/*List the information about one or more tasks.
The information is not in detai */
func ListTaskHandler(w http.ResponseWriter, r *http.Request) {
//the return value :response
var response util.HttpResponse
inputInfo, err := GetInfoFromRequest(&w, r)
if err != nil {
return
}
var userRequest PsRequest
userRequest.Init()
for thisFlag, flagValue := range inputInfo.Data {
switch thisFlag {
case "a":
userRequest.All, _ = strconv.ParseBool(flagValue)
case "l":
userRequest.Latest, _ = strconv.ParseBool(flagValue)
case "n":
userRequest.Name = flagValue
case "i":
userRequest.Image = flagValue
case "t":
userRequest.Type = flagValue
default:
response.Set(util.INVALID_INPUT, "invalid flag of wharf ps.")
io.WriteString(w, response.String())
return
}
}
//flags conflict
if userRequest.All && userRequest.Latest ||
userRequest.All && userRequest.Name != "" ||
userRequest.Latest && userRequest.Name != "" {
response.Set(util.INVALID_INPUT, "flags are conflicting with each other.")
io.WriteString(w, response.String())
return
}
var psIterm PsOutput
//task name is set || latest is set
if userRequest.Name != "" || userRequest.Latest {
if userRequest.Latest {
userRequest.Name = LatestTask
}
thisTask, exists := Tasks[userRequest.Name]
if !exists {
response.Set(util.INVALID_INPUT, `No such task with name of "`+userRequest.Name+`"`)
io.WriteString(w, response.String())
return
} else {
fillPSOutpusWithTask(&psIterm, &thisTask)
data, _ := json.Marshal(psIterm)
response.Set(util.OK, string(data))
io.WriteString(w, response.String())
return
}
}
//traverse all the task in Tasks
for _, thisTask := range Tasks {
response.Status = util.OK
if (userRequest.All == true || thisTask.Status == RUNNING) &&
(userRequest.Image == "" || thisTask.Cmd.ImageName == userRequest.Image) &&
(userRequest.Type == "" || thisTask.Cmd.TypeName == userRequest.Type) {
fillPSOutpusWithTask(&psIterm, &thisTask)
data, _ := json.Marshal(psIterm)
response.Append(string(data))
}
io.WriteString(w, response.String())
}
return
}
