RIFT OSM R1 Initial Submission

[osm/SO.git] / rwlaunchpad / plugins / rwlaunchpadtasklet / rift / package / config.py

diff --git a/rwlaunchpad/plugins/rwlaunchpadtasklet/rift/package/config.py b/rwlaunchpad/plugins/rwlaunchpadtasklet/rift/package/config.py
new file mode 100644 (file)
index 0000000..9a06116
--- /dev/null
+++ b/rwlaunchpad/plugins/rwlaunchpadtasklet/rift/package/config.py
@@ -0,0 +1,93 @@
+
+# 
+#   Copyright 2016 RIFT.IO 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.
+#
+
+import re
+import os.path
+
+from . import package
+
+
+class ConfigExtractionError(Exception):
+    pass
+
+
+class PackageConfigExtractor(object):
+    """ This class is reponsible for extracting config data to the correct directory
+
+    In order to remain compatible with the existing ConfigManager, we extract the config
+    to a known location (RIFT-13282)
+    """
+    DEFAULT_INSTALL_DIR = os.path.join(
+            os.environ["RIFT_ARTIFACTS"],
+            "launchpad"
+            )
+
+    CONFIG_REGEX = "{prefix}(ns_config|vnf_config)/(?P<config_name>[^/]+.yaml)$"
+
+    def __init__(self, log, install_dir=DEFAULT_INSTALL_DIR):
+        self._log = log
+        self._install_dir = install_dir
+
+    def _get_rel_dest_path(self, descriptor_id, config_name):
+        dest_rel_path = "libs/{}/config/{}".format(descriptor_id, config_name)
+        dest_path = os.path.join(self._install_dir, dest_rel_path)
+        return dest_path
+
+    @classmethod
+    def package_config_files(cls, package):
+        config_map = {}
+        regex = cls.CONFIG_REGEX.format(prefix=package.prefix)
+
+        for file_name in package.files:
+            match = re.match(
+                    cls.CONFIG_REGEX.format(prefix=package.prefix), file_name,
+                    )
+            if match is None:
+                continue
+
+            config_name = match.group("config_name")
+
+            config_map[config_name] = file_name
+
+        return config_map
+
+    def get_extracted_config_path(self, package_id, config_name):
+        return os.path.join(
+                self._get_rel_dest_path(package_id, os.path.basename(config_name)),
+                )
+
+    def extract_configs(self, pkg):
+        """ Extract any configuration files from the DescriptorPackage
+
+        Arguments:
+            pkg - A DescriptorPackage
+
+        Raises:
+            ConfigExtractionError - The configuration could not be extracted
+        """
+        descriptor_id = pkg.descriptor_id
+
+        config_files = PackageConfigExtractor.package_config_files(pkg).items()
+        for config_name, config_file in config_files:
+            dest_rel_path = self._get_rel_dest_path(descriptor_id, config_name)
+            dest_path = os.path.join(self._install_dir, dest_rel_path)
+
+            self._log.debug("Extracting %s config to %s", config_name, dest_path)
+            try:
+                pkg.extract_file(config_file, dest_path)
+            except package.ExtractError as e:
+                raise ConfigExtractionError("Failed to extract config %s" % config_name) from e