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StatLog will now store for N days or N max/count items

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This commit is contained in:
Bryan Ashby 2016-09-01 23:41:20 -06:00
parent 9d46f23c66
commit 767bddcc4b
3 changed files with 58 additions and 17 deletions
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70
core/stat_log.js
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@ -50,6 +50,15 @@ class StatLog {
};
}
get KeepType() {
return {
Forever : 'forever',
Days : 'days',
Max : 'max',
Count : 'max',
};
}
get Order() {
return {
Timestamp : 'timestamp_asc',
@ -57,7 +66,7 @@ class StatLog {
TimestampDesc : 'timestamp_desc',
Random : 'random',
};
}
}
setNonPeristentSystemStat(statName, statValue) {
this.systemStats[statName] = statValue;
@ -129,33 +138,64 @@ class StatLog {
// the time "now" in the ISO format we use and love :)
get now() { return moment().format('YYYY-MM-DDTHH:mm:ss.SSSZ'); }
appendSystemLogEntry(logName, logValue, keepDays, cb) {
appendSystemLogEntry(logName, logValue, keep, keepType, cb) {
sysDb.run(
`INSERT INTO system_event_log (timestamp, log_name, log_value)
VALUES (?, ?, ?);`,
[ this.now, logName, logValue ],
() => {
//
// Handle keepDays
// Handle keep
//
if(-1 === keepDays) {
if(-1 === keep) {
if(cb) {
return cb(null);
}
return;
}
sysDb.run(
`DELETE FROM system_event_log
WHERE log_name = ? AND timestamp <= DATETIME("now", "-${keepDays} day");`,
[ logName ],
err => {
// cb optional - callers may fire & forget
if(cb) {
return cb(err);
}
}
);
switch(keepType) {
// keep # of days
case 'days' :
sysDb.run(
`DELETE FROM system_event_log
WHERE log_name = ? AND timestamp <= DATETIME("now", "-${keep} day");`,
[ logName ],
err => {
// cb optional - callers may fire & forget
if(cb) {
return cb(err);
}
}
);
break;
case 'count':
case 'max' :
// keep max of N/count
sysDb.run(
`DELETE FROM system_event_log
WHERE id IN(
SELECT id
FROM system_event_log
WHERE log_name = ?
ORDER BY id DESC
LIMIT -1 OFFSET ${keep}
);`,
[ logName ],
err => {
if(cb) {
return cb(err);
}
}
);
break;
case 'forever' :
default :
// nop
break;
}
}
);
}