--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bmsd/co2meters.c Thu Oct 10 20:42:39 2019 +0200
@@ -0,0 +1,346 @@
+/**
+ * @file co2meters.c
+ * @brief Handle co2meters status
+ * @author Michiel Broek <mbroek at mbse dot eu>
+ *
+ * Copyright (C) 2019
+ *
+ * This file is part of the bms (Brewery Management System)
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * bms is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with ThermFerm; see the file COPYING. If not, write to the Free
+ * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+
+#include "bms.h"
+#include "xutil.h"
+#include "co2meters.h"
+#include "mysql.h"
+
+
+sys_co2meter_list *co2meters = NULL;
+
+extern int debug;
+extern sys_config Config;
+
+
+
+void co2meter_set(char *edge_node, char *alias, char *payload)
+{
+ struct json_object *jobj, *val, *sensor;
+ sys_co2meter_list *co2meter, *tmpp;
+ bool new_co2meter = true;
+
+// fprintf(stdout, "co2meter_set: %s/%s %s\n", edge_node, alias, payload);
+
+ /*
+ * Search co2meter record in the memory array and use it if found.
+ */
+ if (co2meters) {
+ for (tmpp = co2meters; tmpp; tmpp = tmpp->next) {
+ if ((strcmp(tmpp->alias, alias) == 0) && (strcmp(tmpp->node, edge_node) == 0)) {
+ new_co2meter = false;
+ co2meter = tmpp;
+ break;
+ }
+ }
+ }
+
+// printf("new_co2meter %s\n", new_co2meter ? "true":"false");
+
+ /*
+ * Allocate new co2meter if not yet known.
+ */
+ if (new_co2meter) {
+ co2meter = (sys_co2meter_list *)malloc(sizeof(sys_co2meter_list));
+ memset(co2meter, 0, sizeof(sys_co2meter_list));
+ co2meter->alias = xstrcpy(alias);
+ co2meter->node = xstrcpy(edge_node);
+ co2meter->mode = xstrcpy((char *)"OFF");
+ }
+
+ if (! co2meter->online) {
+ co2meter->online = true;
+ syslog(LOG_NOTICE, "Online co2meter %s/%s mode %s", edge_node, alias, co2meter->mode);
+ }
+
+ /*
+ * Process the JSON formatted payload.
+ * Update only the fields that are found in the payload.
+ */
+ jobj = json_tokener_parse(payload);
+
+ if (json_object_object_get_ex(jobj, "uuid", &val)) {
+ if (co2meter->uuid)
+ free(co2meter->uuid);
+ co2meter->uuid = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(jobj, "mode", &val)) {
+ if (co2meter->mode) {
+ if (strcmp(co2meter->mode, (char *)json_object_get_string(val))) {
+ syslog(LOG_NOTICE, "Change mode co2meter %s/%s: %s to %s", edge_node, alias, co2meter->mode, (char *)json_object_get_string(val));
+ }
+ free(co2meter->mode);
+ }
+ co2meter->mode = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(jobj, "temperature", &sensor)) {
+ if (json_object_object_get_ex(sensor, "address", &val)) {
+ if (co2meter->temperature_address)
+ free(co2meter->temperature_address);
+ co2meter->temperature_address = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(sensor, "state", &val)) {
+ if (co2meter->temperature_state)
+ free(co2meter->temperature_state);
+ co2meter->temperature_state = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(sensor, "temperature", &val)) {
+ co2meter->temperature = json_object_get_double(val);
+ }
+ }
+ if (json_object_object_get_ex(jobj, "pressure", &sensor)) {
+ if (json_object_object_get_ex(sensor, "state", &val)) {
+ if (co2meter->pressure_state)
+ free(co2meter->pressure_state);
+ co2meter->pressure_state = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(sensor, "channel", &val)) {
+ co2meter->pressure_channel = json_object_get_int(val);
+ }
+ if (json_object_object_get_ex(sensor, "voltage", &val)) {
+ co2meter->pressure_voltage = json_object_get_double(val);
+ }
+ if (json_object_object_get_ex(sensor, "zero", &val)) {
+ co2meter->pressure_zero = json_object_get_double(val);
+ }
+ if (json_object_object_get_ex(sensor, "bar", &val)) {
+ co2meter->pressure_bar = json_object_get_double(val);
+ }
+ }
+ json_object_put(jobj);
+
+// co2meter_dump(co2meter);
+
+ if (new_co2meter) {
+ if (co2meters == NULL) {
+ co2meters = co2meter;
+ } else {
+ for (tmpp = co2meters; tmpp; tmpp = tmpp->next) {
+ if (tmpp->next == NULL) {
+ tmpp->next = co2meter;
+ break;
+ }
+ }
+ }
+ co2meter_mysql_insert(co2meter);
+ } else {
+ co2meter_mysql_update(co2meter);
+ }
+
+}
+
+
+
+/*
+ * With DBIRTH all active co2meters are publishd in an array.
+ */
+void co2meter_birth_data(char *topic, char *payload)
+{
+ char *message_type, *edge_node, *alias;
+ struct json_object *jobj, *val, *metric, *units, *unit;
+ int arraylen;
+
+ strtok(topic, "/"); // ignore namespace
+ strtok(NULL, "/");
+ message_type = strtok(NULL, "/");
+ edge_node = strtok(NULL, "/\0");
+ alias = strtok(NULL, "/\0");
+
+ if ((alias == NULL) && (strcmp("DBIRTH", message_type) == 0)) {
+ /*
+ * Global initial DBIRTH message with array of co2meters.
+ */
+ jobj = json_tokener_parse(payload);
+
+ if (json_object_object_get_ex(jobj, "metric", &metric)) {
+ if (json_object_object_get_ex(metric, "units", &units)) {
+ arraylen = json_object_array_length(units);
+ for (int i = 0; i < arraylen; i++) {
+ /*
+ * Parse the array of units
+ */
+ unit = json_object_array_get_idx(units, i);
+
+ if (json_object_object_get_ex(unit, "alias", &val)) {
+ if (alias)
+ free(alias);
+ alias = xstrcpy((char *)json_object_get_string(val));
+ co2meter_set(edge_node, alias, (char *)json_object_to_json_string_ext(unit, 0));
+ free(alias);
+ alias = NULL;
+ }
+ }
+ }
+ }
+ json_object_put(jobj);
+ return;
+ }
+
+ /*
+ * The rest are errors.
+ */
+ printf("ERROR co2meter_birth_data: %s %s %s\n", message_type, edge_node, alias);
+}
+
+
+
+void co2meter_log(char *topic, char *payload)
+{
+ char *edge_node, *alias, *line, buf[65], *logfile;
+ struct json_object *jobj, *val, *metric;
+ co2pressure_log *log;
+ struct tm *mytime;
+ time_t timestamp;
+ FILE *fp;
+
+ strtok(topic, "/"); // ignore namespace
+ strtok(NULL, "/"); // group_id
+ strtok(NULL, "/"); // message_type
+ edge_node = strtok(NULL, "/\0");
+ alias = strtok(NULL, "/\0");
+
+ log = (co2pressure_log *)malloc(sizeof(co2pressure_log));
+ memset(log, 0, sizeof(co2pressure_log));
+
+ log->co2meter_node = xstrcpy(edge_node);
+ log->co2meter_alias = xstrcpy(alias);
+ jobj = json_tokener_parse(payload);
+
+ timestamp = time(NULL);
+ log->datetime = malloc(21);
+ mytime = localtime(×tamp);
+ snprintf(log->datetime, 20, "%04d-%02d-%02d %02d:%02d:%02d",
+ mytime->tm_year + 1900, mytime->tm_mon + 1, mytime->tm_mday, mytime->tm_hour, mytime->tm_min, mytime->tm_sec);
+
+ if (json_object_object_get_ex(jobj, "metric", &metric)) {
+
+/* if (json_object_object_get_ex(metric2, "uuid", &val)) {
+ if (strcmp((char *)"(null)", json_object_get_string(val)))
+ log->product_uuid = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(metric2, "code", &val)) {
+ if (strcmp((char *)"(null)", json_object_get_string(val)))
+ log->product_code = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(metric2, "name", &val)) {
+ if (strcmp((char *)"(null)", json_object_get_string(val)))
+ log->product_name = xstrcpy((char *)json_object_get_string(val));
+ }
+*/
+ if (json_object_object_get_ex(metric, "co2meter_uuid", &val)) {
+ if (strcmp((char *)"(null)", json_object_get_string(val)))
+ log->co2meter_uuid = xstrcpy((char *)json_object_get_string(val));
+ }
+ if (json_object_object_get_ex(metric, "temperature", &val)) {
+ log->temperature = json_object_get_double(val);
+ }
+ if (json_object_object_get_ex(metric, "pressure", &val)) {
+ log->pressure = json_object_get_double(val);
+ }
+ }
+ json_object_put(jobj);
+
+ /*
+ * Because co2meters are not so smart and don't hold product information
+ * search the missing pieces in the database.
+ */
+ // log->co2meter_uuid is the search, fill:
+ // log->product_uuid log->product_name log->product_code
+ // log->co2meter_node log->co2meter_alias
+
+ /*
+ * Build csv log line
+ */
+ line = xstrcpy(log->datetime);
+ line = xstrcat(line, (char *)",");
+ snprintf(buf, 64, "%.3f", log->temperature);
+ line = xstrcat(line, buf);
+ line = xstrcat(line, (char *)",");
+ snprintf(buf, 64, "%.3f", log->pressure);
+ line = xstrcat(line, buf);
+ line = xstrcat(line, (char *)",");
+ line = xstrcat(line, log->co2meter_uuid);
+
+ /*
+ * Build logfile name
+ */
+ logfile = xstrcpy(Config.web_root);
+ logfile = xstrcat(logfile, (char *)"/log/co2pressure/");
+ logfile = xstrcat(logfile, log->product_code);
+ logfile = xstrcat(logfile, (char *)" ");
+ logfile = xstrcat(logfile, log->product_name);
+ logfile = xstrcat(logfile, (char *)".log");
+
+ if (debug)
+ fprintf(stdout, "%s %s\n", logfile, line);
+
+ fp = fopen(logfile, "a");
+ if (fp) {
+ fprintf(fp, "%s\n", line);
+ fclose(fp);
+ } else {
+ syslog(LOG_NOTICE, "cannot append to `%s'", logfile);
+ }
+
+ free(logfile);
+ logfile = NULL;
+ free(line);
+ line = NULL;
+
+ if (log->datetime)
+ free(log->datetime);
+ if (log->product_uuid )
+ free(log->product_uuid );
+ if (log->product_code )
+ free(log->product_code );
+ if (log->product_name )
+ free(log->product_name );
+ if (log->co2meter_uuid)
+ free(log->co2meter_uuid);
+ if (log->co2meter_node)
+ free(log->co2meter_node);
+ if (log->co2meter_alias)
+ free(log->co2meter_alias);
+ free(log);
+}
+
+
+
+void co2meter_dump(sys_co2meter_list *co2meter)
+{
+ if (debug) {
+ printf("uuid %s\n", co2meter->uuid);
+ printf("alias %s\n", co2meter->alias);
+ printf("node %s\n", co2meter->node);
+ printf("online %s\n", co2meter->online ? "yes":"no");
+ printf("product %s / %s\n", co2meter->beercode, co2meter->beername);
+ printf("Temperature %-16s %10s %8.3f\n", co2meter->temperature_address, co2meter->temperature_state, co2meter->temperature);
+ printf("Pressure %10s %d %.3f %.3f %.3f\n", co2meter->pressure_state, co2meter->pressure_channel,
+ co2meter->pressure_voltage, co2meter->pressure_zero, co2meter->pressure_bar);
+ printf("mode %s\n", co2meter->mode);
+ }
+}
+
+