1 files changed, 154 insertions, 0 deletions
diff --git a/utils/infra_setup/heat/template.py b/utils/infra_setup/heat/template.py
new file mode 100755
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+++ b/utils/infra_setup/heat/template.py
@@ -0,0 +1,154 @@
+##############################################################################
+# Copyright (c) 2016 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+"""to create heat templates from the base template
+"""
+import os
+import json
+import shutil
+import common
+import consts.parameters as parameters
+
+class TreeNode:
+
+    def __init__(self):
+        self.up = None
+        self.down = []
+        self.variable_name = ''
+        self.variable_value = 0
+
+    def add_child(self, node):
+        node.up = self
+        self.down.append(node)
+
+    def get_parent(self):
+        return self.up
+
+    def get_children(self):
+        if len(self.down) == 0:
+            return []
+        return self.down
+
+    def get_variable_name(self):
+        return self.variable_name
+
+    def get_variable_value(self):
+        return self.variable_value
+
+    def set_variable_name(self, name):
+        self.variable_name = name
+
+    def set_variable_value(self, value):
+        self.variable_value = value
+
+    def get_path(self):
+        ret_val = []
+        if not self.up:
+            ret_val.append(self)
+            return ret_val
+        for node in self.up.get_path():
+            ret_val.append(node)
+        ret_val.append(self)
+        return ret_val
+
+    def __str__(self):
+        return str(self.variable_name) + " --> " + str(self.variable_value)
+
+    def __repr__(self):
+        return str(self.variable_name) + " = " + str(self.variable_value)
+
+    @staticmethod
+    def _get_leaves(node, leaves):
+        children = node.get_children()
+        if len(children) == 0:
+            leaves.append(node)
+            return
+        for child in children:
+            TreeNode._get_leaves(child, leaves)
+
+    @staticmethod
+    def get_leaves(node):
+        leaves = list()
+        TreeNode._get_leaves(node, leaves)
+        return leaves
+
+template_name = parameters.TEST_TEMPLATE_NAME
+
+def generates_templates(base_heat_template, deployment_configuration):
+    # parameters loaded from file
+    template_dir = common.get_template_dir()
+    template_extension = parameters.TEMPLATE_EXTENSION
+    template_base_name = base_heat_template
+
+    variables = deployment_configuration
+
+    # Delete the templates generated in previous running
+    common.LOG.info("Removing the heat templates already generated")
+    command = "rm {}{}_*".format(template_dir, template_name)
+    os.system(command)
+
+    # Creation of the tree with all the new configurations
+    common.LOG.info("Creation of a tree with all new configurations")
+    tree = TreeNode()
+    for variable in variables:
+        leaves = TreeNode.get_leaves(tree)
+        common.LOG.debug("LEAVES: " + str(leaves))
+        common.LOG.debug("VALUES: " + str(variables[variable]))
+
+        for value in variables[variable]:
+            for leaf in leaves:
+                new_node = TreeNode()
+                new_node.set_variable_name(variable)
+                new_node.set_variable_value(value)
+                leaf.add_child(new_node)
+
+    common.LOG.debug("CONFIGURATION TREE: " + str(tree))
+
+    common.LOG.info("Heat Template and metadata file creation")
+    leaves = TreeNode.get_leaves(tree)
+    counter = 1
+    for leaf in leaves:
+        heat_template_vars = leaf.get_path()
+        if os.path.isabs(template_base_name):
+            base_template = template_base_name
+        else:
+            base_template = template_dir + template_base_name
+        new_template = template_dir + template_name
+        new_template += "_" + str(counter) + template_extension
+        shutil.copy(base_template, new_template)
+
+        metadata = dict()
+        for var in heat_template_vars:
+            if var.get_variable_name():
+                common.replace_in_file(new_template, "#" +
+                                       var.get_variable_name(),
+                                       var.get_variable_value())
+                metadata[var.get_variable_name()] = var.get_variable_value()
+
+        # Save the metadata on a JSON file
+        with open(new_template + ".json", 'w') as outfile:
+            json.dump(metadata, outfile)
+
+        common.LOG.debug("Heat Templates and Metadata file " + str(counter) +
+                         " created")
+        counter += 1
+
+    # Creation of the template files
+    common.LOG.info(str(counter - 1) + " Heat Templates and Metadata files "
+                                       "created")
+
+
+def get_all_heat_templates(template_dir, template_extension):
+    template_files = list()
+    for dirname, dirnames, filenames in os.walk(template_dir):
+        for filename in filenames:
+            if template_extension in filename and filename.endswith(template_extension) and template_name in filename:
+                template_files.append(filename)
+    template_files.sort()
+    return template_files