Protocl buffer changed

package DataImporter_ns;

message Request

{

	//Request type descriptor

	enum Type

	{

		AUTHORIZATION = 0;

		VALIDATION = 1;

		TRANSFER = 2;

		KEEPALIVE = 3;

	}

	required Type type = 1;

	//Authorization request

	message Authorization

{

	required string username = 1;

	required string password = 2;

	}

	optional Authorization authorization = 2;

	//Validation request

	message Validation

	{

		required string schema = 1;

		required string table = 2;

	}

	optional Validation validation = 3;

	//Transfer request

	message Transfer 

	{

		required int32 file_version = 1;

		required string file_name = 2;

	}

	required string schema = 3;

	required string table = 4;

	optional Transfer transfer = 4;

	required int32 file_version = 5;

	required string file_name = 6;

}

package DataImporter_ns;

message Response

{

	//Response type descriptor

	enum Type

	{

		AUTHORIZATION = 0;

		VALIDATION = 1;

		TRANSFER = 2;

		KEEPALIVE = 3;

	}

	required Type type = 1;

	//Authorization response

	message Authorization

	{

		enum State

		{

			ACCEPTED = 0;

			REJECTED = 1;

		}

		required State state = 1;

		required string status = 2;

	}

	optional Authorization authorization = 2;

	//Validation response

	message Validation

	{

		enum State

		{

			ACCEPTED = 0;

			REJECTED = 1;

		}

		required State state = 1;

		required string status = 2;

	}

	optional Validation validation = 3;

	//Transfer response

	message Transfer 

{

	enum State

	{

	optional string file_name = 5;

	optional uint64 size = 6;

}

	optional Transfer transfer = 4;

}