text: from copy import deepcopy
  import os
  
  from ..utils.attrdict import AttrDict
  from ..utils.formats import asbool, get_env
  from .http import HttpConfig
  from .._hooks import Hooks
  
  
  class IntegrationConfig(AttrDict):
      """
      Integration specific configuration object.
  
      This is what you will get when you do::
  
          from ddtrace import config
  
          # This is an `IntegrationConfig`
          config.flask
  
          # `IntegrationConfig` supports both attribute and item accessors
          config.flask['service_name'] = 'my-service-name'
          config.flask.service_name = 'my-service-name'
      """
  
      def __init__(self, global_config, name, *args, **kwargs):
          """
          :param global_config:
          :type global_config: Config
          :param args:
          :param kwargs:
          """
          super(IntegrationConfig, self).__init__(*args, **kwargs)
  
          # Set internal properties for this `IntegrationConfig`
          # DEV: By-pass the `__setattr__` overrides from `AttrDict` to set real properties
          object.__setattr__(self, "global_config", global_config)
          object.__setattr__(self, "integration_name", name)
          object.__setattr__(self, "hooks", Hooks())
          object.__setattr__(self, "http", HttpConfig())
  
          # Set default analytics configuration, default is disabled
          # DEV: Default to `None` which means do not set this key
          # Inject environment variables for integration
          old_analytics_enabled_env = get_env(name, "analytics_enabled")
          analytics_enabled_env = os.environ.get(
              "DD_TRACE_%s_ANALYTICS_ENABLED" % name.upper(), old_analytics_enabled_env
          )
          if analytics_enabled_env is not None:
              analytics_enabled_env = asbool(analytics_enabled_env)
          self.setdefault("analytics_enabled", analytics_enabled_env)
          old_analytics_rate = get_env(name, "analytics_sample_rate", default=1.0)
          analytics_rate = os.environ.get("DD_TRACE_%s_ANALYTICS_SAMPLE_RATE" % name.upper(), old_analytics_rate)
          self.setdefault("analytics_sample_rate", float(analytics_rate))
  
      def __deepcopy__(self, memodict=None):
          new = IntegrationConfig(self.global_config, self.integration_name, deepcopy(dict(self), memodict))
          new.hooks = deepcopy(self.hooks, memodict)
          new.http = deepcopy(self.http, memodict)
          return new
  
      def copy(self):
          new = IntegrationConfig(self.global_config, self.integration_name, dict(self))
          new.hooks = self.hooks
          new.http = self.http
          return new
  
      @property
      def trace_query_string(self):
          if self.http.trace_query_string is not None:
              return self.http.trace_query_string
          return self.global_config.http.trace_query_string
  
      def header_is_traced(self, header_name):
          """
          Returns whether or not the current header should be traced.
          :param header_name: the header name
          :type header_name: str
          :rtype: bool
          """
          return (
              self.http.header_is_traced(header_name)
              if self.http.is_header_tracing_configured
              else self.global_config.header_is_traced(header_name)
          )
  
      def _is_analytics_enabled(self, use_global_config):
          # DEV: analytics flag can be None which should not be taken as
          # enabled when global flag is disabled
          if use_global_config and self.global_config.analytics_enabled:
              return self.analytics_enabled is not False
          else:
              return self.analytics_enabled is True
  
      def get_analytics_sample_rate(self, use_global_config=False):
          """
          Returns analytics sample rate but only when integration-specific
          analytics configuration is enabled with optional override with global
          configuration
          """
          if self._is_analytics_enabled(use_global_config):
              analytics_sample_rate = getattr(self, "analytics_sample_rate", None)
              # return True if attribute is None or attribute not found
              if analytics_sample_rate is None:
                  return True
              # otherwise return rate
              return analytics_sample_rate
  
          # Use `None` as a way to say that it was not defined,
          #   `False` would mean `0` which is a different thing
          return None
  
      def __repr__(self):
          cls = self.__class__
          keys = ", ".join(self.keys())
          return "{}.{}({})".format(cls.__module__, cls.__name__, keys)
  