elasticapm/instrumentation/packages/mysql.py

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from elasticapm.instrumentation.packages.dbapi2 import (
    ConnectionProxy,
    CursorProxy,
    DbApi2Instrumentation,
    extract_signature,
)
from elasticapm.utils import default_ports


class MySQLCursorProxy(CursorProxy):
    provider_name = "mysql"

    def extract_signature(self, sql):
        return extract_signature(sql)


class MySQLConnectionProxy(ConnectionProxy):
    cursor_proxy = MySQLCursorProxy

    def cursor(self, *args, **kwargs):
        c = super().cursor(*args, **kwargs)
        c._self_database = self._self_database
        return c


class MySQLInstrumentation(DbApi2Instrumentation):
    name = "mysql"

    instrument_list = [("MySQLdb", "connect")]

    def call(self, module, method, wrapped, instance, args, kwargs):
        destination_info = {
            "address": args[0] if len(args) else kwargs.get("host", "localhost"),
            "port": args[4] if len(args) > 4 else int(kwargs.get("port", default_ports.get("mysql"))),
        }
        proxy = MySQLConnectionProxy(wrapped(*args, **kwargs), destination_info=destination_info)
        proxy._self_database = kwargs.get("database", kwargs.get("db", ""))
        return proxy