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import argparse
import json
import os
import re
import sys
from http.server import BaseHTTPRequestHandler, HTTPServer
from typing import Iterator, List, Optional, Tuple
from relik.inference.annotator import Relik
from relik.inference.data.objects import RelikOutput
# sys.path += ['../']
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../")))
import logging
logger = logging.getLogger(__name__)
class GerbilAlbyManager:
def __init__(
self,
annotator: Optional[Relik] = None,
response_logger_dir: Optional[str] = None,
) -> None:
self.annotator = annotator
self.response_logger_dir = response_logger_dir
self.predictions_counter = 0
self.labels_mapping = None
def annotate(self, document: str):
relik_output: RelikOutput = self.annotator(document)
annotations = [(ss, se, l) for ss, se, l, _ in relik_output.labels]
if self.labels_mapping is not None:
return [
(ss, se, self.labels_mapping.get(l, l)) for ss, se, l in annotations
]
return annotations
def set_mapping_file(self, mapping_file_path: str):
with open(mapping_file_path) as f:
labels_mapping = json.load(f)
self.labels_mapping = {v: k for k, v in labels_mapping.items()}
def write_response_bundle(
self,
document: str,
new_document: str,
annotations: list,
mapped_annotations: list,
) -> None:
if self.response_logger_dir is None:
return
if not os.path.isdir(self.response_logger_dir):
os.mkdir(self.response_logger_dir)
with open(
f"{self.response_logger_dir}/{self.predictions_counter}.json", "w"
) as f:
out_json_obj = dict(
document=document,
new_document=new_document,
annotations=annotations,
mapped_annotations=mapped_annotations,
)
out_json_obj["span_annotations"] = [
(ss, se, document[ss:se], label) for (ss, se, label) in annotations
]
out_json_obj["span_mapped_annotations"] = [
(ss, se, new_document[ss:se], label)
for (ss, se, label) in mapped_annotations
]
json.dump(out_json_obj, f, indent=2)
self.predictions_counter += 1
manager = GerbilAlbyManager()
def preprocess_document(document: str) -> Tuple[str, List[Tuple[int, int]]]:
pattern_subs = {
"-LPR- ": " (",
"-RPR-": ")",
"\n\n": "\n",
"-LRB-": "(",
"-RRB-": ")",
'","': ",",
}
document_acc = document
curr_offset = 0
char2offset = []
matchings = re.finditer("({})".format("|".join(pattern_subs)), document)
for span_matching in sorted(matchings, key=lambda x: x.span()[0]):
span_start, span_end = span_matching.span()
span_start -= curr_offset
span_end -= curr_offset
span_text = document_acc[span_start:span_end]
span_sub = pattern_subs[span_text]
document_acc = document_acc[:span_start] + span_sub + document_acc[span_end:]
offset = len(span_text) - len(span_sub)
curr_offset += offset
char2offset.append((span_start + len(span_sub), curr_offset))
return document_acc, char2offset
def map_back_annotations(
annotations: List[Tuple[int, int, str]], char_mapping: List[Tuple[int, int]]
) -> Iterator[Tuple[int, int, str]]:
def map_char(char_idx: int) -> int:
current_offset = 0
for offset_idx, offset_value in char_mapping:
if char_idx >= offset_idx:
current_offset = offset_value
else:
break
return char_idx + current_offset
for ss, se, label in annotations:
yield map_char(ss), map_char(se), label
def annotate(document: str) -> List[Tuple[int, int, str]]:
new_document, mapping = preprocess_document(document)
logger.info("Mapping: " + str(mapping))
logger.info("Document: " + str(document))
annotations = [
(cs, ce, label.replace(" ", "_"))
for cs, ce, label in manager.annotate(new_document)
]
logger.info("New document: " + str(new_document))
mapped_annotations = (
list(map_back_annotations(annotations, mapping))
if len(mapping) > 0
else annotations
)
logger.info(
"Annotations: "
+ str([(ss, se, document[ss:se], ann) for ss, se, ann in mapped_annotations])
)
manager.write_response_bundle(
document, new_document, mapped_annotations, annotations
)
if not all(
[
new_document[ss:se] == document[mss:mse]
for (mss, mse, _), (ss, se, _) in zip(mapped_annotations, annotations)
]
):
diff_mappings = [
(new_document[ss:se], document[mss:mse])
for (mss, mse, _), (ss, se, _) in zip(mapped_annotations, annotations)
]
return None
assert all(
[
document[mss:mse] == new_document[ss:se]
for (mss, mse, _), (ss, se, _) in zip(mapped_annotations, annotations)
]
), (mapped_annotations, annotations)
return [(cs, ce - cs, label) for cs, ce, label in mapped_annotations]
class GetHandler(BaseHTTPRequestHandler):
def do_POST(self):
content_length = int(self.headers["Content-Length"])
post_data = self.rfile.read(content_length)
self.send_response(200)
self.end_headers()
doc_text = read_json(post_data)
# try:
response = annotate(doc_text)
self.wfile.write(bytes(json.dumps(response), "utf-8"))
return
def read_json(post_data):
data = json.loads(post_data.decode("utf-8"))
# logger.info("received data:", data)
text = data["text"]
# spans = [(int(j["start"]), int(j["length"])) for j in data["spans"]]
return text
def parse_args() -> argparse.Namespace:
parser = argparse.ArgumentParser()
parser.add_argument("--relik-model-name", required=True)
parser.add_argument("--responses-log-dir")
parser.add_argument("--log-file", default="logs/logging.txt")
parser.add_argument("--mapping-file")
return parser.parse_args()
def main():
args = parse_args()
# init manager
manager.response_logger_dir = args.responses_log_dir
# manager.annotator = Relik.from_pretrained(args.relik_model_name)
print("Debugging, not using you relik model but an hardcoded one.")
manager.annotator = Relik(
question_encoder="riccorl/relik-retriever-aida-blink-pretrain-omniencoder",
document_index="riccorl/index-relik-retriever-aida-blink-pretrain-omniencoder",
reader="relik/reader/models/relik-reader-deberta-base-new-data",
window_size=32,
window_stride=16,
candidates_preprocessing_fn=(lambda x: x.split("<def>")[0].strip()),
)
if args.mapping_file is not None:
manager.set_mapping_file(args.mapping_file)
port = 6654
server = HTTPServer(("localhost", port), GetHandler)
logger.info(f"Starting server at http://localhost:{port}")
# Create a file handler and set its level
file_handler = logging.FileHandler(args.log_file)
file_handler.setLevel(logging.DEBUG)
# Create a log formatter and set it on the handler
formatter = logging.Formatter(
"%(asctime)s - %(name)s - %(levelname)s - %(message)s"
)
file_handler.setFormatter(formatter)
# Add the file handler to the logger
logger.addHandler(file_handler)
try:
server.serve_forever()
except KeyboardInterrupt:
exit(0)
if __name__ == "__main__":
main()