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Diffstat (limited to 'openstack/common/report/views/jinja_view.py')
| -rw-r--r-- | openstack/common/report/views/jinja_view.py | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/openstack/common/report/views/jinja_view.py b/openstack/common/report/views/jinja_view.py deleted file mode 100644 index 5f57dc34..00000000 --- a/openstack/common/report/views/jinja_view.py +++ /dev/null @@ -1,137 +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 Jinja Views - -This module provides views that utilize the Jinja templating -system for serialization. For more information on Jinja, please -see http://jinja.pocoo.org/ . -""" - -import copy - -import jinja2 - - -class JinjaView(object): - """A Jinja View - - This view renders the given model using the provided Jinja - template. The template can be given in various ways. - If the `VIEw_TEXT` property is defined, that is used as template. - Othewise, if a `path` parameter is passed to the constructor, that - is used to load a file containing the template. If the `path` - parameter is None, the `text` parameter is used as the template. - - The leading newline character and trailing newline character are stripped - from the template (provided they exist). Baseline indentation is - also stripped from each line. The baseline indentation is determined by - checking the indentation of the first line, after stripping off the leading - newline (if any). - - :param str path: the path to the Jinja template - :param str text: the text of the Jinja template - """ - - def __init__(self, path=None, text=None): - try: - self._text = self.VIEW_TEXT - except AttributeError: - if path is not None: - with open(path, 'r') as f: - self._text = f.read() - elif text is not None: - self._text = text - else: - self._text = "" - - if self._text[0] == "\n": - self._text = self._text[1:] - - newtext = self._text.lstrip() - amt = len(self._text) - len(newtext) - if (amt > 0): - base_indent = self._text[0:amt] - lines = self._text.splitlines() - newlines = [] - for line in lines: - if line.startswith(base_indent): - newlines.append(line[amt:]) - else: - newlines.append(line) - self._text = "\n".join(newlines) - - if self._text[-1] == "\n": - self._text = self._text[:-1] - - self._regentemplate = True - self._templatecache = None - - def __call__(self, model): - return self.template.render(**model) - - def __deepcopy__(self, memodict): - res = object.__new__(JinjaView) - res._text = copy.deepcopy(self._text, memodict) - - # regenerate the template on a deepcopy - res._regentemplate = True - res._templatecache = None - - return res - - @property - def template(self): - """Get the Compiled Template - - Gets the compiled template, using a cached copy if possible - (stored in attr:`_templatecache`) or otherwise recompiling - the template if the compiled template is not present or is - invalid (due to attr:`_regentemplate` being set to True). - - :returns: the compiled Jinja template - :rtype: :class:`jinja2.Template` - """ - - if self._templatecache is None or self._regentemplate: - self._templatecache = jinja2.Template(self._text) - self._regentemplate = False - - return self._templatecache - - def _gettext(self): - """Get the Template Text - - Gets the text of the current template - - :returns: the text of the Jinja template - :rtype: str - """ - - return self._text - - def _settext(self, textval): - """Set the Template Text - - Sets the text of the current template, marking it - for recompilation next time the compiled template - is retrived via attr:`template` . - - :param str textval: the new text of the Jinja template - """ - - self._text = textval - self.regentemplate = True - - text = property(_gettext, _settext) |