1 files changed, 55 insertions, 0 deletions
diff --git a/azure/aria/aria-extension-cloudify/src/aria/aria/parser/reading/jinja.py b/azure/aria/aria-extension-cloudify/src/aria/aria/parser/reading/jinja.py
new file mode 100644
index 0000000..687317a
--- /dev/null
+++ b/azure/aria/aria-extension-cloudify/src/aria/aria/parser/reading/jinja.py
@@ -0,0 +1,55 @@
+# 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 os
+
+from jinja2 import Template
+
+from ... import __version__ as version
+from ..loading import LiteralLocation, LiteralLoader
+from .reader import Reader
+from .exceptions import ReaderSyntaxError
+
+
+# TODO: we could put a lot of other useful stuff here.
+CONTEXT = {
+    'ARIA_VERSION': version,
+    'ENV': os.environ}
+
+
+class JinjaReader(Reader):
+    """
+    ARIA Jinja reader.
+
+    Forwards the rendered result to a new reader in the reader source.
+    """
+
+    def read(self):
+        data = self.load()
+        try:
+            data = str(data)
+            template = Template(data)
+            literal = template.render(CONTEXT)
+            # TODO: might be useful to write the literal result to a file for debugging
+            location = self.location
+            if isinstance(location, basestring) and location.endswith('.jinja'):
+                # Use reader based on the location with the ".jinja" prefix stripped off
+                location = location[:-6]
+                next_reader = self.context.reading.reader_source.get_reader(
+                    self.context, LiteralLocation(literal, name=location), LiteralLoader(literal))
+            else:
+                # Use reader for literal loader
+                next_reader = self.context.reading.reader_source.get_reader(
+                    self.context, LiteralLocation(literal), LiteralLoader(literal))
+            return next_reader.read()
+        except Exception as e:
+            raise ReaderSyntaxError('Jinja: %s' % e, cause=e)