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rpc: add cache to basic parameters

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Need to cache values of string, bool, int and array because they can be
reused multiple times by RPC handlers. Other values don't need to be
cached.
This commit is contained in:
Anna Shaleva 2021-10-28 17:24:38 +03:00
parent 2fd04fbb35
commit 867bb708fc
1 changed files with 127 additions and 60 deletions
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187
pkg/rpc/request/param.go
View file

@ -23,6 +23,7 @@ type (
// the client.
Param struct {
json.RawMessage
cache interface{}
}
// FuncParam represents a function argument parameter used in the
@ -86,12 +87,18 @@ func (p *Param) GetStringStrict() (string, error) {
if p.IsNull() {
return "", errNotAString
}
var s string
err := json.Unmarshal(p.RawMessage, &s)
if err != nil {
return "", errNotAString
if p.cache == nil {
var s string
err := json.Unmarshal(p.RawMessage, &s)
if err != nil {
return "", errNotAString
}
p.cache = s
}
return s, nil
if s, ok := p.cache.(string); ok {
return s, nil
}
return "", errNotAString
}
// GetString returns string value of the parameter or tries to cast parameter to a string value.
@ -102,25 +109,40 @@ func (p *Param) GetString() (string, error) {
if p.IsNull() {
return "", errNotAString
}
var s string
err := json.Unmarshal(p.RawMessage, &s)
if err == nil {
return s, nil
if p.cache == nil {
var s string
err := json.Unmarshal(p.RawMessage, &s)
if err == nil {
p.cache = s
} else {
var i int
err = json.Unmarshal(p.RawMessage, &i)
if err == nil {
p.cache = i
} else {
var b bool
err = json.Unmarshal(p.RawMessage, &b)
if err == nil {
p.cache = b
} else {
return "", errNotAString
}
}
}
}
var i int
err = json.Unmarshal(p.RawMessage, &i)
if err == nil {
return strconv.Itoa(i), nil
}
var b bool
err = json.Unmarshal(p.RawMessage, &b)
if err == nil {
if b {
switch t := p.cache.(type) {
case string:
return t, nil
case int:
return strconv.Itoa(t), nil
case bool:
if t {
return "true", nil
}
return "false", nil
default:
return "", errNotAString
}
return "", errNotAString
}
// GetBooleanStrict returns boolean value of the parameter.
@ -129,9 +151,11 @@ func (p *Param) GetBooleanStrict() (bool, error) {
return false, errMissingParameter
}
if bytes.Equal(p.RawMessage, jsonTrueBytes) {
p.cache = true
return true, nil
}
if bytes.Equal(p.RawMessage, jsonFalseBytes) {
p.cache = false
return false, nil
}
return false, errNotABool
@ -146,21 +170,36 @@ func (p *Param) GetBoolean() (bool, error) {
return false, errNotABool
}
var b bool
err := json.Unmarshal(p.RawMessage, &b)
if err == nil {
return b, nil
if p.cache == nil {
err := json.Unmarshal(p.RawMessage, &b)
if err == nil {
p.cache = b
} else {
var s string
err = json.Unmarshal(p.RawMessage, &s)
if err == nil {
p.cache = s
} else {
var i int
err = json.Unmarshal(p.RawMessage, &i)
if err == nil {
p.cache = i
} else {
return false, errNotABool
}
}
}
}
var s string
err = json.Unmarshal(p.RawMessage, &s)
if err == nil {
return s != "", nil
switch t := p.cache.(type) {
case bool:
return t, nil
case string:
return t != "", nil
case int:
return t != 0, nil
default:
return false, errNotABool
}
var i int
err = json.Unmarshal(p.RawMessage, &i)
if err == nil {
return i != 0, nil
}
return false, errNotABool
}
// GetIntStrict returns int value of the parameter if the parameter is integer.
@ -171,12 +210,18 @@ func (p *Param) GetIntStrict() (int, error) {
if p.IsNull() {
return 0, errNotAnInt
}
var i int
err := json.Unmarshal(p.RawMessage, &i)
if err != nil {
return i, errNotAnInt
if p.cache == nil {
var i int
err := json.Unmarshal(p.RawMessage, &i)
if err != nil {
return i, errNotAnInt
}
p.cache = i
}
return i, nil
if i, ok := p.cache.(int); ok {
return i, nil
}
return 0, errNotAnInt
}
// GetInt returns int value of the parameter or tries to cast parameter to an int value.
@ -187,26 +232,40 @@ func (p *Param) GetInt() (int, error) {
if p.IsNull() {
return 0, errNotAnInt
}
var i int
err := json.Unmarshal(p.RawMessage, &i)
if err == nil {
return i, nil
}
var s string
err = json.Unmarshal(p.RawMessage, &s)
if err == nil {
return strconv.Atoi(s)
}
var b bool
err = json.Unmarshal(p.RawMessage, &b)
if err == nil {
i = 0
if b {
i = 1
if p.cache == nil {
var i int
err := json.Unmarshal(p.RawMessage, &i)
if err == nil {
p.cache = i
} else {
var s string
err = json.Unmarshal(p.RawMessage, &s)
if err == nil {
p.cache = s
} else {
var b bool
err = json.Unmarshal(p.RawMessage, &b)
if err == nil {
p.cache = b
} else {
return 0, errNotAnInt
}
}
}
return i, nil
}
return 0, errNotAnInt
switch t := p.cache.(type) {
case int:
return t, nil
case string:
return strconv.Atoi(t)
case bool:
if t {
return 1, nil
}
return 0, nil
default:
return 0, errNotAnInt
}
}
// GetArray returns a slice of Params stored in the parameter.
@ -217,12 +276,18 @@ func (p *Param) GetArray() ([]Param, error) {
if p.IsNull() {
return nil, errNotAnArray
}
a := []Param{}
err := json.Unmarshal(p.RawMessage, &a)
if err != nil {
return nil, errNotAnArray
if p.cache == nil {
a := []Param{}
err := json.Unmarshal(p.RawMessage, &a)
if err != nil {
return nil, errNotAnArray
}
p.cache = a
}
return a, nil
if a, ok := p.cache.([]Param); ok {
return a, nil
}
return nil, errNotAnArray
}
// GetUint256 returns Uint256 value of the parameter.
@ -274,6 +339,7 @@ func (p *Param) GetFuncParam() (FuncParam, error) {
if p == nil {
return FuncParam{}, errMissingParameter
}
// This one doesn't need to be cached, it's used only once.
fp := FuncParam{}
err := json.Unmarshal(p.RawMessage, &fp)
return fp, err
@ -303,6 +369,7 @@ func (p *Param) GetBytesBase64() ([]byte, error) {
// GetSignerWithWitness returns SignerWithWitness value of the parameter.
func (p *Param) GetSignerWithWitness() (SignerWithWitness, error) {
// This one doesn't need to be cached, it's used only once.
aux := new(signerWithWitnessAux)
err := json.Unmarshal(p.RawMessage, aux)
if err != nil {