func (p *ClassicCounter) Consume(count int64, dimensions ...string) (err error) {
defer func() {
go p.updateQPSCounter(err != nil, dimensions...)
}()
if p.isReachedQPSUpperLimit(dimensions...) {
err = ERR_QPS_REACHED_UPPER_LIMIT.New(errors.Params{"counter": p.name, "dimensions": strings.Join(dimensions, ":")})
return
}
var maxQuota int64 = 0
if v, exist := p.getDimensionOption(LimitQuotaOption, dimensions...); exist {
maxQuota, _ = strconv.ParseInt(v, 10, 64)
}
if e := p.storage.Increase(p.name+_CONSUME_, count, maxQuota, dimensions...); e != nil {
if errors.IsErrCode(e) {
err = e
} else {
err = ERR_INCREASE_COUNT_FAILED.New(errors.Params{"counter": p.name, "err": e})
}
return
}
return
}
func (p *BaseComponent) hookMessagesAfter(inPortName string, message *ComponentMessage) (metadatas []MessageHookMetadata, err error) {
var hooks []string
var exist bool
if hooks, exist = p.inPortHooks[inPortName]; !exist {
return
}
newMetadatas := []MessageHookMetadata{}
for index, hookName := range hooks {
var hook MessageHook
if hook, err = hookFactory.Get(hookName); err != nil {
return
}
if ignored, matadata, e := hook.HookAfter(message.hooksMetaData, newMetadatas, &message.payload); e != nil {
if !errors.IsErrCode(e) {
e = ERR_MESSAGE_HOOK_ERROR.New(errors.Params{"err": e, "name": p.name, "port": inPortName, "index": index, "count": len(hooks), "hookName": hook.Name(), "event": "after"})
}
logs.Error(e)
if !ignored {
err = e
return
}
} else if !ignored {
matadata.HookName = hookName
newMetadatas = append(newMetadatas, matadata)
}
}
metadatas = newMetadatas
return
}
func (p *BaseComponent) hookMessagesBefore(inPortName string, message *ComponentMessage) (metadatas []MessageHookMetadata, err error) {
preMetadata := message.hooksMetaData
if preMetadata == nil || len(preMetadata) == 0 {
return
}
var hooks []string
var exist bool
if hooks, exist = p.inPortHooks[inPortName]; !exist {
err = ERR_INPORT_NOT_BIND_HOOK.New(errors.Params{"inPortName": inPortName})
return
}
newMetadatas := []MessageHookMetadata{}
for index, metadata := range preMetadata {
var hook MessageHook
if hook, err = hookFactory.Get(metadata.HookName); err != nil {
return
}
if ignored, matadata, e := hook.HookBefore(metadata, message.hooksMetaData, newMetadatas, &message.payload); e != nil {
if !errors.IsErrCode(e) {
e = ERR_MESSAGE_HOOK_ERROR.New(errors.Params{"err": e, "name": p.name, "port": inPortName, "index": index, "count": len(hooks), "hookName": hook.Name(), "event": "before"})
}
logs.Error(e)
if !ignored {
err = e
return
}
} else if !ignored {
newMetadatas = append(newMetadatas, matadata)
}
}
metadatas = newMetadatas
return
}
func (p *BaseComponent) handleComponentMessage(inPortName string, context interface{}, message ComponentMessage, callbacks ...OnReceiverMessageProcessed) {
atomic.AddInt64(&p.inboxMessage, 1)
defer atomic.AddInt64(&p.inboxMessage, -1)
defer func() {
if callbacks != nil {
for _, callback := range callbacks {
callback(context)
}
}
}()
var handler ComponentHandler
var err error
var exist bool
if message.graph == nil {
logs.Error(ERR_MESSAGE_GRAPH_IS_NIL.New())
return
}
if handler, exist = p.inPortHandler[inPortName]; !exist {
logs.Error(fmt.Sprintf("in port of %s not exist", inPortName))
}
var address MessageAddress
var nextGraphIndex int32 = 0
var content interface{}
var newMetadatas []MessageHookMetadata
if _, err = p.hookMessages(inPortName, HookEventBeforeCallHandler, &message); err != nil {
if address, exist = message.graph[ERROR_MSG_ADDR]; exist {
errCode := err.(errors.ErrCode)
message.payload.err.AddressId = message.currentGraphIndex
message.payload.err.Id = errCode.Id()
message.payload.err.Namespace = errCode.Namespace()
message.payload.err.Code = errCode.Code()
message.payload.err.Message = errCode.Error()
nextGraphIndex = ERROR_MSG_ADDR_INT //forword to the error port
} else {
return
}
} else {
if content, err = p.callHandlerWithRecover(handler, &message.payload); err != nil {
if !errors.IsErrCode(err) {
err = ERR_COMPONENT_HANDLER_RETURN_ERROR.New(errors.Params{"err": err, "name": p.name, "port": inPortName})
}
logs.Error(err)
if address, exist = message.graph[ERROR_MSG_ADDR]; exist {
errCode := err.(errors.ErrCode)
message.payload.err.AddressId = message.currentGraphIndex
message.payload.err.Id = errCode.Id()
message.payload.err.Namespace = errCode.Namespace()
message.payload.err.Code = errCode.Code()
message.payload.err.Message = errCode.Error()
nextGraphIndex = ERROR_MSG_ADDR_INT //forword to the error port
} else {
return
}
} else {
message.payload.SetContent(content)
if newMetadatas, err = p.hookMessages(inPortName, HookEventAfterCallHandler, &message); err != nil {
if address, exist = message.graph[ERROR_MSG_ADDR]; exist {
errCode := err.(errors.ErrCode)
message.payload.err.AddressId = message.currentGraphIndex
message.payload.err.Id = errCode.Id()
message.payload.err.Namespace = errCode.Namespace()
message.payload.err.Code = errCode.Code()
message.payload.err.Message = errCode.Error()
nextGraphIndex = ERROR_MSG_ADDR_INT //forword to the error port
} else {
return
}
}
if address, exist = message.graph[strconv.Itoa(int(message.currentGraphIndex)+1)]; exist {
nextGraphIndex = message.currentGraphIndex + 1 //forword the next component
} else {
return
}
}
}
message.hooksMetaData = newMetadatas
message.currentGraphIndex = nextGraphIndex
if nextInPortName, exist := p.inPortUrlIndex[address.Type+"|"+address.Url]; exist {
p.handleComponentMessage(nextInPortName, nil, message)
EventCenter.PushEvent(EVENT_BASE_COMPONENT_INTERNAL_MESSAGE, p.name, address, message)
} else {
p.sendMessage(address, message)
}
return
}