append("{\"type\":\"").Append(Schema.GetTypeString(s.Tag)).Append("\"");
if (st == Schema.Type.Array)
{
ArraySchema arraySchema = s as ArraySchema;
Build(env, arraySchema.ItemSchema, o.Append(",\"items\":"));
}
else
{
MapSchema mapSchema = s as MapSchema;
Build(env, mapSchema.ValueSchema, o.Append(",\"values\":"));
}
return(o.Append("}"));
case Schema.Type.Enumeration:
case Schema.Type.Fixed:
case Schema.Type.Record:
NamedSchema namedSchema = s as NamedSchema;
var name = namedSchema.Fullname;
if (env.ContainsKey(name))
{
return(o.Append(env[name]));
}
var qname = "\"" + name + "\"";
env.Add(name, qname);
o.Append("{\"name\":").Append(qname);
o.Append(",\"type\":\"").Append(Schema.GetTypeString(s.Tag)).Append("\"");
if (st == Schema.Type.Enumeration)
{
EnumSchema enumSchema = s as EnumSchema;
o.Append(",\"symbols\":[");
foreach (var enumSymbol in enumSchema.Symbols)
{
if (!firstTime)
{
o.Append(",");
}
else
{
firstTime = false;
}
o.Append("\"").Append(enumSymbol).Append("\"");
}
o.Append("]");
}
else if (st == Schema.Type.Fixed)
{
FixedSchema fixedSchema = s as FixedSchema;
o.Append(",\"size\":").Append(fixedSchema.Size.ToString());
}
else // st == Schema.Type.Record
{
RecordSchema recordSchema = s as RecordSchema;
o.Append(",\"fields\":[");
foreach (var field in recordSchema.Fields)
{
if (!firstTime)
{
o.Append(",");
}
else
{
firstTime = false;
}
o.Append("{\"name\":\"").Append(field.Name).Append("\"");
Build(env, field.Schema, o.Append(",\"type\":")).Append("}");
}
o.Append("]");
}
return(o.Append("}"));
default: //boolean, bytes, double, float, int, long, null, string
return(o.Append("\"").Append(s.Name).Append("\""));
}
}
internal RecordSchemaPair(RecordSchema first, RecordSchema second)
{
this.first = first;
this.second = second;
}