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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 TDeserializer struct {
Transport *TMemoryBuffer
Protocol TProtocol
}
func NewTDeserializer() *TDeserializer {
transport := NewTMemoryBufferLen(1024)
protocol := NewTBinaryProtocolTransport(transport)
return &TDeserializer{
Transport: transport,
Protocol: protocol,
}
}
type reseter interface {
Reset()
}
func (t *TDeserializer) ReadString(ctx context.Context, msg TStruct, s string) (err error) {
t.Transport.Reset()
if r, ok := t.Protocol.(reseter); ok {
r.Reset()
}
err = nil
if _, err = t.Transport.Write([]byte(s)); err != nil {
return
}
if err = msg.Read(ctx, t.Protocol); err != nil {
return
}
return
}
func (t *TDeserializer) Read(ctx context.Context, msg TStruct, b []byte) (err error) {
t.Transport.Reset()
if r, ok := t.Protocol.(reseter); ok {
r.Reset()
}
err = nil
if _, err = t.Transport.Write(b); err != nil {
return
}
if err = msg.Read(ctx, t.Protocol); err != nil {
return
}
return
}
// TDeserializerPool is the thread-safe version of TDeserializer,
// it uses resource pool of TDeserializer under the hood.
//
// It must be initialized with either NewTDeserializerPool or
// NewTDeserializerPoolSizeFactory.
type TDeserializerPool struct {
pool *pool[TDeserializer]
}
// NewTDeserializerPool creates a new TDeserializerPool.
//
// NewTDeserializer can be used as the arg here.
func NewTDeserializerPool(f func() *TDeserializer) *TDeserializerPool {
return &TDeserializerPool{
pool: newPool(f, nil),
}
}
// NewTDeserializerPoolSizeFactory creates a new TDeserializerPool with
// the given size and protocol factory.
//
// Note that the size is not the limit. The TMemoryBuffer underneath can grow
// larger than that. It just dictates the initial size.
func NewTDeserializerPoolSizeFactory(size int, factory TProtocolFactory) *TDeserializerPool {
return &TDeserializerPool{
pool: newPool(func() *TDeserializer {
transport := NewTMemoryBufferLen(size)
protocol := factory.GetProtocol(transport)
return &TDeserializer{
Transport: transport,
Protocol: protocol,
}
}, nil),
}
}
func (t *TDeserializerPool) ReadString(ctx context.Context, msg TStruct, s string) error {
d := t.pool.get()
defer t.pool.put(&d)
return d.ReadString(ctx, msg, s)
}
func (t *TDeserializerPool) Read(ctx context.Context, msg TStruct, b []byte) error {
d := t.pool.get()
defer t.pool.put(&d)
return d.Read(ctx, msg, b)
}
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