int avro_schema_to_json(const avro_schema_t schema, avro_writer_t out)
{
check_param(EINVAL, is_avro_schema(schema), "schema");
check_param(EINVAL, out, "writer");
int rval;
if (is_avro_primitive(schema)) {
check(rval, avro_write_str(out, "{\"type\":\""));
}
switch (avro_typeof(schema)) {
case AVRO_STRING:
check(rval, avro_write_str(out, "string"));
break;
case AVRO_BYTES:
check(rval, avro_write_str(out, "bytes"));
break;
case AVRO_INT32:
check(rval, avro_write_str(out, "int"));
break;
case AVRO_INT64:
check(rval, avro_write_str(out, "long"));
break;
case AVRO_FLOAT:
check(rval, avro_write_str(out, "float"));
break;
case AVRO_DOUBLE:
check(rval, avro_write_str(out, "double"));
break;
case AVRO_BOOLEAN:
check(rval, avro_write_str(out, "boolean"));
break;
case AVRO_NULL:
check(rval, avro_write_str(out, "null"));
break;
case AVRO_RECORD:
return write_record(out, avro_schema_to_record(schema));
case AVRO_ENUM:
return write_enum(out, avro_schema_to_enum(schema));
case AVRO_FIXED:
return write_fixed(out, avro_schema_to_fixed(schema));
case AVRO_MAP:
return write_map(out, avro_schema_to_map(schema));
case AVRO_ARRAY:
return write_array(out, avro_schema_to_array(schema));
case AVRO_UNION:
return write_union(out, avro_schema_to_union(schema));
case AVRO_LINK:
return write_link(out, avro_schema_to_link(schema));
}
if (is_avro_primitive(schema)) {
return avro_write_str(out, "\"}");
}
avro_set_error("Unknown schema type");
return EINVAL;
}
static int write_datum(avro_writer_t writer, const avro_encoding_t * enc,
avro_schema_t writers_schema, avro_datum_t datum)
{
if (is_avro_schema(writers_schema) && is_avro_link(writers_schema)) {
return write_datum(writer, enc,
(avro_schema_to_link(writers_schema))->to,
datum);
}
switch (avro_typeof(datum)) {
case AVRO_NULL:
return enc->write_null(writer);
case AVRO_BOOLEAN:
return enc->write_boolean(writer,
avro_datum_to_boolean(datum)->i);
case AVRO_STRING:
return enc->write_string(writer,
avro_datum_to_string(datum)->s);
case AVRO_BYTES:
return enc->write_bytes(writer,
avro_datum_to_bytes(datum)->bytes,
avro_datum_to_bytes(datum)->size);
case AVRO_INT32:
case AVRO_INT64:{
int64_t val = avro_typeof(datum) == AVRO_INT32 ?
avro_datum_to_int32(datum)->i32 :
avro_datum_to_int64(datum)->i64;
if (is_avro_schema(writers_schema)) {
/* handle promotion */
if (is_avro_float(writers_schema)) {
return enc->write_float(writer,
(float)val);
} else if (is_avro_double(writers_schema)) {
return enc->write_double(writer,
(double)val);
}
}
return enc->write_long(writer, val);
}
case AVRO_FLOAT:{
float val = avro_datum_to_float(datum)->f;
if (is_avro_schema(writers_schema)
&& is_avro_double(writers_schema)) {
/* handle promotion */
return enc->write_double(writer, (double)val);
}
return enc->write_float(writer, val);
}
case AVRO_DOUBLE:
return enc->write_double(writer,
avro_datum_to_double(datum)->d);
case AVRO_RECORD:
return write_record(writer, enc,
avro_schema_to_record(writers_schema),
datum);
case AVRO_ENUM:
return write_enum(writer, enc,
avro_schema_to_enum(writers_schema),
avro_datum_to_enum(datum));
case AVRO_FIXED:
return avro_write(writer,
avro_datum_to_fixed(datum)->bytes,
avro_datum_to_fixed(datum)->size);
case AVRO_MAP:
return write_map(writer, enc,
avro_schema_to_map(writers_schema),
avro_datum_to_map(datum));
case AVRO_ARRAY:
return write_array(writer, enc,
avro_schema_to_array(writers_schema),
avro_datum_to_array(datum));
case AVRO_UNION:
return write_union(writer, enc,
avro_schema_to_union(writers_schema),
avro_datum_to_union(datum));
case AVRO_LINK:
break;
}
return 0;
}