private void GenerateSchemas(IEnumerable <Record> results, string outDir)
{
var codegen = new Avro.CodeGen();
var schemaNames = new SchemaNames();
foreach (var result in results)
{
Console.WriteLine("Start processing : {0}", result.Fullname);
var scheme = Schema.Parse(result.Schema, schemaNames);
schemaNames.Add((NamedSchema)scheme);
codegen.AddSchema(scheme);
Console.WriteLine("Generate : {0}", result.Fullname);
}
codegen.GenerateCode();
codegen.WriteTypes(outDir);
Console.WriteLine("Completed.");
}
/// <summary>
/// Recursively search the given schema for named schemas and adds them to the given container
/// </summary>
/// <param name="schema">schema object to search</param>
/// <param name="names">list of named schemas</param>
protected virtual void addName(Schema schema, SchemaNames names)
{
NamedSchema ns = schema as NamedSchema;
if (null != ns)
{
if (names.Contains(ns.SchemaName))
{
return;
}
}
switch (schema.Tag)
{
case Schema.Type.Null:
case Schema.Type.Boolean:
case Schema.Type.Int:
case Schema.Type.Long:
case Schema.Type.Float:
case Schema.Type.Double:
case Schema.Type.Bytes:
case Schema.Type.String:
break;
case Schema.Type.Enumeration:
case Schema.Type.Fixed:
names.Add(ns);
break;
case Schema.Type.Record:
case Schema.Type.Error:
var rs = schema as RecordSchema;
names.Add(rs);
foreach (Field field in rs.Fields)
{
addName(field.Schema, names);
}
break;
case Schema.Type.Array:
var asc = schema as ArraySchema;
addName(asc.ItemSchema, names);
break;
case Schema.Type.Map:
var ms = schema as MapSchema;
addName(ms.ValueSchema, names);
break;
case Schema.Type.Union:
var us = schema as UnionSchema;
foreach (Schema usc in us.Schemas)
{
addName(usc, names);
}
break;
default:
throw new CodeGenException("Unable to add name for " + schema.Name + " type " + schema.Tag);
}
}