-
Notifications
You must be signed in to change notification settings - Fork 304
/
SourceDocument.py
145 lines (130 loc) · 4.61 KB
/
SourceDocument.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
from typing import Optional, Type
import hashlib
import json
from urllib.parse import urlparse, quote
from ..helpers.AzureBlobStorageHelper import AzureBlobStorageClient
class SourceDocument:
def __init__(
self,
content: str,
source: str,
id: Optional[str] = None,
title: Optional[str] = None,
chunk: Optional[int] = None,
offset: Optional[int] = None,
page_number: Optional[int] = None,
chunk_id: Optional[str] = None,
):
self.id = id
self.content = content
self.source = source
self.title = title
self.chunk = chunk
self.offset = offset
self.page_number = page_number
self.chunk_id = chunk_id
def __str__(self):
return f"SourceDocument(id={self.id}, title={self.title}, source={self.source}, chunk={self.chunk}, offset={self.offset}, page_number={self.page_number}, chunk_id={self.chunk_id})"
def to_json(self):
return json.dumps(self, cls=SourceDocumentEncoder)
@classmethod
def from_json(cls, json_string):
return json.loads(json_string, cls=SourceDocumentDecoder)
@classmethod
def from_dict(cls, dict_obj):
return cls(
dict_obj["id"],
dict_obj["content"],
dict_obj["source"],
dict_obj["title"],
dict_obj["chunk"],
dict_obj["offset"],
dict_obj["page_number"],
dict_obj["chunk_id"],
)
@classmethod
def from_metadata(
cls: Type["SourceDocument"],
content: str,
metadata: dict,
document_url: Optional[str],
idx: Optional[int],
) -> "SourceDocument":
parsed_url = urlparse(document_url)
file_url = parsed_url.scheme + "://" + parsed_url.netloc + parsed_url.path
filename = parsed_url.path
hash_key = hashlib.sha1(f"{file_url}_{idx}".encode("utf-8")).hexdigest()
hash_key = f"doc_{hash_key}"
sas_placeholder = (
"_SAS_TOKEN_PLACEHOLDER_"
if parsed_url.netloc
and parsed_url.netloc.endswith(".blob.core.windows.net")
else ""
)
return cls(
id=metadata.get("id", hash_key),
content=content,
source=metadata.get("source", f"{file_url}{sas_placeholder}"),
title=metadata.get("title", filename),
chunk=metadata.get("chunk", idx),
offset=metadata.get("offset"),
page_number=metadata.get("page_number"),
chunk_id=metadata.get("chunk_id"),
)
def convert_to_langchain_document(self):
from langchain.docstore.document import Document
return Document(
page_content=self.content,
metadata={
"id": self.id,
"source": self.source,
"title": self.title,
"chunk": self.chunk,
"offset": self.offset,
"page_number": self.page_number,
"chunk_id": self.chunk_id,
},
)
def get_filename(self, include_path=False):
filename = self.source.replace("_SAS_TOKEN_PLACEHOLDER_", "").replace(
"http://", ""
)
if include_path:
filename = filename.split("/")[-1]
else:
filename = filename.split("/")[-1].split(".")[0]
return filename
def get_markdown_url(self):
url = quote(self.source, safe=":/")
if "_SAS_TOKEN_PLACEHOLDER_" in url:
blob_client = AzureBlobStorageClient()
container_sas = blob_client.get_container_sas()
url = url.replace("_SAS_TOKEN_PLACEHOLDER_", container_sas)
return f"[{self.title}]({url})"
class SourceDocumentEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, SourceDocument):
return {
"id": obj.id,
"content": obj.content,
"source": obj.source,
"title": obj.title,
"chunk": obj.chunk,
"offset": obj.offset,
"page_number": obj.page_number,
"chunk_id": obj.chunk_id,
}
return super().default(obj)
class SourceDocumentDecoder(json.JSONDecoder):
def decode(self, s, **kwargs):
obj = super().decode(s, **kwargs)
return SourceDocument(
id=obj["id"],
content=obj["content"],
source=obj["source"],
title=obj["title"],
chunk=obj["chunk"],
offset=obj["offset"],
page_number=obj["page_number"],
chunk_id=obj["chunk_id"],
)