def _examples_from_path_handler(self, request):
"""Returns JSON of the specified examples.
Args:
request: A request that should contain 'examples_path' and 'max_examples'.
Returns:
JSON of up to max_examples of the examples in the path.
"""
start_example = (int(request.args.get('start_example'))
if request.args.get('start_example') else 0)
if not start_example:
examples_count = int(request.args.get('max_examples'))
examples_path = request.args.get('examples_path')
sampling_odds = float(request.args.get('sampling_odds'))
self.example_class = (tf.train.SequenceExample
if request.args.get('sequence_examples')
== 'true' else tf.train.Example)
try:
platform_utils.throw_if_file_access_not_allowed(
examples_path, self._logdir, self._wit_data_dir)
example_strings = platform_utils.example_protos_from_path(
examples_path,
examples_count,
parse_examples=False,
sampling_odds=sampling_odds,
example_class=self.example_class)
self.examples = [
self.example_class.FromString(ex) for ex in example_strings
]
self.generate_sprite(example_strings)
self.updated_example_indices = set(range(len(self.examples)))
except common_utils.InvalidUserInputError as e:
logger.error('Data loading error: %s', e.message)
return http_util.Respond(request,
e.message,
'application/json',
code=400)
except Exception as e:
return http_util.Respond(request,
str(e),
'application/json',
code=400)
# Split examples from start_example to + max_examples
# Send next start_example if necessary
end_example = start_example + MAX_EXAMPLES_TO_SEND
json_examples = [
json_format.MessageToJson(example)
for example in self.examples[start_example:end_example]
]
if end_example >= len(self.examples):
end_example = -1
return http_util.Respond(
request, {
'examples': json_examples,
'sprite': True if
(self.sprite and not start_example) else False,
'next': end_example
}, 'application/json')
def test_example_protos_from_path_get_all_in_file(self):
cns_path = os.path.join(tf.compat.v1.test.get_temp_dir(),
'dummy_example')
example = test_utils.make_fake_example()
test_utils.write_out_examples([example], cns_path)
dummy_examples = platform_utils.example_protos_from_path(cns_path)
self.assertEqual(1, len(dummy_examples))
self.assertEqual(example, dummy_examples[0])
def test_example_protos_from_path_get_two(self):
cns_path = os.path.join(tf.compat.v1.test.get_temp_dir(),
'dummy_example')
example_one = test_utils.make_fake_example(1)
example_two = test_utils.make_fake_example(2)
example_three = test_utils.make_fake_example(3)
test_utils.write_out_examples(
[example_one, example_two, example_three], cns_path)
dummy_examples = platform_utils.example_protos_from_path(cns_path, 2)
self.assertEqual(2, len(dummy_examples))
self.assertEqual(example_one, dummy_examples[0])
self.assertEqual(example_two, dummy_examples[1])
def test_example_protos_from_path_use_wildcard(self):
cns_path = os.path.join(tf.compat.v1.test.get_temp_dir(),
'wildcard_example1')
example1 = test_utils.make_fake_example(1)
test_utils.write_out_examples([example1], cns_path)
cns_path = os.path.join(tf.compat.v1.test.get_temp_dir(),
'wildcard_example2')
example2 = test_utils.make_fake_example(2)
test_utils.write_out_examples([example2], cns_path)
wildcard_path = os.path.join(tf.compat.v1.test.get_temp_dir(),
'wildcard_example*')
dummy_examples = platform_utils.example_protos_from_path(wildcard_path)
self.assertEqual(2, len(dummy_examples))
def _examples_from_path_handler(self, request):
"""Returns JSON of the specified examples.
Args:
request: A request that should contain 'examples_path' and 'max_examples'.
Returns:
JSON of up to max_examlpes of the examples in the path.
"""
examples_count = int(request.args.get('max_examples'))
examples_path = request.args.get('examples_path')
sampling_odds = float(request.args.get('sampling_odds'))
self.example_class = (tf.train.SequenceExample
if request.args.get('sequence_examples')
== 'true' else tf.train.Example)
try:
platform_utils.throw_if_file_access_not_allowed(
examples_path, self._logdir, self._wit_data_dir)
example_strings = platform_utils.example_protos_from_path(
examples_path,
examples_count,
parse_examples=False,
sampling_odds=sampling_odds,
example_class=self.example_class)
self.examples = [
self.example_class.FromString(ex) for ex in example_strings
]
self.generate_sprite(example_strings)
json_examples = [
json_format.MessageToJson(example) for example in self.examples
]
self.updated_example_indices = set(range(len(json_examples)))
return http_util.Respond(
request, {
'examples': json_examples,
'sprite': True if self.sprite else False
}, 'application/json')
except common_utils.InvalidUserInputError as e:
logger.error('Data loading error: %s', e.message)
return http_util.Respond(request, {'error': e.message},
'application/json',
code=400)
def test_example_proto_from_path_if_does_not_exist(self):
cns_path = os.path.join(tf.compat.v1.test.get_temp_dir(),
'does_not_exist')
with self.assertRaises(common_utils.InvalidUserInputError):
platform_utils.example_protos_from_path(cns_path)
