diff options
author | David M. Lee <dlee@digium.com> | 2013-04-22 14:58:53 +0000 |
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committer | David M. Lee <dlee@digium.com> | 2013-04-22 14:58:53 +0000 |
commit | 1c21b8575bfd70b98b1102fd3dd09fc0bc335e14 (patch) | |
tree | 9a6ef6074e545ad2768bc1994e1a233fc1443729 /rest-api-templates/transform.py | |
parent | 1871017cc6bd2e2ce7c638eeb6813e982377a521 (diff) |
This patch adds a RESTful HTTP interface to Asterisk.
The API itself is documented using Swagger, a lightweight mechanism for
documenting RESTful API's using JSON. This allows us to use swagger-ui
to provide executable documentation for the API, generate client
bindings in different languages, and generate a lot of the boilerplate
code for implementing the RESTful bindings. The API docs live in the
rest-api/ directory.
The RESTful bindings are generated from the Swagger API docs using a set
of Mustache templates. The code generator is written in Python, and
uses Pystache. Pystache has no dependencies, and be installed easily
using pip. Code generation code lives in rest-api-templates/.
The generated code reduces a lot of boilerplate when it comes to
handling HTTP requests. It also helps us have greater consistency in the
REST API.
(closes issue ASTERISK-20891)
Review: https://reviewboard.asterisk.org/r/2376/
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@386232 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'rest-api-templates/transform.py')
-rw-r--r-- | rest-api-templates/transform.py | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/rest-api-templates/transform.py b/rest-api-templates/transform.py new file mode 100644 index 000000000..d0ef3c4a1 --- /dev/null +++ b/rest-api-templates/transform.py @@ -0,0 +1,53 @@ +# +# Asterisk -- An open source telephony toolkit. +# +# Copyright (C) 2013, Digium, Inc. +# +# David M. Lee, II <dlee@digium.com> +# +# See http://www.asterisk.org for more information about +# the Asterisk project. Please do not directly contact +# any of the maintainers of this project for assistance; +# the project provides a web site, mailing lists and IRC +# channels for your use. +# +# This program is free software, distributed under the terms of +# the GNU General Public License Version 2. See the LICENSE file +# at the top of the source tree. +# + +import os.path +import pystache + + +class Transform(object): + """Transformation for template to code. + """ + def __init__(self, template_file, dest_file_template_str, overwrite=True): + """Ctor. + + @param template_file: Filename of the mustache template. + @param dest_file_template_str: Destination file name. This is a + mustache template, so each resource can write to a unique file. + @param overwrite: If True, destination file is ovewritten if it exists. + """ + template_str = unicode(open(template_file, "r").read()) + self.template = pystache.parse(template_str) + dest_file_template_str = unicode(dest_file_template_str) + self.dest_file_template = pystache.parse(dest_file_template_str) + self.overwrite = overwrite + + def render(self, renderer, model, dest_dir): + """Render a model according to this transformation. + + @param render: Pystache renderer. + @param model: Model object to render. + @param dest_dir: Destination directory to write generated code. + """ + dest_file = pystache.render(self.dest_file_template, model) + dest_file = os.path.join(dest_dir, dest_file) + if os.path.exists(dest_file) and not self.overwrite: + return + print "Rendering %s" % dest_file + with open(dest_file, "w") as out: + out.write(renderer.render(self.template, model)) |