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task.go
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task.go
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package stream
import (
"encoding/json"
"fmt"
"github.com/zenchainprotocol/zenchain-node/x/stream/types"
"github.com/tendermint/tendermint/libs/log"
)
type TaskConst int
const (
TaskStatusInvalid TaskConst = 0 + iota
TaskStatusSuccess
TaskStatusStatusFail
TaskStatusPartialSuccess
)
const (
// Phase 1
TaskPhase1NextActionRestart TaskConst = 100 + iota
TaskPhase1NextActionJumpNextBlock
TaskPhase1NextActionNewTask
TaskPhase1NextActionReturnTask
TaskPhase1NextActionUnknown
// Phase 2
TaskPhase2NextActionRestart TaskConst = 200 + iota
TaskPhase2NextActionJumpNextBlock
)
var TaskConstDesc = map[TaskConst]string{
TaskStatusInvalid: "STREAM_TASK_STATUS_INVALID",
TaskStatusSuccess: "STREAM_TASK_STATUS_SUCCESS",
TaskStatusStatusFail: "STREAM_TASK_STATUS_FAIL",
TaskStatusPartialSuccess: "STREAM_TASK_STATUS_PARTITIAL_SUCCESS",
TaskPhase1NextActionRestart: "STREAM_TASK_PHRASE1_NEXT_ACTION_RESTART",
TaskPhase1NextActionJumpNextBlock: "STREAM_TASK_PHRASE1_NEXT_ACTION_JUMP_NEXT_BLK",
TaskPhase1NextActionNewTask: "STREAM_TASK_PHRASE1_NEXT_ACTION_NEW_TASK",
TaskPhase1NextActionReturnTask: "STREAM_TASK_PHRASE1_NEXT_ACTION_RERUN_TASK",
TaskPhase1NextActionUnknown: "STREAM_TASK_PHRASE1_NEXT_ACTION_UNKNOWN",
TaskPhase2NextActionRestart: "STREAM_TASK_PHRASE2_NEXT_ACTION_RESTART",
TaskPhase2NextActionJumpNextBlock: "STREAM_TASK_PHRASE2_NEXT_ACTION_JUMP_NEXT_BLK",
}
type Task struct {
Height int64 `json:"Height"`
DoneMap map[Kind]bool `json:"DoneMap"`
UpdatedAt int64 `json:"UpdatedAt"`
}
func NewTask(blockHeight int64) *Task {
doneMap := make(map[Kind]bool)
return &Task{
Height: blockHeight,
DoneMap: doneMap,
}
}
func parseTaskFromJSON(s string) (*Task, error) {
st := Task{}
e := json.Unmarshal([]byte(s), &st)
return &st, e
}
func (t *Task) toJSON() string {
r, err := json.Marshal(t)
if err != nil {
panic(err)
}
return string(r)
}
func (t *Task) validAtomTaskCount() int {
cnt := 0
for _, done := range t.DoneMap {
if !done {
cnt++
}
}
return cnt
}
func (t *Task) GetStatus() TaskConst {
allTaskCnt := len(t.DoneMap)
unDoneCnt := t.validAtomTaskCount()
doneCnt := allTaskCnt - unDoneCnt
if doneCnt == allTaskCnt {
return TaskStatusSuccess
}
if doneCnt > 0 && doneCnt < allTaskCnt {
return TaskStatusPartialSuccess
}
if doneCnt == 0 {
return TaskStatusStatusFail
}
return TaskStatusInvalid
}
type TaskWithData struct {
*Task
dataMap map[Kind]types.IStreamData
}
type AtomTaskResult struct {
sType Kind
successDone bool
}
type AtomTaskRunner struct {
data types.IStreamData
engine types.IStreamEngine
sType Kind
result chan AtomTaskResult
logger log.Logger
}
func (r *AtomTaskRunner) run() {
taskSuccess := false
defer func() {
if e := recover(); e != nil {
r.logger.Error(fmt.Sprintf("AtomTaskRunner Panic: %+v", e))
r.result <- AtomTaskResult{sType: r.sType, successDone: false}
} else {
r.result <- AtomTaskResult{sType: r.sType, successDone: taskSuccess}
}
}()
if r.data == nil {
taskSuccess = true
} else {
r.engine.Write(r.data, &taskSuccess)
}
}