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from django.template import RequestContext, loader
from django.core.handlers.wsgi import STATUS_CODE_TEXT
import json
from utils import dict2xml
class BaseEmitter(object):
def __init__(self, resource):
self.resource = resource
def emit(self, output):
return output
class TemplatedEmitter(BaseEmitter):
template = None
def emit(self, output):
if output is None:
content = ''
else:
content = json.dumps(output, indent=4, sort_keys=True)
template = loader.get_template(self.template)
context = RequestContext(self.resource.request, {
'content': content,
'status': self.resource.resp_status,
'reason': STATUS_CODE_TEXT.get(self.resource.resp_status, ''),
'headers': self.resource.resp_headers,
'resource_name': self.resource.__class__.__name__,
'resource_doc': self.resource.__doc__,
'create_form': self.resource.form,
'update_form': self.resource.form,
'request': self.resource.request,
'resource': self.resource,
})
# Munge DELETE Response code to allow us to return content
if self.resource.resp_status == 204:
self.resource.resp_status = 200
return template.render(context)
class JSONEmitter(BaseEmitter):
def emit(self, output):
if output is None:
# Treat None as no message body, rather than serializing
return ''
return json.dumps(output)
class XMLEmitter(BaseEmitter):
def emit(self, output):
if output is None:
# Treat None as no message body, rather than serializing
return ''
return dict2xml(output)
class HTMLEmitter(TemplatedEmitter):
template = 'emitter.html'
class TextEmitter(TemplatedEmitter):
template = 'emitter.txt'
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