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Diffstat (limited to '')
-rw-r--r-- | src/jaegertracing/thrift/lib/go/thrift/binary_protocol.go | 505 |
1 files changed, 505 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/go/thrift/binary_protocol.go b/src/jaegertracing/thrift/lib/go/thrift/binary_protocol.go new file mode 100644 index 000000000..93ae898cf --- /dev/null +++ b/src/jaegertracing/thrift/lib/go/thrift/binary_protocol.go @@ -0,0 +1,505 @@ +/* + * 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 ( + "bytes" + "context" + "encoding/binary" + "errors" + "fmt" + "io" + "math" +) + +type TBinaryProtocol struct { + trans TRichTransport + origTransport TTransport + strictRead bool + strictWrite bool + buffer [64]byte +} + +type TBinaryProtocolFactory struct { + strictRead bool + strictWrite bool +} + +func NewTBinaryProtocolTransport(t TTransport) *TBinaryProtocol { + return NewTBinaryProtocol(t, false, true) +} + +func NewTBinaryProtocol(t TTransport, strictRead, strictWrite bool) *TBinaryProtocol { + p := &TBinaryProtocol{origTransport: t, strictRead: strictRead, strictWrite: strictWrite} + if et, ok := t.(TRichTransport); ok { + p.trans = et + } else { + p.trans = NewTRichTransport(t) + } + return p +} + +func NewTBinaryProtocolFactoryDefault() *TBinaryProtocolFactory { + return NewTBinaryProtocolFactory(false, true) +} + +func NewTBinaryProtocolFactory(strictRead, strictWrite bool) *TBinaryProtocolFactory { + return &TBinaryProtocolFactory{strictRead: strictRead, strictWrite: strictWrite} +} + +func (p *TBinaryProtocolFactory) GetProtocol(t TTransport) TProtocol { + return NewTBinaryProtocol(t, p.strictRead, p.strictWrite) +} + +/** + * Writing Methods + */ + +func (p *TBinaryProtocol) WriteMessageBegin(name string, typeId TMessageType, seqId int32) error { + if p.strictWrite { + version := uint32(VERSION_1) | uint32(typeId) + e := p.WriteI32(int32(version)) + if e != nil { + return e + } + e = p.WriteString(name) + if e != nil { + return e + } + e = p.WriteI32(seqId) + return e + } else { + e := p.WriteString(name) + if e != nil { + return e + } + e = p.WriteByte(int8(typeId)) + if e != nil { + return e + } + e = p.WriteI32(seqId) + return e + } + return nil +} + +func (p *TBinaryProtocol) WriteMessageEnd() error { + return nil +} + +func (p *TBinaryProtocol) WriteStructBegin(name string) error { + return nil +} + +func (p *TBinaryProtocol) WriteStructEnd() error { + return nil +} + +func (p *TBinaryProtocol) WriteFieldBegin(name string, typeId TType, id int16) error { + e := p.WriteByte(int8(typeId)) + if e != nil { + return e + } + e = p.WriteI16(id) + return e +} + +func (p *TBinaryProtocol) WriteFieldEnd() error { + return nil +} + +func (p *TBinaryProtocol) WriteFieldStop() error { + e := p.WriteByte(STOP) + return e +} + +func (p *TBinaryProtocol) WriteMapBegin(keyType TType, valueType TType, size int) error { + e := p.WriteByte(int8(keyType)) + if e != nil { + return e + } + e = p.WriteByte(int8(valueType)) + if e != nil { + return e + } + e = p.WriteI32(int32(size)) + return e +} + +func (p *TBinaryProtocol) WriteMapEnd() error { + return nil +} + +func (p *TBinaryProtocol) WriteListBegin(elemType TType, size int) error { + e := p.WriteByte(int8(elemType)) + if e != nil { + return e + } + e = p.WriteI32(int32(size)) + return e +} + +func (p *TBinaryProtocol) WriteListEnd() error { + return nil +} + +func (p *TBinaryProtocol) WriteSetBegin(elemType TType, size int) error { + e := p.WriteByte(int8(elemType)) + if e != nil { + return e + } + e = p.WriteI32(int32(size)) + return e +} + +func (p *TBinaryProtocol) WriteSetEnd() error { + return nil +} + +func (p *TBinaryProtocol) WriteBool(value bool) error { + if value { + return p.WriteByte(1) + } + return p.WriteByte(0) +} + +func (p *TBinaryProtocol) WriteByte(value int8) error { + e := p.trans.WriteByte(byte(value)) + return NewTProtocolException(e) +} + +func (p *TBinaryProtocol) WriteI16(value int16) error { + v := p.buffer[0:2] + binary.BigEndian.PutUint16(v, uint16(value)) + _, e := p.trans.Write(v) + return NewTProtocolException(e) +} + +func (p *TBinaryProtocol) WriteI32(value int32) error { + v := p.buffer[0:4] + binary.BigEndian.PutUint32(v, uint32(value)) + _, e := p.trans.Write(v) + return NewTProtocolException(e) +} + +func (p *TBinaryProtocol) WriteI64(value int64) error { + v := p.buffer[0:8] + binary.BigEndian.PutUint64(v, uint64(value)) + _, err := p.trans.Write(v) + return NewTProtocolException(err) +} + +func (p *TBinaryProtocol) WriteDouble(value float64) error { + return p.WriteI64(int64(math.Float64bits(value))) +} + +func (p *TBinaryProtocol) WriteString(value string) error { + e := p.WriteI32(int32(len(value))) + if e != nil { + return e + } + _, err := p.trans.WriteString(value) + return NewTProtocolException(err) +} + +func (p *TBinaryProtocol) WriteBinary(value []byte) error { + e := p.WriteI32(int32(len(value))) + if e != nil { + return e + } + _, err := p.trans.Write(value) + return NewTProtocolException(err) +} + +/** + * Reading methods + */ + +func (p *TBinaryProtocol) ReadMessageBegin() (name string, typeId TMessageType, seqId int32, err error) { + size, e := p.ReadI32() + if e != nil { + return "", typeId, 0, NewTProtocolException(e) + } + if size < 0 { + typeId = TMessageType(size & 0x0ff) + version := int64(int64(size) & VERSION_MASK) + if version != VERSION_1 { + return name, typeId, seqId, NewTProtocolExceptionWithType(BAD_VERSION, fmt.Errorf("Bad version in ReadMessageBegin")) + } + name, e = p.ReadString() + if e != nil { + return name, typeId, seqId, NewTProtocolException(e) + } + seqId, e = p.ReadI32() + if e != nil { + return name, typeId, seqId, NewTProtocolException(e) + } + return name, typeId, seqId, nil + } + if p.strictRead { + return name, typeId, seqId, NewTProtocolExceptionWithType(BAD_VERSION, fmt.Errorf("Missing version in ReadMessageBegin")) + } + name, e2 := p.readStringBody(size) + if e2 != nil { + return name, typeId, seqId, e2 + } + b, e3 := p.ReadByte() + if e3 != nil { + return name, typeId, seqId, e3 + } + typeId = TMessageType(b) + seqId, e4 := p.ReadI32() + if e4 != nil { + return name, typeId, seqId, e4 + } + return name, typeId, seqId, nil +} + +func (p *TBinaryProtocol) ReadMessageEnd() error { + return nil +} + +func (p *TBinaryProtocol) ReadStructBegin() (name string, err error) { + return +} + +func (p *TBinaryProtocol) ReadStructEnd() error { + return nil +} + +func (p *TBinaryProtocol) ReadFieldBegin() (name string, typeId TType, seqId int16, err error) { + t, err := p.ReadByte() + typeId = TType(t) + if err != nil { + return name, typeId, seqId, err + } + if t != STOP { + seqId, err = p.ReadI16() + } + return name, typeId, seqId, err +} + +func (p *TBinaryProtocol) ReadFieldEnd() error { + return nil +} + +var invalidDataLength = NewTProtocolExceptionWithType(INVALID_DATA, errors.New("Invalid data length")) + +func (p *TBinaryProtocol) ReadMapBegin() (kType, vType TType, size int, err error) { + k, e := p.ReadByte() + if e != nil { + err = NewTProtocolException(e) + return + } + kType = TType(k) + v, e := p.ReadByte() + if e != nil { + err = NewTProtocolException(e) + return + } + vType = TType(v) + size32, e := p.ReadI32() + if e != nil { + err = NewTProtocolException(e) + return + } + if size32 < 0 { + err = invalidDataLength + return + } + size = int(size32) + return kType, vType, size, nil +} + +func (p *TBinaryProtocol) ReadMapEnd() error { + return nil +} + +func (p *TBinaryProtocol) ReadListBegin() (elemType TType, size int, err error) { + b, e := p.ReadByte() + if e != nil { + err = NewTProtocolException(e) + return + } + elemType = TType(b) + size32, e := p.ReadI32() + if e != nil { + err = NewTProtocolException(e) + return + } + if size32 < 0 { + err = invalidDataLength + return + } + size = int(size32) + + return +} + +func (p *TBinaryProtocol) ReadListEnd() error { + return nil +} + +func (p *TBinaryProtocol) ReadSetBegin() (elemType TType, size int, err error) { + b, e := p.ReadByte() + if e != nil { + err = NewTProtocolException(e) + return + } + elemType = TType(b) + size32, e := p.ReadI32() + if e != nil { + err = NewTProtocolException(e) + return + } + if size32 < 0 { + err = invalidDataLength + return + } + size = int(size32) + return elemType, size, nil +} + +func (p *TBinaryProtocol) ReadSetEnd() error { + return nil +} + +func (p *TBinaryProtocol) ReadBool() (bool, error) { + b, e := p.ReadByte() + v := true + if b != 1 { + v = false + } + return v, e +} + +func (p *TBinaryProtocol) ReadByte() (int8, error) { + v, err := p.trans.ReadByte() + return int8(v), err +} + +func (p *TBinaryProtocol) ReadI16() (value int16, err error) { + buf := p.buffer[0:2] + err = p.readAll(buf) + value = int16(binary.BigEndian.Uint16(buf)) + return value, err +} + +func (p *TBinaryProtocol) ReadI32() (value int32, err error) { + buf := p.buffer[0:4] + err = p.readAll(buf) + value = int32(binary.BigEndian.Uint32(buf)) + return value, err +} + +func (p *TBinaryProtocol) ReadI64() (value int64, err error) { + buf := p.buffer[0:8] + err = p.readAll(buf) + value = int64(binary.BigEndian.Uint64(buf)) + return value, err +} + +func (p *TBinaryProtocol) ReadDouble() (value float64, err error) { + buf := p.buffer[0:8] + err = p.readAll(buf) + value = math.Float64frombits(binary.BigEndian.Uint64(buf)) + return value, err +} + +func (p *TBinaryProtocol) ReadString() (value string, err error) { + size, e := p.ReadI32() + if e != nil { + return "", e + } + if size < 0 { + err = invalidDataLength + return + } + + return p.readStringBody(size) +} + +func (p *TBinaryProtocol) ReadBinary() ([]byte, error) { + size, e := p.ReadI32() + if e != nil { + return nil, e + } + if size < 0 { + return nil, invalidDataLength + } + + isize := int(size) + buf := make([]byte, isize) + _, err := io.ReadFull(p.trans, buf) + return buf, NewTProtocolException(err) +} + +func (p *TBinaryProtocol) Flush(ctx context.Context) (err error) { + return NewTProtocolException(p.trans.Flush(ctx)) +} + +func (p *TBinaryProtocol) Skip(fieldType TType) (err error) { + return SkipDefaultDepth(p, fieldType) +} + +func (p *TBinaryProtocol) Transport() TTransport { + return p.origTransport +} + +func (p *TBinaryProtocol) readAll(buf []byte) error { + _, err := io.ReadFull(p.trans, buf) + return NewTProtocolException(err) +} + +const readLimit = 32768 + +func (p *TBinaryProtocol) readStringBody(size int32) (value string, err error) { + if size < 0 { + return "", nil + } + + var ( + buf bytes.Buffer + e error + b []byte + ) + + switch { + case int(size) <= len(p.buffer): + b = p.buffer[:size] // avoids allocation for small reads + case int(size) < readLimit: + b = make([]byte, size) + default: + b = make([]byte, readLimit) + } + + for size > 0 { + _, e = io.ReadFull(p.trans, b) + buf.Write(b) + if e != nil { + break + } + size -= readLimit + if size < readLimit && size > 0 { + b = b[:size] + } + } + return buf.String(), NewTProtocolException(e) +} |