Merge pull request #16 from papayalove/master

更新了read_jsonl方法

magic_pdf/io/AbsReaderWriter.py

@@ -10,10 +10,10 @@ class AbsReaderWriter(ABC):
 
     def __init__(self, parent_path):
         # 初始化代码可以在这里添加，如果需要的话
-        self.parent_path = parent_path # 对于本地目录是父目录，对于s3是会写到这个apth下。
+        self.parent_path = parent_path # 对于本地目录是父目录，对于s3是会写到这个path下。
 
     @abstractmethod
-    def read(self, path: str, mode="text"):
+    def read(self, path: str, mode=MODE_TXT):
         """
         无论对于本地还是s3的路径，检查如果path是绝对路径，那么就不再 拼接parent_path, 如果是相对路径就拼接parent_path
         """

magic_pdf/io/DiskReaderWriter.py

 import os
 from magic_pdf.io.AbsReaderWriter import AbsReaderWriter
 from loguru import logger
+
+
+MODE_TXT = "text"
+MODE_BIN = "binary"
 class DiskReaderWriter(AbsReaderWriter):
+
     def __init__(self, parent_path, encoding='utf-8'):
         self.path = parent_path
         self.encoding = encoding
 
-    def read(self, mode="text"):
-        if not os.path.exists(self.path):
-            logger.error(f"文件 {self.path} 不存在")
-            raise Exception(f"文件 {self.path} 不存在")
-        if mode == "text":
-            with open(self.path, 'r', encoding = self.encoding) as f:
+    def read(self, path, mode=MODE_TXT):
+        if os.path.isabs(path):
+            abspath = path
+        else:
+            abspath = os.path.join(self.path, path)
+        if not os.path.exists(abspath):
+            logger.error(f"文件 {abspath} 不存在")
+            raise Exception(f"文件 {abspath} 不存在")
+        if mode == MODE_TXT:
+            with open(abspath, 'r', encoding = self.encoding) as f:
                 return f.read()
-        elif mode == "binary":
-            with open(self.path, 'rb') as f:
+        elif mode == MODE_BIN:
+            with open(abspath, 'rb') as f:
                 return f.read()
         else:
             raise ValueError("Invalid mode. Use 'text' or 'binary'.")
 
-    def write(self, data, mode="text"):
-        if mode == "text":
-            with open(self.path, 'w', encoding=self.encoding) as f:
-                f.write(data)
-                logger.info(f"内容已成功写入 {self.path}")
+    def write(self, content, path, mode=MODE_TXT):
+        if os.path.isabs(path):
+            abspath = path
+        else:
+            abspath = os.path.join(self.path, path)
+        if mode == MODE_TXT:
+            with open(abspath, 'w', encoding=self.encoding) as f:
+                f.write(content)
+                logger.info(f"内容已成功写入 {abspath}")
 
-        elif mode == "binary":
-            with open(self.path, 'wb') as f:
-                f.write(data)
-                logger.info(f"内容已成功写入 {self.path}")
+        elif mode == MODE_BIN:
+            with open(abspath, 'wb') as f:
+                f.write(content)
+                logger.info(f"内容已成功写入 {abspath}")
         else:
             raise ValueError("Invalid mode. Use 'text' or 'binary'.")
 
+    def read_jsonl(self, path: str, byte_start=0, byte_end=None, encoding='utf-8'):
+        return self.read(path)
 
 # 使用示例
 if __name__ == "__main__":
-    file_path = "example.txt"
-    drw = DiskReaderWriter(file_path)
+    file_path = "io/example.txt"
+    drw = DiskReaderWriter("D:\projects\papayfork\Magic-PDF\magic_pdf")
 
     # 写入内容到文件
-    drw.write(b"Hello, World!", mode="binary")
+    drw.write(b"Hello, World!", path="io/example.txt", mode="binary")
 
     # 从文件读取内容
-    content = drw.read()
+    content = drw.read(path=file_path)
     if content:
         logger.info(f"从 {file_path} 读取的内容: {content}")
 

magic_pdf/io/S3ReaderWriter.py

-
-
 from magic_pdf.io.AbsReaderWriter import AbsReaderWriter
 from magic_pdf.libs.commons import parse_aws_param, parse_bucket_key
 import boto3
 from loguru import logger
 from boto3.s3.transfer import TransferConfig
 from botocore.config import Config
+import os
+
+MODE_TXT = "text"
+MODE_BIN = "binary"
 
 
 class S3ReaderWriter(AbsReaderWriter):
-    def __init__(self, ak: str, sk: str, endpoint_url: str, addressing_style: str):
+    def __init__(self, ak: str, sk: str, endpoint_url: str, addressing_style: str, parent_path: str):
         self.client = self._get_client(ak, sk, endpoint_url, addressing_style)
+        self.path = parent_path
 
     def _get_client(self, ak: str, sk: str, endpoint_url: str, addressing_style: str):
         s3_client = boto3.client(
@@ -22,51 +25,83 @@ class S3ReaderWriter(AbsReaderWriter):
                           retries={'max_attempts': 5, 'mode': 'standard'}),
         )
         return s3_client
-    def read(self, s3_path, mode="text", encoding="utf-8"):
-        bucket_name, bucket_key = parse_bucket_key(s3_path)
-        res = self.client.get_object(Bucket=bucket_name, Key=bucket_key)
+
+    def read(self, s3_relative_path, mode=MODE_TXT, encoding="utf-8"):
+        if s3_relative_path.startswith("s3://"):
+            s3_path = s3_relative_path
+        else:
+            s3_path = os.path.join(self.path, s3_relative_path)
+        bucket_name, key = parse_bucket_key(s3_path)
+        res = self.client.get_object(Bucket=bucket_name, Key=key)
         body = res["Body"].read()
-        if mode == 'text':
+        if mode == MODE_TXT:
             data = body.decode(encoding)  # Decode bytes to text
-        elif mode == 'binary':
+        elif mode == MODE_BIN:
             data = body
         else:
             raise ValueError("Invalid mode. Use 'text' or 'binary'.")
         return data
 
-    def write(self, data, s3_path, mode="text", encoding="utf-8"):
-        if mode == 'text':
-            body = data.encode(encoding)  # Encode text data as bytes
-        elif mode == 'binary':
-            body = data
+    def write(self, content, s3_relative_path, mode=MODE_TXT, encoding="utf-8"):
+        if s3_relative_path.startswith("s3://"):
+            s3_path = s3_relative_path
+        else:
+            s3_path = os.path.join(self.path, s3_relative_path)
+        if mode == MODE_TXT:
+            body = content.encode(encoding)  # Encode text data as bytes
+        elif mode == MODE_BIN:
+            body = content
         else:
             raise ValueError("Invalid mode. Use 'text' or 'binary'.")
-        bucket_name, bucket_key = parse_bucket_key(s3_path)
-        self.client.put_object(Body=body, Bucket=bucket_name, Key=bucket_key)
+        bucket_name, key = parse_bucket_key(s3_path)
+        self.client.put_object(Body=body, Bucket=bucket_name, Key=key)
         logger.info(f"内容已写入 {s3_path} ")
 
+    def read_jsonl(self, path: str, byte_start=0, byte_end=None, mode=MODE_TXT, encoding='utf-8'):
+        if path.startswith("s3://"):
+            s3_path = path
+        else:
+            s3_path = os.path.join(self.path, path)
+        bucket_name, key = parse_bucket_key(s3_path)
+
+        range_header = f'bytes={byte_start}-{byte_end}' if byte_end else f'bytes={byte_start}-'
+        res = self.client.get_object(Bucket=bucket_name, Key=key, Range=range_header)
+        body = res["Body"].read()
+        if mode == MODE_TXT:
+            data = body.decode(encoding)  # Decode bytes to text
+        elif mode == MODE_BIN:
+            data = body
+        else:
+            raise ValueError("Invalid mode. Use 'text' or 'binary'.")
+        return data
+
 
 if __name__ == "__main__":
     # Config the connection info
     ak = ""
     sk = ""
     endpoint_url = ""
-    addressing_style = ""
-
+    addressing_style = "auto"
+    bucket_name = ""
     # Create an S3ReaderWriter object
-    s3_reader_writer = S3ReaderWriter(ak, sk, endpoint_url, addressing_style)
+    s3_reader_writer = S3ReaderWriter(ak, sk, endpoint_url, addressing_style, "s3://bucket_name/")
 
     # Write text data to S3
     text_data = "This is some text data"
-    s3_reader_writer.write(data=text_data, s3_path = "s3://bucket_name/ebook/test/test.json", mode='text')
+    s3_reader_writer.write(data=text_data, s3_relative_path=f"s3://{bucket_name}/ebook/test/test.json", mode=MODE_TXT)
 
     # Read text data from S3
-    text_data_read = s3_reader_writer.read(s3_path = "s3://bucket_name/ebook/test/test.json", mode='text')
+    text_data_read = s3_reader_writer.read(s3_relative_path=f"s3://{bucket_name}/ebook/test/test.json", mode=MODE_TXT)
     logger.info(f"Read text data from S3: {text_data_read}")
     # Write binary data to S3
     binary_data = b"This is some binary data"
-    s3_reader_writer.write(data=text_data, s3_path = "s3://bucket_name/ebook/test/test2.json", mode='binary')
+    s3_reader_writer.write(data=text_data, s3_relative_path=f"s3://{bucket_name}/ebook/test/test.json", mode=MODE_BIN)
 
     # Read binary data from S3
-    binary_data_read = s3_reader_writer.read(s3_path = "s3://bucket_name/ebook/test/test2.json", mode='binary')
-    logger.info(f"Read binary data from S3: {binary_data_read}")
+    binary_data_read = s3_reader_writer.read(s3_relative_path=f"s3://{bucket_name}/ebook/test/test.json", mode=MODE_BIN)
+    logger.info(f"Read binary data from S3: {binary_data_read}")
\ No newline at end of file
+
+    # Range Read text data from S3
+    binary_data_read = s3_reader_writer.read_jsonl(path=f"s3://{bucket_name}/ebook/test/test.json",
+                                                   byte_start=0, byte_end=10, mode=MODE_BIN)
+    logger.info(f"Read binary data from S3: {binary_data_read}")