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Diffstat (limited to '')
-rw-r--r-- | src/jaegertracing/thrift/lib/go/thrift/numeric.go | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/go/thrift/numeric.go b/src/jaegertracing/thrift/lib/go/thrift/numeric.go new file mode 100644 index 000000000..aa8daa9b5 --- /dev/null +++ b/src/jaegertracing/thrift/lib/go/thrift/numeric.go @@ -0,0 +1,164 @@ +/* + * 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 ( + "math" + "strconv" +) + +type Numeric interface { + Int64() int64 + Int32() int32 + Int16() int16 + Byte() byte + Int() int + Float64() float64 + Float32() float32 + String() string + isNull() bool +} + +type numeric struct { + iValue int64 + dValue float64 + sValue string + isNil bool +} + +var ( + INFINITY Numeric + NEGATIVE_INFINITY Numeric + NAN Numeric + ZERO Numeric + NUMERIC_NULL Numeric +) + +func NewNumericFromDouble(dValue float64) Numeric { + if math.IsInf(dValue, 1) { + return INFINITY + } + if math.IsInf(dValue, -1) { + return NEGATIVE_INFINITY + } + if math.IsNaN(dValue) { + return NAN + } + iValue := int64(dValue) + sValue := strconv.FormatFloat(dValue, 'g', 10, 64) + isNil := false + return &numeric{iValue: iValue, dValue: dValue, sValue: sValue, isNil: isNil} +} + +func NewNumericFromI64(iValue int64) Numeric { + dValue := float64(iValue) + sValue := string(iValue) + isNil := false + return &numeric{iValue: iValue, dValue: dValue, sValue: sValue, isNil: isNil} +} + +func NewNumericFromI32(iValue int32) Numeric { + dValue := float64(iValue) + sValue := string(iValue) + isNil := false + return &numeric{iValue: int64(iValue), dValue: dValue, sValue: sValue, isNil: isNil} +} + +func NewNumericFromString(sValue string) Numeric { + if sValue == INFINITY.String() { + return INFINITY + } + if sValue == NEGATIVE_INFINITY.String() { + return NEGATIVE_INFINITY + } + if sValue == NAN.String() { + return NAN + } + iValue, _ := strconv.ParseInt(sValue, 10, 64) + dValue, _ := strconv.ParseFloat(sValue, 64) + isNil := len(sValue) == 0 + return &numeric{iValue: iValue, dValue: dValue, sValue: sValue, isNil: isNil} +} + +func NewNumericFromJSONString(sValue string, isNull bool) Numeric { + if isNull { + return NewNullNumeric() + } + if sValue == JSON_INFINITY { + return INFINITY + } + if sValue == JSON_NEGATIVE_INFINITY { + return NEGATIVE_INFINITY + } + if sValue == JSON_NAN { + return NAN + } + iValue, _ := strconv.ParseInt(sValue, 10, 64) + dValue, _ := strconv.ParseFloat(sValue, 64) + return &numeric{iValue: iValue, dValue: dValue, sValue: sValue, isNil: isNull} +} + +func NewNullNumeric() Numeric { + return &numeric{iValue: 0, dValue: 0.0, sValue: "", isNil: true} +} + +func (p *numeric) Int64() int64 { + return p.iValue +} + +func (p *numeric) Int32() int32 { + return int32(p.iValue) +} + +func (p *numeric) Int16() int16 { + return int16(p.iValue) +} + +func (p *numeric) Byte() byte { + return byte(p.iValue) +} + +func (p *numeric) Int() int { + return int(p.iValue) +} + +func (p *numeric) Float64() float64 { + return p.dValue +} + +func (p *numeric) Float32() float32 { + return float32(p.dValue) +} + +func (p *numeric) String() string { + return p.sValue +} + +func (p *numeric) isNull() bool { + return p.isNil +} + +func init() { + INFINITY = &numeric{iValue: 0, dValue: math.Inf(1), sValue: "Infinity", isNil: false} + NEGATIVE_INFINITY = &numeric{iValue: 0, dValue: math.Inf(-1), sValue: "-Infinity", isNil: false} + NAN = &numeric{iValue: 0, dValue: math.NaN(), sValue: "NaN", isNil: false} + ZERO = &numeric{iValue: 0, dValue: 0, sValue: "0", isNil: false} + NUMERIC_NULL = &numeric{iValue: 0, dValue: 0, sValue: "0", isNil: true} +} |