First draft of InfluxDB integration, for #534

code/components/jomjol_flowcontroll/CMakeLists.txt

@@ -2,6 +2,6 @@ FILE(GLOB_RECURSE app_sources ${CMAKE_CURRENT_SOURCE_DIR}/*.*)
 
 idf_component_register(SRCS ${app_sources}
                     INCLUDE_DIRS "."
-                    REQUIRES jomjol_tfliteclass jomjol_helper jomjol_controlcamera jomjol_mqtt jomjol_fileserver_ota jomjol_image_proc jomjol_wlan)
+                    REQUIRES jomjol_tfliteclass jomjol_helper jomjol_controlcamera jomjol_mqtt jomjol_influxdb jomjol_fileserver_ota jomjol_image_proc jomjol_wlan)
 
 

code/components/jomjol_flowcontroll/ClassFlowControll.cpp

@@ -49,6 +49,9 @@ std::string ClassFlowControll::doSingleStep(std::string _stepname, std::string _
     if ((_stepname.compare("[MQTT]") == 0) || (_stepname.compare(";[MQTT]") == 0)){
         _classname = "ClassFlowMQTT";
     }
+    if ((_stepname.compare("[InfluxDB]") == 0) || (_stepname.compare(";[InfluxDB]") == 0)){
+        _classname = "ClassFlowInfluxDB";
+    }
 
     for (int i = 0; i < FlowControll.size(); ++i)
         if (FlowControll[i]->name().compare(_classname) == 0){
@@ -73,6 +76,8 @@ std::string ClassFlowControll::TranslateAktstatus(std::string _input)
         return ("Digitalization of ROIs");
     if (_input.compare("ClassFlowMQTT") == 0)
         return ("Sending MQTT");
+    if (_input.compare("ClassFlowInfluxDB") == 0)
+        return ("Sending InfluxDB");
     if (_input.compare("ClassFlowPostProcessing") == 0)
         return ("Processing");
 
@@ -180,6 +185,8 @@ ClassFlow* ClassFlowControll::CreateClassFlow(std::string _type)
     }
     if (toUpper(_type).compare("[MQTT]") == 0)
         cfc = new ClassFlowMQTT(&FlowControll);
+    if (toUpper(_type).compare("[INFLUXDB]") == 0)
+        cfc = new ClassFlowInfluxDB(&FlowControll);
         
     if (toUpper(_type).compare("[POSTPROCESSING]") == 0)
     {

code/components/jomjol_flowcontroll/ClassFlowControll.h

@@ -9,6 +9,7 @@
 #include "ClassFlowCNNGeneral.h"
 #include "ClassFlowPostProcessing.h"
 #include "ClassFlowMQTT.h"
+#include "ClassFlowInfluxDB.h"
 #include "ClassFlowCNNGeneral.h"
 
 

code/components/jomjol_flowcontroll/ClassFlowInfluxDB.cpp

@@ -0,0 +1,161 @@
+#include <sstream>
+#include "ClassFlowInfluxDB.h"
+#include "Helper.h"
+#include "connect_wlan.h"
+
+#include "time_sntp.h"
+#include "interface_influxdb.h"
+#include "ClassFlowPostProcessing.h"
+
+#include <time.h>
+
+void ClassFlowInfluxDB::SetInitialParameter(void)
+{
+    uri = "";
+    database = "";
+    measurement = "";
+
+    OldValue = "";
+    flowpostprocessing = NULL;  
+    user = "";
+    password = "";   
+    previousElement = NULL;
+    ListFlowControll = NULL; 
+    disabled = false;
+    InfluxDBenable = false;
+}       
+
+ClassFlowInfluxDB::ClassFlowInfluxDB()
+{
+    SetInitialParameter();
+}
+
+ClassFlowInfluxDB::ClassFlowInfluxDB(std::vector<ClassFlow*>* lfc)
+{
+    SetInitialParameter();
+
+    ListFlowControll = lfc;
+    for (int i = 0; i < ListFlowControll->size(); ++i)
+    {
+        if (((*ListFlowControll)[i])->name().compare("ClassFlowPostProcessing") == 0)
+        {
+            flowpostprocessing = (ClassFlowPostProcessing*) (*ListFlowControll)[i];
+        }
+    }
+}
+
+ClassFlowInfluxDB::ClassFlowInfluxDB(std::vector<ClassFlow*>* lfc, ClassFlow *_prev)
+{
+    SetInitialParameter();
+
+    previousElement = _prev;
+    ListFlowControll = lfc;
+
+    for (int i = 0; i < ListFlowControll->size(); ++i)
+    {
+        if (((*ListFlowControll)[i])->name().compare("ClassFlowPostProcessing") == 0)
+        {
+            flowpostprocessing = (ClassFlowPostProcessing*) (*ListFlowControll)[i];
+        }
+    }
+}
+
+
+bool ClassFlowInfluxDB::ReadParameter(FILE* pfile, string& aktparamgraph)
+{
+    std::vector<string> zerlegt;
+
+    aktparamgraph = trim(aktparamgraph);
+
+    if (aktparamgraph.size() == 0)
+        if (!this->GetNextParagraph(pfile, aktparamgraph))
+            return false;
+
+    if (toUpper(aktparamgraph).compare("[INFLUXDB]") != 0) 
+        return false;
+
+    while (this->getNextLine(pfile, &aktparamgraph) && !this->isNewParagraph(aktparamgraph))
+    {
+        printf("while loop reading line: %s\n", aktparamgraph.c_str());
+        zerlegt = this->ZerlegeZeile(aktparamgraph);
+        if ((toUpper(zerlegt[0]) == "USER") && (zerlegt.size() > 1))
+        {
+            this->user = zerlegt[1];
+        }  
+        if ((toUpper(zerlegt[0]) == "PASSWORD") && (zerlegt.size() > 1))
+        {
+            this->password = zerlegt[1];
+        }               
+        if ((toUpper(zerlegt[0]) == "URI") && (zerlegt.size() > 1))
+        {
+            this->uri = zerlegt[1];
+        }
+        if (((toUpper(zerlegt[0]) == "MEASUREMENT")) && (zerlegt.size() > 1))
+        {
+            this->measurement = zerlegt[1];
+        }
+        if (((toUpper(zerlegt[0]) == "DATABASE")) && (zerlegt.size() > 1))
+        {
+            this->database = zerlegt[1];
+        }
+    }
+
+    if ((uri.length() > 0) && (database.length() > 0) && (measurement.length() > 0)) 
+    { 
+        printf("Init InfluxDB with uri: %s, measurement: %s, user: %s, password: %s\n", uri.c_str(), measurement.c_str(), user.c_str(), password.c_str());
+        InfluxDBInit(uri, database, measurement, user, password); 
+        InfluxDBenable = true;
+    } else {
+        printf("InfluxDB init skipped as we are missing some parameters");
+    }
+   
+    return true;
+}
+
+
+string ClassFlowInfluxDB::GetInfluxDBMeasurement()
+{
+    return measurement;
+}
+
+
+bool ClassFlowInfluxDB::doFlow(string zwtime)
+{
+    if (!InfluxDBenable)
+        return true;
+
+    std::string result;
+    std::string resulterror = "";
+    std::string resultraw = "";
+    std::string resultrate = "";
+    std::string resulttimestamp = "";
+    string zw = "";
+    string namenumber = "";
+
+    if (flowpostprocessing)
+    {
+        std::vector<NumberPost*>* NUMBERS = flowpostprocessing->GetNumbers();
+
+        for (int i = 0; i < (*NUMBERS).size(); ++i)
+        {
+            result =  (*NUMBERS)[i]->ReturnValue;
+            resultraw =  (*NUMBERS)[i]->ReturnRawValue;
+            resulterror = (*NUMBERS)[i]->ErrorMessageText;
+            resultrate = (*NUMBERS)[i]->ReturnRateValue;
+            resulttimestamp = (*NUMBERS)[i]->timeStamp;
+
+            namenumber = (*NUMBERS)[i]->name;
+            if (namenumber == "default")
+                namenumber = "value";
+            else
+                namenumber = namenumber + "/value";
+
+            if (result.length() > 0 && resulttimestamp.length() > 0)   
+                InfluxDBPublish(namenumber, result, resulttimestamp);
+        }
+    }
+   
+    OldValue = result;
+    
+    return true;
+}

code/components/jomjol_flowcontroll/ClassFlowInfluxDB.h

@@ -0,0 +1,31 @@
+#pragma once
+#include "ClassFlow.h"
+
+#include "ClassFlowPostProcessing.h"
+
+#include <string>
+
+class ClassFlowInfluxDB :
+    public ClassFlow
+{
+protected:
+    std::string uri, database, measurement;
+    std::string OldValue;
+	ClassFlowPostProcessing* flowpostprocessing;  
+    std::string user, password; 
+    bool InfluxDBenable;
+
+    void SetInitialParameter(void);        
+
+public:
+    ClassFlowInfluxDB();
+    ClassFlowInfluxDB(std::vector<ClassFlow*>* lfc);
+    ClassFlowInfluxDB(std::vector<ClassFlow*>* lfc, ClassFlow *_prev);
+
+    string GetInfluxDBMeasurement();
+
+    bool ReadParameter(FILE* pfile, string& aktparamgraph);
+    bool doFlow(string time);
+    string name(){return "ClassFlowInfluxDB";};
+};
+

code/components/jomjol_influxdb/CMakeLists.txt

@@ -0,0 +1,7 @@
+FILE(GLOB_RECURSE app_sources ${CMAKE_CURRENT_SOURCE_DIR}/*.*)
+
+idf_component_register(SRCS ${app_sources}
+                    INCLUDE_DIRS "."
+                    REQUIRES tflite-lib esp_http_client jomjol_logfile)
+
+

code/components/jomjol_influxdb/interface_influxdb.cpp

@@ -0,0 +1,114 @@
+#include "interface_influxdb.h"
+
+//#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG
+#include "esp_log.h"
+#include <time.h>
+#include "ClassLogFile.h"
+#include "esp_http_client.h"
+
+#define MAX_HTTP_OUTPUT_BUFFER 2048
+
+static const char *TAG_INTERFACEINFLUXDB = "interface_influxdb";
+
+std::string _influxDBURI;
+std::string _influxDBDatabase;
+std::string _influxDBMeasurement;
+std::string _influxDBUser;
+std::string _influxDBPassword;
+
+static esp_err_t http_event_handler(esp_http_client_event_t *evt)
+{
+    switch(evt->event_id)
+    {
+        case HTTP_EVENT_ERROR:
+            ESP_LOGE(TAG_INTERFACEINFLUXDB, "HTTP Client Error encountered");
+            break;
+        case HTTP_EVENT_ON_CONNECTED:
+            ESP_LOGI(TAG_INTERFACEINFLUXDB, "HTTP Client Connected");
+            break;
+        case HTTP_EVENT_HEADERS_SENT:
+            ESP_LOGV(TAG_INTERFACEINFLUXDB, "HTTP Client sent all request headers");
+            break;
+        case HTTP_EVENT_ON_HEADER:
+            ESP_LOGV(TAG_INTERFACEINFLUXDB, "Header: key=%s, value=%s", evt->header_key, evt->header_value);
+            break;
+        case HTTP_EVENT_ON_DATA:
+            ESP_LOGV(TAG_INTERFACEINFLUXDB, "HTTP Client data recevied: len=%d", evt->data_len);
+            break;
+        case HTTP_EVENT_ON_FINISH:
+            ESP_LOGI(TAG_INTERFACEINFLUXDB, "HTTP Client finished");
+            break;
+         case HTTP_EVENT_DISCONNECTED:
+            ESP_LOGI(TAG_INTERFACEINFLUXDB, "HTTP Client Disconnected");
+            break;
+    }
+    return ESP_OK;
+}
+
+void InfluxDBPublish(std::string _key, std::string _content, std::string _timestamp) {
+    char response_buffer[MAX_HTTP_OUTPUT_BUFFER] = {0};
+    esp_http_client_config_t http_config = {
+       .user_agent = "ESP32 Meter reader",
+       .method = HTTP_METHOD_POST,
+       .event_handler = http_event_handler,
+       .buffer_size = MAX_HTTP_OUTPUT_BUFFER,
+       .user_data = response_buffer
+    };
+
+    if (_influxDBUser.length() && _influxDBPassword.length()){
+       http_config.username = _influxDBUser.c_str();
+       http_config.password = _influxDBPassword.c_str();
+       http_config.auth_type = HTTP_AUTH_TYPE_BASIC;
+    }
+
+    // generate timestamp (TODO: parse result timestamp passed as string and convert it to POSIX timestamp?)
+    time_t now = time(NULL);
+    char nowTimestamp[21];
+    // pad with zeroes to get nanoseconds
+    sprintf(nowTimestamp,"%jd000000000", (intmax_t)now);
+    
+    std::string payload = _influxDBMeasurement + " " + _key + "=" + _content + " " + nowTimestamp;
+    payload.shrink_to_fit();
+    ESP_LOGI(TAG_INTERFACEINFLUXDB, "sending line to influxdb: %s\n", payload.c_str());
+
+    // use the default retention policy of the database
+    std::string apiURI = _influxDBURI + "/api/v2/write?bucket=" + _influxDBDatabase + "/";
+    apiURI.shrink_to_fit();
+    http_config.url = apiURI.c_str();
+    ESP_LOGI(TAG_INTERFACEINFLUXDB, "API URI: %s", apiURI.c_str());
+
+    esp_http_client_handle_t http_client = esp_http_client_init(&http_config);
+    ESP_LOGI(TAG_INTERFACEINFLUXDB, "client is initialized%s\n", "");
+
+    esp_http_client_set_header(http_client, "Content-Type", "text/plain");
+    ESP_LOGI(TAG_INTERFACEINFLUXDB, "header is set%s\n", "");
+
+    ESP_ERROR_CHECK(esp_http_client_set_post_field(http_client, payload.c_str(), payload.length()));
+    ESP_LOGI(TAG_INTERFACEINFLUXDB, "post payload is set%s\n", "");
+
+    esp_err_t err = ESP_ERROR_CHECK_WITHOUT_ABORT(esp_http_client_perform(http_client));
+
+    if( err == ESP_OK ) {
+      ESP_LOGI(TAG_INTERFACEINFLUXDB, "HTTP request was performed%s\n", "");
+      int status_code = esp_http_client_get_status_code(http_client);
+      ESP_LOGI(TAG_INTERFACEINFLUXDB, "HTTP status code %d\n", status_code);
+    } else {
+      ESP_LOGW(TAG_INTERFACEINFLUXDB, "HTTP request failed%s\n", "");
+    }
+    esp_http_client_cleanup(http_client);
+}
+
+
+void InfluxDBInit(std::string _uri, std::string _database, std::string _measurement, std::string _user, std::string _password){
+    _influxDBURI = _uri;
+    _influxDBDatabase = _database;
+    _influxDBMeasurement = _measurement;
+    _influxDBUser = _user;
+    _influxDBPassword = _password;
+ 
+}
+
+void InfluxDBdestroy() {
+}
+
+

code/components/jomjol_influxdb/interface_influxdb.h

@@ -0,0 +1,13 @@
+#ifndef INTERFACE_INFLUXDB_H
+#define INTERFACE_INFLUXDB_H
+
+#include <string>
+#include <map>
+#include <functional>
+
+void InfluxDBInit(std::string _influxDBURI, std::string _database, std::string _measurement, std::string _user, std::string _password);
+void InfluxDBdestroy();
+
+void InfluxDBPublish(std::string _key, std::string _content, std::string _timestamp);
+
+#endif //INTERFACE_INFLUXDB_H

code/platformio.ini

@@ -35,6 +35,7 @@ lib_deps =
   jomjol_time_sntp 
   jomjol_logfile 
   jomjol_mqtt
+  jomjol_influxdb
   jomjol_controlGPIO
 
 

sd-card/html/edit_config_param.html

@@ -636,6 +636,81 @@ textarea {
 				Password for MQTT authentication
 			</td>
 		</tr>
+
+		<tr>
+			<td colspan="4" style="padding-left: 20px;"><h4><input type="checkbox" id="Category_InfluxDB_enabled" value="1"  onclick = 'UpdateAfterCategoryCheck()' unchecked > InfluxDB</h4></td>
+		</tr> 		
+		<tr>
+			<td width="20px"  style="padding-left: 40px;">
+				<input type="checkbox" id="InfluxDB_Uri_enabled" value="1"  onclick = 'InvertEnableItem("InfluxDB", "Uri")' unchecked >
+			</td>
+			<td  width="200px">
+				<class id="InfluxDB_Uri_text" style="color:black;">Uri</class>
+			</td>
+			<td>
+				<input type="text" id="InfluxDB_Uri_value1">
+			</td>
+			<td style="font-size: 80%;">
+				URI of the HTTP interface to InfluxDB, without traililing slash, e.g. http://IP-Address:Port
+			</td>
+		</tr>
+                <tr>
+			<td width="20px"  style="padding-left: 40px;">
+				<input type="checkbox" id="InfluxDB_Database_enabled" value="1"  onclick = 'InvertEnableItem("InfluxDB", "Database")' unchecked >
+			</td>
+			<td  width="200px">
+				<class id="InfluxDB_Database_text" style="color:black;">Database</class>
+			</td>
+			<td>
+				<input type="text" id="InfluxDB_Database_value1">
+			</td>
+			<td style="font-size: 80%;">
+                                Database name in which to publish the read value.
+			</td>
+		</tr>
+		<tr>
+			<td width="20px"  style="padding-left: 40px;">
+				<input type="checkbox" id="InfluxDB_Measurement_enabled" value="1"  onclick = 'InvertEnableItem("InfluxDB", "Measurement")' unchecked >
+			</td>
+			<td  width="200px">
+				<class id="InfluxDB_Measurement_text" style="color:black;">Measurement</class>
+			</td>
+			<td>
+				<input type="text" id="InfluxDB_Measurement_value1">
+			</td>
+			<td style="font-size: 80%;">
+                                Measurement name to use to publish the read value.
+			</td>
+		</tr>
+		<tr>
+			<td width="20px"  style="padding-left: 40px;">
+				<input type="checkbox" id="InfluxDB_user_enabled" value="1"  onclick = 'InvertEnableItem("InfluxDB", "user")' unchecked >
+			</td>
+			<td  width="200px">
+				<class id="InfluxDB_user_text" style="color:black;">user</class>
+			</td>
+			<td>
+				<input type="text" id="InfluxDB_user_value1">
+			</td>
+			<td style="font-size: 80%;">
+				User for InfluxDB authentication
+			</td>
+		</tr>
+		<tr>
+			<td width="20px"  style="padding-left: 40px;">
+				<input type="checkbox" id="InfluxDB_password_enabled" value="1"  onclick = 'InvertEnableItem("InfluxDB", "password")' unchecked >
+			</td>
+			<td  width="200px">
+				<class id="InfluxDB_password_text" style="color:black;">password</class>
+			</td>
+			<td>
+				<input type="text" id="InfluxDB_password_value1">
+			</td>
+			<td style="font-size: 80%;">
+				Password for InfluxDB authentication
+			</td>
+		</tr>
+		
 	
 		<tr>
 			<td colspan="4" style="padding-left: 20px;"><h4>AutoTimer</h4></td>
@@ -678,7 +753,7 @@ textarea {
 				</h4>	
 			</td>
 		</tr> 	
-		
+
 		<!------------- GPIO0 begin ------------------>
 		<tr class="expert" class="GPIO_IO0 GPIO_item">
 			<td width="20px"  style="padding-left: 40px;">
@@ -1793,6 +1868,12 @@ function UpdateInput() {
 	WriteParameter(param, category, "MQTT", "user", true);	
 	WriteParameter(param, category, "MQTT", "password", true);
 	
+	WriteParameter(param, category, "InfluxDB", "Uri", true);	
+	WriteParameter(param, category, "InfluxDB", "Database", true);	
+	WriteParameter(param, category, "InfluxDB", "Measurement", true);	
+	WriteParameter(param, category, "InfluxDB", "user", true);	
+	WriteParameter(param, category, "InfluxDB", "password", true);	
+
 	WriteParameter(param, category, "GPIO", "IO0", true);
 	WriteParameter(param, category, "GPIO", "IO1", true);
 	WriteParameter(param, category, "GPIO", "IO3", true);
@@ -1847,6 +1928,7 @@ function ReadParameterAll()
 	category["Analog"]["enabled"] = document.getElementById("Category_Analog_enabled").checked;
 	category["Digits"]["enabled"] = document.getElementById("Category_Digits_enabled").checked;
 	category["MQTT"]["enabled"] = document.getElementById("Category_MQTT_enabled").checked;
+	category["InfluxDB"]["enabled"] = document.getElementById("Category_InfluxDB_enabled").checked;
 	category["GPIO"]["enabled"] = document.getElementById("Category_GPIO_enabled").checked;
 	
 	ReadParameter(param, "MakeImage", "LogImageLocation", true);
@@ -1886,6 +1968,11 @@ function ReadParameterAll()
 	ReadParameter(param, "MQTT", "user", true);	
 	ReadParameter(param, "MQTT", "password", true);	
 
+	ReadParameter(param, "InfluxDB", "Uri", true);	
+	ReadParameter(param, "InfluxDB", "Measurement", true);	
+	ReadParameter(param, "InfluxDB", "user", true);	
+	ReadParameter(param, "InfluxDB", "password", true);	
+
 	ReadParameter(param, "GPIO", "IO0", true);
 	ReadParameter(param, "GPIO", "IO1", true);
 	ReadParameter(param, "GPIO", "IO3", true);

sd-card/html/readconfigparam.js

@@ -124,7 +124,18 @@ function ParseConfig() {
      ParamAddValue(param, catname, "ClientID");
      ParamAddValue(param, catname, "user");
      ParamAddValue(param, catname, "password");
-     
+
+     var catname = "InfluxDB";
+     category[catname] = new Object(); 
+     category[catname]["enabled"] = false;
+     category[catname]["found"] = false;
+     param[catname] = new Object();
+     ParamAddValue(param, catname, "Uri");
+     ParamAddValue(param, catname, "Database");
+     ParamAddValue(param, catname, "Measurement");
+     ParamAddValue(param, catname, "user");
+     ParamAddValue(param, catname, "password");
+    
      var catname = "GPIO";
      category[catname] = new Object(); 
      category[catname]["enabled"] = false;