/// <summary>
/// Constructor for named schema class
/// </summary>
/// <param name="type">schema type</param>
/// <param name="name">name</param>
/// <param name="names">list of named schemas already read</param>
protected NamedSchema(Type type, SchemaName name, IList<SchemaName> aliases, PropertyMap props, SchemaNames names)
: base(type, props)
{
this.SchemaName = name;
this.aliases = aliases;
if (null != name.Name) // Added this check for anonymous records inside Message
if (!names.Add(name, this))
throw new AvroException("Duplicate schema name " + name.Fullname);
}
/// <summary>
/// Constructor for named schema class
/// </summary>
/// <param name="type">schema type</param>
/// <param name="name">name</param>
/// <param name="names">list of named schemas already read</param>
protected NamedSchema(Type type, SchemaName name, IList <SchemaName> aliases, PropertyMap props, SchemaNames names)
: base(type, props)
{
this.SchemaName = name;
this.aliases = aliases;
if (null != name.Name) // Added this check for anonymous records inside Message
{
if (!names.Add(name, this))
{
throw new AvroException("Duplicate schema name " + name.Fullname);
}
}
}
private static void GenSchema(IEnumerable <string> infile, string outdir)
{
try
{
var codeGen = new CodeGen();
var schemaName = new SchemaNames();
foreach (var str in infile)
{
var schema = Schema.Parse(System.IO.File.ReadAllText(str), schemaName);
schemaName.Add(schema as NamedSchema);
codeGen.AddSchema(schema);
}
codeGen.GenerateCode();
codeGen.WriteTypes(outdir);
}
catch (Exception exception)
{
//Console.WriteLine(string.Concat("Exception occurred. ", exception.Message));
throw new Exception(string.Concat("Exception occurred. ", exception.Message));
}
}
/// <summary>
/// Writes named schema in JSON format
/// </summary>
/// <param name="writer">JSON writer</param>
/// <param name="names">list of named schemas already written</param>
/// <param name="encspace">enclosing namespace of the named schema</param>
protected internal override void WriteJson(Newtonsoft.Json.JsonTextWriter writer, SchemaNames names, string encspace)
{
if (!names.Add(this))
{
// schema is already in the list, write name only
SchemaName schemaName = this.SchemaName;
string name;
if (schemaName.Namespace != encspace)
{
name = schemaName.Namespace + "." + schemaName.Name; // we need to add the qualifying namespace of the target schema if it's not the same as current namespace
}
else
{
name = schemaName.Name;
}
writer.WriteValue(name);
}
else
{
// schema is not in the list, write full schema definition
base.WriteJson(writer, names, encspace);
}
}
/// <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);
}
}
/// <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>
/// <exception cref="CodeGenException">Unable to add name for " + schema.Name + " type " + schema.Tag.</exception>
protected virtual void addName(Schema schema, SchemaNames names)
{
NamedSchema ns = schema as NamedSchema;
if (ns != null && 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:
case Schema.Type.Logical:
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);
}
}
/// <summary>
/// Writes named schema in JSON format
/// </summary>
/// <param name="writer">JSON writer</param>
/// <param name="names">list of named schemas already written</param>
/// <param name="encspace">enclosing namespace of the named schema</param>
protected internal override void WriteJson(Newtonsoft.Json.JsonTextWriter writer, SchemaNames names, string encspace)
{
if (!names.Add(this))
{
// schema is already in the list, write name only
SchemaName schemaName = this.SchemaName;
string name;
if (schemaName.Namespace != encspace)
name = schemaName.Namespace + "." + schemaName.Name; // we need to add the qualifying namespace of the target schema if it's not the same as current namespace
else
name = schemaName.Name;
writer.WriteValue(name);
}
else
// schema is not in the list, write full schema definition
base.WriteJson(writer, names, encspace);
}
