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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, request, status, headers):
self.request = request
self.resource = resource
self.status = status
self.headers = headers
def emit(self, output):
return output
class TemplatedEmitter(BaseEmitter):
template = None
def emit(self, output):
content = json.dumps(output, indent=4)
template = loader.get_template(self.template)
context = RequestContext(self.request, {
'content': content,
'status': self.status,
'reason': STATUS_CODE_TEXT.get(self.status, ''),
'headers': self.headers,
'resource_name': self.resource.__class__.__name__,
'resource_doc': self.resource.__doc__,
'create_form': self.resource.create_form and self.resource.create_form() or None,
'update_form': self.resource.update_form and self.resource.update_form() or None,
'allowed_methods': self.resource.allowed_methods,
'request': self.request,
'resource': self.resource,
})
return template.render(context)
class JSONEmitter(BaseEmitter):
def emit(self, output):
return json.dumps(output)
class XMLEmitter(BaseEmitter):
def emit(self, output):
return dict2xml(output)
class HTMLEmitter(TemplatedEmitter):
template = 'emitter.html'
class TextEmitter(TemplatedEmitter):
template = 'emitter.txt'
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