// Push message to the queue.
// Pushing message automatically enables auto expiration.
func (pq *PQueue) Push(params []string) iface.IResponse {
var err *common.ErrorResponse
var msgId string
var priority int64 = pq.config.MaxPriority - 1
var payload string = ""
for len(params) > 0 {
switch params[0] {
case PRM_ID:
params, msgId, err = common.ParseStringParam(params, 1, 128)
case PRM_PRIORITY:
params, priority, err = common.ParseInt64Params(params, 0, pq.config.MaxPriority-1)
case PRM_PAYLOAD:
params, payload, err = common.ParseStringParam(params, 1, 512*1024)
default:
return makeUnknownParamResponse(params[0])
}
if err != nil {
return err
}
}
if len(msgId) == 0 {
msgId = common.GenRandMsgId()
}
pq.config.LastPushTs = common.Uts()
pq.lock.Lock()
defer pq.lock.Unlock()
pq.msgSerialNumber += 1
msg := NewPQMessage(msgId, priority, pq.msgSerialNumber)
return pq.storeMessage(msg, payload)
}
// Set a user defined message lock timeout. Only locked message timeout can be set.
func (pq *PQueue) SetLockTimeout(params []string) iface.IResponse {
var err *common.ErrorResponse
var msgId string
var lockTimeout int64 = -1
for len(params) > 0 {
switch params[0] {
case PRM_ID:
params, msgId, err = common.ParseStringParam(params, 1, 128)
case PRM_LOCK_TIMEOUT:
params, lockTimeout, err = common.ParseInt64Params(params, 0, 24*1000*3600)
default:
return makeUnknownParamResponse(params[0])
}
if err != nil {
return err
}
}
if len(msgId) == 0 {
return common.ERR_MSG_ID_NOT_DEFINED
}
if lockTimeout < 0 {
return common.ERR_MSG_TIMEOUT_NOT_DEFINED
}
pq.lock.Lock()
defer pq.lock.Unlock()
msg, err := pq.unflightMessage(msgId)
if err != nil {
return err
}
msg.UnlockTs = common.Uts() + int64(lockTimeout)
pq.inFlightHeap.PushItem(msgId, msg.UnlockTs)
pq.database.StoreItem(pq.serviceId, msg)
return common.OK_RESPONSE
}
func getMessageIdOnly(params []string) (string, *common.ErrorResponse) {
var err *common.ErrorResponse
var msgId string
for len(params) > 0 {
switch params[0] {
case PRM_ID:
params, msgId, err = common.ParseStringParam(params, 1, 128)
default:
return "", makeUnknownParamResponse(params[0])
}
if err != nil {
return "", err
}
}
if len(msgId) == 0 {
return "", common.ERR_MSG_ID_NOT_DEFINED
}
return msgId, nil
}