diff options
Diffstat (limited to 'vendor/github.com/uber/jaeger-client-go/thrift/simple_json_protocol.go')
| -rw-r--r-- | vendor/github.com/uber/jaeger-client-go/thrift/simple_json_protocol.go | 1337 |
1 files changed, 0 insertions, 1337 deletions
diff --git a/vendor/github.com/uber/jaeger-client-go/thrift/simple_json_protocol.go b/vendor/github.com/uber/jaeger-client-go/thrift/simple_json_protocol.go deleted file mode 100644 index 412a482d0..000000000 --- a/vendor/github.com/uber/jaeger-client-go/thrift/simple_json_protocol.go +++ /dev/null @@ -1,1337 +0,0 @@ -/* - * 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 ( - "bufio" - "bytes" - "encoding/base64" - "encoding/json" - "fmt" - "io" - "math" - "strconv" -) - -type _ParseContext int - -const ( - _CONTEXT_IN_TOPLEVEL _ParseContext = 1 - _CONTEXT_IN_LIST_FIRST _ParseContext = 2 - _CONTEXT_IN_LIST _ParseContext = 3 - _CONTEXT_IN_OBJECT_FIRST _ParseContext = 4 - _CONTEXT_IN_OBJECT_NEXT_KEY _ParseContext = 5 - _CONTEXT_IN_OBJECT_NEXT_VALUE _ParseContext = 6 -) - -func (p _ParseContext) String() string { - switch p { - case _CONTEXT_IN_TOPLEVEL: - return "TOPLEVEL" - case _CONTEXT_IN_LIST_FIRST: - return "LIST-FIRST" - case _CONTEXT_IN_LIST: - return "LIST" - case _CONTEXT_IN_OBJECT_FIRST: - return "OBJECT-FIRST" - case _CONTEXT_IN_OBJECT_NEXT_KEY: - return "OBJECT-NEXT-KEY" - case _CONTEXT_IN_OBJECT_NEXT_VALUE: - return "OBJECT-NEXT-VALUE" - } - return "UNKNOWN-PARSE-CONTEXT" -} - -// JSON protocol implementation for thrift. -// -// This protocol produces/consumes a simple output format -// suitable for parsing by scripting languages. It should not be -// confused with the full-featured TJSONProtocol. -// -type TSimpleJSONProtocol struct { - trans TTransport - - parseContextStack []int - dumpContext []int - - writer *bufio.Writer - reader *bufio.Reader -} - -// Constructor -func NewTSimpleJSONProtocol(t TTransport) *TSimpleJSONProtocol { - v := &TSimpleJSONProtocol{trans: t, - writer: bufio.NewWriter(t), - reader: bufio.NewReader(t), - } - v.parseContextStack = append(v.parseContextStack, int(_CONTEXT_IN_TOPLEVEL)) - v.dumpContext = append(v.dumpContext, int(_CONTEXT_IN_TOPLEVEL)) - return v -} - -// Factory -type TSimpleJSONProtocolFactory struct{} - -func (p *TSimpleJSONProtocolFactory) GetProtocol(trans TTransport) TProtocol { - return NewTSimpleJSONProtocol(trans) -} - -func NewTSimpleJSONProtocolFactory() *TSimpleJSONProtocolFactory { - return &TSimpleJSONProtocolFactory{} -} - -var ( - JSON_COMMA []byte - JSON_COLON []byte - JSON_LBRACE []byte - JSON_RBRACE []byte - JSON_LBRACKET []byte - JSON_RBRACKET []byte - JSON_QUOTE byte - JSON_QUOTE_BYTES []byte - JSON_NULL []byte - JSON_TRUE []byte - JSON_FALSE []byte - JSON_INFINITY string - JSON_NEGATIVE_INFINITY string - JSON_NAN string - JSON_INFINITY_BYTES []byte - JSON_NEGATIVE_INFINITY_BYTES []byte - JSON_NAN_BYTES []byte - json_nonbase_map_elem_bytes []byte -) - -func init() { - JSON_COMMA = []byte{','} - JSON_COLON = []byte{':'} - JSON_LBRACE = []byte{'{'} - JSON_RBRACE = []byte{'}'} - JSON_LBRACKET = []byte{'['} - JSON_RBRACKET = []byte{']'} - JSON_QUOTE = '"' - JSON_QUOTE_BYTES = []byte{'"'} - JSON_NULL = []byte{'n', 'u', 'l', 'l'} - JSON_TRUE = []byte{'t', 'r', 'u', 'e'} - JSON_FALSE = []byte{'f', 'a', 'l', 's', 'e'} - JSON_INFINITY = "Infinity" - JSON_NEGATIVE_INFINITY = "-Infinity" - JSON_NAN = "NaN" - JSON_INFINITY_BYTES = []byte{'I', 'n', 'f', 'i', 'n', 'i', 't', 'y'} - JSON_NEGATIVE_INFINITY_BYTES = []byte{'-', 'I', 'n', 'f', 'i', 'n', 'i', 't', 'y'} - JSON_NAN_BYTES = []byte{'N', 'a', 'N'} - json_nonbase_map_elem_bytes = []byte{']', ',', '['} -} - -func jsonQuote(s string) string { - b, _ := json.Marshal(s) - s1 := string(b) - return s1 -} - -func jsonUnquote(s string) (string, bool) { - s1 := new(string) - err := json.Unmarshal([]byte(s), s1) - return *s1, err == nil -} - -func mismatch(expected, actual string) error { - return fmt.Errorf("Expected '%s' but found '%s' while parsing JSON.", expected, actual) -} - -func (p *TSimpleJSONProtocol) WriteMessageBegin(name string, typeId TMessageType, seqId int32) error { - p.resetContextStack() // THRIFT-3735 - if e := p.OutputListBegin(); e != nil { - return e - } - if e := p.WriteString(name); e != nil { - return e - } - if e := p.WriteByte(int8(typeId)); e != nil { - return e - } - if e := p.WriteI32(seqId); e != nil { - return e - } - return nil -} - -func (p *TSimpleJSONProtocol) WriteMessageEnd() error { - return p.OutputListEnd() -} - -func (p *TSimpleJSONProtocol) WriteStructBegin(name string) error { - if e := p.OutputObjectBegin(); e != nil { - return e - } - return nil -} - -func (p *TSimpleJSONProtocol) WriteStructEnd() error { - return p.OutputObjectEnd() -} - -func (p *TSimpleJSONProtocol) WriteFieldBegin(name string, typeId TType, id int16) error { - if e := p.WriteString(name); e != nil { - return e - } - return nil -} - -func (p *TSimpleJSONProtocol) WriteFieldEnd() error { - //return p.OutputListEnd() - return nil -} - -func (p *TSimpleJSONProtocol) WriteFieldStop() error { return nil } - -func (p *TSimpleJSONProtocol) WriteMapBegin(keyType TType, valueType TType, size int) error { - if e := p.OutputListBegin(); e != nil { - return e - } - if e := p.WriteByte(int8(keyType)); e != nil { - return e - } - if e := p.WriteByte(int8(valueType)); e != nil { - return e - } - return p.WriteI32(int32(size)) -} - -func (p *TSimpleJSONProtocol) WriteMapEnd() error { - return p.OutputListEnd() -} - -func (p *TSimpleJSONProtocol) WriteListBegin(elemType TType, size int) error { - return p.OutputElemListBegin(elemType, size) -} - -func (p *TSimpleJSONProtocol) WriteListEnd() error { - return p.OutputListEnd() -} - -func (p *TSimpleJSONProtocol) WriteSetBegin(elemType TType, size int) error { - return p.OutputElemListBegin(elemType, size) -} - -func (p *TSimpleJSONProtocol) WriteSetEnd() error { - return p.OutputListEnd() -} - -func (p *TSimpleJSONProtocol) WriteBool(b bool) error { - return p.OutputBool(b) -} - -func (p *TSimpleJSONProtocol) WriteByte(b int8) error { - return p.WriteI32(int32(b)) -} - -func (p *TSimpleJSONProtocol) WriteI16(v int16) error { - return p.WriteI32(int32(v)) -} - -func (p *TSimpleJSONProtocol) WriteI32(v int32) error { - return p.OutputI64(int64(v)) -} - -func (p *TSimpleJSONProtocol) WriteI64(v int64) error { - return p.OutputI64(int64(v)) -} - -func (p *TSimpleJSONProtocol) WriteDouble(v float64) error { - return p.OutputF64(v) -} - -func (p *TSimpleJSONProtocol) WriteString(v string) error { - return p.OutputString(v) -} - -func (p *TSimpleJSONProtocol) WriteBinary(v []byte) error { - // JSON library only takes in a string, - // not an arbitrary byte array, to ensure bytes are transmitted - // efficiently we must convert this into a valid JSON string - // therefore we use base64 encoding to avoid excessive escaping/quoting - if e := p.OutputPreValue(); e != nil { - return e - } - if _, e := p.write(JSON_QUOTE_BYTES); e != nil { - return NewTProtocolException(e) - } - writer := base64.NewEncoder(base64.StdEncoding, p.writer) - if _, e := writer.Write(v); e != nil { - p.writer.Reset(p.trans) // THRIFT-3735 - return NewTProtocolException(e) - } - if e := writer.Close(); e != nil { - return NewTProtocolException(e) - } - if _, e := p.write(JSON_QUOTE_BYTES); e != nil { - return NewTProtocolException(e) - } - return p.OutputPostValue() -} - -// Reading methods. -func (p *TSimpleJSONProtocol) ReadMessageBegin() (name string, typeId TMessageType, seqId int32, err error) { - p.resetContextStack() // THRIFT-3735 - if isNull, err := p.ParseListBegin(); isNull || err != nil { - return name, typeId, seqId, err - } - if name, err = p.ReadString(); err != nil { - return name, typeId, seqId, err - } - bTypeId, err := p.ReadByte() - typeId = TMessageType(bTypeId) - if err != nil { - return name, typeId, seqId, err - } - if seqId, err = p.ReadI32(); err != nil { - return name, typeId, seqId, err - } - return name, typeId, seqId, nil -} - -func (p *TSimpleJSONProtocol) ReadMessageEnd() error { - return p.ParseListEnd() -} - -func (p *TSimpleJSONProtocol) ReadStructBegin() (name string, err error) { - _, err = p.ParseObjectStart() - return "", err -} - -func (p *TSimpleJSONProtocol) ReadStructEnd() error { - return p.ParseObjectEnd() -} - -func (p *TSimpleJSONProtocol) ReadFieldBegin() (string, TType, int16, error) { - if err := p.ParsePreValue(); err != nil { - return "", STOP, 0, err - } - b, _ := p.reader.Peek(1) - if len(b) > 0 { - switch b[0] { - case JSON_RBRACE[0]: - return "", STOP, 0, nil - case JSON_QUOTE: - p.reader.ReadByte() - name, err := p.ParseStringBody() - // simplejson is not meant to be read back into thrift - // - see http://wiki.apache.org/thrift/ThriftUsageJava - // - use JSON instead - if err != nil { - return name, STOP, 0, err - } - return name, STOP, -1, p.ParsePostValue() - /* - if err = p.ParsePostValue(); err != nil { - return name, STOP, 0, err - } - if isNull, err := p.ParseListBegin(); isNull || err != nil { - return name, STOP, 0, err - } - bType, err := p.ReadByte() - thetype := TType(bType) - if err != nil { - return name, thetype, 0, err - } - id, err := p.ReadI16() - return name, thetype, id, err - */ - } - e := fmt.Errorf("Expected \"}\" or '\"', but found: '%s'", string(b)) - return "", STOP, 0, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - return "", STOP, 0, NewTProtocolException(io.EOF) -} - -func (p *TSimpleJSONProtocol) ReadFieldEnd() error { - return nil - //return p.ParseListEnd() -} - -func (p *TSimpleJSONProtocol) ReadMapBegin() (keyType TType, valueType TType, size int, e error) { - if isNull, e := p.ParseListBegin(); isNull || e != nil { - return VOID, VOID, 0, e - } - - // read keyType - bKeyType, e := p.ReadByte() - keyType = TType(bKeyType) - if e != nil { - return keyType, valueType, size, e - } - - // read valueType - bValueType, e := p.ReadByte() - valueType = TType(bValueType) - if e != nil { - return keyType, valueType, size, e - } - - // read size - iSize, err := p.ReadI64() - size = int(iSize) - return keyType, valueType, size, err -} - -func (p *TSimpleJSONProtocol) ReadMapEnd() error { - return p.ParseListEnd() -} - -func (p *TSimpleJSONProtocol) ReadListBegin() (elemType TType, size int, e error) { - return p.ParseElemListBegin() -} - -func (p *TSimpleJSONProtocol) ReadListEnd() error { - return p.ParseListEnd() -} - -func (p *TSimpleJSONProtocol) ReadSetBegin() (elemType TType, size int, e error) { - return p.ParseElemListBegin() -} - -func (p *TSimpleJSONProtocol) ReadSetEnd() error { - return p.ParseListEnd() -} - -func (p *TSimpleJSONProtocol) ReadBool() (bool, error) { - var value bool - - if err := p.ParsePreValue(); err != nil { - return value, err - } - f, _ := p.reader.Peek(1) - if len(f) > 0 { - switch f[0] { - case JSON_TRUE[0]: - b := make([]byte, len(JSON_TRUE)) - _, err := p.reader.Read(b) - if err != nil { - return false, NewTProtocolException(err) - } - if string(b) == string(JSON_TRUE) { - value = true - } else { - e := fmt.Errorf("Expected \"true\" but found: %s", string(b)) - return value, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - break - case JSON_FALSE[0]: - b := make([]byte, len(JSON_FALSE)) - _, err := p.reader.Read(b) - if err != nil { - return false, NewTProtocolException(err) - } - if string(b) == string(JSON_FALSE) { - value = false - } else { - e := fmt.Errorf("Expected \"false\" but found: %s", string(b)) - return value, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - break - case JSON_NULL[0]: - b := make([]byte, len(JSON_NULL)) - _, err := p.reader.Read(b) - if err != nil { - return false, NewTProtocolException(err) - } - if string(b) == string(JSON_NULL) { - value = false - } else { - e := fmt.Errorf("Expected \"null\" but found: %s", string(b)) - return value, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - default: - e := fmt.Errorf("Expected \"true\", \"false\", or \"null\" but found: %s", string(f)) - return value, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } - return value, p.ParsePostValue() -} - -func (p *TSimpleJSONProtocol) ReadByte() (int8, error) { - v, err := p.ReadI64() - return int8(v), err -} - -func (p *TSimpleJSONProtocol) ReadI16() (int16, error) { - v, err := p.ReadI64() - return int16(v), err -} - -func (p *TSimpleJSONProtocol) ReadI32() (int32, error) { - v, err := p.ReadI64() - return int32(v), err -} - -func (p *TSimpleJSONProtocol) ReadI64() (int64, error) { - v, _, err := p.ParseI64() - return v, err -} - -func (p *TSimpleJSONProtocol) ReadDouble() (float64, error) { - v, _, err := p.ParseF64() - return v, err -} - -func (p *TSimpleJSONProtocol) ReadString() (string, error) { - var v string - if err := p.ParsePreValue(); err != nil { - return v, err - } - f, _ := p.reader.Peek(1) - if len(f) > 0 && f[0] == JSON_QUOTE { - p.reader.ReadByte() - value, err := p.ParseStringBody() - v = value - if err != nil { - return v, err - } - } else if len(f) > 0 && f[0] == JSON_NULL[0] { - b := make([]byte, len(JSON_NULL)) - _, err := p.reader.Read(b) - if err != nil { - return v, NewTProtocolException(err) - } - if string(b) != string(JSON_NULL) { - e := fmt.Errorf("Expected a JSON string, found unquoted data started with %s", string(b)) - return v, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } else { - e := fmt.Errorf("Expected a JSON string, found unquoted data started with %s", string(f)) - return v, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - return v, p.ParsePostValue() -} - -func (p *TSimpleJSONProtocol) ReadBinary() ([]byte, error) { - var v []byte - if err := p.ParsePreValue(); err != nil { - return nil, err - } - f, _ := p.reader.Peek(1) - if len(f) > 0 && f[0] == JSON_QUOTE { - p.reader.ReadByte() - value, err := p.ParseBase64EncodedBody() - v = value - if err != nil { - return v, err - } - } else if len(f) > 0 && f[0] == JSON_NULL[0] { - b := make([]byte, len(JSON_NULL)) - _, err := p.reader.Read(b) - if err != nil { - return v, NewTProtocolException(err) - } - if string(b) != string(JSON_NULL) { - e := fmt.Errorf("Expected a JSON string, found unquoted data started with %s", string(b)) - return v, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } else { - e := fmt.Errorf("Expected a JSON string, found unquoted data started with %s", string(f)) - return v, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - - return v, p.ParsePostValue() -} - -func (p *TSimpleJSONProtocol) Flush() (err error) { - return NewTProtocolException(p.writer.Flush()) -} - -func (p *TSimpleJSONProtocol) Skip(fieldType TType) (err error) { - return SkipDefaultDepth(p, fieldType) -} - -func (p *TSimpleJSONProtocol) Transport() TTransport { - return p.trans -} - -func (p *TSimpleJSONProtocol) OutputPreValue() error { - cxt := _ParseContext(p.dumpContext[len(p.dumpContext)-1]) - switch cxt { - case _CONTEXT_IN_LIST, _CONTEXT_IN_OBJECT_NEXT_KEY: - if _, e := p.write(JSON_COMMA); e != nil { - return NewTProtocolException(e) - } - break - case _CONTEXT_IN_OBJECT_NEXT_VALUE: - if _, e := p.write(JSON_COLON); e != nil { - return NewTProtocolException(e) - } - break - } - return nil -} - -func (p *TSimpleJSONProtocol) OutputPostValue() error { - cxt := _ParseContext(p.dumpContext[len(p.dumpContext)-1]) - switch cxt { - case _CONTEXT_IN_LIST_FIRST: - p.dumpContext = p.dumpContext[:len(p.dumpContext)-1] - p.dumpContext = append(p.dumpContext, int(_CONTEXT_IN_LIST)) - break - case _CONTEXT_IN_OBJECT_FIRST: - p.dumpContext = p.dumpContext[:len(p.dumpContext)-1] - p.dumpContext = append(p.dumpContext, int(_CONTEXT_IN_OBJECT_NEXT_VALUE)) - break - case _CONTEXT_IN_OBJECT_NEXT_KEY: - p.dumpContext = p.dumpContext[:len(p.dumpContext)-1] - p.dumpContext = append(p.dumpContext, int(_CONTEXT_IN_OBJECT_NEXT_VALUE)) - break - case _CONTEXT_IN_OBJECT_NEXT_VALUE: - p.dumpContext = p.dumpContext[:len(p.dumpContext)-1] - p.dumpContext = append(p.dumpContext, int(_CONTEXT_IN_OBJECT_NEXT_KEY)) - break - } - return nil -} - -func (p *TSimpleJSONProtocol) OutputBool(value bool) error { - if e := p.OutputPreValue(); e != nil { - return e - } - var v string - if value { - v = string(JSON_TRUE) - } else { - v = string(JSON_FALSE) - } - switch _ParseContext(p.dumpContext[len(p.dumpContext)-1]) { - case _CONTEXT_IN_OBJECT_FIRST, _CONTEXT_IN_OBJECT_NEXT_KEY: - v = jsonQuote(v) - default: - } - if e := p.OutputStringData(v); e != nil { - return e - } - return p.OutputPostValue() -} - -func (p *TSimpleJSONProtocol) OutputNull() error { - if e := p.OutputPreValue(); e != nil { - return e - } - if _, e := p.write(JSON_NULL); e != nil { - return NewTProtocolException(e) - } - return p.OutputPostValue() -} - -func (p *TSimpleJSONProtocol) OutputF64(value float64) error { - if e := p.OutputPreValue(); e != nil { - return e - } - var v string - if math.IsNaN(value) { - v = string(JSON_QUOTE) + JSON_NAN + string(JSON_QUOTE) - } else if math.IsInf(value, 1) { - v = string(JSON_QUOTE) + JSON_INFINITY + string(JSON_QUOTE) - } else if math.IsInf(value, -1) { - v = string(JSON_QUOTE) + JSON_NEGATIVE_INFINITY + string(JSON_QUOTE) - } else { - v = strconv.FormatFloat(value, 'g', -1, 64) - switch _ParseContext(p.dumpContext[len(p.dumpContext)-1]) { - case _CONTEXT_IN_OBJECT_FIRST, _CONTEXT_IN_OBJECT_NEXT_KEY: - v = string(JSON_QUOTE) + v + string(JSON_QUOTE) - default: - } - } - if e := p.OutputStringData(v); e != nil { - return e - } - return p.OutputPostValue() -} - -func (p *TSimpleJSONProtocol) OutputI64(value int64) error { - if e := p.OutputPreValue(); e != nil { - return e - } - v := strconv.FormatInt(value, 10) - switch _ParseContext(p.dumpContext[len(p.dumpContext)-1]) { - case _CONTEXT_IN_OBJECT_FIRST, _CONTEXT_IN_OBJECT_NEXT_KEY: - v = jsonQuote(v) - default: - } - if e := p.OutputStringData(v); e != nil { - return e - } - return p.OutputPostValue() -} - -func (p *TSimpleJSONProtocol) OutputString(s string) error { - if e := p.OutputPreValue(); e != nil { - return e - } - if e := p.OutputStringData(jsonQuote(s)); e != nil { - return e - } - return p.OutputPostValue() -} - -func (p *TSimpleJSONProtocol) OutputStringData(s string) error { - _, e := p.write([]byte(s)) - return NewTProtocolException(e) -} - -func (p *TSimpleJSONProtocol) OutputObjectBegin() error { - if e := p.OutputPreValue(); e != nil { - return e - } - if _, e := p.write(JSON_LBRACE); e != nil { - return NewTProtocolException(e) - } - p.dumpContext = append(p.dumpContext, int(_CONTEXT_IN_OBJECT_FIRST)) - return nil -} - -func (p *TSimpleJSONProtocol) OutputObjectEnd() error { - if _, e := p.write(JSON_RBRACE); e != nil { - return NewTProtocolException(e) - } - p.dumpContext = p.dumpContext[:len(p.dumpContext)-1] - if e := p.OutputPostValue(); e != nil { - return e - } - return nil -} - -func (p *TSimpleJSONProtocol) OutputListBegin() error { - if e := p.OutputPreValue(); e != nil { - return e - } - if _, e := p.write(JSON_LBRACKET); e != nil { - return NewTProtocolException(e) - } - p.dumpContext = append(p.dumpContext, int(_CONTEXT_IN_LIST_FIRST)) - return nil -} - -func (p *TSimpleJSONProtocol) OutputListEnd() error { - if _, e := p.write(JSON_RBRACKET); e != nil { - return NewTProtocolException(e) - } - p.dumpContext = p.dumpContext[:len(p.dumpContext)-1] - if e := p.OutputPostValue(); e != nil { - return e - } - return nil -} - -func (p *TSimpleJSONProtocol) OutputElemListBegin(elemType TType, size int) error { - if e := p.OutputListBegin(); e != nil { - return e - } - if e := p.WriteByte(int8(elemType)); e != nil { - return e - } - if e := p.WriteI64(int64(size)); e != nil { - return e - } - return nil -} - -func (p *TSimpleJSONProtocol) ParsePreValue() error { - if e := p.readNonSignificantWhitespace(); e != nil { - return NewTProtocolException(e) - } - cxt := _ParseContext(p.parseContextStack[len(p.parseContextStack)-1]) - b, _ := p.reader.Peek(1) - switch cxt { - case _CONTEXT_IN_LIST: - if len(b) > 0 { - switch b[0] { - case JSON_RBRACKET[0]: - return nil - case JSON_COMMA[0]: - p.reader.ReadByte() - if e := p.readNonSignificantWhitespace(); e != nil { - return NewTProtocolException(e) - } - return nil - default: - e := fmt.Errorf("Expected \"]\" or \",\" in list context, but found \"%s\"", string(b)) - return NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } - break - case _CONTEXT_IN_OBJECT_NEXT_KEY: - if len(b) > 0 { - switch b[0] { - case JSON_RBRACE[0]: - return nil - case JSON_COMMA[0]: - p.reader.ReadByte() - if e := p.readNonSignificantWhitespace(); e != nil { - return NewTProtocolException(e) - } - return nil - default: - e := fmt.Errorf("Expected \"}\" or \",\" in object context, but found \"%s\"", string(b)) - return NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } - break - case _CONTEXT_IN_OBJECT_NEXT_VALUE: - if len(b) > 0 { - switch b[0] { - case JSON_COLON[0]: - p.reader.ReadByte() - if e := p.readNonSignificantWhitespace(); e != nil { - return NewTProtocolException(e) - } - return nil - default: - e := fmt.Errorf("Expected \":\" in object context, but found \"%s\"", string(b)) - return NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } - break - } - return nil -} - -func (p *TSimpleJSONProtocol) ParsePostValue() error { - if e := p.readNonSignificantWhitespace(); e != nil { - return NewTProtocolException(e) - } - cxt := _ParseContext(p.parseContextStack[len(p.parseContextStack)-1]) - switch cxt { - case _CONTEXT_IN_LIST_FIRST: - p.parseContextStack = p.parseContextStack[:len(p.parseContextStack)-1] - p.parseContextStack = append(p.parseContextStack, int(_CONTEXT_IN_LIST)) - break - case _CONTEXT_IN_OBJECT_FIRST, _CONTEXT_IN_OBJECT_NEXT_KEY: - p.parseContextStack = p.parseContextStack[:len(p.parseContextStack)-1] - p.parseContextStack = append(p.parseContextStack, int(_CONTEXT_IN_OBJECT_NEXT_VALUE)) - break - case _CONTEXT_IN_OBJECT_NEXT_VALUE: - p.parseContextStack = p.parseContextStack[:len(p.parseContextStack)-1] - p.parseContextStack = append(p.parseContextStack, int(_CONTEXT_IN_OBJECT_NEXT_KEY)) - break - } - return nil -} - -func (p *TSimpleJSONProtocol) readNonSignificantWhitespace() error { - for { - b, _ := p.reader.Peek(1) - if len(b) < 1 { - return nil - } - switch b[0] { - case ' ', '\r', '\n', '\t': - p.reader.ReadByte() - continue - default: - break - } - break - } - return nil -} - -func (p *TSimpleJSONProtocol) ParseStringBody() (string, error) { - line, err := p.reader.ReadString(JSON_QUOTE) - if err != nil { - return "", NewTProtocolException(err) - } - l := len(line) - // count number of escapes to see if we need to keep going - i := 1 - for ; i < l; i++ { - if line[l-i-1] != '\\' { - break - } - } - if i&0x01 == 1 { - v, ok := jsonUnquote(string(JSON_QUOTE) + line) - if !ok { - return "", NewTProtocolException(err) - } - return v, nil - } - s, err := p.ParseQuotedStringBody() - if err != nil { - return "", NewTProtocolException(err) - } - str := string(JSON_QUOTE) + line + s - v, ok := jsonUnquote(str) - if !ok { - e := fmt.Errorf("Unable to parse as JSON string %s", str) - return "", NewTProtocolExceptionWithType(INVALID_DATA, e) - } - return v, nil -} - -func (p *TSimpleJSONProtocol) ParseQuotedStringBody() (string, error) { - line, err := p.reader.ReadString(JSON_QUOTE) - if err != nil { - return "", NewTProtocolException(err) - } - l := len(line) - // count number of escapes to see if we need to keep going - i := 1 - for ; i < l; i++ { - if line[l-i-1] != '\\' { - break - } - } - if i&0x01 == 1 { - return line, nil - } - s, err := p.ParseQuotedStringBody() - if err != nil { - return "", NewTProtocolException(err) - } - v := line + s - return v, nil -} - -func (p *TSimpleJSONProtocol) ParseBase64EncodedBody() ([]byte, error) { - line, err := p.reader.ReadBytes(JSON_QUOTE) - if err != nil { - return line, NewTProtocolException(err) - } - line2 := line[0 : len(line)-1] - l := len(line2) - if (l % 4) != 0 { - pad := 4 - (l % 4) - fill := [...]byte{'=', '=', '='} - line2 = append(line2, fill[:pad]...) - l = len(line2) - } - output := make([]byte, base64.StdEncoding.DecodedLen(l)) - n, err := base64.StdEncoding.Decode(output, line2) - return output[0:n], NewTProtocolException(err) -} - -func (p *TSimpleJSONProtocol) ParseI64() (int64, bool, error) { - if err := p.ParsePreValue(); err != nil { - return 0, false, err - } - var value int64 - var isnull bool - if p.safePeekContains(JSON_NULL) { - p.reader.Read(make([]byte, len(JSON_NULL))) - isnull = true - } else { - num, err := p.readNumeric() - isnull = (num == nil) - if !isnull { - value = num.Int64() - } - if err != nil { - return value, isnull, err - } - } - return value, isnull, p.ParsePostValue() -} - -func (p *TSimpleJSONProtocol) ParseF64() (float64, bool, error) { - if err := p.ParsePreValue(); err != nil { - return 0, false, err - } - var value float64 - var isnull bool - if p.safePeekContains(JSON_NULL) { - p.reader.Read(make([]byte, len(JSON_NULL))) - isnull = true - } else { - num, err := p.readNumeric() - isnull = (num == nil) - if !isnull { - value = num.Float64() - } - if err != nil { - return value, isnull, err - } - } - return value, isnull, p.ParsePostValue() -} - -func (p *TSimpleJSONProtocol) ParseObjectStart() (bool, error) { - if err := p.ParsePreValue(); err != nil { - return false, err - } - var b []byte - b, err := p.reader.Peek(1) - if err != nil { - return false, err - } - if len(b) > 0 && b[0] == JSON_LBRACE[0] { - p.reader.ReadByte() - p.parseContextStack = append(p.parseContextStack, int(_CONTEXT_IN_OBJECT_FIRST)) - return false, nil - } else if p.safePeekContains(JSON_NULL) { - return true, nil - } - e := fmt.Errorf("Expected '{' or null, but found '%s'", string(b)) - return false, NewTProtocolExceptionWithType(INVALID_DATA, e) -} - -func (p *TSimpleJSONProtocol) ParseObjectEnd() error { - if isNull, err := p.readIfNull(); isNull || err != nil { - return err - } - cxt := _ParseContext(p.parseContextStack[len(p.parseContextStack)-1]) - if (cxt != _CONTEXT_IN_OBJECT_FIRST) && (cxt != _CONTEXT_IN_OBJECT_NEXT_KEY) { - e := fmt.Errorf("Expected to be in the Object Context, but not in Object Context (%d)", cxt) - return NewTProtocolExceptionWithType(INVALID_DATA, e) - } - line, err := p.reader.ReadString(JSON_RBRACE[0]) - if err != nil { - return NewTProtocolException(err) - } - for _, char := range line { - switch char { - default: - e := fmt.Errorf("Expecting end of object \"}\", but found: \"%s\"", line) - return NewTProtocolExceptionWithType(INVALID_DATA, e) - case ' ', '\n', '\r', '\t', '}': - break - } - } - p.parseContextStack = p.parseContextStack[:len(p.parseContextStack)-1] - return p.ParsePostValue() -} - -func (p *TSimpleJSONProtocol) ParseListBegin() (isNull bool, err error) { - if e := p.ParsePreValue(); e != nil { - return false, e - } - var b []byte - b, err = p.reader.Peek(1) - if err != nil { - return false, err - } - if len(b) >= 1 && b[0] == JSON_LBRACKET[0] { - p.parseContextStack = append(p.parseContextStack, int(_CONTEXT_IN_LIST_FIRST)) - p.reader.ReadByte() - isNull = false - } else if p.safePeekContains(JSON_NULL) { - isNull = true - } else { - err = fmt.Errorf("Expected \"null\" or \"[\", received %q", b) - } - return isNull, NewTProtocolExceptionWithType(INVALID_DATA, err) -} - -func (p *TSimpleJSONProtocol) ParseElemListBegin() (elemType TType, size int, e error) { - if isNull, e := p.ParseListBegin(); isNull || e != nil { - return VOID, 0, e - } - bElemType, err := p.ReadByte() - elemType = TType(bElemType) - if err != nil { - return elemType, size, err - } - nSize, err2 := p.ReadI64() - size = int(nSize) - return elemType, size, err2 -} - -func (p *TSimpleJSONProtocol) ParseListEnd() error { - if isNull, err := p.readIfNull(); isNull || err != nil { - return err - } - cxt := _ParseContext(p.parseContextStack[len(p.parseContextStack)-1]) - if cxt != _CONTEXT_IN_LIST { - e := fmt.Errorf("Expected to be in the List Context, but not in List Context (%d)", cxt) - return NewTProtocolExceptionWithType(INVALID_DATA, e) - } - line, err := p.reader.ReadString(JSON_RBRACKET[0]) - if err != nil { - return NewTProtocolException(err) - } - for _, char := range line { - switch char { - default: - e := fmt.Errorf("Expecting end of list \"]\", but found: \"%s\"", line) - return NewTProtocolExceptionWithType(INVALID_DATA, e) - case ' ', '\n', '\r', '\t', rune(JSON_RBRACKET[0]): - break - } - } - p.parseContextStack = p.parseContextStack[:len(p.parseContextStack)-1] - if _ParseContext(p.parseContextStack[len(p.parseContextStack)-1]) == _CONTEXT_IN_TOPLEVEL { - return nil - } - return p.ParsePostValue() -} - -func (p *TSimpleJSONProtocol) readSingleValue() (interface{}, TType, error) { - e := p.readNonSignificantWhitespace() - if e != nil { - return nil, VOID, NewTProtocolException(e) - } - b, e := p.reader.Peek(1) - if len(b) > 0 { - c := b[0] - switch c { - case JSON_NULL[0]: - buf := make([]byte, len(JSON_NULL)) - _, e := p.reader.Read(buf) - if e != nil { - return nil, VOID, NewTProtocolException(e) - } - if string(JSON_NULL) != string(buf) { - e = mismatch(string(JSON_NULL), string(buf)) - return nil, VOID, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - return nil, VOID, nil - case JSON_QUOTE: - p.reader.ReadByte() - v, e := p.ParseStringBody() - if e != nil { - return v, UTF8, NewTProtocolException(e) - } - if v == JSON_INFINITY { - return INFINITY, DOUBLE, nil - } else if v == JSON_NEGATIVE_INFINITY { - return NEGATIVE_INFINITY, DOUBLE, nil - } else if v == JSON_NAN { - return NAN, DOUBLE, nil - } - return v, UTF8, nil - case JSON_TRUE[0]: - buf := make([]byte, len(JSON_TRUE)) - _, e := p.reader.Read(buf) - if e != nil { - return true, BOOL, NewTProtocolException(e) - } - if string(JSON_TRUE) != string(buf) { - e := mismatch(string(JSON_TRUE), string(buf)) - return true, BOOL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - return true, BOOL, nil - case JSON_FALSE[0]: - buf := make([]byte, len(JSON_FALSE)) - _, e := p.reader.Read(buf) - if e != nil { - return false, BOOL, NewTProtocolException(e) - } - if string(JSON_FALSE) != string(buf) { - e := mismatch(string(JSON_FALSE), string(buf)) - return false, BOOL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - return false, BOOL, nil - case JSON_LBRACKET[0]: - _, e := p.reader.ReadByte() - return make([]interface{}, 0), LIST, NewTProtocolException(e) - case JSON_LBRACE[0]: - _, e := p.reader.ReadByte() - return make(map[string]interface{}), STRUCT, NewTProtocolException(e) - case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'e', 'E', '.', '+', '-', JSON_INFINITY[0], JSON_NAN[0]: - // assume numeric - v, e := p.readNumeric() - return v, DOUBLE, e - default: - e := fmt.Errorf("Expected element in list but found '%s' while parsing JSON.", string(c)) - return nil, VOID, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } - e = fmt.Errorf("Cannot read a single element while parsing JSON.") - return nil, VOID, NewTProtocolExceptionWithType(INVALID_DATA, e) - -} - -func (p *TSimpleJSONProtocol) readIfNull() (bool, error) { - cont := true - for cont { - b, _ := p.reader.Peek(1) - if len(b) < 1 { - return false, nil - } - switch b[0] { - default: - return false, nil - case JSON_NULL[0]: - cont = false - break - case ' ', '\n', '\r', '\t': - p.reader.ReadByte() - break - } - } - if p.safePeekContains(JSON_NULL) { - p.reader.Read(make([]byte, len(JSON_NULL))) - return true, nil - } - return false, nil -} - -func (p *TSimpleJSONProtocol) readQuoteIfNext() { - b, _ := p.reader.Peek(1) - if len(b) > 0 && b[0] == JSON_QUOTE { - p.reader.ReadByte() - } -} - -func (p *TSimpleJSONProtocol) readNumeric() (Numeric, error) { - isNull, err := p.readIfNull() - if isNull || err != nil { - return NUMERIC_NULL, err - } - hasDecimalPoint := false - nextCanBeSign := true - hasE := false - MAX_LEN := 40 - buf := bytes.NewBuffer(make([]byte, 0, MAX_LEN)) - continueFor := true - inQuotes := false - for continueFor { - c, err := p.reader.ReadByte() - if err != nil { - if err == io.EOF { - break - } - return NUMERIC_NULL, NewTProtocolException(err) - } - switch c { - case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': - buf.WriteByte(c) - nextCanBeSign = false - case '.': - if hasDecimalPoint { - e := fmt.Errorf("Unable to parse number with multiple decimal points '%s.'", buf.String()) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - if hasE { - e := fmt.Errorf("Unable to parse number with decimal points in the exponent '%s.'", buf.String()) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - buf.WriteByte(c) - hasDecimalPoint, nextCanBeSign = true, false - case 'e', 'E': - if hasE { - e := fmt.Errorf("Unable to parse number with multiple exponents '%s%c'", buf.String(), c) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - buf.WriteByte(c) - hasE, nextCanBeSign = true, true - case '-', '+': - if !nextCanBeSign { - e := fmt.Errorf("Negative sign within number") - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - buf.WriteByte(c) - nextCanBeSign = false - case ' ', 0, '\t', '\n', '\r', JSON_RBRACE[0], JSON_RBRACKET[0], JSON_COMMA[0], JSON_COLON[0]: - p.reader.UnreadByte() - continueFor = false - case JSON_NAN[0]: - if buf.Len() == 0 { - buffer := make([]byte, len(JSON_NAN)) - buffer[0] = c - _, e := p.reader.Read(buffer[1:]) - if e != nil { - return NUMERIC_NULL, NewTProtocolException(e) - } - if JSON_NAN != string(buffer) { - e := mismatch(JSON_NAN, string(buffer)) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - if inQuotes { - p.readQuoteIfNext() - } - return NAN, nil - } else { - e := fmt.Errorf("Unable to parse number starting with character '%c'", c) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - case JSON_INFINITY[0]: - if buf.Len() == 0 || (buf.Len() == 1 && buf.Bytes()[0] == '+') { - buffer := make([]byte, len(JSON_INFINITY)) - buffer[0] = c - _, e := p.reader.Read(buffer[1:]) - if e != nil { - return NUMERIC_NULL, NewTProtocolException(e) - } - if JSON_INFINITY != string(buffer) { - e := mismatch(JSON_INFINITY, string(buffer)) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - if inQuotes { - p.readQuoteIfNext() - } - return INFINITY, nil - } else if buf.Len() == 1 && buf.Bytes()[0] == JSON_NEGATIVE_INFINITY[0] { - buffer := make([]byte, len(JSON_NEGATIVE_INFINITY)) - buffer[0] = JSON_NEGATIVE_INFINITY[0] - buffer[1] = c - _, e := p.reader.Read(buffer[2:]) - if e != nil { - return NUMERIC_NULL, NewTProtocolException(e) - } - if JSON_NEGATIVE_INFINITY != string(buffer) { - e := mismatch(JSON_NEGATIVE_INFINITY, string(buffer)) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - if inQuotes { - p.readQuoteIfNext() - } - return NEGATIVE_INFINITY, nil - } else { - e := fmt.Errorf("Unable to parse number starting with character '%c' due to existing buffer %s", c, buf.String()) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - case JSON_QUOTE: - if !inQuotes { - inQuotes = true - } else { - break - } - default: - e := fmt.Errorf("Unable to parse number starting with character '%c'", c) - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - } - if buf.Len() == 0 { - e := fmt.Errorf("Unable to parse number from empty string ''") - return NUMERIC_NULL, NewTProtocolExceptionWithType(INVALID_DATA, e) - } - return NewNumericFromJSONString(buf.String(), false), nil -} - -// Safely peeks into the buffer, reading only what is necessary -func (p *TSimpleJSONProtocol) safePeekContains(b []byte) bool { - for i := 0; i < len(b); i++ { - a, _ := p.reader.Peek(i + 1) - if len(a) == 0 || a[i] != b[i] { - return false - } - } - return true -} - -// Reset the context stack to its initial state. -func (p *TSimpleJSONProtocol) resetContextStack() { - p.parseContextStack = []int{int(_CONTEXT_IN_TOPLEVEL)} - p.dumpContext = []int{int(_CONTEXT_IN_TOPLEVEL)} -} - -func (p *TSimpleJSONProtocol) write(b []byte) (int, error) { - n, err := p.writer.Write(b) - if err != nil { - p.writer.Reset(p.trans) // THRIFT-3735 - } - return n, err -} |