diff options
Diffstat (limited to 'openstack/common/report/views/text/generic.py')
| -rw-r--r-- | openstack/common/report/views/text/generic.py | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/openstack/common/report/views/text/generic.py b/openstack/common/report/views/text/generic.py deleted file mode 100644 index 3b30a070..00000000 --- a/openstack/common/report/views/text/generic.py +++ /dev/null @@ -1,202 +0,0 @@ -# Copyright 2013 Red Hat, Inc. -# -# 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. - -"""Provides generic text views - -This modules provides several generic views for -serializing models into human-readable text. -""" - -import collections as col - -import six - - -class MultiView(object): - """A Text View Containing Multiple Views - - This view simply serializes each - value in the data model, and then - joins them with newlines (ignoring - the key values altogether). This is - useful for serializing lists of models - (as array-like dicts). - """ - - def __call__(self, model): - res = [str(model[key]) for key in model] - return "\n".join(res) - - -class BasicKeyValueView(object): - """A Basic Key-Value Text View - - This view performs a naive serialization of a model into - text using a basic key-value method, where each - key-value pair is rendered as "key = str(value)" - """ - - def __call__(self, model): - res = "" - for key in model: - res += "{key} = {value}\n".format(key=key, value=model[key]) - - return res - - -class KeyValueView(object): - """A Key-Value Text View - - This view performs an advanced serialization of a model - into text by following the following set of rules: - - key : text - key = text - - rootkey : Mapping - :: - - rootkey = - serialize(key, value) - - key : Sequence - :: - - key = - serialize(item) - - :param str indent_str: the string used to represent one "indent" - :param str key_sep: the separator to use between keys and values - :param str dict_sep: the separator to use after a dictionary root key - :param str list_sep: the separator to use after a list root key - :param str anon_dict: the "key" to use when there is a dict in a list - (does not automatically use the dict separator) - :param before_dict: content to place on the line(s) before the a dict - root key (use None to avoid inserting an extra line) - :type before_dict: str or None - :param before_list: content to place on the line(s) before the a list - root key (use None to avoid inserting an extra line) - :type before_list: str or None - """ - - def __init__(self, - indent_str=' ', - key_sep=' = ', - dict_sep=' = ', - list_sep=' = ', - anon_dict='[dict]', - before_dict=None, - before_list=None): - self.indent_str = indent_str - self.key_sep = key_sep - self.dict_sep = dict_sep - self.list_sep = list_sep - self.anon_dict = anon_dict - self.before_dict = before_dict - self.before_list = before_list - - def __call__(self, model): - def serialize(root, rootkey, indent): - res = [] - if rootkey is not None: - res.append((self.indent_str * indent) + rootkey) - - if isinstance(root, col.Mapping): - if rootkey is None and indent > 0: - res.append((self.indent_str * indent) + self.anon_dict) - elif rootkey is not None: - res[0] += self.dict_sep - if self.before_dict is not None: - res.insert(0, self.before_dict) - - for key in sorted(root): - res.extend(serialize(root[key], key, indent + 1)) - elif (isinstance(root, col.Sequence) and - not isinstance(root, six.string_types)): - if rootkey is not None: - res[0] += self.list_sep - if self.before_list is not None: - res.insert(0, self.before_list) - - for val in sorted(root, key=str): - res.extend(serialize(val, None, indent + 1)) - else: - str_root = str(root) - if '\n' in str_root: - # we are in a submodel - if rootkey is not None: - res[0] += self.dict_sep - - list_root = [(self.indent_str * (indent + 1)) + line - for line in str_root.split('\n')] - res.extend(list_root) - else: - # just a normal key or list entry - try: - res[0] += self.key_sep + str_root - except IndexError: - res = [(self.indent_str * indent) + str_root] - - return res - - return "\n".join(serialize(model, None, -1)) - - -class TableView(object): - """A Basic Table Text View - - This view performs serialization of data into a basic table with - predefined column names and mappings. Column width is auto-calculated - evenly, column values are automatically truncated accordingly. Values - are centered in the columns. - - :param [str] column_names: the headers for each of the columns - :param [str] column_values: the item name to match each column to in - each row - :param str table_prop_name: the name of the property within the model - containing the row models - """ - - def __init__(self, column_names, column_values, table_prop_name): - self.table_prop_name = table_prop_name - self.column_names = column_names - self.column_values = column_values - self.column_width = (72 - len(column_names) + 1) // len(column_names) - - column_headers = "|".join( - "{ch[" + str(n) + "]: ^" + str(self.column_width) + "}" - for n in range(len(column_names)) - ) - - # correct for float-to-int roundoff error - test_fmt = column_headers.format(ch=column_names) - if len(test_fmt) < 72: - column_headers += ' ' * (72 - len(test_fmt)) - - vert_divider = '-' * 72 - self.header_fmt_str = column_headers + "\n" + vert_divider + "\n" - - self.row_fmt_str = "|".join( - "{cv[" + str(n) + "]: ^" + str(self.column_width) + "}" - for n in range(len(column_values)) - ) - - def __call__(self, model): - res = self.header_fmt_str.format(ch=self.column_names) - for raw_row in model[self.table_prop_name]: - row = [str(raw_row[prop_name]) for prop_name in self.column_values] - # double format is in case we have roundoff error - res += '{0: <72}\n'.format(self.row_fmt_str.format(cv=row)) - - return res |