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#!/usr/bin/env python
# Copyright 2021 Max H. Parke KA1RBI
#
# This file is part of OP25
#
# OP25 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 3, or (at your option)
# any later version.
#
# OP25 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 OP25; see the file COPYING. If not, write to the Free
# Software Foundation, Inc., 51 Franklin Street, Boston, MA
# 02110-1301, USA.
import sys
import os
import time
import json
import threading
import traceback
import sqlite3
import op25
from gnuradio import gr
from emap import events_map, cc_events
_def_db_file = 'op25-data.db'
_def_msgq_size = 100
_def_uncommitted = 25
class du_queue_runner(threading.Thread):
def __init__(self, msgq, **kwds):
threading.Thread.__init__ (self, **kwds)
self.setDaemon(1)
self.msgq = msgq
self.db_filename = _def_db_file
self.conn = None
self.cursor = None
self.failed = False
self.keep_running = True
self.uncommitted = 0
self.max_q = 0
self.next_t = time.time()
self.start()
def run(self):
self.connect()
while self.keep_running and not self.failed:
self.max_q = max(self.max_q, self.msgq.count())
if time.time() > self.next_t:
self.next_t = time.time() + 2
msg = self.msgq.delete_head()
if self.failed or not self.keep_running:
break
self.insert_row(msg)
def disconnect(self):
self.conn.close()
self.cursor = None
self.conn = None
def connect(self):
self.conn = sqlite3.connect(self.db_filename)
self.cursor = self.conn.cursor()
def insert_row(self, msg):
if self.cursor is None or self.conn is None:
return
d = json.loads(msg.to_string())
try:
self.cursor.execute(d['command'], d['row'])
# optimization: only commit when no more msgs queued (or limit reached)
if self.uncommitted < _def_uncommitted and self.msgq.count():
self.uncommitted += 1
else:
self.conn.commit()
self.uncommitted = 0
except:
self.failed = True
traceback.print_exc(limit=None, file=sys.stdout)
traceback.print_exc(limit=None, file=sys.stderr)
sys.stderr.write('sql_dbi: db logging stopped due to error (or db not initialized)\n')
# TODO - add error recovery?
class sql_dbi:
def __init__(self, db_filename=_def_db_file):
self.conn = None
self.cursor = None
self.db_filename = db_filename
self.db_msgq = gr.msg_queue(_def_msgq_size)
self.q_runner = du_queue_runner(self.db_msgq)
self.db_msgq_overflow = 0
self.sql_commands = {
'calls': 'INSERT INTO calls(time, sysid, options, tgid, srcid)',
'joins': 'INSERT INTO joins(time, sysid, rv, tgid, srcid)',
'create_data_store': '''CREATE TABLE data_store (
id INTEGER PRIMARY KEY,
time REAL NOT NULL,
cc_event INTEGER NOT NULL,
opcode INTEGER NOT NULL,
sysid INTEGER NOT NULL,
mfrid INTEGER NULL,
p INTEGER NULL,
p2 INTEGER NULL,
p3 INTEGER NULL,
wacn INTEGER NULL,
frequency INTEGER NULL,
tgid INTEGER NULL,
tgid2 INTEGER NULL,
suid INTEGER NULL,
suid2 INTEGER NULL,
tsbk_sysid INTEGER NULL,
FOREIGN KEY(cc_event) REFERENCES event_keys (id))''',
'create_event_keys': '''CREATE TABLE event_keys (
id INTEGER PRIMARY KEY,
tag TEXT NOT NULL )''',
'create_sysid': '''CREATE TABLE sysid_tags (
id INTEGER PRIMARY KEY,
sysid INTEGER NOT NULL,
tag TEXT)''',
'create_tgid': '''CREATE TABLE tgid_tags (
id INTEGER PRIMARY KEY,
rid INTEGER NOT NULL,
sysid INTEGER NOT NULL,
tag TEXT,
priority INTEGER)''',
'create_unit_id': '''CREATE TABLE unit_id_tags (
id INTEGER PRIMARY KEY,
rid INTEGER NOT NULL,
sysid INTEGER NOT NULL,
tag TEXT,
priority INTEGER)''',
'create_2b_rv': '''CREATE TABLE loc_reg_resp_rv (
rv INTEGER NOT NULL,
tag TEXT NOT NULL)''',
'populate_2b_rv': '''INSERT INTO loc_reg_resp_rv(rv, tag) VALUES(0, "join")
INSERT INTO loc_reg_resp_rv(rv, tag) VALUES(1, "fail")
INSERT INTO loc_reg_resp_rv(rv, tag) VALUES(2, "deny")
INSERT INTO loc_reg_resp_rv(rv, tag) VALUES(3, "refuse")''',
'create_index': '''CREATE INDEX tgid_idx ON data_store(tgid)
CREATE INDEX tgid2_idx ON data_store(tgid2)
CREATE INDEX suid_idx ON data_store(suid)
CREATE INDEX suid2_idx ON data_store(suid2)
CREATE INDEX t_tgid_idx ON tgid_tags(rid)
CREATE INDEX t_unit_id_idx ON unit_id_tags(rid)'''
}
def disconnect(self):
self.conn.close()
self.cursor = None
self.conn = None
def connect(self):
self.conn = sqlite3.connect(self.db_filename)
self.cursor = self.conn.cursor()
def reset_db(self): # any data in db will be destroyed!
if os.access(self.db_filename, os.W_OK):
os.remove(self.db_filename)
self.conn = sqlite3.connect(self.db_filename)
self.cursor = self.conn.cursor()
self.execute('create_sysid')
self.execute('create_2b_rv')
self.execute_lines('populate_2b_rv')
self.execute('create_tgid')
self.execute('create_unit_id')
self.execute('create_event_keys')
self.execute('create_data_store')
self.execute_lines('create_index')
self.conn.commit()
self.populate_event_keys()
self.conn.close()
def execute(self, q):
self.cursor.execute(self.sql_commands[q])
self.conn.commit()
def execute_lines(self,q):
for line in self.sql_commands[q].split('\n'):
self.cursor.execute(line)
self.conn.commit()
def q(self, query):
if query != '-':
return self.cursor.execute(query)
lines = sys.stdin.read().strip().split('\n')
for query in lines:
self.cursor.execute(query)
self.conn.commit()
return None
def write(self, table_name, row):
# the number of elements in tuple 'row' must be two less than the number of table columns
curr_time = time.time()
row = (curr_time,) + row
qs = ['?'] * len(row)
command = self.sql_commands[table_name] + ' VALUES (' + ','.join(qs) + ')'
self.cursor.execute(command, row)
self.conn.commit()
def event(self, d):
if d['cc_event'] not in events_map:
return
if not os.access(_def_db_file, os.W_OK): # if DB not (yet) set up or not writable
return
mapl = events_map[d['cc_event']]
row = []
column_names = []
for col in mapl:
colname = col[0]
k = col[1]
# special mappings: unwrap tgid and srcid objects
if colname.startswith('tgid') and type(d[k]) is dict:
val = d[k]['tg_id']
elif colname.startswith('suid') and type(d[k]) is dict:
val = d[k]['unit_id']
elif type(d[k]) is not dict:
val = d[k]
else:
sys.stderr.write('value retrieval error %s %s %s\n' % (d['cc_event'], type(d[k]) is dict, k))
val = -1
# special mappings: map cc_event tag to an int
if colname == 'cc_event':
val = cc_events[d[k]]
# special mappings: map affiliation to int
if k == 'affiliation':
if d[k] == 'global':
val = 1
elif d[k] == 'local':
val = 0
else:
val = -1
# special mappings: map duration to int(msec).
if k == 'duration':
val = int(d[k] * 1000)
row.append(val)
column_names.append(colname)
command = "INSERT INTO data_store(%s) VALUES(%s)" % (','.join(column_names), ','.join(['?'] * len(row)))
js = json.dumps({'command': command, 'row': row})
if not self.db_msgq.full_p():
msg = gr.message().make_from_string(js, 0, 0, 0)
self.db_msgq.insert_tail(msg)
else:
self.db_msgq_overflow += 1
def import_tsv(self, argv):
cmd = argv[1]
filename = argv[2]
sysid = int(argv[3])
if cmd == 'import_tgid':
table = 'tgid_tags'
elif cmd == 'import_unit':
table = 'unit_id_tags'
elif cmd == 'import_sysid':
table = 'sysid_tags'
else:
print('%s unsupported' % (cmd))
return
q = 'INSERT INTO ' + table + '(rid, sysid, tag, priority) VALUES(?,?,?,?)'
if table == 'sysid_tags':
q = 'INSERT INTO ' + table + '(sysid, tag) VALUES(?,?)'
rows = []
with open(filename, 'r') as f:
lines = f.read().rstrip().split('\n')
for i in range(len(lines)):
a = lines[i].split('\t')
if i == 0: # check hdr
if not a[0].strip().isdigit():
continue
rid = int(a[0])
tag = a[1]
priority = 0 if len(a) < 3 else int(a[2])
s = (rid, sysid, tag, priority)
if table == 'sysid_tags':
s = (rid, tag)
rows.append(s)
if len(rows):
self.cursor.executemany(q, rows)
self.conn.commit()
def populate_event_keys(self):
d = {cc_events[k]:k for k in cc_events}
query = 'INSERT INTO event_keys(id, tag) VALUES(?, ?)'
for k in sorted(d.keys()):
self.cursor.execute(query, [k, d[k]])
self.conn.commit()
def main():
if len(sys.argv) > 1 and sys.argv[1] == 'reset_db':
sql_dbi().reset_db()
return
db1 = sql_dbi()
db1.connect()
if len(sys.argv) > 1 and sys.argv[1] == 'setup':
db1.cursor.execute(db1.sql_commands['create_tgid'])
db1.cursor.execute(db1.sql_commands['create_unit_id'])
db1.conn.commit()
db1.conn.close()
return
if len(sys.argv) > 1 and sys.argv[1] == 'execute_lines':
db1.execute_lines(sys.argv[2])
return
if len(sys.argv) > 1 and sys.argv[1] == 'execute':
db1.execute(sys.argv[2])
return
if len(sys.argv) > 1 and sys.argv[1] == 'insert':
db1.write('joins', (555, 5555, 5555555))
return
if len(sys.argv) > 3 and sys.argv[1].startswith('import_'):
db1.import_tsv(sys.argv)
return
if len(sys.argv) < 3 or sys.argv[1] != 'query':
print('nothing done')
return
result = db1.q(sys.argv[2])
if result:
for row in result:
print ('%s' % ('\t'.join([str(x) for x in row])))
if __name__ == '__main__':
main()
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