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trans_handler.go
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trans_handler.go
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/*
* Copyright 2021 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package remote
import (
"context"
"net"
"github.com/cloudwego/kitex/pkg/endpoint"
)
// ClientTransHandlerFactory to new TransHandler for client
type ClientTransHandlerFactory interface {
NewTransHandler(opt *ClientOption) (ClientTransHandler, error)
}
// ServerTransHandlerFactory to new TransHandler for server
type ServerTransHandlerFactory interface {
NewTransHandler(opt *ServerOption) (ServerTransHandler, error)
}
// TransReadWriter .
type TransReadWriter interface {
Write(ctx context.Context, conn net.Conn, send Message) (nctx context.Context, err error)
Read(ctx context.Context, conn net.Conn, msg Message) (nctx context.Context, err error)
}
// TransHandler is similar to the handler role in netty
// Transport can be refactored to support pipeline, and then is able to support other extensions at conn level.
type TransHandler interface {
TransReadWriter
OnInactive(ctx context.Context, conn net.Conn)
OnError(ctx context.Context, err error, conn net.Conn)
OnMessage(ctx context.Context, args, result Message) (context.Context, error)
SetPipeline(pipeline *TransPipeline)
}
// ClientTransHandler is just TransHandler.
type ClientTransHandler interface {
TransHandler
}
// ServerTransHandler have some new functions.
type ServerTransHandler interface {
TransHandler
OnActive(ctx context.Context, conn net.Conn) (context.Context, error)
OnRead(ctx context.Context, conn net.Conn) error
}
// InvokeHandleFuncSetter is used to set invoke handle func.
type InvokeHandleFuncSetter interface {
SetInvokeHandleFunc(inkHdlFunc endpoint.Endpoint)
}
// GracefulShutdown supports closing connections in a graceful manner.
type GracefulShutdown interface {
GracefulShutdown(ctx context.Context) error
}