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rocket_upgrade_protocol.go
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/
rocket_upgrade_protocol.go
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/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* 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 thrift
import (
"context"
)
type upgradeToRocketProtocol struct {
Protocol
rocketProtocol Protocol
headerProtocol Protocol
}
// NewUpgradeToRocketProtocol creates a protocol that upgrades from Header to Rocket protocol from a transport.
func NewUpgradeToRocketProtocol(trans Transport) Protocol {
return &upgradeToRocketProtocol{
rocketProtocol: NewRocketProtocol(trans),
headerProtocol: NewHeaderProtocol(trans),
}
}
// NewUpgradeToRocketProtocol creates a protocol that upgrades from Header to Rocket protocol given both protocols.
func NewUpgradeToRocketProtocols(rocketProtocol, headerProtocol Protocol) Protocol {
return &upgradeToRocketProtocol{
rocketProtocol: rocketProtocol,
headerProtocol: headerProtocol,
}
}
// WriteMessageBegin first sends a upgradeToRocket message using the HeaderProtocol.
// If this succeeds, we switch to the RocketProtocol and write the message using it.
// If this fails, we send the original message using the HeaderProtocol and continue using the HeaderProtocol.
func (p *upgradeToRocketProtocol) WriteMessageBegin(name string, typeID MessageType, seqid int32) error {
if p.Protocol == nil {
if err := p.upgradeToRocket(); err != nil {
p.Protocol = p.headerProtocol
} else {
p.Protocol = p.rocketProtocol
}
}
return p.Protocol.WriteMessageBegin(name, typeID, seqid)
}
func (p *upgradeToRocketProtocol) upgradeToRocket() error {
return upgradeToRocket(context.Background(), p.headerProtocol)
}
func (p *upgradeToRocketProtocol) SetPersistentHeader(key, value string) {
if p.Protocol == nil {
p.rocketProtocol.SetPersistentHeader(key, value)
p.headerProtocol.SetPersistentHeader(key, value)
return
}
p.Protocol.SetPersistentHeader(key, value)
}
func (p *upgradeToRocketProtocol) GetPersistentHeader(key string) (string, bool) {
v, ok := p.GetPersistentHeaders()[key]
return v, ok
}
func (p *upgradeToRocketProtocol) GetPersistentHeaders() map[string]string {
if p.Protocol == nil {
headers := p.headerProtocol.GetPersistentHeaders()
rocketHeaders := p.rocketProtocol.GetPersistentHeaders()
for k, v := range rocketHeaders {
headers[k] = v
}
return headers
}
return p.Protocol.GetPersistentHeaders()
}
func (p *upgradeToRocketProtocol) ClearPersistentHeaders() {
if p.Protocol == nil {
p.rocketProtocol.ClearPersistentHeaders()
p.headerProtocol.ClearPersistentHeaders()
return
}
p.Protocol.ClearPersistentHeaders()
}
func (p *upgradeToRocketProtocol) SetRequestHeader(key, value string) {
if p.Protocol == nil {
p.rocketProtocol.(RequestHeaders).SetRequestHeader(key, value)
p.headerProtocol.(RequestHeaders).SetRequestHeader(key, value)
return
}
p.Protocol.(RequestHeaders).SetRequestHeader(key, value)
}
func (p *upgradeToRocketProtocol) GetRequestHeader(key string) (value string, ok bool) {
v, ok := p.GetRequestHeaders()[key]
return v, ok
}
func (p *upgradeToRocketProtocol) GetRequestHeaders() map[string]string {
if p.Protocol == nil {
headers := p.headerProtocol.(RequestHeaders).GetRequestHeaders()
rocketHeaders := p.rocketProtocol.(RequestHeaders).GetRequestHeaders()
for k, v := range rocketHeaders {
headers[k] = v
}
return headers
}
return p.Protocol.(RequestHeaders).GetRequestHeaders()
}
func (p *upgradeToRocketProtocol) GetResponseHeader(key string) (string, bool) {
v, ok := p.GetResponseHeaders()[key]
return v, ok
}
func (p *upgradeToRocketProtocol) GetResponseHeaders() map[string]string {
if p.Protocol == nil {
headers := p.headerProtocol.GetResponseHeaders()
rocketHeaders := p.rocketProtocol.GetResponseHeaders()
for k, v := range rocketHeaders {
headers[k] = v
}
return headers
}
return p.Protocol.GetResponseHeaders()
}