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# Copyright 2024 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# """Model objects for dwa.xml contents."""
import os
import sys
sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'common'))
import models
import model_shared
_METRIC_TYPE = models.ObjectNodeType(
'metric',
attributes=[
('name', str, r'^[A-Za-z][A-Za-z0-9_.]*$'),
('semantic_type', str, None),
('enum', str, None),
('expires_after', str, None),
],
alphabetization=[
(model_shared._SUMMARY_TYPE.tag, model_shared._KEEP_ORDER),
],
children=[
models.ChildType(
model_shared._SUMMARY_TYPE.tag, model_shared._SUMMARY_TYPE, \
multiple=False),
])
_STUDY_TYPE = models.ObjectNodeType('study',
attributes=[
('name', str,
r'^[A-Za-z][A-Za-z0-9_.-]*$'),
('semantic_type', str, None),
('enum', str, None),
('expires_after', str, None),
])
_EVENT_TYPE = models.ObjectNodeType(
'event',
attributes=[
('name', str, r'^[A-Za-z][A-Za-z0-9.]*$'),
('singular', str, r'(?i)^(|true|false)$'),
],
alphabetization=[
(model_shared._OWNER_TYPE.tag, model_shared._KEEP_ORDER),
(model_shared._SUMMARY_TYPE.tag, model_shared._KEEP_ORDER),
(_STUDY_TYPE.tag, model_shared._LOWERCASE_FN('name')),
(_METRIC_TYPE.tag, model_shared._LOWERCASE_FN('name')),
],
extra_newlines=(1, 1, 1),
children=[
models.ChildType(model_shared._OWNER_TYPE.tag,
model_shared._OWNER_TYPE,
multiple=True),
models.ChildType(model_shared._SUMMARY_TYPE.tag,
model_shared._SUMMARY_TYPE,
multiple=False),
models.ChildType(_STUDY_TYPE.tag, _STUDY_TYPE, multiple=True),
models.ChildType(_METRIC_TYPE.tag, _METRIC_TYPE, multiple=True),
])
_DWA_CONFIGURATION_TYPE = models.ObjectNodeType(
'dwa-configuration',
alphabetization=[(_EVENT_TYPE.tag, model_shared._LOWERCASE_FN('name'))],
extra_newlines=(2, 1, 1),
indent=False,
children=[
models.ChildType(_EVENT_TYPE.tag, _EVENT_TYPE, multiple=True),
])
DWA_XML_TYPE = models.DocumentType(_DWA_CONFIGURATION_TYPE)
def PrettifyXML(original_xml):
"""Parses the original xml and return a pretty printed version.
Args:
original_xml: A string containing the original xml file contents.
Returns:
A pretty-printed xml string, or None if the config contains errors.
"""
config = DWA_XML_TYPE.Parse(original_xml)
return DWA_XML_TYPE.PrettyPrint(config)
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