joeybloggs
8 years ago
parent
5c8ad6a1a9
commit
c0a414dc9e
@ -1,71 +1,508 @@ |
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package validator |
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|
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import ( |
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"fmt" |
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"reflect" |
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"strings" |
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"sync" |
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"sync/atomic" |
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) |
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type cachedField struct { |
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Idx int |
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Name string |
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AltName string |
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CachedTag *cachedTag |
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// type cachedField struct {
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// Idx int
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// Name string
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// AltName string
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// CachedTag *cachedTag
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// }
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// type cachedStruct struct {
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// Name string
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// fields map[int]cachedField
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// }
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// type structCacheMap struct {
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// lock sync.RWMutex
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// m map[reflect.Type]*cachedStruct
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// }
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// func (s *structCacheMap) Get(key reflect.Type) (*cachedStruct, bool) {
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// s.lock.RLock()
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// value, ok := s.m[key]
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// s.lock.RUnlock()
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// return value, ok
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// }
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// func (s *structCacheMap) Set(key reflect.Type, value *cachedStruct) {
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// s.lock.Lock()
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// s.m[key] = value
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// s.lock.Unlock()
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// }
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// type cachedTag struct {
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// tag string
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// isOmitEmpty bool
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// isNoStructLevel bool
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// isStructOnly bool
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// diveTag string
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// tags []*tagVals
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// }
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// type tagVals struct {
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// tagVals [][]string
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// isOrVal bool
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// isAlias bool
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// tag string
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// }
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// type tagCacheMap struct {
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// lock sync.RWMutex
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// m map[string]*cachedTag
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// }
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// func (s *tagCacheMap) Get(key string) (*cachedTag, bool) {
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// s.lock.RLock()
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// value, ok := s.m[key]
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// s.lock.RUnlock()
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// return value, ok
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// }
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// func (s *tagCacheMap) Set(key string, value *cachedTag) {
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// s.lock.Lock()
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// s.m[key] = value
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// s.lock.Unlock()
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// }
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// ******* New Cache ***************
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type structCache struct { |
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lock sync.Mutex |
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m atomic.Value // map[reflect.Type]*cStruct
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} |
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type cachedStruct struct { |
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Name string |
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fields map[int]cachedField |
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func (sc *structCache) Get(key reflect.Type) (c *cStruct, found bool) { |
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c, found = sc.m.Load().(map[reflect.Type]*cStruct)[key] |
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return |
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} |
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func (sc *structCache) Set(key reflect.Type, value *cStruct) { |
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m := sc.m.Load().(map[reflect.Type]*cStruct) |
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nm := make(map[reflect.Type]*cStruct, len(m)+1) |
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for k, v := range m { |
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nm[k] = v |
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} |
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nm[key] = value |
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sc.m.Store(nm) |
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} |
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type tagCache struct { |
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lock sync.Mutex |
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m atomic.Value // map[string]*cTag
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} |
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type structCacheMap struct { |
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lock sync.RWMutex |
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m map[reflect.Type]*cachedStruct |
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func (tc *tagCache) Get(key string) (c *cTag, found bool) { |
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c, found = tc.m.Load().(map[string]*cTag)[key] |
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return |
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} |
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func (s *structCacheMap) Get(key reflect.Type) (*cachedStruct, bool) { |
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s.lock.RLock() |
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value, ok := s.m[key] |
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s.lock.RUnlock() |
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return value, ok |
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func (tc *tagCache) Set(key string, value *cTag) { |
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m := tc.m.Load().(map[string]*cTag) |
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nm := make(map[string]*cTag, len(m)+1) |
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for k, v := range m { |
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nm[k] = v |
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} |
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nm[key] = value |
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tc.m.Store(nm) |
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} |
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func (s *structCacheMap) Set(key reflect.Type, value *cachedStruct) { |
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s.lock.Lock() |
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s.m[key] = value |
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s.lock.Unlock() |
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type cStruct struct { |
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Name string |
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fields map[int]*cField |
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fn StructLevelFunc |
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} |
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type cField struct { |
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Idx int |
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Name string |
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AltName string |
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cTags *cTag |
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} |
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type cachedTag struct { |
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// TODO: investigate using enum instead of so many booleans, may be faster
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// but let's get the new cache system working first
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type cTag struct { |
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tag string |
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aliasTag string |
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actualAliasTag string |
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param string |
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hasAlias bool |
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isOmitEmpty bool |
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isNoStructLevel bool |
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isStructOnly bool |
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diveTag string |
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tags []*tagVals |
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} |
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type tagVals struct { |
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tagVals [][]string |
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isDive bool |
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isOrVal bool |
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isAlias bool |
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tag string |
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exists bool |
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hasTag bool |
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fn Func |
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next *cTag |
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} |
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type tagCacheMap struct { |
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lock sync.RWMutex |
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m map[string]*cachedTag |
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} |
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// TODO: eliminate get and set functions from cache, they are pure overhead for nicer syntax.
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func (v *Validate) extractStructCache(current reflect.Value, sName string) *cStruct { |
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v.structCache.lock.Lock() |
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defer v.structCache.lock.Unlock() |
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typ := current.Type() |
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// could have been multiple trying to access, but once first is done this ensures struct
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// isn't parsed again.
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cs, ok := v.structCache.Get(typ) |
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if ok { |
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// v.structCache.lock.Unlock()
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return cs |
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} |
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cs = &cStruct{Name: sName, fields: make(map[int]*cField), fn: v.structLevelFuncs[typ]} |
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numFields := current.NumField() |
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var ctag *cTag |
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var fld reflect.StructField |
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var tag string |
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var customName string |
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for i := 0; i < numFields; i++ { |
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fld = typ.Field(i) |
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// if fld.PkgPath != blank {
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if !fld.Anonymous && fld.PkgPath != blank { |
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continue |
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} |
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tag = fld.Tag.Get(v.tagName) |
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// if len(tag) == 0 || tag == skipValidationTag {
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if tag == skipValidationTag { |
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continue |
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} |
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customName = fld.Name |
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if v.fieldNameTag != blank { |
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name := strings.SplitN(fld.Tag.Get(v.fieldNameTag), ",", 2)[0] |
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// dash check is for json "-" (aka skipValidationTag) means don't output in json
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if name != "" && name != skipValidationTag { |
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customName = name |
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} |
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} |
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// fmt.Println("Finding Struct Tag", sName, "FLD:", fld.Name)
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// ctag, ok := v.tagCache.Get(tag)
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// if !ok {
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// fmt.Println("Not Found, Lock then check again for parallel operations")
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// v.tagCache.lock.Lock()
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// defer func() {
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// fmt.Println("Ulocking")
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// v.tagCache.lock.Unlock()
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// fmt.Println("Unlocked")
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// }()
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// defer v.tagCache.lock.Unlock()
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// if ctag, ok = v.tagCache.Get(tag); !ok {
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// fmt.Println("parsing tag", tag)
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// ctag = v.parseFieldTags(tag, fld.Name)
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// NOTE: cannot use tag cache, because tag may be equal, but things like alias may be different
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// and so only struct level caching can be used
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if len(tag) > 0 { |
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ctag, _ = v.parseFieldTagsRecursive(tag, fld.Name, blank, false) |
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} else { |
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// even if field doesn't have validations need cTag for traversing to potential inner/nested
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// elements of the field.
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ctag = new(cTag) |
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} |
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// fmt.Println("Done Parsing")
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// v.tagCache.Set(tag, ctag)
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// fmt.Println("Tag Cahed")
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// }
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// fmt.Println("Ulocking")
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// v.tagCache.lock.Unlock()
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// fmt.Println("Unlocked")
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// }
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// fmt.Println(tag, ctag)
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func (s *tagCacheMap) Get(key string) (*cachedTag, bool) { |
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s.lock.RLock() |
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value, ok := s.m[key] |
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s.lock.RUnlock() |
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cs.fields[i] = &cField{Idx: i, Name: fld.Name, AltName: customName, cTags: ctag} |
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} |
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return value, ok |
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// If not anonymous type; they have to be parsed every time because if interface
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// a different struct could be used...
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// if len(sName) > 0 {
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// fmt.Println(typ)
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v.structCache.Set(typ, cs) |
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// }
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// v.structCache.lock.Unlock()
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return cs |
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} |
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func (s *tagCacheMap) Set(key string, value *cachedTag) { |
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s.lock.Lock() |
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s.m[key] = value |
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s.lock.Unlock() |
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// func (v *Validate) parseFieldTags(tag, fieldName string) (ctag *cTag) {
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// // ctag := &cTag{tag: tag}
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// // fmt.Println(tag)
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// ctag, _ = v.parseFieldTagsRecursive(tag, fieldName, blank, false)
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// v.tagCache.Set(tag, ctag)
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// // fmt.Println(ctag)
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// return
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// }
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// TODO: Optimize for to not Split but ust for over string chunk, by chunk
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func (v *Validate) parseFieldTagsRecursive(tag string, fieldName string, alias string, hasAlias bool) (firstCtag *cTag, current *cTag) { |
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// func (v *Validate) parseFieldTagsRecursive(ctag *cTag, tag, fieldName, alias string, isAlias bool) bool {
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// if tag == blank {
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// return
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// }
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// fmt.Println("Parsing, depath:", depth)
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var t string |
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var ok bool |
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noAlias := len(alias) == 0 |
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// var tmpCtag *cTag
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// var start,end int
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// var ctag *cTag
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// var lastCtag *cTag
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// ctag := &cTag{tag: tag}
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tags := strings.Split(tag, tagSeparator) |
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// fmt.Println(len(tags), tags)
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for i := 0; i < len(tags); i++ { |
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// for i := 0; i < len(tags); i++ {
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t = tags[i] |
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if noAlias { |
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alias = t |
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} |
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// _, found := v.aliasValidators[t]
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// fmt.Println(i, t, found)
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// if len(t) == 0 {
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// continue
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// }
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// if i == 0 {
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// current = &cTag{aliasTag: alias, hasAlias: hasAlias}
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// firstCtag = current
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// } else {
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// current.next = &cTag{aliasTag: alias, hasAlias: hasAlias}
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// current = current.next
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// }
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if v.hasAliasValidators { |
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// check map for alias and process new tags, otherwise process as usual
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if tagsVal, found := v.aliasValidators[t]; found { |
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// fmt.Println(tagsVal)
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if i == 0 { |
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firstCtag, current = v.parseFieldTagsRecursive(tagsVal, fieldName, t, true) |
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} else { |
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// fmt.Println("BEFORE ALIAS:", current)
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// diveCurr := current
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next, curr := v.parseFieldTagsRecursive(tagsVal, fieldName, t, true) |
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// fmt.Println("ALIAS:", next, curr)
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current.next, current = next, curr |
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// fmt.Println("AFTER current", diveCurr)
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// current.next, current = v.parseFieldTagsRecursive(tagsVal, fieldName, t, true)
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} |
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continue |
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// // tmpCtag, lastCtag = v.parseFieldTagsRecursive(tagsVal, fieldName, t, true)
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// // if ctag == nil {
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// // ctag = tmpCtag
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// // } else {
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// // ctag.next = tmpCtag
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// // }
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} |
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} |
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// if i == 0 {
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// firstCtag = current
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// }
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// type cTag struct {
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// tag string
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// aliasTag string
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// hasAlias bool
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// isOmitEmpty bool
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// isNoStructLevel bool
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// isStructOnly bool
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// isDive bool
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// isOrVal bool
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// fn Func
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// next *cTag
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// }
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// if lastCtag == nil {
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// lastCtag = ctag
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// }
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if i == 0 { |
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current = &cTag{aliasTag: alias, hasAlias: hasAlias, hasTag: true} |
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firstCtag = current |
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} else { |
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current.next = &cTag{aliasTag: alias, hasAlias: hasAlias, hasTag: true} |
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current = current.next |
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} |
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switch t { |
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case diveTag: |
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current.isDive = true |
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// fmt.Println("DIVE CURRENT", current)
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continue |
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// cTag.diveTag = tag
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// tVals := &tagVals{tagVals: [][]string{{t}}}
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// cTag.tags = append(cTag.tags, tVals)
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// return true
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case omitempty: |
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current.isOmitEmpty = true |
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continue |
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case structOnlyTag: |
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current.isStructOnly = true |
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continue |
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case noStructLevelTag: |
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current.isNoStructLevel = true |
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continue |
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case existsTag: |
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current.exists = true |
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continue |
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default: |
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// if a pipe character is needed within the param you must use the utf8Pipe representation "0x7C"
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orVals := strings.Split(t, orSeparator) |
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// // if no or values
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// if len(orVals) == 1 {
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// current.fn, ok = v.validationFuncs[t]
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// if !ok {
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// panic(strings.TrimSpace(fmt.Sprintf(undefinedValidation, fieldName)))
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// }
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// } else {
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// tagVal := &tagVals{isAlias: isAlias, isOrVal: len(orVals) > 1, tagVals: make([][]string, len(orVals))}
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// cTag.tags = append(cTag.tags, tagVal)
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// var key string
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// var param string
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for j := 0; j < len(orVals); j++ { |
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// for i, val := range orVals {
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// if v.hasAliasValidators {
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// // check map for alias and process new tags, otherwise process as usual
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// if tagsVal, ok := v.aliasValidators[orVals[j]]; ok {
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// if i == 0 {
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// firstCtag, current = v.parseFieldTagsRecursive(tagsVal, fieldName, orVals[j], true)
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// } else {
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// current.next, current = v.parseFieldTagsRecursive(tagsVal, fieldName, orVals[j], true)
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// }
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// continue
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// // tmpCtag, lastCtag = v.parseFieldTagsRecursive(tagsVal, fieldName, t, true)
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// // if ctag == nil {
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// // ctag = tmpCtag
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// // } else {
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// // ctag.next = tmpCtag
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// // }
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// }
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// }
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vals := strings.SplitN(orVals[j], tagKeySeparator, 2) |
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if noAlias { |
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alias = vals[0] |
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current.aliasTag = alias |
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} else { |
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// alias = t
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current.actualAliasTag = t |
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} |
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if j > 0 { |
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current.next = &cTag{aliasTag: alias, actualAliasTag: current.actualAliasTag, hasAlias: hasAlias, hasTag: true} |
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current = current.next |
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// current.next=&
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} |
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// else{
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current.tag = vals[0] |
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if len(current.tag) == 0 { |
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panic(strings.TrimSpace(fmt.Sprintf(invalidValidation, fieldName))) |
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} |
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// _, found := v.validationFuncs[current.tag]
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// fmt.Println("TAG", current.tag, "FOund:", found)
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if current.fn, ok = v.validationFuncs[current.tag]; !ok { |
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// fmt.Println("I'm panicing!")
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panic(strings.TrimSpace(fmt.Sprintf(undefinedValidation, fieldName))) |
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} |
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current.isOrVal = len(orVals) > 1 |
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// }
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// tagVal.tag = key
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// if isAlias {
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// tagVal.tag = alias
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// }
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// if key == blank {
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// panic(strings.TrimSpace(fmt.Sprintf(invalidValidation, fieldName)))
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// }
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if len(vals) > 1 { |
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current.param = strings.Replace(strings.Replace(vals[1], utf8HexComma, ",", -1), utf8Pipe, "|", -1) |
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} |
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// tagVal.tagVals[i] = []string{key, param}
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} |
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// }
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} |
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} |
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// if depth > 0 {
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// // _, found := v.aliasValidators[t]
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// fmt.Println("WTF", len(tags), tags, firstCtag, current)
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// panic("WTF")
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// }
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return |
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} |
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