Files
readin/parse.js

244 lines
9.0 KiB
JavaScript

// import logit from './logit.js'
import { DateTime } from 'luxon'
import * as mongo from './mongo.js'
import { statistics } from'./readdata.js'
import { logit, logerror } from './logit.js'
let actualProps = []
let newProps = []
// Check lat/lon and convert to float
function checkLatLon(w) {
let loc = 0.0;
if (!((w === undefined) || (w == null) || (w == ''))) {
try {
loc = parseFloat(w)
} catch (e) {
logerror(`Math error with lat/lon, ${e}`)
}
}
return loc
}
// Check, if altitude is there. If so, use it, else use 0
function checkAltitude(alt) {
let altitude = 0;
if(!((alt === undefined) || (alt === ''))) {
try {
altitude = Math.floor(parseFloat(alt))
} catch (e) {
logerror(`Math error with altitude, ${e}`)
}
}
return altitude
}
// binary search fir sensor id in property array
const binarySearch = (arr, element, x) => {
let start = 0, end = arr.length - 1
// Iterate while start not meets end
while (start <= end) {
// Find the mid index
let mid = Math.floor((start + end) / 2)
// If element is present at mid, return True
if (arr[mid][element] === x) return mid
// Else look in left or right half accordingly
else if (arr[mid][element] < x)
start = mid + 1
else
end = mid - 1
}
return -1
}
const checkProperties = (item, mapvalues, typ, dt) => {
let now = DateTime.utc().toJSDate()
let entry
// read entry from actualprops
let idx = binarySearch(actualProps, '_id', item.sensor.id)
if (idx === -1) { // not in properties => new sensor
entry = buildNewEntry(item, typ, dt, now) // so build a new entry
} else {
entry = actualProps[idx] // get actual properties
// check for change of location
if (entry.location[0].id !== item.location.id) { // have got a new location
if (newProps.findIndex((obj) => {
return (obj.replaceOne.replacement.location[0].id === item.location.id)
}) === -1) {
const newloc = {
loc: {
type: "Point",
coordinates: [
checkLatLon(item.location.longitude),
checkLatLon(item.location.latitude)
]
},
id: item.location.id,
altitude: checkAltitude(item.location.altitude),
since: now,
exact_loc: item.location.exact_location,
indoor: item.location.indoor,
country: item.location.country
}
entry.location.splice(0, 0, newloc) // insert new location at pos 0 in location array
}
} else { // same location check for change in indoor or exact_location
if (entry.location[0].indoor !== item.location.indoor) {
entry.location[0].indoor = item.location.indoor // update indoor
}
if (entry.location[0].exact_loc !== item.location.exact_location) {
entry.location[0].exact_loc = item.location.exact_location // update exact_location
}
if (entry.location[0].country === '') {
entry.location[0].country = item.location.country // update country
}
}
// Check für new name
if (entry.name[0].name !== item.sensor.sensor_type.name) { // have got a new name
if (newProps.findIndex((obj) => {
return (obj.replaceOne.replacement.name[0].name === item.sensor.sensor_type.name)
}) === -1) {
let newname = {
name: item.sensor.sensor_type.name,
since: now
}
entry.name.splice(0, 0, newname)
}
}
}
// set new mapvalues
entry.values = mapvalues
delete entry.location_id
delete entry.last_seen
delete entry.since
// push this entry to the new proerties array
newProps.push({replaceOne: { filter: {_id: entry._id}, replacement: entry, upsert: true}})
}
const buildNewEntry = (item, typ, dt, now) => {
return {
_id: item.sensor.id,
type: typ,
name: [{
name: item.sensor.sensor_type.name,
since: now,
}],
location: [{
loc: {
type: "Point",
coordinates: [
checkLatLon(item.location.longitude),
checkLatLon(item.location.latitude)
]
},
id: item.location.id,
altitude: checkAltitude(item.location.altitude),
since: now,
exact_loc: item.location.exact_location,
indoor: item.location.indoor,
country: item.location.country
}]
}
}
const types = {
P1: 'pm', P2: 'pm', P0: 'pm',
temperature: 'thp', humidity: 'thp', pressure: 'thp',
noise_LAeq: 'noise', noise_LA_max: 'noise', noise_LA_min: 'noise',
counts_per_minute: 'radioactivity',
lat: 'gps'
};
function getType(typ) {
if(typ in types) {
return types[typ];
} else {
return 'unknown'
}
}
export const constructDBaseEntries = async (client, body, args) => {
logit(`Number of entries: ${body.length}`)
logit('Parsing ...')
let start = DateTime.now()
let allLines = {
pm: [], thp: [], noise: [], radioactivity: [], gps: [], unknown: []
}
let datalines = ''
actualProps = await mongo.getallProperties(client)
try {
for (let item of body) { // check all entries
const dt = item.timestamp.split(' ')
const datetime = new Date(dt[0] + 'T' + dt[1] + 'Z') // extract date of entry as utc
let values = {}
let ival = '' // fetch values
let typ = 'unknown'
let mapvalue = {}
for (let v of item.sensordatavalues) { // for all values
let vtyp = v.value_type; // extract value type
if (typ === 'unknown') { // extract measurement type
typ = getType(vtyp)
}
if(typ === 'noise') {
vtyp = vtyp.slice(6)
}
let val = v.value; // and value
let x
try {
x = parseFloat(val); // convert value to float
if (Number.isNaN(x)) {
x = -9999.9 // default if value is invalid or unknown
}
} catch (err) {
console.log('Math parse float error on value');
x = -9999.9 // default if value is invalid or unknown
}
values[vtyp] = x
ival += `${vtyp}=${x},`
// if noise sensor precalculate pow10
if (vtyp == 'LAeq') {
let e10 = Math.pow(10, x / 10)
values.E10tel_eq = e10
ival += `E10tel_eq=${e10},`
mapvalue.E10tel_eq = e10
}
mapvalue[vtyp] = x
}
let store = true
if(args.typ) {
if(!args.typ.includes(typ)) {
store = false
}
}
if (store) {
allLines[typ].push({sensorid: item.sensor.id, datetime: datetime, values: values})
datalines += `${typ},sid=${item.sensor.id} ${ival.slice(0,-1)} ${datetime.getTime()}\n`
mapvalue.timestamp = datetime
checkProperties(item, mapvalue, typ, datetime); // check if new or new location or new sensor
}
}
} catch (e) {
logerror(`constructDBaseEntries ${e}`);
}
// sort allLines on sensorID
for (const [k,v] of Object.entries(allLines)) {
allLines[k].sort((a, b) => {
if (a.sensorid < b.sensorid) {
return -1
} else if (a.sensorid > b.sensorid) {
return 1
} else {
return 0
}
})
}
statistics.parseTime = DateTime.now().diff(start, ['seconds']).toObject().seconds
logit(`Parse time: ${statistics.parseTime} sec`)
return [newProps, allLines, datalines]
}