Revert "fix(jobspec): Delete ipsec nfv density tests"
[csit.git] / resources / tools / presentation / input_data_parser.py
diff --git a/resources/tools/presentation/input_data_parser.py b/resources/tools/presentation/input_data_parser.py
deleted file mode 100644 (file)
index 2416e05..0000000
+++ /dev/null
@@ -1,1624 +0,0 @@
-# Copyright (c) 2019 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"""Data pre-processing
-
-- extract data from output.xml files generated by Jenkins jobs and store in
-  pandas' Series,
-- provide access to the data.
-- filter the data using tags,
-"""
-
-import re
-import resource
-import pandas as pd
-import logging
-import prettytable
-
-from robot.api import ExecutionResult, ResultVisitor
-from robot import errors
-from collections import OrderedDict
-from string import replace
-from os import remove
-from os.path import join
-from datetime import datetime as dt
-from datetime import timedelta
-from json import loads
-from jumpavg.AvgStdevMetadataFactory import AvgStdevMetadataFactory
-
-from input_data_files import download_and_unzip_data_file
-
-
-# Separator used in file names
-SEPARATOR = "__"
-
-
-class ExecutionChecker(ResultVisitor):
-    """Class to traverse through the test suite structure.
-
-    The functionality implemented in this class generates a json structure:
-
-    Performance tests:
-
-    {
-        "metadata": {
-            "generated": "Timestamp",
-            "version": "SUT version",
-            "job": "Jenkins job name",
-            "build": "Information about the build"
-        },
-        "suites": {
-            "Suite long name 1": {
-                "name": Suite name,
-                "doc": "Suite 1 documentation",
-                "parent": "Suite 1 parent",
-                "level": "Level of the suite in the suite hierarchy"
-            }
-            "Suite long name N": {
-                "name": Suite name,
-                "doc": "Suite N documentation",
-                "parent": "Suite 2 parent",
-                "level": "Level of the suite in the suite hierarchy"
-            }
-        }
-        "tests": {
-            # NDRPDR tests:
-            "ID": {
-                "name": "Test name",
-                "parent": "Name of the parent of the test",
-                "doc": "Test documentation",
-                "msg": "Test message",
-                "conf-history": "DUT1 and DUT2 VAT History",
-                "show-run": "Show Run",
-                "tags": ["tag 1", "tag 2", "tag n"],
-                "type": "NDRPDR",
-                "status": "PASS" | "FAIL",
-                "throughput": {
-                    "NDR": {
-                        "LOWER": float,
-                        "UPPER": float
-                    },
-                    "PDR": {
-                        "LOWER": float,
-                        "UPPER": float
-                    }
-                },
-                "latency": {
-                    "NDR": {
-                        "direction1": {
-                            "min": float,
-                            "avg": float,
-                            "max": float
-                        },
-                        "direction2": {
-                            "min": float,
-                            "avg": float,
-                            "max": float
-                        }
-                    },
-                    "PDR": {
-                        "direction1": {
-                            "min": float,
-                            "avg": float,
-                            "max": float
-                        },
-                        "direction2": {
-                            "min": float,
-                            "avg": float,
-                            "max": float
-                        }
-                    }
-                }
-            }
-
-            # TCP tests:
-            "ID": {
-                "name": "Test name",
-                "parent": "Name of the parent of the test",
-                "doc": "Test documentation",
-                "msg": "Test message",
-                "tags": ["tag 1", "tag 2", "tag n"],
-                "type": "TCP",
-                "status": "PASS" | "FAIL",
-                "result": int
-            }
-
-            # MRR, BMRR tests:
-            "ID": {
-                "name": "Test name",
-                "parent": "Name of the parent of the test",
-                "doc": "Test documentation",
-                "msg": "Test message",
-                "tags": ["tag 1", "tag 2", "tag n"],
-                "type": "MRR" | "BMRR",
-                "status": "PASS" | "FAIL",
-                "result": {
-                    "receive-rate": AvgStdevMetadata,
-                }
-            }
-
-            # TODO: Remove when definitely no NDRPDRDISC tests are used:
-            # NDRPDRDISC tests:
-            "ID": {
-                "name": "Test name",
-                "parent": "Name of the parent of the test",
-                "doc": "Test documentation",
-                "msg": "Test message",
-                "tags": ["tag 1", "tag 2", "tag n"],
-                "type": "PDR" | "NDR",
-                "status": "PASS" | "FAIL",
-                "throughput": {  # Only type: "PDR" | "NDR"
-                    "value": int,
-                    "unit": "pps" | "bps" | "percentage"
-                },
-                "latency": {  # Only type: "PDR" | "NDR"
-                    "direction1": {
-                        "100": {
-                            "min": int,
-                            "avg": int,
-                            "max": int
-                        },
-                        "50": {  # Only for NDR
-                            "min": int,
-                            "avg": int,
-                            "max": int
-                        },
-                        "10": {  # Only for NDR
-                            "min": int,
-                            "avg": int,
-                            "max": int
-                        }
-                    },
-                    "direction2": {
-                        "100": {
-                            "min": int,
-                            "avg": int,
-                            "max": int
-                        },
-                        "50": {  # Only for NDR
-                            "min": int,
-                            "avg": int,
-                            "max": int
-                        },
-                        "10": {  # Only for NDR
-                            "min": int,
-                            "avg": int,
-                            "max": int
-                        }
-                    }
-                },
-                "lossTolerance": "lossTolerance",  # Only type: "PDR"
-                "conf-history": "DUT1 and DUT2 VAT History"
-                "show-run": "Show Run"
-            },
-            "ID" {
-                # next test
-            }
-        }
-    }
-
-
-    Functional tests:
-
-    {
-        "metadata": {  # Optional
-            "version": "VPP version",
-            "job": "Jenkins job name",
-            "build": "Information about the build"
-        },
-        "suites": {
-            "Suite name 1": {
-                "doc": "Suite 1 documentation",
-                "parent": "Suite 1 parent",
-                "level": "Level of the suite in the suite hierarchy"
-            }
-            "Suite name N": {
-                "doc": "Suite N documentation",
-                "parent": "Suite 2 parent",
-                "level": "Level of the suite in the suite hierarchy"
-            }
-        }
-        "tests": {
-            "ID": {
-                "name": "Test name",
-                "parent": "Name of the parent of the test",
-                "doc": "Test documentation"
-                "msg": "Test message"
-                "tags": ["tag 1", "tag 2", "tag n"],
-                "conf-history": "DUT1 and DUT2 VAT History"
-                "show-run": "Show Run"
-                "status": "PASS" | "FAIL"
-            },
-            "ID" {
-                # next test
-            }
-        }
-    }
-
-    .. note:: ID is the lowercase full path to the test.
-    """
-
-    # TODO: Remove when definitely no NDRPDRDISC tests are used:
-    REGEX_RATE = re.compile(r'^[\D\d]*FINAL_RATE:\s(\d+\.\d+)\s(\w+)')
-
-    REGEX_PLR_RATE = re.compile(r'PLRsearch lower bound::\s(\d+.\d+).*\n'
-                                r'PLRsearch upper bound::\s(\d+.\d+)')
-
-    REGEX_NDRPDR_RATE = re.compile(r'NDR_LOWER:\s(\d+.\d+).*\n.*\n'
-                                   r'NDR_UPPER:\s(\d+.\d+).*\n'
-                                   r'PDR_LOWER:\s(\d+.\d+).*\n.*\n'
-                                   r'PDR_UPPER:\s(\d+.\d+)')
-
-    # TODO: Remove when definitely no NDRPDRDISC tests are used:
-    REGEX_LAT_NDR = re.compile(r'^[\D\d]*'
-                               r'LAT_\d+%NDR:\s\[\'(-?\d+/-?\d+/-?\d+)\','
-                               r'\s\'(-?\d+/-?\d+/-?\d+)\'\]\s\n'
-                               r'LAT_\d+%NDR:\s\[\'(-?\d+/-?\d+/-?\d+)\','
-                               r'\s\'(-?\d+/-?\d+/-?\d+)\'\]\s\n'
-                               r'LAT_\d+%NDR:\s\[\'(-?\d+/-?\d+/-?\d+)\','
-                               r'\s\'(-?\d+/-?\d+/-?\d+)\'\]')
-
-    REGEX_LAT_PDR = re.compile(r'^[\D\d]*'
-                               r'LAT_\d+%PDR:\s\[\'(-?\d+/-?\d+/-?\d+)\','
-                               r'\s\'(-?\d+/-?\d+/-?\d+)\'\][\D\d]*')
-
-    REGEX_NDRPDR_LAT = re.compile(r'LATENCY.*\[\'(.*)\', \'(.*)\'\]\s\n.*\n.*\n'
-                                  r'LATENCY.*\[\'(.*)\', \'(.*)\'\]')
-
-    REGEX_TOLERANCE = re.compile(r'^[\D\d]*LOSS_ACCEPTANCE:\s(\d*\.\d*)\s'
-                                 r'[\D\d]*')
-
-    REGEX_VERSION_VPP = re.compile(r"(return STDOUT Version:\s*|"
-                                   r"VPP Version:\s*|VPP version:\s*)(.*)")
-
-    REGEX_VERSION_DPDK = re.compile(r"(DPDK version:\s*|DPDK Version:\s*)(.*)")
-
-    REGEX_TCP = re.compile(r'Total\s(rps|cps|throughput):\s([0-9]*).*$')
-
-    REGEX_MRR = re.compile(r'MaxReceivedRate_Results\s\[pkts/(\d*)sec\]:\s'
-                           r'tx\s(\d*),\srx\s(\d*)')
-
-    REGEX_BMRR = re.compile(r'Maximum Receive Rate trial results'
-                            r' in packets per second: \[(.*)\]')
-
-    REGEX_TC_TAG = re.compile(r'\d+[tT]\d+[cC]')
-
-    REGEX_TC_NAME_OLD = re.compile(r'-\d+[tT]\d+[cC]-')
-
-    REGEX_TC_NAME_NEW = re.compile(r'-\d+[cC]-')
-
-    REGEX_TC_NUMBER = re.compile(r'tc[0-9]{2}-')
-
-    def __init__(self, metadata, mapping, ignore):
-        """Initialisation.
-
-        :param metadata: Key-value pairs to be included in "metadata" part of
-            JSON structure.
-        :param mapping: Mapping of the old names of test cases to the new
-            (actual) one.
-        :param ignore: List of TCs to be ignored.
-        :type metadata: dict
-        :type mapping: dict
-        :type ignore: list
-        """
-
-        # Type of message to parse out from the test messages
-        self._msg_type = None
-
-        # VPP version
-        self._version = None
-
-        # Timestamp
-        self._timestamp = None
-
-        # Testbed. The testbed is identified by TG node IP address.
-        self._testbed = None
-
-        # Mapping of TCs long names
-        self._mapping = mapping
-
-        # Ignore list
-        self._ignore = ignore
-
-        # Number of VAT History messages found:
-        # 0 - no message
-        # 1 - VAT History of DUT1
-        # 2 - VAT History of DUT2
-        self._lookup_kw_nr = 0
-        self._conf_history_lookup_nr = 0
-
-        # Number of Show Running messages found
-        # 0 - no message
-        # 1 - Show run message found
-        self._show_run_lookup_nr = 0
-
-        # Test ID of currently processed test- the lowercase full path to the
-        # test
-        self._test_ID = None
-
-        # The main data structure
-        self._data = {
-            "metadata": OrderedDict(),
-            "suites": OrderedDict(),
-            "tests": OrderedDict()
-        }
-
-        # Save the provided metadata
-        for key, val in metadata.items():
-            self._data["metadata"][key] = val
-
-        # Dictionary defining the methods used to parse different types of
-        # messages
-        self.parse_msg = {
-            "timestamp": self._get_timestamp,
-            "vpp-version": self._get_vpp_version,
-            "dpdk-version": self._get_dpdk_version,
-            "teardown-vat-history": self._get_vat_history,
-            "teardown-papi-history": self._get_papi_history,
-            "test-show-runtime": self._get_show_run,
-            "testbed": self._get_testbed
-        }
-
-    @property
-    def data(self):
-        """Getter - Data parsed from the XML file.
-
-        :returns: Data parsed from the XML file.
-        :rtype: dict
-        """
-        return self._data
-
-    def _get_testbed(self, msg):
-        """Called when extraction of testbed IP is required.
-        The testbed is identified by TG node IP address.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-
-        if msg.message.count("Setup of TG node"):
-            reg_tg_ip = re.compile(
-                r'Setup of TG node (\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}) done')
-            try:
-                self._testbed = str(re.search(reg_tg_ip, msg.message).group(1))
-            except (KeyError, ValueError, IndexError, AttributeError):
-                pass
-            finally:
-                self._data["metadata"]["testbed"] = self._testbed
-                self._msg_type = None
-
-    def _get_vpp_version(self, msg):
-        """Called when extraction of VPP version is required.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-
-        if msg.message.count("return STDOUT Version:") or \
-            msg.message.count("VPP Version:") or \
-            msg.message.count("VPP version:"):
-            self._version = str(re.search(self.REGEX_VERSION_VPP, msg.message).
-                                group(2))
-            self._data["metadata"]["version"] = self._version
-            self._msg_type = None
-
-    def _get_dpdk_version(self, msg):
-        """Called when extraction of DPDK version is required.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-
-        if msg.message.count("DPDK Version:"):
-            try:
-                self._version = str(re.search(
-                    self.REGEX_VERSION_DPDK, msg.message). group(2))
-                self._data["metadata"]["version"] = self._version
-            except IndexError:
-                pass
-            finally:
-                self._msg_type = None
-
-    def _get_timestamp(self, msg):
-        """Called when extraction of timestamp is required.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-
-        self._timestamp = msg.timestamp[:14]
-        self._data["metadata"]["generated"] = self._timestamp
-        self._msg_type = None
-
-    def _get_vat_history(self, msg):
-        """Called when extraction of VAT command history is required.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-        if msg.message.count("VAT command history:"):
-            self._conf_history_lookup_nr += 1
-            if self._conf_history_lookup_nr == 1:
-                self._data["tests"][self._test_ID]["conf-history"] = str()
-            else:
-                self._msg_type = None
-            text = re.sub("[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3} "
-                          "VAT command history:", "", msg.message, count=1). \
-                replace("\n\n", "\n").replace('\n', ' |br| ').\
-                replace('\r', '').replace('"', "'")
-
-            self._data["tests"][self._test_ID]["conf-history"] += " |br| "
-            self._data["tests"][self._test_ID]["conf-history"] += \
-                "**DUT" + str(self._conf_history_lookup_nr) + ":** " + text
-
-    def _get_papi_history(self, msg):
-        """Called when extraction of PAPI command history is required.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-        if msg.message.count("PAPI command history:"):
-            self._conf_history_lookup_nr += 1
-            if self._conf_history_lookup_nr == 1:
-                self._data["tests"][self._test_ID]["conf-history"] = str()
-            else:
-                self._msg_type = None
-            text = re.sub("[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3} "
-                          "PAPI command history:", "", msg.message, count=1). \
-                replace("\n\n", "\n").replace('\n', ' |br| ').\
-                replace('\r', '').replace('"', "'")
-
-            self._data["tests"][self._test_ID]["conf-history"] += " |br| "
-            self._data["tests"][self._test_ID]["conf-history"] += \
-                "**DUT" + str(self._conf_history_lookup_nr) + ":** " + text
-
-    def _get_show_run(self, msg):
-        """Called when extraction of VPP operational data (output of CLI command
-        Show Runtime) is required.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-        if msg.message.count("Runtime:"):
-            self._show_run_lookup_nr += 1
-            if self._lookup_kw_nr == 1 and self._show_run_lookup_nr == 1:
-                self._data["tests"][self._test_ID]["show-run"] = str()
-            if self._lookup_kw_nr > 1:
-                self._msg_type = None
-            if self._show_run_lookup_nr > 0:
-                message = str(msg.message).replace(' ', '').replace('\n', '').\
-                    replace("'", '"').replace('b"', '"').replace('u"', '"')[8:]
-                runtime = loads(message)
-                try:
-                    threads_nr = len(runtime[0]["clocks"])
-                except (IndexError, KeyError):
-                    return
-                tbl_hdr = ["Name", "Calls", "Vectors", "Suspends", "Clocks"]
-                table = [[tbl_hdr, ] for _ in range(threads_nr)]
-                for item in runtime:
-                    for idx in range(threads_nr):
-                        table[idx].append([
-                            item["name"],
-                            item["calls"][idx],
-                            item["vectors"][idx],
-                            item["suspends"][idx],
-                            item["clocks"][idx]
-                        ])
-                text = ""
-                for idx in range(threads_nr):
-                    text += "Thread {idx} ".format(idx=idx)
-                    text += "vpp_main\n" if idx == 0 else \
-                        "vpp_wk_{idx}\n".format(idx=idx-1)
-                    txt_table = None
-                    for row in table[idx]:
-                        if txt_table is None:
-                            txt_table = prettytable.PrettyTable(row)
-                        else:
-                            if any(row[1:]):
-                                txt_table.add_row(row)
-                    txt_table.set_style(prettytable.MSWORD_FRIENDLY)
-                    txt_table.align["Name"] = "l"
-                    txt_table.align["Calls"] = "r"
-                    txt_table.align["Vectors"] = "r"
-                    txt_table.align["Suspends"] = "r"
-                    txt_table.align["Clocks"] = "r"
-
-                    text += txt_table.get_string(sortby="Name") + '\n'
-
-                text = text.replace('\n', ' |br| ').replace('\r', '').\
-                    replace('"', "'")
-                try:
-                    self._data["tests"][self._test_ID]["show-run"] += " |br| "
-                    self._data["tests"][self._test_ID]["show-run"] += \
-                        "**DUT" + str(self._show_run_lookup_nr) + ":** |br| " \
-                        + text
-                except KeyError:
-                    pass
-
-    # TODO: Remove when definitely no NDRPDRDISC tests are used:
-    def _get_latency(self, msg, test_type):
-        """Get the latency data from the test message.
-
-        :param msg: Message to be parsed.
-        :param test_type: Type of the test - NDR or PDR.
-        :type msg: str
-        :type test_type: str
-        :returns: Latencies parsed from the message.
-        :rtype: dict
-        """
-
-        if test_type == "NDR":
-            groups = re.search(self.REGEX_LAT_NDR, msg)
-            groups_range = range(1, 7)
-        elif test_type == "PDR":
-            groups = re.search(self.REGEX_LAT_PDR, msg)
-            groups_range = range(1, 3)
-        else:
-            return {}
-
-        latencies = list()
-        for idx in groups_range:
-            try:
-                lat = [int(item) for item in str(groups.group(idx)).split('/')]
-            except (AttributeError, ValueError):
-                lat = [-1, -1, -1]
-            latencies.append(lat)
-
-        keys = ("min", "avg", "max")
-        latency = {
-            "direction1": {
-            },
-            "direction2": {
-            }
-        }
-
-        latency["direction1"]["100"] = dict(zip(keys, latencies[0]))
-        latency["direction2"]["100"] = dict(zip(keys, latencies[1]))
-        if test_type == "NDR":
-            latency["direction1"]["50"] = dict(zip(keys, latencies[2]))
-            latency["direction2"]["50"] = dict(zip(keys, latencies[3]))
-            latency["direction1"]["10"] = dict(zip(keys, latencies[4]))
-            latency["direction2"]["10"] = dict(zip(keys, latencies[5]))
-
-        return latency
-
-    def _get_ndrpdr_throughput(self, msg):
-        """Get NDR_LOWER, NDR_UPPER, PDR_LOWER and PDR_UPPER from the test
-        message.
-
-        :param msg: The test message to be parsed.
-        :type msg: str
-        :returns: Parsed data as a dict and the status (PASS/FAIL).
-        :rtype: tuple(dict, str)
-        """
-
-        throughput = {
-            "NDR": {"LOWER": -1.0, "UPPER": -1.0},
-            "PDR": {"LOWER": -1.0, "UPPER": -1.0}
-        }
-        status = "FAIL"
-        groups = re.search(self.REGEX_NDRPDR_RATE, msg)
-
-        if groups is not None:
-            try:
-                throughput["NDR"]["LOWER"] = float(groups.group(1))
-                throughput["NDR"]["UPPER"] = float(groups.group(2))
-                throughput["PDR"]["LOWER"] = float(groups.group(3))
-                throughput["PDR"]["UPPER"] = float(groups.group(4))
-                status = "PASS"
-            except (IndexError, ValueError):
-                pass
-
-        return throughput, status
-
-    def _get_plr_throughput(self, msg):
-        """Get PLRsearch lower bound and PLRsearch upper bound from the test
-        message.
-
-        :param msg: The test message to be parsed.
-        :type msg: str
-        :returns: Parsed data as a dict and the status (PASS/FAIL).
-        :rtype: tuple(dict, str)
-        """
-
-        throughput = {
-            "LOWER": -1.0,
-            "UPPER": -1.0
-        }
-        status = "FAIL"
-        groups = re.search(self.REGEX_PLR_RATE, msg)
-
-        if groups is not None:
-            try:
-                throughput["LOWER"] = float(groups.group(1))
-                throughput["UPPER"] = float(groups.group(2))
-                status = "PASS"
-            except (IndexError, ValueError):
-                pass
-
-        return throughput, status
-
-    def _get_ndrpdr_latency(self, msg):
-        """Get LATENCY from the test message.
-
-        :param msg: The test message to be parsed.
-        :type msg: str
-        :returns: Parsed data as a dict and the status (PASS/FAIL).
-        :rtype: tuple(dict, str)
-        """
-
-        latency = {
-            "NDR": {
-                "direction1": {"min": -1.0, "avg": -1.0, "max": -1.0},
-                "direction2": {"min": -1.0, "avg": -1.0, "max": -1.0}
-            },
-            "PDR": {
-                "direction1": {"min": -1.0, "avg": -1.0, "max": -1.0},
-                "direction2": {"min": -1.0, "avg": -1.0, "max": -1.0}
-            }
-        }
-        status = "FAIL"
-        groups = re.search(self.REGEX_NDRPDR_LAT, msg)
-
-        if groups is not None:
-            keys = ("min", "avg", "max")
-            try:
-                latency["NDR"]["direction1"] = dict(
-                    zip(keys, [float(l) for l in groups.group(1).split('/')]))
-                latency["NDR"]["direction2"] = dict(
-                    zip(keys, [float(l) for l in groups.group(2).split('/')]))
-                latency["PDR"]["direction1"] = dict(
-                    zip(keys, [float(l) for l in groups.group(3).split('/')]))
-                latency["PDR"]["direction2"] = dict(
-                    zip(keys, [float(l) for l in groups.group(4).split('/')]))
-                status = "PASS"
-            except (IndexError, ValueError):
-                pass
-
-        return latency, status
-
-    def visit_suite(self, suite):
-        """Implements traversing through the suite and its direct children.
-
-        :param suite: Suite to process.
-        :type suite: Suite
-        :returns: Nothing.
-        """
-        if self.start_suite(suite) is not False:
-            suite.suites.visit(self)
-            suite.tests.visit(self)
-            self.end_suite(suite)
-
-    def start_suite(self, suite):
-        """Called when suite starts.
-
-        :param suite: Suite to process.
-        :type suite: Suite
-        :returns: Nothing.
-        """
-
-        try:
-            parent_name = suite.parent.name
-        except AttributeError:
-            return
-
-        doc_str = suite.doc.replace('"', "'").replace('\n', ' ').\
-            replace('\r', '').replace('*[', ' |br| *[').replace("*", "**")
-        doc_str = replace(doc_str, ' |br| *[', '*[', maxreplace=1)
-
-        self._data["suites"][suite.longname.lower().replace('"', "'").
-            replace(" ", "_")] = {
-                "name": suite.name.lower(),
-                "doc": doc_str,
-                "parent": parent_name,
-                "level": len(suite.longname.split("."))
-            }
-
-        suite.keywords.visit(self)
-
-    def end_suite(self, suite):
-        """Called when suite ends.
-
-        :param suite: Suite to process.
-        :type suite: Suite
-        :returns: Nothing.
-        """
-        pass
-
-    def visit_test(self, test):
-        """Implements traversing through the test.
-
-        :param test: Test to process.
-        :type test: Test
-        :returns: Nothing.
-        """
-        if self.start_test(test) is not False:
-            test.keywords.visit(self)
-            self.end_test(test)
-
-    def start_test(self, test):
-        """Called when test starts.
-
-        :param test: Test to process.
-        :type test: Test
-        :returns: Nothing.
-        """
-
-        longname_orig = test.longname.lower()
-
-        # Check the ignore list
-        if longname_orig in self._ignore:
-            return
-
-        tags = [str(tag) for tag in test.tags]
-        test_result = dict()
-
-        # Change the TC long name and name if defined in the mapping table
-        longname = self._mapping.get(longname_orig, None)
-        if longname is not None:
-            name = longname.split('.')[-1]
-            logging.debug("{0}\n{1}\n{2}\n{3}".format(
-                self._data["metadata"], longname_orig, longname, name))
-        else:
-            longname = longname_orig
-            name = test.name.lower()
-
-        # Remove TC number from the TC long name (backward compatibility):
-        self._test_ID = re.sub(self.REGEX_TC_NUMBER, "", longname)
-        # Remove TC number from the TC name (not needed):
-        test_result["name"] = re.sub(self.REGEX_TC_NUMBER, "", name)
-
-        test_result["parent"] = test.parent.name.lower()
-        test_result["tags"] = tags
-        doc_str = test.doc.replace('"', "'").replace('\n', ' '). \
-            replace('\r', '').replace('[', ' |br| [')
-        test_result["doc"] = replace(doc_str, ' |br| [', '[', maxreplace=1)
-        test_result["msg"] = test.message.replace('\n', ' |br| '). \
-            replace('\r', '').replace('"', "'")
-        test_result["type"] = "FUNC"
-        test_result["status"] = test.status
-
-        if "PERFTEST" in tags:
-            # Replace info about cores (e.g. -1c-) with the info about threads
-            # and cores (e.g. -1t1c-) in the long test case names and in the
-            # test case names if necessary.
-            groups = re.search(self.REGEX_TC_NAME_OLD, self._test_ID)
-            if not groups:
-                tag_count = 0
-                for tag in test_result["tags"]:
-                    groups = re.search(self.REGEX_TC_TAG, tag)
-                    if groups:
-                        tag_count += 1
-                        tag_tc = tag
-
-                if tag_count == 1:
-                    self._test_ID = re.sub(self.REGEX_TC_NAME_NEW,
-                                           "-{0}-".format(tag_tc.lower()),
-                                           self._test_ID,
-                                           count=1)
-                    test_result["name"] = re.sub(self.REGEX_TC_NAME_NEW,
-                                                 "-{0}-".format(tag_tc.lower()),
-                                                 test_result["name"],
-                                                 count=1)
-                else:
-                    test_result["status"] = "FAIL"
-                    self._data["tests"][self._test_ID] = test_result
-                    logging.debug("The test '{0}' has no or more than one "
-                                  "multi-threading tags.".format(self._test_ID))
-                    logging.debug("Tags: {0}".format(test_result["tags"]))
-                    return
-
-        if test.status == "PASS" and ("NDRPDRDISC" in tags or
-                                      "NDRPDR" in tags or
-                                      "SOAK" in tags or
-                                      "TCP" in tags or
-                                      "MRR" in tags or
-                                      "BMRR" in tags):
-            # TODO: Remove when definitely no NDRPDRDISC tests are used:
-            if "NDRDISC" in tags:
-                test_result["type"] = "NDR"
-            # TODO: Remove when definitely no NDRPDRDISC tests are used:
-            elif "PDRDISC" in tags:
-                test_result["type"] = "PDR"
-            elif "NDRPDR" in tags:
-                test_result["type"] = "NDRPDR"
-            elif "SOAK" in tags:
-                test_result["type"] = "SOAK"
-            elif "TCP" in tags:
-                test_result["type"] = "TCP"
-            elif "MRR" in tags:
-                test_result["type"] = "MRR"
-            elif "FRMOBL" in tags or "BMRR" in tags:
-                test_result["type"] = "BMRR"
-            else:
-                test_result["status"] = "FAIL"
-                self._data["tests"][self._test_ID] = test_result
-                return
-
-            # TODO: Remove when definitely no NDRPDRDISC tests are used:
-            if test_result["type"] in ("NDR", "PDR"):
-                try:
-                    rate_value = str(re.search(
-                        self.REGEX_RATE, test.message).group(1))
-                except AttributeError:
-                    rate_value = "-1"
-                try:
-                    rate_unit = str(re.search(
-                        self.REGEX_RATE, test.message).group(2))
-                except AttributeError:
-                    rate_unit = "-1"
-
-                test_result["throughput"] = dict()
-                test_result["throughput"]["value"] = \
-                    int(rate_value.split('.')[0])
-                test_result["throughput"]["unit"] = rate_unit
-                test_result["latency"] = \
-                    self._get_latency(test.message, test_result["type"])
-                if test_result["type"] == "PDR":
-                    test_result["lossTolerance"] = str(re.search(
-                        self.REGEX_TOLERANCE, test.message).group(1))
-
-            elif test_result["type"] in ("NDRPDR", ):
-                test_result["throughput"], test_result["status"] = \
-                    self._get_ndrpdr_throughput(test.message)
-                test_result["latency"], test_result["status"] = \
-                    self._get_ndrpdr_latency(test.message)
-
-            elif test_result["type"] in ("SOAK", ):
-                test_result["throughput"], test_result["status"] = \
-                    self._get_plr_throughput(test.message)
-
-            elif test_result["type"] in ("TCP", ):
-                groups = re.search(self.REGEX_TCP, test.message)
-                test_result["result"] = int(groups.group(2))
-
-            elif test_result["type"] in ("MRR", "BMRR"):
-                test_result["result"] = dict()
-                groups = re.search(self.REGEX_BMRR, test.message)
-                if groups is not None:
-                    items_str = groups.group(1)
-                    items_float = [float(item.strip()) for item
-                                   in items_str.split(",")]
-                    metadata = AvgStdevMetadataFactory.from_data(items_float)
-                    # Next two lines have been introduced in CSIT-1179,
-                    # to be removed in CSIT-1180.
-                    metadata.size = 1
-                    metadata.stdev = 0.0
-                    test_result["result"]["receive-rate"] = metadata
-                else:
-                    groups = re.search(self.REGEX_MRR, test.message)
-                    test_result["result"]["receive-rate"] = \
-                        AvgStdevMetadataFactory.from_data([
-                            float(groups.group(3)) / float(groups.group(1)), ])
-
-        self._data["tests"][self._test_ID] = test_result
-
-    def end_test(self, test):
-        """Called when test ends.
-
-        :param test: Test to process.
-        :type test: Test
-        :returns: Nothing.
-        """
-        pass
-
-    def visit_keyword(self, keyword):
-        """Implements traversing through the keyword and its child keywords.
-
-        :param keyword: Keyword to process.
-        :type keyword: Keyword
-        :returns: Nothing.
-        """
-        if self.start_keyword(keyword) is not False:
-            self.end_keyword(keyword)
-
-    def start_keyword(self, keyword):
-        """Called when keyword starts. Default implementation does nothing.
-
-        :param keyword: Keyword to process.
-        :type keyword: Keyword
-        :returns: Nothing.
-        """
-        try:
-            if keyword.type == "setup":
-                self.visit_setup_kw(keyword)
-            elif keyword.type == "teardown":
-                self._lookup_kw_nr = 0
-                self.visit_teardown_kw(keyword)
-            else:
-                self._lookup_kw_nr = 0
-                self.visit_test_kw(keyword)
-        except AttributeError:
-            pass
-
-    def end_keyword(self, keyword):
-        """Called when keyword ends. Default implementation does nothing.
-
-        :param keyword: Keyword to process.
-        :type keyword: Keyword
-        :returns: Nothing.
-        """
-        pass
-
-    def visit_test_kw(self, test_kw):
-        """Implements traversing through the test keyword and its child
-        keywords.
-
-        :param test_kw: Keyword to process.
-        :type test_kw: Keyword
-        :returns: Nothing.
-        """
-        for keyword in test_kw.keywords:
-            if self.start_test_kw(keyword) is not False:
-                self.visit_test_kw(keyword)
-                self.end_test_kw(keyword)
-
-    def start_test_kw(self, test_kw):
-        """Called when test keyword starts. Default implementation does
-        nothing.
-
-        :param test_kw: Keyword to process.
-        :type test_kw: Keyword
-        :returns: Nothing.
-        """
-        if test_kw.name.count("Show Runtime Counters On All Duts"):
-            self._lookup_kw_nr += 1
-            self._show_run_lookup_nr = 0
-            self._msg_type = "test-show-runtime"
-        elif test_kw.name.count("Install Dpdk Test") and not self._version:
-            self._msg_type = "dpdk-version"
-        else:
-            return
-        test_kw.messages.visit(self)
-
-    def end_test_kw(self, test_kw):
-        """Called when keyword ends. Default implementation does nothing.
-
-        :param test_kw: Keyword to process.
-        :type test_kw: Keyword
-        :returns: Nothing.
-        """
-        pass
-
-    def visit_setup_kw(self, setup_kw):
-        """Implements traversing through the teardown keyword and its child
-        keywords.
-
-        :param setup_kw: Keyword to process.
-        :type setup_kw: Keyword
-        :returns: Nothing.
-        """
-        for keyword in setup_kw.keywords:
-            if self.start_setup_kw(keyword) is not False:
-                self.visit_setup_kw(keyword)
-                self.end_setup_kw(keyword)
-
-    def start_setup_kw(self, setup_kw):
-        """Called when teardown keyword starts. Default implementation does
-        nothing.
-
-        :param setup_kw: Keyword to process.
-        :type setup_kw: Keyword
-        :returns: Nothing.
-        """
-        if setup_kw.name.count("Show Vpp Version On All Duts") \
-                and not self._version:
-            self._msg_type = "vpp-version"
-        elif setup_kw.name.count("Set Global Variable") \
-                and not self._timestamp:
-            self._msg_type = "timestamp"
-        elif setup_kw.name.count("Setup Framework") and not self._testbed:
-            self._msg_type = "testbed"
-        else:
-            return
-        setup_kw.messages.visit(self)
-
-    def end_setup_kw(self, setup_kw):
-        """Called when keyword ends. Default implementation does nothing.
-
-        :param setup_kw: Keyword to process.
-        :type setup_kw: Keyword
-        :returns: Nothing.
-        """
-        pass
-
-    def visit_teardown_kw(self, teardown_kw):
-        """Implements traversing through the teardown keyword and its child
-        keywords.
-
-        :param teardown_kw: Keyword to process.
-        :type teardown_kw: Keyword
-        :returns: Nothing.
-        """
-        for keyword in teardown_kw.keywords:
-            if self.start_teardown_kw(keyword) is not False:
-                self.visit_teardown_kw(keyword)
-                self.end_teardown_kw(keyword)
-
-    def start_teardown_kw(self, teardown_kw):
-        """Called when teardown keyword starts. Default implementation does
-        nothing.
-
-        :param teardown_kw: Keyword to process.
-        :type teardown_kw: Keyword
-        :returns: Nothing.
-        """
-
-        if teardown_kw.name.count("Show Vat History On All Duts"):
-            self._conf_history_lookup_nr = 0
-            self._msg_type = "teardown-vat-history"
-            teardown_kw.messages.visit(self)
-        elif teardown_kw.name.count("Show Papi History On All Duts"):
-            self._conf_history_lookup_nr = 0
-            self._msg_type = "teardown-papi-history"
-            teardown_kw.messages.visit(self)
-
-    def end_teardown_kw(self, teardown_kw):
-        """Called when keyword ends. Default implementation does nothing.
-
-        :param teardown_kw: Keyword to process.
-        :type teardown_kw: Keyword
-        :returns: Nothing.
-        """
-        pass
-
-    def visit_message(self, msg):
-        """Implements visiting the message.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-        if self.start_message(msg) is not False:
-            self.end_message(msg)
-
-    def start_message(self, msg):
-        """Called when message starts. Get required information from messages:
-        - VPP version.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-
-        if self._msg_type:
-            self.parse_msg[self._msg_type](msg)
-
-    def end_message(self, msg):
-        """Called when message ends. Default implementation does nothing.
-
-        :param msg: Message to process.
-        :type msg: Message
-        :returns: Nothing.
-        """
-        pass
-
-
-class InputData(object):
-    """Input data
-
-    The data is extracted from output.xml files generated by Jenkins jobs and
-    stored in pandas' DataFrames.
-
-    The data structure:
-    - job name
-      - build number
-        - metadata
-          (as described in ExecutionChecker documentation)
-        - suites
-          (as described in ExecutionChecker documentation)
-        - tests
-          (as described in ExecutionChecker documentation)
-    """
-
-    def __init__(self, spec):
-        """Initialization.
-
-        :param spec: Specification.
-        :type spec: Specification
-        """
-
-        # Specification:
-        self._cfg = spec
-
-        # Data store:
-        self._input_data = pd.Series()
-
-    @property
-    def data(self):
-        """Getter - Input data.
-
-        :returns: Input data
-        :rtype: pandas.Series
-        """
-        return self._input_data
-
-    def metadata(self, job, build):
-        """Getter - metadata
-
-        :param job: Job which metadata we want.
-        :param build: Build which metadata we want.
-        :type job: str
-        :type build: str
-        :returns: Metadata
-        :rtype: pandas.Series
-        """
-
-        return self.data[job][build]["metadata"]
-
-    def suites(self, job, build):
-        """Getter - suites
-
-        :param job: Job which suites we want.
-        :param build: Build which suites we want.
-        :type job: str
-        :type build: str
-        :returns: Suites.
-        :rtype: pandas.Series
-        """
-
-        return self.data[job][str(build)]["suites"]
-
-    def tests(self, job, build):
-        """Getter - tests
-
-        :param job: Job which tests we want.
-        :param build: Build which tests we want.
-        :type job: str
-        :type build: str
-        :returns: Tests.
-        :rtype: pandas.Series
-        """
-
-        return self.data[job][build]["tests"]
-
-    def _parse_tests(self, job, build, log):
-        """Process data from robot output.xml file and return JSON structured
-        data.
-
-        :param job: The name of job which build output data will be processed.
-        :param build: The build which output data will be processed.
-        :param log: List of log messages.
-        :type job: str
-        :type build: dict
-        :type log: list of tuples (severity, msg)
-        :returns: JSON data structure.
-        :rtype: dict
-        """
-
-        metadata = {
-            "job": job,
-            "build": build
-        }
-
-        with open(build["file-name"], 'r') as data_file:
-            try:
-                result = ExecutionResult(data_file)
-            except errors.DataError as err:
-                log.append(("ERROR", "Error occurred while parsing output.xml: "
-                                     "{0}".format(err)))
-                return None
-        checker = ExecutionChecker(metadata, self._cfg.mapping,
-                                   self._cfg.ignore)
-        result.visit(checker)
-
-        return checker.data
-
-    def _download_and_parse_build(self, job, build, repeat, pid=10000):
-        """Download and parse the input data file.
-
-        :param pid: PID of the process executing this method.
-        :param job: Name of the Jenkins job which generated the processed input
-            file.
-        :param build: Information about the Jenkins build which generated the
-            processed input file.
-        :param repeat: Repeat the download specified number of times if not
-            successful.
-        :type pid: int
-        :type job: str
-        :type build: dict
-        :type repeat: int
-        """
-
-        logs = list()
-
-        logs.append(("INFO", "  Processing the job/build: {0}: {1}".
-                     format(job, build["build"])))
-
-        state = "failed"
-        success = False
-        data = None
-        do_repeat = repeat
-        while do_repeat:
-            success = download_and_unzip_data_file(self._cfg, job, build, pid,
-                                                   logs)
-            if success:
-                break
-            do_repeat -= 1
-        if not success:
-            logs.append(("ERROR", "It is not possible to download the input "
-                                  "data file from the job '{job}', build "
-                                  "'{build}', or it is damaged. Skipped.".
-                         format(job=job, build=build["build"])))
-        if success:
-            logs.append(("INFO", "    Processing data from the build '{0}' ...".
-                         format(build["build"])))
-            data = self._parse_tests(job, build, logs)
-            if data is None:
-                logs.append(("ERROR", "Input data file from the job '{job}', "
-                                      "build '{build}' is damaged. Skipped.".
-                             format(job=job, build=build["build"])))
-            else:
-                state = "processed"
-
-            try:
-                remove(build["file-name"])
-            except OSError as err:
-                logs.append(("ERROR", "Cannot remove the file '{0}': {1}".
-                             format(build["file-name"], repr(err))))
-
-        # If the time-period is defined in the specification file, remove all
-        # files which are outside the time period.
-        timeperiod = self._cfg.input.get("time-period", None)
-        if timeperiod and data:
-            now = dt.utcnow()
-            timeperiod = timedelta(int(timeperiod))
-            metadata = data.get("metadata", None)
-            if metadata:
-                generated = metadata.get("generated", None)
-                if generated:
-                    generated = dt.strptime(generated, "%Y%m%d %H:%M")
-                    if (now - generated) > timeperiod:
-                        # Remove the data and the file:
-                        state = "removed"
-                        data = None
-                        logs.append(
-                            ("INFO",
-                             "    The build {job}/{build} is outdated, will be "
-                             "removed".format(job=job, build=build["build"])))
-                        file_name = self._cfg.input["file-name"]
-                        full_name = join(
-                            self._cfg.environment["paths"]["DIR[WORKING,DATA]"],
-                            "{job}{sep}{build}{sep}{name}".format(
-                                job=job,
-                                sep=SEPARATOR,
-                                build=build["build"],
-                                name=file_name))
-                        try:
-                            remove(full_name)
-                            logs.append(("INFO",
-                                         "    The file {name} has been removed".
-                                         format(name=full_name)))
-                        except OSError as err:
-                            logs.append(("ERROR",
-                                         "Cannot remove the file '{0}': {1}".
-                                         format(full_name, repr(err))))
-        logs.append(("INFO", "  Done."))
-
-        for level, line in logs:
-            if level == "INFO":
-                logging.info(line)
-            elif level == "ERROR":
-                logging.error(line)
-            elif level == "DEBUG":
-                logging.debug(line)
-            elif level == "CRITICAL":
-                logging.critical(line)
-            elif level == "WARNING":
-                logging.warning(line)
-
-        return {"data": data, "state": state, "job": job, "build": build}
-
-    def download_and_parse_data(self, repeat=1):
-        """Download the input data files, parse input data from input files and
-        store in pandas' Series.
-
-        :param repeat: Repeat the download specified number of times if not
-            successful.
-        :type repeat: int
-        """
-
-        logging.info("Downloading and parsing input files ...")
-
-        for job, builds in self._cfg.builds.items():
-            for build in builds:
-
-                result = self._download_and_parse_build(job, build, repeat)
-                build_nr = result["build"]["build"]
-
-                if result["data"]:
-                    data = result["data"]
-                    build_data = pd.Series({
-                        "metadata": pd.Series(
-                            data["metadata"].values(),
-                            index=data["metadata"].keys()),
-                        "suites": pd.Series(data["suites"].values(),
-                                            index=data["suites"].keys()),
-                        "tests": pd.Series(data["tests"].values(),
-                                           index=data["tests"].keys())})
-
-                    if self._input_data.get(job, None) is None:
-                        self._input_data[job] = pd.Series()
-                    self._input_data[job][str(build_nr)] = build_data
-
-                    self._cfg.set_input_file_name(
-                        job, build_nr, result["build"]["file-name"])
-
-                self._cfg.set_input_state(job, build_nr, result["state"])
-
-                logging.info("Memory allocation: {0:,d}MB".format(
-                    resource.getrusage(resource.RUSAGE_SELF).ru_maxrss / 1000))
-
-        logging.info("Done.")
-
-    @staticmethod
-    def _end_of_tag(tag_filter, start=0, closer="'"):
-        """Return the index of character in the string which is the end of tag.
-
-        :param tag_filter: The string where the end of tag is being searched.
-        :param start: The index where the searching is stated.
-        :param closer: The character which is the tag closer.
-        :type tag_filter: str
-        :type start: int
-        :type closer: str
-        :returns: The index of the tag closer.
-        :rtype: int
-        """
-
-        try:
-            idx_opener = tag_filter.index(closer, start)
-            return tag_filter.index(closer, idx_opener + 1)
-        except ValueError:
-            return None
-
-    @staticmethod
-    def _condition(tag_filter):
-        """Create a conditional statement from the given tag filter.
-
-        :param tag_filter: Filter based on tags from the element specification.
-        :type tag_filter: str
-        :returns: Conditional statement which can be evaluated.
-        :rtype: str
-        """
-
-        index = 0
-        while True:
-            index = InputData._end_of_tag(tag_filter, index)
-            if index is None:
-                return tag_filter
-            index += 1
-            tag_filter = tag_filter[:index] + " in tags" + tag_filter[index:]
-
-    def filter_data(self, element, params=None, data=None, data_set="tests",
-                    continue_on_error=False):
-        """Filter required data from the given jobs and builds.
-
-        The output data structure is:
-
-        - job 1
-          - build 1
-            - test (or suite) 1 ID:
-              - param 1
-              - param 2
-              ...
-              - param n
-            ...
-            - test (or suite) n ID:
-            ...
-          ...
-          - build n
-        ...
-        - job n
-
-        :param element: Element which will use the filtered data.
-        :param params: Parameters which will be included in the output. If None,
-            all parameters are included.
-        :param data: If not None, this data is used instead of data specified
-            in the element.
-        :param data_set: The set of data to be filtered: tests, suites,
-            metadata.
-        :param continue_on_error: Continue if there is error while reading the
-            data. The Item will be empty then
-        :type element: pandas.Series
-        :type params: list
-        :type data: dict
-        :type data_set: str
-        :type continue_on_error: bool
-        :returns: Filtered data.
-        :rtype pandas.Series
-        """
-
-        try:
-            if element["filter"] in ("all", "template"):
-                cond = "True"
-            else:
-                cond = InputData._condition(element["filter"])
-            logging.debug("   Filter: {0}".format(cond))
-        except KeyError:
-            logging.error("  No filter defined.")
-            return None
-
-        if params is None:
-            params = element.get("parameters", None)
-            if params:
-                params.append("type")
-
-        data_to_filter = data if data else element["data"]
-        data = pd.Series()
-        try:
-            for job, builds in data_to_filter.items():
-                data[job] = pd.Series()
-                for build in builds:
-                    data[job][str(build)] = pd.Series()
-                    try:
-                        data_iter = self.data[job][str(build)][data_set].\
-                            iteritems()
-                    except KeyError:
-                        if continue_on_error:
-                            continue
-                        else:
-                            return None
-                    for test_ID, test_data in data_iter:
-                        if eval(cond, {"tags": test_data.get("tags", "")}):
-                            data[job][str(build)][test_ID] = pd.Series()
-                            if params is None:
-                                for param, val in test_data.items():
-                                    data[job][str(build)][test_ID][param] = val
-                            else:
-                                for param in params:
-                                    try:
-                                        data[job][str(build)][test_ID][param] =\
-                                            test_data[param]
-                                    except KeyError:
-                                        data[job][str(build)][test_ID][param] =\
-                                            "No Data"
-            return data
-
-        except (KeyError, IndexError, ValueError) as err:
-            logging.error("   Missing mandatory parameter in the element "
-                          "specification: {0}".format(err))
-            return None
-        except AttributeError:
-            return None
-        except SyntaxError:
-            logging.error("   The filter '{0}' is not correct. Check if all "
-                          "tags are enclosed by apostrophes.".format(cond))
-            return None
-
-    def filter_tests_by_name(self, element, params=None, data_set="tests",
-                             continue_on_error=False):
-        """Filter required data from the given jobs and builds.
-
-        The output data structure is:
-
-        - job 1
-          - build 1
-            - test (or suite) 1 ID:
-              - param 1
-              - param 2
-              ...
-              - param n
-            ...
-            - test (or suite) n ID:
-            ...
-          ...
-          - build n
-        ...
-        - job n
-
-        :param element: Element which will use the filtered data.
-        :param params: Parameters which will be included in the output. If None,
-        all parameters are included.
-        :param data_set: The set of data to be filtered: tests, suites,
-        metadata.
-        :param continue_on_error: Continue if there is error while reading the
-        data. The Item will be empty then
-        :type element: pandas.Series
-        :type params: list
-        :type data_set: str
-        :type continue_on_error: bool
-        :returns: Filtered data.
-        :rtype pandas.Series
-        """
-
-        include = element.get("include", None)
-        if not include:
-            logging.warning("No tests to include, skipping the element.")
-            return None
-
-        if params is None:
-            params = element.get("parameters", None)
-            if params:
-                params.append("type")
-
-        data = pd.Series()
-        try:
-            for job, builds in element["data"].items():
-                data[job] = pd.Series()
-                for build in builds:
-                    data[job][str(build)] = pd.Series()
-                    for test in include:
-                        try:
-                            reg_ex = re.compile(str(test).lower())
-                            for test_ID in self.data[job][str(build)]\
-                                    [data_set].keys():
-                                if re.match(reg_ex, str(test_ID).lower()):
-                                    test_data = self.data[job][str(build)]\
-                                        [data_set][test_ID]
-                                    data[job][str(build)][test_ID] = pd.Series()
-                                    if params is None:
-                                        for param, val in test_data.items():
-                                            data[job][str(build)][test_ID]\
-                                                [param] = val
-                                    else:
-                                        for param in params:
-                                            try:
-                                                data[job][str(build)][test_ID]\
-                                                    [param] = test_data[param]
-                                            except KeyError:
-                                                data[job][str(build)][test_ID]\
-                                                    [param] = "No Data"
-                        except KeyError as err:
-                            logging.error("{err!r}".format(err=err))
-                            if continue_on_error:
-                                continue
-                            else:
-                                return None
-            return data
-
-        except (KeyError, IndexError, ValueError) as err:
-            logging.error("Missing mandatory parameter in the element "
-                          "specification: {err!r}".format(err=err))
-            return None
-        except AttributeError as err:
-            logging.error("{err!r}".format(err=err))
-            return None
-
-
-    @staticmethod
-    def merge_data(data):
-        """Merge data from more jobs and builds to a simple data structure.
-
-        The output data structure is:
-
-        - test (suite) 1 ID:
-          - param 1
-          - param 2
-          ...
-          - param n
-        ...
-        - test (suite) n ID:
-        ...
-
-        :param data: Data to merge.
-        :type data: pandas.Series
-        :returns: Merged data.
-        :rtype: pandas.Series
-        """
-
-        logging.info("    Merging data ...")
-
-        merged_data = pd.Series()
-        for _, builds in data.iteritems():
-            for _, item in builds.iteritems():
-                for ID, item_data in item.iteritems():
-                    merged_data[ID] = item_data
-
-        return merged_data