/**
*
* @param AvroSchema $writers_schema
* @param AvroSchema $readers_schema
* @return boolean true if the schemas are consistent with
* each other and false otherwise.
*/
static function schemas_match($writers_schema, $readers_schema)
{
$writers_schema_type = $writers_schema->type;
$readers_schema_type = $readers_schema->type;
if (AvroSchema::UNION_SCHEMA == $writers_schema_type || AvroSchema::UNION_SCHEMA == $readers_schema_type) {
return true;
}
if ($writers_schema_type == $readers_schema_type) {
if (AvroSchema::is_primitive_type($writers_schema_type)) {
return true;
}
switch ($readers_schema_type) {
case AvroSchema::MAP_SCHEMA:
return self::attributes_match($writers_schema->values(), $readers_schema->values(), array(AvroSchema::TYPE_ATTR));
case AvroSchema::ARRAY_SCHEMA:
return self::attributes_match($writers_schema->items(), $readers_schema->items(), array(AvroSchema::TYPE_ATTR));
case AvroSchema::ENUM_SCHEMA:
return self::attributes_match($writers_schema, $readers_schema, array(AvroSchema::FULLNAME_ATTR));
case AvroSchema::FIXED_SCHEMA:
return self::attributes_match($writers_schema, $readers_schema, array(AvroSchema::FULLNAME_ATTR, AvroSchema::SIZE_ATTR));
case AvroSchema::RECORD_SCHEMA:
case AvroSchema::ERROR_SCHEMA:
return self::attributes_match($writers_schema, $readers_schema, array(AvroSchema::FULLNAME_ATTR));
case AvroSchema::REQUEST_SCHEMA:
// XXX: This seems wrong
return true;
// XXX: no default
}
if (AvroSchema::INT_TYPE == $writers_schema_type && in_array($readers_schema_type, array(AvroSchema::LONG_TYPE, AvroSchema::FLOAT_TYPE, AvroSchema::DOUBLE_TYPE))) {
return true;
}
if (AvroSchema::LONG_TYPE == $writers_schema_type && in_array($readers_schema_type, array(AvroSchema::FLOAT_TYPE, AvroSchema::DOUBLE_TYPE))) {
return true;
}
if (AvroSchema::FLOAT_TYPE == $writers_schema_type && AvroSchema::DOUBLE_TYPE == $readers_schema_type) {
return true;
}
return false;
}
}
