def handle_array_query():
array_name, indexers = split_array_base(request.path)
arr = get_array(array_name, indexers)
base_url = request.url_root[:-1]
#no query params
if len(request.values) == 0:
return html_array(arr, base_url, array_name, indexers)
q_req = request.values['r']
if q_req == 'data.json':
return Response(nd.as_py(nd.format_json(arr).view_scalars(ndt.bytes)),
mimetype='application/json')
elif q_req == 'datashape':
content_type = 'text/plain; charset=utf-8'
return arr.dshape
elif q_req == 'dyndtype':
content_type = 'application/json; charset=utf-8'
body = str(arr.dtype)
return Response(body, mimetype='application/json')
elif q_req == 'dynddebug':
return arr.debug_repr()
elif q_req == 'create_session':
session = compute_session(app.array_provider, base_url,
add_indexers_to_url(array_name, indexers))
app.sessions[session.session_name] = session
content_type, body = session.creation_response()
return Response(body, mimetype='application/json')
else:
abort(400, "Unknown Blaze server request %s" % q_req)
def get_session_array(self, array_name = None):
if array_name is None:
array_name = self.array_name
array_root, indexers = split_array_base(array_name)
arr = self.array_provider(array_root)
if arr is None:
raise Exception('No Blaze Array named ' + array_root)
for i in indexers:
if type(i) in [slice, int, tuple]:
arr = arr[i]
else:
arr = getattr(arr, i)
return arr
def handle_array_query(self, environ, start_response):
print('Handling array query')
try:
array_name, indexers = split_array_base(environ['PATH_INFO'])
arr = self.get_array(array_name, indexers)
base_url = wsgi_reconstruct_base_url(environ)
request_method = environ['REQUEST_METHOD']
if request_method == 'GET' and environ['QUERY_STRING'] == '':
# This version of the array information is for human consumption
content_type = 'text/html; charset=utf-8'
body = self.html_array(arr, base_url, array_name, indexers)
else:
if request_method == 'GET':
q = parse_qs(environ['QUERY_STRING'])
elif request_method == 'POST':
# the environment variable CONTENT_LENGTH may be empty or missing
try:
request_body_size = int(environ.get('CONTENT_LENGTH', 0))
except (ValueError):
request_body_size = 0
request_body = environ['wsgi.input'].read(request_body_size)
q = parse_qs(request_body)
else:
status = '404 Not Found'
response_headers = [('content-type', 'text/plain')]
start_response(status, response_headers)
return ['Unsupported request method']
print q
if not q.has_key('r'):
status = '400 Bad Request'
response_headers = [('content-type', 'text/plain')]
start_response(status, response_headers, sys.exc_info())
return ['Blaze server request requires the ?r= query request type']
q_req = q['r'][0]
if q_req == 'data.json':
content_type = 'application/json; charset=utf-8'
body = nd.as_py(nd.format_json(arr).view_scalars(ndt.bytes))
elif q_req == 'datashape':
content_type = 'text/plain; charset=utf-8'
body = arr.dshape
elif q_req == 'dyndtype':
content_type = 'application/json; charset=utf-8'
body = str(arr.dtype)
elif q_req == 'dynddebug':
content_type = 'text/plain; charset=utf-8'
body = arr.debug_repr()
elif q_req == 'create_session':
session = compute_session(self.array_provider, base_url,
add_indexers_to_url(array_name, indexers))
self.sessions[session.session_name] = session
content_type, body = session.creation_response()
else:
status = '400 Bad Request'
response_headers = [('content-type', 'text/plain')]
start_response(status, response_headers, sys.exc_info())
return ['Unknown Blaze server request ?r=%s' % q['r'][0]]
except:
traceback.print_exc()
status = '404 Not Found'
response_headers = [('content-type', 'text/plain')]
start_response(status, response_headers, sys.exc_info())
return ['Error getting Blaze Array\n\n' + traceback.format_exc()]
status = '200 OK'
response_headers = [
('content-type', content_type),
('content-length', str(len(body)))
]
start_response(status, response_headers)
return [body]