names.py 文件源码

def raw_metric_query(query):
    """Runs a query for metric information against Graphite's REST API.

    :param query: A search string, e.g. "nav.devices.some-gw_example_org.*"
    :returns: A list of matching metrics, each represented by a dict.

    """
    base = CONFIG.get("graphiteweb", "base")
    url = urljoin(base, "/metrics/find")
    query = urlencode({'query': query})
    url = "%s?%s" % (url, query)

    req = Request(url)
    try:
        response = urlopen(req)
        return json.load(response)
    except URLError as err:
        raise errors.GraphiteUnreachableError(
            "{0} is unreachable".format(base), err)
    except ValueError:
        # response could not be decoded
        return []
    finally:
        try:
            response.close()
        except NameError:
            pass