mariadb insert

CsvLoader.py

@@ -6,6 +6,7 @@ import pika
 import logging
 import csv
 import re
+import mariadb
 
 from asebat.timefmt import timestamp_fmt as ts
 from asebat.timefmt import date_refmt as df
@@ -13,31 +14,57 @@ from asebat.config import set_config as setting
 
 
 class sqlraw():
-    def __init__(self, db, table):
-        self.db = db
-        self.table = table
-        self.sql = (
-            "INSERT IGNORE INTO " + db + "." + table +
+    def __init__(self, cfg):
+        self.config = {
+            'host': cfg.dbhost,
+            'user': cfg.dbuser,
+            'password': cfg.dbpass
+        }
+        self.dbname = cfg.dbname
+        self.table  = cfg.table
+        self.sql_head = (
+            "INSERT IGNORE INTO " + self.dbname + "." + self.table +
             " (`UnitName`,`ToolName`,`eventDT`,`BatteryLevel`,`Temperature`,`NodeNum`,"
             + "`Val0`,`Val1`,`Val2`,`Val3`,`Val4`,`Val5`,`Val6`,`Val7`," +
             "`Val8`,`Val9`,`ValA`,`ValB`,`ValC`,`ValD`,`ValE`,`ValF`) VALUES ")
 
     def add_data(self, values):
-        self.sql += '(' + '),('.join(values) + ');'
+        self.sql = self.sql_head + '(' + '),('.join(values) + ');'
+
+    def write_db(self):
+        try:
+            conn = mariadb.connect(**self.config, database=self.dbname)
+        except mariadb.Error as err:
+            logging.error("PID {:>5} >> Error to connet to DB {} - System error {}.".format(
+                os.getpid(), self.dbname, err))
+            sys.exit(1)
+
+        cur = conn.cursor()
+        try:
+            cur.execute(self.sql)
+        except mariadb.ProgrammingError as err:
+            logging.error("PID {:>5} >> Error write into DB {} - System error {}.".format(
+                os.getpid(), self.dbname, err))
+            print(err)
+            sys.exit(1)
+        
+        finally:
+            conn.close()
 
 
-def callback(ch, method, properties, body):  #body è di tipo byte
+def callback_ase(ch, method, properties, body, config):  #body è di tipo byte
     logging.info("PID {0:>5} >> Read message {1}".format(os.getpid(), body.decode("utf-8")))
     msg = body.decode("utf-8").split(";")
-    sql = sqlraw('ase', 'rawdata')
+    sql = sqlraw(config)
     stmlst = []
     commonData = '"{0}","{1}"'.format(msg[1],msg[2])
+    tooltype = msg[3]
     with open(msg[6], "r") as csvfile:
         lines = csvfile.read().splitlines()
         for line in lines:
+
             fields = line.split(";|;")
 
-            print(fields)
             if (mG501 := re.match(
                     r"^(\d\d\d\d\/\d\d\/\d\d\s\d\d:\d\d:\d\d);(.+);(.+)$",
                     fields[0]
@@ -54,11 +81,10 @@ def callback(ch, method, properties, body):  #body è di tipo byte
                     fields[1]
                 )
 
-
                 rowData = ',"{0}",{1},{2}'.format(df.dateTimeFmt(mG201.group(1)), mbtG201.group(1), mbtG201.group(2))
                 fields.pop(0)
                 fields.pop(0)
-
+            
             else:
                 continue
 
@@ -66,11 +92,25 @@ def callback(ch, method, properties, body):  #body è di tipo byte
             for field in fields:
                 nodeNum += 1
                 vals = field.split(";")
-                stmlst.append(commonData + rowData + ',{0},'.format(nodeNum) + ','.join('"{0}"'.format(d) for d in vals) + ',' + ','.join(['null']*(16-len(vals))))
-    sql.add_data(stmlst)
-    print(sql.sql)
+                stmlst.append(commonData + rowData + ',{0},'.format(nodeNum) + ','.join('"{0}"'.format(d) for d in vals) + ',' + ','.join(['null']*(config.valueNum-len(vals))))
 
-    ch.basic_ack(delivery_tag=method.delivery_tag)
+            if  (config.maxInsertRow < len(stmlst)):
+                sql.add_data(stmlst)
+                try:
+                    sql.write_db()
+                    stmlst.clear()
+                except:
+                    print("errore nell'inseriento")
+                    sys.exit(1)
+
+        if len(stmlst) > 0:
+            sql.add_data(stmlst)
+            try:
+                sql.write_db()
+                ch.basic_ack(delivery_tag=method.delivery_tag)
+            except:
+                print("errore nell'inseriento")
+                sys.exit(1)
 
 
 def main():
@@ -83,13 +123,18 @@ def main():
     )
 
     parameters = pika.URLParameters('amqp://' + cfg.mquser + ':' + cfg.mqpass +
-                                    '@' + cfg.mqhost + ':5672/%2F')
+                                    '@' + cfg.mqhost + ':' + cfg.mqport +'/%2F')
     connection = pika.BlockingConnection(parameters)
     channel = connection.channel()
     channel.queue_declare(queue=cfg.csv_queue, durable=True)
 
     channel.basic_qos(prefetch_count=1)
-    channel.basic_consume(queue=cfg.csv_queue, on_message_callback=callback)
+    channel.basic_consume(
+        queue=cfg.csv_queue,
+        on_message_callback=lambda ch, method, properties, body: callback_ase(ch, method, properties, body, config=cfg)
+    )
+
+    #channel.basic_consume(queue=cfg.csv_queue, on_message_callback=callback,arguments=cfg)
     try:
         channel.start_consuming()
     except KeyboardInterrupt: