project BLF > class BBaseDaemon > method ApiValidateStatus
Description
Checks for all the daemon processes that were originally started (fcDaemon.DaemonProcessIDs), whether the physical process is still operational. The logic should 1. update the DaemonProcessIDs field with the right situation, and 2. update the DaemonStatus from "running" to "inactive" if none of the physical processes are available anymore.
Parameters
| oiReturnStatus | output | integer | Return status of the method. |
Internal usage
BLF
program code (program3/bbasedaemon.p)
/* Find information about the Daemon */
<Q-1 run DaemonInfo (all) (Read) (NoCache)
(input ?, (DaemonId)
input vcFcDaemonName, (DaemonName)
input ?, (DaemonStatus)
input ?, (DaemonStatusDiffersFrom)
output dataset tqDaemonInfo) in BBaseDaemon >
find first tqDaemonInfo where
tqDaemonInfo.tcDaemonName = vcFcDaemonName
no-error.
if not available tqDaemonInfo /*daemon is not yet configured*/
then return.
/*if the status is not running and not stopping, just return*/
if tqDaemonInfo.tcDaemonStatus <> {&DAEMONSTATUS-RUNNING} and
tqDaemonInfo.tcDaemonStatus <> {&DAEMONSTATUS-STOPPING}
then return.
assign vcProcessIds = tqDaemonInfo.tcDaemonProcessIDs.
do viFcCount1 = 1 to num-entries(vcProcessIds):
/*check if process is active on server*/
viProcessId = 0.
if num-entries (entry(viFcCount1,vcProcessIds),":") = 2
then assign vcProcessHostname = entry(1,entry(viFcCount1,vcProcessIds),":")
viProcessId = integer (entry(2,entry(viFcCount1,vcProcessIds),":")) no-error.
else assign viProcessId = integer(entry(viFcCount1,vcProcessIds)) no-error.
if viProcessId = 0 or
viProcessId = ?
then vlValid = no.
else do:
<M-23 run Main (input viSessionId (iiSessionId)) in TDaemonUtility>
<M-25 run ProcessIsValid
(input vcFcDaemonName (icDaemonName),
input vcProcessHostname (icProcessHostname),
input viProcessId (iiProcessNr),
input tqDaemonInfo.tcDaemonAppserver (icDaemonAppserverURL),
output vlValid (olValid),
output vcMessage (ocMessage),
output viFcReturnSuper (oiReturnStatus)) in TDaemonUtility>
run gipr_DeleteProcedure in vhFcComponent.
delete procedure vhFcComponent.
if vcMessage <> ""
then do:
<M-26 run SetMessage
(input vcMessage (icMessage),
input '' (icArguments),
input '' (icFieldName),
input '' (icFieldValue),
input 'D' (icType),
input 3 (iiSeverity),
input '' (icRowid),
input 'BLF-16':U (icFcMsgNumber),
input '' (icFcExplanation),
input '' (icFcIdentification),
input '' (icFcContext),
output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
end.
end.
if vlValid = false
then do:
assign entry(viFcCount1,vcProcessIds) = ''
vcMessage = trim(#T-22'The daemon process with id $1 was not found. The daemon status might have been changed to reflect the current situation.':255(5115)T-22#)
oiReturnStatus = 1.
<M-19 run SetMessage
(input vcMessage (icMessage),
input string(viProcessId) (icArguments),
input '' (icFieldName),
input '' (icFieldValue),
input 'W':U (icType),
input 3 (iiSeverity),
input '' (icRowid),
input 'BLF-15':U (icFcMsgNumber),
input '' (icFcExplanation),
input '' (icFcIdentification),
input '' (icFcContext),
output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
end.
end.
/*remove overhead comma's*/
assign vcProcessIds = trim(replace(vcProcessIds,',,',','),',').
/*if there are no processes left, uncontitional stop the daemon*/
if vcProcessIds = ''
then do:
<M-6 run ApiUnconditionalStop
(output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
if viFcReturnSuper <> 0
then assign oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.
end.
else if trim(vcProcessIds) <> trim(tqDaemonInfo.tcDaemonProcessIDs)
then do: /*update the processes list of the daemon*/
<M-7 run DataLoad
(input '':U (icRowids),
input tqDaemonInfo.tiDaemonId (icPkeys),
input '':U (icObjectIds),
input '' (icFreeform),
input false (ilKeepPrevious),
output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
if viFcReturnSuper <> 0
then assign oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.
find tfcDaemon where
tfcDaemon.DaemonId = tqDaemonInfo.tiDaemonId
no-error.
if not available tfcDaemon
then do :
assign oiReturnStatus = -3
vcMessage = trim(substitute(#T-13'Internal error: the &1 daemon cannot be loaded.':255(53)T-13#, trim(tqDaemonInfo.tcDaemonName))) + chr(10) +
trim(#T-14'Please contact your system administrator.':255(54)T-14#).
<M-8 run SetMessage
(input vcMessage (icMessage),
input '':U (icArguments),
input '':U (icFieldName),
input '':U (icFieldValue),
input 'E':U (icType),
input 1 (iiSeverity),
input '':U (icRowid),
input 'BLF-14':U (icFcMsgNumber),
input '' (icFcExplanation),
input '' (icFcIdentification),
input '' (icFcContext),
output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
Return.
end. /* if not available tfcDaemon */
assign tfcDaemon.DaemonProcessIDs = vcProcessIds
tfcDaemon.tc_Status = "C":U.
<M-10 run ValidateBC
(output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
if viFcReturnSuper <> 0
then assign oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.
<M-11 run AdditionalUpdates
(output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
if viFcReturnSuper <> 0
then assign oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.
<M-12 run DataSave
(output viFcReturnSuper (oiReturnStatus)) in BBaseDaemon>
if viFcReturnSuper <> 0
then assign oiReturnStatus = viFcReturnSuper.
if viFcReturnSuper < 0
then return.
end.
Sample code: how to call this method through RPCRequestService (QXtend Inbound)
define temp-table ttContext no-undo
field propertyQualifier as character
field propertyName as character
field propertyValue as character
index entityContext is primary unique
propertyQualifier
propertyName
index propertyQualifier
propertyQualifier.
define dataset dsContext for ttContext.
define variable vhContextDS as handle no-undo.
define variable vhExceptionDS as handle no-undo.
define variable vhServer as handle no-undo.
define variable vhInputDS as handle no-undo.
define variable vhInputOutputDS as handle no-undo.
define variable vhOutputDS as handle no-undo.
define variable vhParameter as handle no-undo.
/* Create context */
create ttContext.
assign ttContext.propertyName = "programName"
ttContext.propertyValue = "BBaseDaemon".
create ttContext.
assign ttContext.propertyName = "methodName"
ttContext.propertyValue = "ApiValidateStatus".
create ttContext.
assign ttContext.propertyName = "applicationId"
ttContext.propertyValue = "fin".
create ttContext.
assign ttContext.propertyName = "entity"
ttContext.propertyValue = "1000".
create ttContext.
assign ttContext.propertyName = "userName"
ttContext.propertyValue = "mfg".
create ttContext.
assign ttContext.propertyName = "password"
ttContext.propertyValue = "".
/* Connect the AppServer */
create server vhServer.
vhServer:connect("-URL <appserver-url>").
if not vhServer:connected()
then do:
message "Could not connect AppServer" view-as alert-box error title "Error".
return.
end.
/* Run */
assign vhContextDS = dataset dsContext:handle.
run program/rpcrequestservice.p on vhServer
(input-output dataset-handle vhContextDS by-reference,
output dataset-handle vhExceptionDS,
input dataset-handle vhInputDS by-reference,
input-output dataset-handle vhInputOutputDS by-reference,
output dataset-handle vhOutputDS).
/* Handle output however you want, in this example, we dump it to xml */
if valid-handle(vhExceptionDS)
then vhExceptionDS:write-xml("file", "Exceptions.xml", true).
if valid-handle(vhOutputDS)
then vhOutputDS:write-xml("file", "Output.xml", true).
/* Cleanup */
vhServer:disconnect().
assign vhServer = ?.
if valid-handle(vhInputDS)
then delete object vhInputDS.
if valid-handle(vhOutputDS)
then delete object vhOutputDS.
if valid-handle(vhExceptionDS)
then delete object vhExceptionDS.