Revert "fix(IPsecUtil): Delete keywords no longer used"
[csit.git] / resources / tools / presentation / specification_parser.py
diff --git a/resources/tools/presentation/specification_parser.py b/resources/tools/presentation/specification_parser.py
deleted file mode 100644 (file)
index 4110bff..0000000
+++ /dev/null
@@ -1,892 +0,0 @@
-# Copyright (c) 2021 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.
-
-"""Specification
-
-Parsing of the specification YAML file.
-"""
-
-
-from os.path import join, exists
-
-import logging
-from pprint import pformat
-
-from yaml import load, FullLoader, YAMLError
-
-from pal_errors import PresentationError
-from pal_utils import (
-    get_last_successful_build_nr, get_last_completed_build_number
-)
-
-
-class Specification:
-    """Specification of Presentation and analytics layer.
-
-    - based on specification specified in the specification YAML files
-    - presentation and analytics layer is model driven
-    """
-
-    # Tags are used in specification YAML file and replaced while the file is
-    # parsed.
-    TAG_OPENER = u"{"
-    TAG_CLOSER = u"}"
-
-    def __init__(self, cfg_dir):
-        """Initialization.
-
-        :param cfg_dir: Directory with the specification files.
-        :type cfg_dir: str
-        """
-        self._cfg_dir = cfg_dir
-        self._cfg_yaml = None
-
-        self._specification = {
-            u"environment": dict(),
-            u"data_sets": dict(),
-            u"layouts": dict(),
-            u"static": dict(),
-            u"input": dict(),
-            u"output": dict(),
-            u"tables": list(),
-            u"plots": list(),
-            u"files": list(),
-            u"cpta": dict()
-        }
-
-    @property
-    def specification(self):
-        """Getter - specification.
-
-        :returns: Specification.
-        :rtype: dict
-        """
-        return self._specification
-
-    @property
-    def environment(self):
-        """Getter - environment.
-
-        :returns: Environment specification.
-        :rtype: dict
-        """
-        return self._specification[u"environment"]
-
-    @property
-    def data_sets(self):
-        """Getter - data_sets.
-
-        :returns: Data sets.
-        :rtype: dict
-        """
-        return self._specification[u"data_sets"]
-
-    @property
-    def layouts(self):
-        """Getter - layouts.
-
-        :returns: Layouts.
-        :rtype: dict
-        """
-        return self._specification[u"layouts"]
-
-    @property
-    def static(self):
-        """Getter - static content.
-
-        :returns: Static content specification.
-        :rtype: dict
-        """
-        return self._specification[u"static"]
-
-    @property
-    def mapping(self):
-        """Getter - Mapping.
-
-        :returns: Mapping of the old names of test cases to the new (actual)
-            one.
-        :rtype: dict
-        """
-        return self.environment[u"mapping"]
-
-    @property
-    def ignore(self):
-        """Getter - Ignore list.
-
-        :returns: List of ignored test cases.
-        :rtype: list
-        """
-        return self.environment[u"ignore"]
-
-    @property
-    def alerting(self):
-        """Getter - Alerting.
-
-        # TODO
-
-        :returns: Specification of alerts.
-        :rtype: dict
-        """
-        return self.environment[u"alerting"]
-
-    @property
-    def input(self):
-        """Getter - specification - inputs.
-        - jobs and builds.
-
-        :returns: Inputs.
-        :rtype: dict
-        """
-        return self._specification[u"input"]
-
-    @input.setter
-    def input(self, new_value):
-        """Setter - specification - inputs.
-
-        :param new_value: New value to be set.
-        :type new_value: dict
-        """
-        self._specification[u"input"] = new_value
-
-    def add_build(self, job, build):
-        """Add a build to the list of builds if it does not exist there.
-
-        :param job: The job which run the build.
-        :param build: The build to be added.
-        :type job: str
-        :type build: dict
-        """
-        if self.input.get(job, None) is None:
-            self.input[job] = list()
-        for existing_build in self.input[job]:
-            if existing_build[u"build"] == build[u"build"]:
-                break
-        else:
-            self.input[job].append(build)
-
-    @property
-    def output(self):
-        """Getter - specification - output formats and versions to be generated.
-        - formats: html, pdf
-        - versions: full, ...
-
-        :returns: Outputs to be generated.
-        :rtype: dict
-        """
-        return self._specification[u"output"]
-
-    @property
-    def tables(self):
-        """Getter - tables to be generated.
-
-        :returns: List of specifications of tables to be generated.
-        :rtype: list
-        """
-        return self._specification[u"tables"]
-
-    @property
-    def plots(self):
-        """Getter - plots to be generated.
-
-        :returns: List of specifications of plots to be generated.
-        :rtype: list
-        """
-        return self._specification[u"plots"]
-
-    @property
-    def files(self):
-        """Getter - files to be generated.
-
-        :returns: List of specifications of files to be generated.
-        :rtype: list
-        """
-        return self._specification[u"files"]
-
-    @property
-    def cpta(self):
-        """Getter - Continuous Performance Trending and Analysis to be
-        generated.
-
-        :returns: List of specifications of Continuous Performance Trending and
-            Analysis to be generated.
-        :rtype: list
-        """
-        return self._specification[u"cpta"]
-
-    def set_input_state(self, job, build_nr, state):
-        """Set the state of the input.
-
-        :param job: Job name.
-        :param build_nr: Build number.
-        :param state: The new input state.
-        :type job: str
-        :type build_nr: int
-        :type state: str
-        :raises: PresentationError if wrong job and/or build is provided.
-        """
-
-        try:
-            for build in self.input[job]:
-                if build[u"build"] == build_nr:
-                    build[u"status"] = state
-                    break
-            else:
-                raise PresentationError(
-                    f"Build {build_nr} is not defined for job {job} in "
-                    f"specification file."
-                )
-        except KeyError:
-            raise PresentationError(
-                f"Job {job} and build {build_nr} is not defined in "
-                f"specification file."
-            )
-
-    def set_input_file_name(self, job, build_nr, file_name):
-        """Set the file name for the input.
-
-        :param job: Job name.
-        :param build_nr: Build number.
-        :param file_name: The new file name.
-        :type job: str
-        :type build_nr: int
-        :type file_name: str
-        :raises: PresentationError if wrong job and/or build is provided.
-        """
-
-        try:
-            for build in self.input[job]:
-                if build[u"build"] == build_nr:
-                    build[u"file-name"] = file_name
-                    break
-            else:
-                raise PresentationError(
-                    f"Build {build_nr} is not defined for job {job} in "
-                    f"specification file."
-                )
-        except KeyError:
-            raise PresentationError(
-                f"Job {job} and build {build_nr} is not defined in "
-                f"specification file."
-            )
-
-    def _get_build_number(self, job, build_type):
-        """Get the number of the job defined by its name:
-         - lastSuccessfulBuild
-         - lastCompletedBuild
-
-        :param job: Job name.
-        :param build_type: Build type:
-         - lastSuccessfulBuild
-         - lastCompletedBuild
-        :type job" str
-        :raises PresentationError: If it is not possible to get the build
-            number.
-        :returns: The build number.
-        :rtype: int
-        """
-
-        # defined as a range <start, end>
-        if build_type == u"lastSuccessfulBuild":
-            # defined as a range <start, lastSuccessfulBuild>
-            ret_code, build_nr, _ = get_last_successful_build_nr(
-                self.environment[u"urls"][u"URL[JENKINS,CSIT]"], job)
-        elif build_type == u"lastCompletedBuild":
-            # defined as a range <start, lastCompletedBuild>
-            ret_code, build_nr, _ = get_last_completed_build_number(
-                self.environment[u"urls"][u"URL[JENKINS,CSIT]"], job)
-        else:
-            raise PresentationError(f"Not supported build type: {build_type}")
-        if ret_code != 0:
-            raise PresentationError(
-                f"Not possible to get the build number of {job}."
-            )
-        try:
-            build_nr = int(build_nr)
-            return build_nr
-        except ValueError as err:
-            raise PresentationError(
-                f"Not possible to get the build number of {job}. Reason:\n"
-                f"{repr(err)}"
-            )
-
-    def _get_type_index(self, item_type):
-        """Get index of item type (environment, input, output, ...) in
-        specification YAML file.
-
-        :param item_type: Item type: Top level items in specification YAML file,
-            e.g.: environment, input, output.
-        :type item_type: str
-        :returns: Index of the given item type.
-        :rtype: int
-        """
-
-        index = 0
-        for item in self._cfg_yaml:
-            if item[u"type"] == item_type:
-                return index
-            index += 1
-        return None
-
-    def _find_tag(self, text):
-        """Find the first tag in the given text. The tag is enclosed by the
-        TAG_OPENER and TAG_CLOSER.
-
-        :param text: Text to be searched.
-        :type text: str
-        :returns: The tag, or None if not found.
-        :rtype: str
-        """
-        try:
-            start = text.index(self.TAG_OPENER)
-            end = text.index(self.TAG_CLOSER, start + 1) + 1
-            return text[start:end]
-        except ValueError:
-            return None
-
-    def _replace_tags(self, data, src_data=None):
-        """Replace tag(s) in the data by their values.
-
-        :param data: The data where the tags will be replaced by their values.
-        :param src_data: Data where the tags are defined. It is dictionary where
-            the key is the tag and the value is the tag value. If not given,
-            'data' is used instead.
-        :type data: str, list or dict
-        :type src_data: dict
-        :returns: Data with the tags replaced.
-        :rtype: str, list or dict
-        :raises: PresentationError if it is not possible to replace the tag or
-            the data is not the supported data type (str, list or dict).
-        """
-
-        if src_data is None:
-            src_data = data
-
-        if isinstance(data, str):
-            tag = self._find_tag(data)
-            if tag is not None:
-                data = data.replace(tag, src_data[tag[1:-1]])
-            return data
-
-        if isinstance(data, list):
-            new_list = list()
-            for item in data:
-                new_list.append(self._replace_tags(item, src_data))
-            return new_list
-
-        if isinstance(data, dict):
-            counter = 0
-            for key, value in data.items():
-                tag = self._find_tag(value)
-                if tag is not None:
-                    try:
-                        data[key] = value.replace(tag, src_data[tag[1:-1]])
-                        counter += 1
-                    except KeyError:
-                        raise PresentationError(
-                            f"Not possible to replace the tag {tag}"
-                        )
-            if counter:
-                self._replace_tags(data, src_data)
-            return data
-
-        raise PresentationError(u"Replace tags: Not supported data type.")
-
-    def _parse_env(self):
-        """Parse environment specification in the specification YAML file.
-        """
-
-        logging.info(u"Parsing specification: ENVIRONMENT")
-
-        idx = self._get_type_index(u"environment")
-        if idx is None:
-            return
-
-        self._specification[u"environment"][u"spec-files"] = \
-            self._cfg_yaml[idx].get(u"spec-files", None)
-
-        try:
-            self._specification[u"environment"][u"paths"] = \
-                self._replace_tags(self._cfg_yaml[idx][u"paths"])
-        except KeyError:
-            self._specification[u"environment"][u"paths"] = None
-
-        self._specification[u"environment"][u"data-sources"] = \
-            self._cfg_yaml[idx].get(u"data-sources", tuple())
-        # Add statistics:
-        for source in self._specification[u"environment"][u"data-sources"]:
-            source[u"successful-downloads"] = 0
-
-        self._specification[u"environment"][u"make-dirs"] = \
-            self._cfg_yaml[idx].get(u"make-dirs", None)
-
-        self._specification[u"environment"][u"remove-dirs"] = \
-            self._cfg_yaml[idx].get(u"remove-dirs", None)
-
-        self._specification[u"environment"][u"build-dirs"] = \
-            self._cfg_yaml[idx].get(u"build-dirs", None)
-
-        self._specification[u"environment"][u"testbeds"] = \
-            self._cfg_yaml[idx].get(u"testbeds", None)
-
-        self._specification[u"environment"][u"limits"] = \
-            self._cfg_yaml[idx].get(u"limits", None)
-
-        self._specification[u"environment"][u"urls"] = \
-            self._cfg_yaml[idx].get(u"urls", None)
-
-        self._specification[u"environment"][u"archive-inputs"] = \
-            self._cfg_yaml[idx].get(u"archive-inputs", False)
-
-        self._specification[u"environment"][u"reverse-input"] = \
-            self._cfg_yaml[idx].get(u"reverse-input", False)
-
-        self._specification[u"environment"][u"time-period"] = \
-            self._cfg_yaml[idx].get(u"time-period", None)
-
-        self._specification[u"environment"][u"alerting"] = \
-            self._cfg_yaml[idx].get(u"alerting", None)
-
-        self._specification[u"environment"][u"mapping-file"] = \
-            self._cfg_yaml[idx].get(u"mapping-file", None)
-
-        self._specification[u"environment"][u"ignore-list"] = \
-            self._cfg_yaml[idx].get(u"ignore-list", None)
-
-        # Mapping table:
-        self._load_mapping_table()
-
-        # Ignore list:
-        self._load_ignore_list()
-
-    def _parse_layouts(self):
-        """Parse layouts specification in the specification YAML file.
-        """
-
-        logging.info(u"Parsing specification: LAYOUTS")
-
-        idx = self._get_type_index(u"layouts")
-        if idx is None:
-            return
-
-        try:
-            self._specification[u"layouts"] = self._cfg_yaml[idx]
-        except KeyError:
-            raise PresentationError(u"No layouts defined.")
-
-    def _parse_data_sets(self):
-        """Parse data sets specification in the specification YAML file.
-        """
-
-        logging.info(u"Parsing specification: DATA SETS")
-
-        idx = self._get_type_index(u"data-sets")
-        if idx is None:
-            return
-
-        try:
-            self._specification[u"data_sets"] = self._cfg_yaml[idx]
-        except KeyError:
-            raise PresentationError(u"No Data sets defined.")
-
-        # Replace ranges by lists
-        for set_name, data_set in self.data_sets.items():
-            if not isinstance(data_set, dict):
-                continue
-            for job, builds in data_set.items():
-                if not builds:
-                    continue
-                if isinstance(builds, dict):
-                    build_end = builds.get(u"end", None)
-                    max_builds = builds.get(u"max-builds", None)
-                    reverse = builds.get(u"reverse", False)
-                    try:
-                        build_end = int(build_end)
-                    except ValueError:
-                        # defined as a range <start, build_type>
-                        build_end = self._get_build_number(job, build_end)
-                    builds = list(range(builds[u"start"], build_end + 1))
-                    if max_builds and max_builds < len(builds):
-                        builds = builds[-max_builds:]
-                    if reverse:
-                        builds.reverse()
-                    self.data_sets[set_name][job] = builds
-                elif isinstance(builds, list):
-                    for idx, item in enumerate(builds):
-                        try:
-                            builds[idx] = int(item)
-                        except ValueError:
-                            # defined as a range <build_type>
-                            builds[idx] = self._get_build_number(job, item)
-
-        # Add sub-sets to sets (only one level):
-        for set_name, data_set in self.data_sets.items():
-            if isinstance(data_set, list):
-                new_set = dict()
-                for item in data_set:
-                    try:
-                        for key, val in self.data_sets[item].items():
-                            new_set[key] = val
-                    except KeyError:
-                        raise PresentationError(
-                            f"Data set {item} is not defined."
-                        )
-                self.data_sets[set_name] = new_set
-
-    def _load_mapping_table(self):
-        """Load a mapping table if it is specified. If not, use empty dict.
-        """
-
-        mapping_file_name = self.environment.get(u"mapping-file", None)
-        if mapping_file_name:
-            try:
-                with open(mapping_file_name, u'r') as mfile:
-                    mapping = load(mfile, Loader=FullLoader)
-                    # Make sure everything is lowercase
-                    self.environment[u"mapping"] = \
-                        {key.lower(): val.lower() for key, val in
-                         mapping.items()}
-                logging.debug(f"Loaded mapping table:\n{mapping}")
-            except (YAMLError, IOError) as err:
-                raise PresentationError(
-                    msg=f"An error occurred while parsing the mapping file "
-                    f"{mapping_file_name}",
-                    details=repr(err)
-                )
-        else:
-            self.environment[u"mapping"] = dict()
-
-    def _load_ignore_list(self):
-        """Load an ignore list if it is specified. If not, use empty list.
-        """
-
-        ignore_list_name = self.environment.get(u"ignore-list", None)
-        if ignore_list_name:
-            try:
-                with open(ignore_list_name, u'r') as ifile:
-                    ignore = load(ifile, Loader=FullLoader)
-                    # Make sure everything is lowercase
-                    self.environment[u"ignore"] = \
-                        [item.lower() for item in ignore]
-                logging.debug(f"Loaded ignore list:\n{ignore}")
-            except (YAMLError, IOError) as err:
-                raise PresentationError(
-                    msg=f"An error occurred while parsing the ignore list file "
-                    f"{ignore_list_name}.",
-                    details=repr(err)
-                )
-        else:
-            self.environment[u"ignore"] = list()
-
-    def _parse_output(self):
-        """Parse output specification in the specification YAML file.
-
-        :raises: PresentationError if there is no output defined.
-        """
-
-        logging.info(u"Parsing specification: OUTPUT")
-
-        idx = self._get_type_index(u"output")
-        if idx is None:
-            raise PresentationError(u"No output defined.")
-
-        try:
-            self._specification[u"output"] = self._cfg_yaml[idx]
-        except (KeyError, IndexError):
-            raise PresentationError(u"No output defined.")
-
-    def _parse_static(self):
-        """Parse specification of the static content in the specification YAML
-        file.
-        """
-
-        logging.info(u"Parsing specification: STATIC CONTENT")
-
-        idx = self._get_type_index(u"static")
-        if idx is None:
-            logging.warning(u"No static content specified.")
-
-        for key, value in self._cfg_yaml[idx].items():
-            if isinstance(value, str):
-                try:
-                    self._cfg_yaml[idx][key] = self._replace_tags(
-                        value, self._specification[u"environment"][u"paths"])
-                except KeyError:
-                    pass
-
-        self._specification[u"static"] = self._cfg_yaml[idx]
-
-    def _parse_elements_tables(self, table):
-        """Parse tables from the specification YAML file.
-
-        :param table: Table to be parsed from the specification file.
-        :type table: dict
-        :raises PresentationError: If wrong data set is used.
-        """
-
-        try:
-            table[u"template"] = self._replace_tags(
-                table[u"template"],
-                self._specification[u"environment"][u"paths"])
-        except KeyError:
-            pass
-
-        # Add data sets
-        try:
-            for item in (u"reference", u"compare"):
-                if table.get(item, None):
-                    data_set = table[item].get(u"data", None)
-                    if isinstance(data_set, str):
-                        table[item][u"data"] = self.data_sets[data_set]
-                    data_set = table[item].get(u"data-replacement", None)
-                    if isinstance(data_set, str):
-                        table[item][u"data-replacement"] = \
-                            self.data_sets[data_set]
-
-            if table.get(u"columns", None):
-                for i in range(len(table[u"columns"])):
-                    data_set = table[u"columns"][i].get(u"data-set", None)
-                    if isinstance(data_set, str):
-                        table[u"columns"][i][u"data-set"] = \
-                            self.data_sets[data_set]
-                    data_set = table[u"columns"][i].get(
-                        u"data-replacement", None)
-                    if isinstance(data_set, str):
-                        table[u"columns"][i][u"data-replacement"] = \
-                            self.data_sets[data_set]
-
-        except KeyError:
-            raise PresentationError(
-                f"Wrong data set used in {table.get(u'title', u'')}."
-            )
-
-        self._specification[u"tables"].append(table)
-
-    def _parse_elements_plots(self, plot):
-        """Parse plots from the specification YAML file.
-
-        :param plot: Plot to be parsed from the specification file.
-        :type plot: dict
-        :raises PresentationError: If plot layout is not defined.
-        """
-
-        # Add layout to the plots:
-        layout = plot[u"layout"].get(u"layout", None)
-        if layout is not None:
-            plot[u"layout"].pop(u"layout")
-            try:
-                for key, val in self.layouts[layout].items():
-                    plot[u"layout"][key] = val
-            except KeyError:
-                raise PresentationError(f"Layout {layout} is not defined.")
-        self._specification[u"plots"].append(plot)
-
-    def _parse_elements_files(self, file):
-        """Parse files from the specification YAML file.
-
-        :param file: File to be parsed from the specification file.
-        :type file: dict
-        """
-
-        try:
-            file[u"dir-tables"] = self._replace_tags(
-                file[u"dir-tables"],
-                self._specification[u"environment"][u"paths"])
-        except KeyError:
-            pass
-        self._specification[u"files"].append(file)
-
-    def _parse_elements_cpta(self, cpta):
-        """Parse cpta from the specification YAML file.
-
-        :param cpta: cpta to be parsed from the specification file.
-        :type cpta: dict
-        :raises PresentationError: If wrong data set is used or if plot layout
-            is not defined.
-        """
-
-        for plot in cpta[u"plots"]:
-            # Add layout to the plots:
-            layout = plot.get(u"layout", None)
-            if layout is not None:
-                try:
-                    plot[u"layout"] = self.layouts[layout]
-                except KeyError:
-                    raise PresentationError(f"Layout {layout} is not defined.")
-            # Add data sets:
-            if isinstance(plot.get(u"data", None), str):
-                data_set = plot[u"data"]
-                try:
-                    plot[u"data"] = self.data_sets[data_set]
-                except KeyError:
-                    raise PresentationError(
-                        f"Data set {data_set} is not defined."
-                    )
-        self._specification[u"cpta"] = cpta
-
-    def _parse_elements(self):
-        """Parse elements (tables, plots, ..) specification in the specification
-        YAML file.
-        """
-
-        logging.info(u"Parsing specification: ELEMENTS")
-
-        count = 1
-        for element in self._cfg_yaml:
-
-            # Replace tags:
-            try:
-                element[u"output-file"] = self._replace_tags(
-                    element[u"output-file"],
-                    self.environment[u"paths"]
-                )
-            except KeyError:
-                pass
-
-            try:
-                element[u"input-file"] = self._replace_tags(
-                    element[u"input-file"],
-                    self.environment[u"paths"]
-                )
-            except KeyError:
-                pass
-
-            try:
-                element[u"output-file-links"] = self._replace_tags(
-                    element[u"output-file-links"],
-                    self.environment[u"paths"]
-                )
-            except KeyError:
-                pass
-
-            # Add data sets to the elements:
-            if isinstance(element.get(u"data", None), str):
-                data_set = element[u"data"]
-                try:
-                    element[u"data"] = self.data_sets[data_set]
-                except KeyError:
-                    raise PresentationError(
-                        f"Data set {data_set} is not defined."
-                    )
-            elif isinstance(element.get(u"data", None), list):
-                new_list = list()
-                for item in element[u"data"]:
-                    try:
-                        new_list.append(self.data_sets[item])
-                    except KeyError:
-                        raise PresentationError(
-                            f"Data set {item} is not defined."
-                        )
-                element[u"data"] = new_list
-
-            # Parse elements:
-            if element[u"type"] == u"table":
-                logging.info(f"  {count:3d} Processing a table ...")
-                self._parse_elements_tables(element)
-                count += 1
-            elif element[u"type"] == u"plot":
-                logging.info(f"  {count:3d} Processing a plot ...")
-                self._parse_elements_plots(element)
-                count += 1
-            elif element[u"type"] == u"file":
-                logging.info(f"  {count:3d} Processing a file ...")
-                self._parse_elements_files(element)
-                count += 1
-            elif element[u"type"] == u"cpta":
-                logging.info(
-                    f"  {count:3d} Processing Continuous Performance Trending "
-                    f"and Analysis ..."
-                )
-                self._parse_elements_cpta(element)
-                count += 1
-
-    def _prepare_input(self):
-        """Use information from data sets and generate list of jobs and builds
-        to download.
-        """
-
-        logging.info(u"Parsing specification: INPUT")
-
-        for data_set in self.data_sets.values():
-            if data_set == "data-sets":
-                continue
-            for job, builds in data_set.items():
-                for build in builds:
-                    self.add_build(
-                        job,
-                        {
-                            u"build": build,
-                            u"status": None,
-                            u"file-name": None,
-                            u"source": None
-                        }
-                    )
-
-        if self.environment[u"reverse-input"]:
-            for builds in self.input.values():
-                builds.sort(key=lambda k: k[u"build"], reverse=True)
-
-    def read_specification(self):
-        """Parse specification in the specification YAML files.
-
-        :raises: PresentationError if an error occurred while parsing the
-            specification file.
-        """
-
-        # It always starts with environment.yaml file, it must be present.
-        spec_file = join(self._cfg_dir, u"environment.yaml")
-        logging.info(f"Reading {spec_file}")
-        if not exists(spec_file):
-            raise PresentationError(f"The file {spec_file} does not exist.")
-
-        with open(spec_file, u"r") as file_read:
-            try:
-                self._cfg_yaml = load(file_read, Loader=FullLoader)
-            except YAMLError as err:
-                raise PresentationError(
-                    f"An error occurred while parsing the specification file "
-                    f"{spec_file}",
-                    details=repr(err)
-                )
-
-        # Load the other specification files specified in the environment.yaml
-        idx = self._get_type_index(u"environment")
-        if idx is None:
-            raise PresentationError(
-                f"No environment defined in the file {spec_file}"
-            )
-        for spec_file in self._cfg_yaml[idx].get(u"spec-files", tuple()):
-            logging.info(f"Reading {spec_file}")
-            if not exists(spec_file):
-                raise PresentationError(f"The file {spec_file} does not exist.")
-            spec = None
-            with open(spec_file, u"r") as file_read:
-                try:
-                    spec = load(file_read, Loader=FullLoader)
-                except YAMLError as err:
-                    raise PresentationError(
-                        f"An error occurred while parsing the specification "
-                        f"file {spec_file}",
-                        details=repr(err)
-                    )
-            if spec:
-                self._cfg_yaml.extend(spec)
-
-        self._parse_env()
-        self._parse_layouts()
-        self._parse_data_sets()
-        self._parse_output()
-        self._parse_static()
-        self._parse_elements()
-        self._prepare_input()
-
-        logging.debug(f"Specification: \n{pformat(self.specification)}")