| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package upsd |
| 4 | |
| 5 | import ( |
| 6 | "errors" |
| 7 | "strconv" |
| 8 | "strings" |
| 9 | ) |
| 10 | |
| 11 | func (c *Collector) collect() (map[string]int64, error) { |
| 12 | if c.conn == nil { |
| 13 | conn, err := c.establishConnection() |
| 14 | if err != nil { |
| 15 | return nil, err |
| 16 | } |
| 17 | c.conn = conn |
| 18 | } |
| 19 | |
| 20 | upsUnits, err := c.conn.upsUnits() |
| 21 | if err != nil { |
| 22 | if !errors.Is(err, errUpsdCommand) { |
| 23 | _ = c.conn.disconnect() |
| 24 | c.conn = nil |
| 25 | } |
| 26 | return nil, err |
| 27 | } |
| 28 | |
| 29 | c.Debugf("found %d UPS units", len(upsUnits)) |
| 30 | |
| 31 | mx := make(map[string]int64) |
| 32 | |
| 33 | c.collectUPSUnits(mx, upsUnits) |
| 34 | |
| 35 | return mx, nil |
| 36 | } |
| 37 | |
| 38 | func (c *Collector) establishConnection() (upsdConn, error) { |
| 39 | conn := c.newUpsdConn(c.Config) |
| 40 | |
| 41 | if err := conn.connect(); err != nil { |
| 42 | return nil, err |
| 43 | } |
| 44 | |
| 45 | if c.Username != "" && c.Password != "" { |
| 46 | if err := conn.authenticate(c.Username, c.Password); err != nil { |
| 47 | _ = conn.disconnect() |
| 48 | return nil, err |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | return conn, nil |
| 53 | } |
| 54 | |
| 55 | func (c *Collector) collectUPSUnits(mx map[string]int64, upsUnits []upsUnit) { |
| 56 | seen := make(map[string]bool) |
| 57 | |
| 58 | for _, ups := range upsUnits { |
| 59 | seen[ups.name] = true |
| 60 | c.Debugf("collecting metrics UPS '%s'", ups.name) |
| 61 | |
| 62 | if !c.upsUnits[ups.name] { |
| 63 | c.upsUnits[ups.name] = true |
| 64 | c.addUPSCharts(ups) |
| 65 | } |
| 66 | |
| 67 | writeVar(mx, ups, varBatteryCharge) |
| 68 | writeVar(mx, ups, varBatteryRuntime) |
| 69 | writeVar(mx, ups, varBatteryVoltage) |
| 70 | writeVar(mx, ups, varBatteryVoltageNominal) |
| 71 | |
| 72 | writeVar(mx, ups, varInputVoltage) |
| 73 | writeVar(mx, ups, varInputVoltageNominal) |
| 74 | writeVar(mx, ups, varInputCurrent) |
| 75 | writeVar(mx, ups, varInputCurrentNominal) |
| 76 | writeVar(mx, ups, varInputFrequency) |
| 77 | writeVar(mx, ups, varInputFrequencyNominal) |
| 78 | |
| 79 | writeVar(mx, ups, varOutputVoltage) |
| 80 | writeVar(mx, ups, varOutputVoltageNominal) |
| 81 | writeVar(mx, ups, varOutputCurrent) |
| 82 | writeVar(mx, ups, varOutputCurrentNominal) |
| 83 | writeVar(mx, ups, varOutputFrequency) |
| 84 | writeVar(mx, ups, varOutputFrequencyNominal) |
| 85 | |
| 86 | writeVar(mx, ups, varUpsLoad) |
| 87 | writeVar(mx, ups, varUpsRealPowerNominal) |
| 88 | writeVar(mx, ups, varUpsTemperature) |
| 89 | writeUpsLoadUsage(mx, ups) |
| 90 | writeUpsStatus(mx, ups) |
| 91 | } |
| 92 | |
| 93 | for name := range c.upsUnits { |
| 94 | if !seen[name] { |
| 95 | delete(c.upsUnits, name) |
| 96 | c.removeUPSCharts(name) |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | func writeVar(mx map[string]int64, ups upsUnit, v string) { |
| 102 | s, ok := ups.vars[v] |
| 103 | if !ok { |
| 104 | return |
| 105 | } |
| 106 | n, err := strconv.ParseFloat(s, 64) |
| 107 | if err != nil { |
| 108 | return |
| 109 | } |
| 110 | mx[prefix(ups)+v] = int64(n * varPrecision) |
| 111 | } |
| 112 | |
| 113 | func writeUpsLoadUsage(mx map[string]int64, ups upsUnit) { |
| 114 | if hasVar(ups.vars, varUpsRealPower) { |
| 115 | pow, _ := strconv.ParseFloat(ups.vars[varUpsRealPower], 64) |
| 116 | mx[prefix(ups)+"ups.load.usage"] = int64(pow * varPrecision) |
| 117 | return |
| 118 | } |
| 119 | |
| 120 | if !hasVar(ups.vars, varUpsLoad) || !hasVar(ups.vars, varUpsRealPowerNominal) { |
| 121 | return |
| 122 | } |
| 123 | load, err := strconv.ParseFloat(ups.vars[varUpsLoad], 64) |
| 124 | if err != nil { |
| 125 | return |
| 126 | } |
| 127 | nomPower, err := strconv.ParseFloat(ups.vars[varUpsRealPowerNominal], 64) |
| 128 | if err != nil || nomPower == 0 { |
| 129 | return |
| 130 | } |
| 131 | mx[prefix(ups)+"ups.load.usage"] = int64((load / 100 * nomPower) * varPrecision) |
| 132 | } |
| 133 | |
| 134 | // https://networkupstools.org/docs/developer-guide.chunked/ar01s04.html#_status_data |
| 135 | var upsStatuses = map[string]bool{ |
| 136 | "OL": true, |
| 137 | "OB": true, |
| 138 | "LB": true, |
| 139 | "HB": true, |
| 140 | "RB": true, |
| 141 | "CHRG": true, |
| 142 | "DISCHRG": true, |
| 143 | "BYPASS": true, |
| 144 | "CAL": true, |
| 145 | "OFF": true, |
| 146 | "OVER": true, |
| 147 | "TRIM": true, |
| 148 | "BOOST": true, |
| 149 | "FSD": true, |
| 150 | } |
| 151 | |
| 152 | func writeUpsStatus(mx map[string]int64, ups upsUnit) { |
| 153 | if !hasVar(ups.vars, varUpsStatus) { |
| 154 | return |
| 155 | } |
| 156 | |
| 157 | px := prefix(ups) + "ups.status." |
| 158 | |
| 159 | for st := range upsStatuses { |
| 160 | mx[px+st] = 0 |
| 161 | } |
| 162 | mx[px+"other"] = 0 |
| 163 | |
| 164 | for st := range strings.SplitSeq(ups.vars[varUpsStatus], " ") { |
| 165 | if _, ok := upsStatuses[st]; ok { |
| 166 | mx[px+st] = 1 |
| 167 | } else { |
| 168 | mx[px+"other"] = 1 |
| 169 | } |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | func hasVar(vars map[string]string, v string) bool { |
| 174 | _, ok := vars[v] |
| 175 | return ok |
| 176 | } |
| 177 | |
| 178 | func prefix(ups upsUnit) string { |
| 179 | return "ups_" + ups.name + "_" |
| 180 | } |