source: trunk/Monitoring/Watch/watch @ 854

#!/usr/bin/env python
# -*- coding: ISO-8859-1 -*-

##################################
#  @program        smon
#  @description    simulation monitor
#  @copyright      Copyright “(c)2009 Centre National de la Recherche Scientifique CNRS. 
#                             All Rights Reserved”
#  @svn_file       $Id: watcher 2545 2013-02-01 09:58:10Z jripsl $
#  @version        $Rev: 2545 $
#  @lastrevision   $Date: 2013-02-01 10:58:10 +0100 (Fri, 01 Feb 2013) $
#  @license        CeCILL (http://dods.ipsl.jussieu.fr/jripsl/smon/LICENSE)
##################################

#from smon import dao
import pika
import base64
import json
import sys
import traceback
import smtplib
from email.mime.text import MIMEText

class Watcher():
        message_code_action_mapping = {"0000":["log","mail"],"1000":["log"],"2000":["log"],"3000":["log"],"9000":["log"],"9999":["log","mail"]}

        @classmethod
        def get_fake_progress_messages(cls):
                pass

        @classmethod
        def start(cls):
                #dao.insert_progress_messages(cls.get_fake_progress_messages())
                pass

        @classmethod
        def stop(cls):
                pass

        @classmethod
        def add(cls,message):
                pass

        @classmethod
        def mail_example(cls):
                me="jripsl@ipsl.jussieu.fr"
                you="jripsl@ipsl.jussieu.fr"
                body="Alarm"
                object="Supervisor"

                cls.mail(me,you,object,body)

        @classmethod
        def mail(cls):
                cls.mail_example()

        @classmethod
        def send_mail(cls,me,you,object,body):
                msg = MIMEText(body)
                msg['Subject'] = object
                msg['From'] = me
                msg['To'] = you

                # Send the message via our own SMTP server, but don't include the # envelope header.
                s = smtplib.SMTP('localhost')
                s.sendmail(me,[you], msg.as_string())
                s.quit()

        @classmethod
        def log(cls,message):

                with open("/home/jripsl/supervisor/log/supervisor.log", "a") as log_file:
                        log_file.write("%s %s\n"%(message["code"],message["jobid"]))

        @classmethod
        def execActions(cls,message):

                message_code=message["code"]

                for action in cls.message_code_action_mapping[message_code]:
                        proc_name=action

                        try:
                                getattr(cls, proc_name)(message)
                        except Exception,e:
                                traceback.print_exc()

                                raise Exception("WATCH-ERR002","procedure error (%s,%s)"%(proc_name,str(e)))

def main():

        """
        # parse args
        parser = argparse.ArgumentParser(prog='watcher')
        parser.add_argument('-v', dest='verbose',required=False,action='store_true')
        args = parser.parse_args()

        # check
        if not os.path.exists(SMON.smon_home):
                sys.exit(1)

        SMON.init_singleton()
        """

        connection = pika.BlockingConnection(pika.ConnectionParameters( host='localhost'))
        channel = connection.channel()

        #channel.queue_declare(queue='myqueue')

        print ' [*] Waiting for messages. To exit press CTRL+C'

        def callback(ch, method, properties, raw_msg):
                #
                #return

                base64_decoded_msg=base64.b64decode(raw_msg)

                # debug
                #print " [x] Received %s" % raw_msg
                #print " [x] Received %s (uudecoded)" % base64_decoded_msg 

                try:
                        message=json.loads(base64_decoded_msg)
                except Exception,e:
                        print base64_decoded_msg
                
                # message code based action
                Watcher.execActions(message)

        channel.basic_consume(callback, queue='myqueue', no_ack=True)

        channel.start_consuming()


        """
        SMON.free_singleton()
        """

if __name__ == '__main__':
        try:
                main()

                sys.exit(0)

        except Exception, e:

                traceback.print_exc()

                sys.exit(1)