| /* |
| * 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" |
| "sync" |
| ) |
| |
| type TDeserializer struct { |
| Transport *TMemoryBuffer |
| Protocol TProtocol |
| } |
| |
| func NewTDeserializer() *TDeserializer { |
| transport := NewTMemoryBufferLen(1024) |
| protocol := NewTBinaryProtocolTransport(transport) |
| |
| return &TDeserializer{ |
| Transport: transport, |
| Protocol: protocol, |
| } |
| } |
| |
| func (t *TDeserializer) ReadString(ctx context.Context, msg TStruct, s string) (err error) { |
| t.Transport.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() |
| |
| 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 sync.Pool |
| } |
| |
| // NewTDeserializerPool creates a new TDeserializerPool. |
| // |
| // NewTDeserializer can be used as the arg here. |
| func NewTDeserializerPool(f func() *TDeserializer) *TDeserializerPool { |
| return &TDeserializerPool{ |
| pool: sync.Pool{ |
| New: func() interface{} { |
| return f() |
| }, |
| }, |
| } |
| } |
| |
| // 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: sync.Pool{ |
| New: func() interface{} { |
| transport := NewTMemoryBufferLen(size) |
| protocol := factory.GetProtocol(transport) |
| |
| return &TDeserializer{ |
| Transport: transport, |
| Protocol: protocol, |
| } |
| }, |
| }, |
| } |
| } |
| |
| func (t *TDeserializerPool) ReadString(ctx context.Context, msg TStruct, s string) error { |
| d := t.pool.Get().(*TDeserializer) |
| 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().(*TDeserializer) |
| defer t.pool.Put(d) |
| return d.Read(ctx, msg, b) |
| } |