1 | # -*- coding: ISO-8859-1 -*- |
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2 | |
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3 | ################################## |
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4 | # @program smon |
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5 | # @description simulation monitor |
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6 | # @copyright Copyright â(c)2009 Centre National de la Recherche Scientifique CNRS. |
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7 | # All Rights Reservedâ |
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8 | # @svn_file $Id: repo_io.py 2599 2013-03-24 19:01:23Z jripsl $ |
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9 | # @version $Rev: 2599 $ |
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10 | # @lastrevision $Date: 2013-03-24 20:01:23 +0100 (Sun, 24 Mar 2013) $ |
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11 | # @license CeCILL (http://dods.ipsl.jussieu.fr/jripsl/smon/LICENSE) |
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12 | ################################## |
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13 | |
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14 | import sys |
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15 | import sqlite3 |
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16 | |
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17 | _conn=None |
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18 | timeout=1 |
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19 | |
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20 | def connect(): |
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21 | global _conn |
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22 | |
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23 | if _conn is not None: |
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24 | raise Exception() |
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25 | |
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26 | _conn=sqlite3.connect(":memory:",timeout) |
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27 | |
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28 | create_tables() |
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29 | |
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30 | def free(): |
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31 | global _conn |
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32 | |
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33 | if _conn is None: |
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34 | raise Exception() |
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35 | |
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36 | _conn.close() |
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37 | |
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38 | _conn=None |
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39 | |
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40 | def create_tables(): |
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41 | _conn.execute("create table simulation (id INTEGER PRIMARY KEY, name TEXT)") |
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42 | _conn.execute("create table message (id INTEGER PRIMARY KEY, simulation_id TEXT)") # TODO: check how to use INT datatype for simulation_id column |
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43 | |
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44 | def retrieve_simulation(name): |
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45 | c=_conn.cursor() |
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46 | |
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47 | c.execute("select name,id from simulation where name = ?",(name,)) |
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48 | |
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49 | rs=c.fetchone() |
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50 | |
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51 | if rs is None: |
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52 | raise Exception() |
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53 | |
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54 | return smon.types.Simulation(id=rs[1]) |
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55 | |
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56 | def delete_simulation(simulation): |
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57 | _conn.execute("delete from simulation where name = ?",(simulation.name,)) |
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58 | |
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59 | def create_simulation(simulation): |
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60 | _conn.execute("insert into simulation (name) values (?)",(simulation.name,)) |
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61 | |
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62 | def update_simulation_status(simulation): |
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63 | _conn.execute("update simulation set status=? where name = ?",(simulation.status,simulation.name)) |
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64 | |
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65 | def retrieve_messages(simulation): |
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66 | li=[] |
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67 | |
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68 | c=_conn.cursor() |
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69 | |
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70 | _conn.execute("select id from message where simulation_id = ?",(simulation.id,)) |
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71 | |
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72 | rs=c.fetchone() |
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73 | while rs is not None: |
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74 | li.append(smon.types.Message(id=rs[0])) |
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75 | rs=c.fetchone() |
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76 | |
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77 | return li |
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78 | |
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79 | def delete_messages(simulation): |
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80 | _conn.execute("delete from message where simulation_id = ?",(simulation.id,)) |
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81 | |
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82 | def create_message(message): |
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83 | _conn.execute("insert into message (simulation_id) values (?)",(message.simuid,)) |
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84 | |
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85 | def retrieve_last_message(simulation): |
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86 | c=_conn.cursor() |
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87 | |
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88 | _conn.execute("select id, content from message where simulation_id=? order by id desc limit 1",(simulation.id,)) |
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89 | |
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90 | rs=c.fetchone() |
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91 | |
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92 | if rs is None: |
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93 | raise Exception() |
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94 | |
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95 | return smon.types.Message(id=rs[0]) |
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