lib/logging_utils.py

#!/usr/bin/env python

r"""
Provide useful error log utility keywords.
"""

import gen_print as gp
import sys
import os
import imp
base_path = os.path.dirname(os.path.dirname(
                            imp.find_module("gen_robot_print")[1])) + os.sep
sys.path.append(base_path + "data/")
import variables as var
from robot.libraries.BuiltIn import BuiltIn
import gen_robot_utils as gru
gru.my_import_resource("logging_utils.robot")


def print_error_logs(error_logs, key_list=None):
    r"""
    Print the error logs to the console screen.

    This function provides the following benefits:
    - It will specify print_var parms for the caller (e.g. hex=1).
    - It is much easier to call this function than to generate the desired code
      directly from a robot script.

    Description of argument(s):
    error_logs                      An error log dictionary such as the one
                                    returned by the 'Get Error Logs' keyword.
    key_list                        The list of keys to be printed.  This may
                                    be specified as either a python list
                                    or a space-delimited string.  In the
                                    latter case, this function will convert
                                    it to a python list. See the sprint_varx
                                    function prolog for additionatl details.

    Example use from a python script:

    ${error_logs}=  Get Error Logs
    Print Error Logs  ${error_logs}  Message Timestamp

    Sample output:

    error_logs:
      [/xyz/openbmc_project/logging/entry/3]:
        [Timestamp]:                                  1521738335735
        [Message]:
        xyz.openbmc_project.Inventory.Error.Nonfunctional
      [/xyz/openbmc_project/logging/entry/2]:
        [Timestamp]:                                  1521738334637
        [Message]:
        xyz.openbmc_project.Inventory.Error.Nonfunctional
      [/xyz/openbmc_project/logging/entry/1]:
        [Timestamp]:                                  1521738300696
        [Message]:
        xyz.openbmc_project.Inventory.Error.Nonfunctional
      [/xyz/openbmc_project/logging/entry/4]:
        [Timestamp]:                                  1521738337915
        [Message]:
        xyz.openbmc_project.Inventory.Error.Nonfunctional

    Another example call using a robot list:
    ${error_logs}=  Get Error Logs
    ${key_list}=  Create List  Message  Timestamp  Severity
    Print Error Logs  ${error_logs}  ${key_list}
    """

    if key_list is not None:
        try:
            key_list = key_list.split(" ")
        except AttributeError:
            pass
        key_list.insert(0, var.BMC_LOGGING_ENTRY + ".*")

    gp.print_var(error_logs, hex=1, key_list=key_list)


def get_esels(error_logs=None):
    r"""
    Get all available extended Service Event Logs (eSELs) and return as a list.

    Example robot code:
    ${esels}=  Get Esels
    Rprint Vars  esels

    Example output (excerpt):
    esels:
      esels[0]:                  ESEL=00 00 df 00 00...
      esels[1]:                  ESEL=00 00 df 00 00...

    Description of argument(s):
    error_logs                      The error_log data, which can be obtained
                                    from 'Get Error Logs'.  If this value is
                                    None, then this function will call 'Get
                                    Error Logs' on the caller's behalf.
    """

    if error_logs is None:
        error_logs = BuiltIn().run_keyword('Get Error Logs')

    # Look for any error log entries containing the 'AdditionalData' field
    # which in turn has an entry starting with "ESEL=".  Here is an excerpt of
    # the error_logs that contains such an entry.
    # error_logs:
    #   [/xyz/openbmc_project/logging/entry/1]:
    #     [AdditionalData]:
    #       [AdditionalData][0]:   CALLOUT_INVENTORY_PATH=/xyz/openbmc_project/inventory/system/chassis/mot...
    #       [AdditionalData][1]:   ESEL=00 00 df 00 00 00 00 20 00 04...
    esels = []
    for error_log in error_logs.values():
        if 'AdditionalData' in error_log:
            for additional_data in error_log['AdditionalData']:
                if additional_data.startswith('ESEL='):
                    esels.append(additional_data)

    return esels