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Add new file base system stats and MCI codes

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This commit is contained in:
Bryan Ashby 2017-09-09 11:48:43 -06:00
parent 1c2926fbe9
commit 3980c8acae
5 changed files with 91 additions and 4 deletions
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65
core/file_base_area.js
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@ -13,6 +13,7 @@ const Log = require('./logger.js').log;
const resolveMimeType = require('./mime_util.js').resolveMimeType;
const stringFormat = require('./string_format.js');
const wordWrapText = require('./word_wrap.js').wordWrapText;
const StatLog = require('./stat_log.js');
// deps
const _ = require('lodash');
@ -39,6 +40,10 @@ exports.changeFileAreaWithOptions = changeFileAreaWithOptions;
exports.scanFile = scanFile;
exports.scanFileAreaForChanges = scanFileAreaForChanges;
exports.getDescFromFileName = getDescFromFileName;
exports.getAreaStats = getAreaStats;
// for scheduler:
exports.updateAreaStatsScheduledEvent = updateAreaStatsScheduledEvent;
const WellKnownAreaTags = exports.WellKnownAreaTags = {
Invalid : '',
@ -856,4 +861,64 @@ function getDescFromFileName(fileName) {
const name = paths.basename(fileName, ext);
return _.upperFirst(name.replace(/[\-_.+]/g, ' ').replace(/\s+/g, ' '));
}
//
// Return an object of stats about an area(s)
//
// {
//
// totalFiles : <totalFileCount>,
// totalBytes : <totalByteSize>,
// areas : {
// <areaTag> : {
// files : <fileCount>,
// bytes : <byteSize>
// }
// }
// }
//
function getAreaStats(cb) {
FileDb.all(
`SELECT DISTINCT f.area_tag, COUNT(f.file_id) AS total_files, SUM(m.meta_value) AS total_byte_size
FROM file f, file_meta m
WHERE f.file_id = m.file_id AND m.meta_name='byte_size'
GROUP BY f.area_tag;`,
(err, statRows) => {
if(err) {
return cb(err);
}
if(!statRows || 0 === statRows.length) {
return cb(Errors.DoesNotExist('No file areas to acquire stats from'));
}
return cb(
null,
statRows.reduce( (stats, v) => {
stats.totalFiles = (stats.totalFiles || 0) + v.total_files;
stats.totalBytes = (stats.totalBytes || 0) + v.total_byte_size;
stats.areas = stats.areas || {};
stats.areas[v.area_tag] = {
files : v.total_files,
bytes : v.total_byte_size,
};
return stats;
}, {})
);
}
);
}
// method exposed for event scheduler
function updateAreaStatsScheduledEvent(args, cb) {
getAreaStats( (err, stats) => {
if(!err) {
StatLog.setNonPeristentSystemStat('file_base_area_stats', stats);
}
return cb(err);
});
}