1 # Copyright (c) 2015 Intel Research and Development Ireland Ltd.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
17 Generation of the heat templates from the base template
23 from experimental_framework import common
24 from experimental_framework.constants import framework_parameters as fp
29 This class represent the node of the configuration tree.\
30 Each node represents a single configuration value for a single
31 configuration parameter.
37 self.variable_name = ''
38 self.variable_value = 0
40 def add_child(self, node):
42 Adds a node as a child for the current node
43 :param node: node to be added as a child (type: TreeNode)
47 self.down.append(node)
51 Returns the parent node of the current one
52 :return type: TreeNode
56 def get_children(self):
58 Returns the children of the current node
59 :return type: list of TreeNode
61 if len(self.down) == 0:
66 def get_variable_name(self):
68 Returns the name of the variable correspondent to the current node
71 return self.variable_name
73 def get_variable_value(self):
75 Returns the value of the variable correspondent to the current node
76 :return type: str or int
78 return self.variable_value
80 def set_variable_name(self, name):
82 Sets the name of the variable for the current node
83 :param name: Name of the variable (type: str)
86 self.variable_name = name
88 def set_variable_value(self, value):
90 Sets the value of the variable for the current node
91 :param value: value of the variable (type: str)
94 self.variable_value = value
98 Returns all the path from the current node to the root of the tree.
99 :return type: list of TreeNode
105 for node in self.up.get_path():
111 return str(self.variable_name) + " --> " + str(self.variable_value)
114 return str(self.variable_name) + " = " + str(self.variable_value)
117 def _get_leaves(node, leaves):
119 Returns all the leaves of a tree.
120 It changes the "leaves" list.
121 :param node: root of the tree (type: TreeNode)
122 :param leaves: partial list of leaves (type: list of TreeNode)
125 children = node.get_children()
126 if len(children) == 0:
129 for child in children:
130 TreeNode._get_leaves(child, leaves)
133 def get_leaves(node):
135 Returns all the leaves of a tree.
136 :param node: root of the tree (TreeNode)
140 TreeNode._get_leaves(node, leaves)
144 template_name = fp.EXPERIMENT_TEMPLATE_NAME
147 def generates_templates(base_heat_template, deployment_configuration):
149 Generates the heat templates for the experiments
152 # Load useful parameters from file
153 template_dir = common.get_template_dir()
154 template_file_extension = fp.TEMPLATE_FILE_EXTENSION
155 template_base_name = base_heat_template
157 variables = deployment_configuration
159 # Delete the templates eventually generated in previous running of the
161 common.LOG.info("Removing the heat templates previously generated")
162 command = "rm {}{}_*".format(template_dir, template_name)
165 # Creation of the tree with all the new configurations
166 common.LOG.info("Creation of the tree with all the new configurations")
168 for variable in variables:
169 leaves = TreeNode.get_leaves(tree)
170 common.LOG.debug("LEAVES: " + str(leaves))
171 common.LOG.debug("VALUES: " + str(variables[variable]))
173 for value in variables[variable]:
175 new_node = TreeNode()
176 new_node.set_variable_name(variable)
177 new_node.set_variable_value(value)
178 leaf.add_child(new_node)
180 common.LOG.debug("CONFIGURATION TREE: " + str(tree))
182 common.LOG.info("Heat Template and metadata file creation")
183 leaves = TreeNode.get_leaves(tree)
186 heat_template_vars = leaf.get_path()
187 if os.path.isabs(template_base_name):
188 base_template = template_base_name
190 base_template = template_dir + template_base_name
191 new_template = template_dir + template_name
192 new_template += "_" + str(counter) + template_file_extension
193 shutil.copy(base_template, new_template)
196 for var in heat_template_vars:
197 if var.get_variable_name():
198 common.replace_in_file(new_template, "#" +
199 var.get_variable_name(),
200 var.get_variable_value())
201 metadata[var.get_variable_name()] = var.get_variable_value()
203 # Save the metadata on a JSON file
204 with open(new_template + ".json", 'w') as outfile:
205 json.dump(metadata, outfile)
207 common.LOG.debug("Heat Templates and Metadata file " + str(counter) +
211 # Creation of the template files
212 common.LOG.info(str(counter - 1) + " Heat Templates and Metadata files "
216 def get_all_heat_templates(template_dir, template_file_extension):
218 Loads and returns all the generated heat templates
219 :param template_dir: directory to search in (type: str)
220 :param template_file_extension: extension of the file for templates
224 template_files = list()
225 for dirname, dirnames, filenames in os.walk(template_dir):
226 for filename in filenames:
227 if template_file_extension in filename and \
228 filename.endswith(template_file_extension) and \
229 template_name in filename:
230 template_files.append(filename)
231 template_files.sort()
232 return template_files