| #!/usr/bin/env python |
| """ |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you 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. |
| |
| """ |
| |
| import re |
| import socket |
| from resource_management import * |
| |
| def escape_yaml_propetry(value): |
| # pre-process value for any "_HOST" tokens |
| value = value.replace('_HOST', socket.getfqdn()) |
| |
| unquouted = False |
| unquouted_values = ["null","Null","NULL","true","True","TRUE","false","False","FALSE","YES","Yes","yes","NO","No","no","ON","On","on","OFF","Off","off"] |
| |
| if value in unquouted_values: |
| unquouted = True |
| |
| # if is list [a,b,c] |
| if re.match('^\w*\[.+\]\w*$', value): |
| unquouted = True |
| |
| # if is map {'a':'b'} |
| if re.match('^\w*\{.+\}\w*$', value): |
| unquouted = True |
| |
| try: |
| int(value) |
| unquouted = True |
| except ValueError: |
| pass |
| |
| try: |
| float(value) |
| unquouted = True |
| except ValueError: |
| pass |
| |
| if not unquouted: |
| value = value.replace("'","''") |
| value = "'"+value+"'" |
| |
| return value |
| |
| def yaml_inline_template(configurations): |
| return source.InlineTemplate('''{% for key, value in configurations_dict.items() %}{{ key }}: {{ escape_yaml_propetry(value) }} |
| {% endfor %}''', configurations_dict=configurations, extra_imports=[escape_yaml_propetry]) |
| |
| def yaml_config( |
| filename, |
| configurations = None, |
| conf_dir = None, |
| mode = None, |
| owner = None, |
| group = None |
| ): |
| config_content = yaml_inline_template(configurations) |
| |
| File (format("{conf_dir}/{filename}"), |
| content = config_content, |
| owner = owner, |
| group = group, |
| mode = mode |
| ) |