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start_doc_analysis_for_table_extraction.py
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import configparser
import logging
import os
import pathlib
import sys
import boto3
import time
class DocumentProcessor:
jobId = ''
region_name = ''
roleArn = ''
bucket = ''
document = ''
sqsQueueUrl = ''
snsTopicArn = ''
processType = ''
request_id = ''
textract_response = ''
def __init__(self, access_key, secret_key,role, bucket, document, region,pdf_key):
logging.basicConfig(filename=
str(pathlib.Path(__file__).parent.resolve()) + '/log/log.log',
format='%(asctime)s %(message)s',
filemode='w')
self.roleArn = role
self.bucket = bucket
self.document = document
self.region_name = region
self.access_key = access_key
self.secret_key = secret_key
self.pdf_key = pdf_key
self.s3_pdf_location = self.pdf_key + str(os.path.basename(self.document))
self.textract = boto3.client('textract',
aws_access_key_id=self.access_key,aws_secret_access_key=self.secret_key,region_name=self.region_name
)
self.s3 = boto3.client('s3',
aws_access_key_id=self.access_key,aws_secret_access_key=self.secret_key,region_name=self.region_name
)
self.sqs = boto3.client('sqs',aws_access_key_id=self.access_key,aws_secret_access_key=self.secret_key,region_name=self.region_name)
self.sns = boto3.client('sns',aws_access_key_id=self.access_key,aws_secret_access_key=self.secret_key,region_name=self.region_name)
def ProcessDocument(self):
jobFound = False
# print ( self.bucket, self.document)
self.textract_response = self.textract.start_document_analysis(DocumentLocation={'S3Object': {'Bucket': self.bucket, 'Name': self.s3_pdf_location}},
FeatureTypes=["TABLES"], NotificationChannel={'RoleArn': self.roleArn, 'SNSTopicArn': self.snsTopicArn})
with open(self.document, 'rb') as file:
img_test = file.read()
bytes_test = bytearray(img_test)
# print('PDF loaded', self.document)
# print('Processing type: Analysis')
# print('Start Job Id: ' + response['JobId'])
# print(self.textract_response['JobId'])
# print('Done!')
def CreateTopicandQueue(self):
millis = str(int(round(time.time() * 1000)))
# Create SNS topic
snsTopicName = "AmazonTextractTopic" + millis
topicResponse = self.sns.create_topic(Name=snsTopicName)
self.snsTopicArn = topicResponse['TopicArn']
# create SQS queue
sqsQueueName = "AmazonTextractQueue" + millis
self.sqs.create_queue(QueueName=sqsQueueName)
self.sqsQueueUrl = self.sqs.get_queue_url(QueueName=sqsQueueName)['QueueUrl']
attribs = self.sqs.get_queue_attributes(QueueUrl=self.sqsQueueUrl, AttributeNames=['QueueArn'])['Attributes']
sqsQueueArn = attribs['QueueArn']
# Subscribe SQS queue to SNS topic
self.sns.subscribe(TopicArn=self.snsTopicArn, Protocol='sqs', Endpoint=sqsQueueArn)
# Authorize SNS to write SQS queue
policy = """{{
"Version":"2012-10-17",
"Statement":[
{{
"Sid":"MyPolicy",
"Effect":"Allow",
"Principal" : {{"AWS" : "*"}},
"Action":"SQS:SendMessage",
"Resource": "{}",
"Condition":{{
"ArnEquals":{{
"aws:SourceArn": "{}"
}}
}}
}}
]
}}""".format(sqsQueueArn, self.snsTopicArn)
response = self.sqs.set_queue_attributes(
QueueUrl=self.sqsQueueUrl,
Attributes={
'Policy': policy
})
self.request_id = response["ResponseMetadata"]["RequestId"]
# print(self.request_id)
# print(response)
def uploadFile(self):
"""Upload a file to an S3 bucket
:param file_name: File to upload
:param bucket: Bucket to upload to
:param object_name: S3 object name. If not specified then file_name is used
:return: True if file was uploaded, else False
"""
# inside pdf folder
try:
# Upload the file
# s3_client.Object(self.bucket, s3_location).upload_file(self.document)
self.s3.upload_file(Filename=self.document,Bucket=self.bucket,Key=self.s3_pdf_location)
# with open(self.document, 'rb') as data:
# s3_client.upload_fileobj(data, self.bucket, s3_location)
except Exception as e:
logging.error(e.args)
return False
return True
def load_aws_config():
config = configparser.ConfigParser()
# print(str(pathlib.Path(__file__).parent.resolve()) + '/.aws/credentials')
config.read( str(pathlib.Path(__file__).parent.resolve()) + '/.aws/credentials')
aws_access_key_id = config.get("default","aws_access_key_id")
aws_secret_access_key = config.get("default","aws_secret_access_key")
region_name = config.get("default","region_name")
role_arn = config.get("default","role_arn")
bucket_name = config.get("s3","bucket")
pdf_key = config.get("s3","pdf_key")
return {"aws_access_key_id":aws_access_key_id, "aws_secret_access_key":aws_secret_access_key, "region_name":region_name, "role_arn":role_arn, "bucket_name":bucket_name, "pdf_key":pdf_key}
def main():
document = sys.argv[1] # document = 'pdf/AF_Dealer_Pricelist_072020_w.pdf'
config = load_aws_config() # access_key, secret_key, region_name, role_arn
roleArn = config["role_arn"]
bucket = config["bucket_name"]
region_name = config["region_name"]
access_key = config["aws_access_key_id"]
secret_key = config["aws_secret_access_key"]
pdf_key = config["pdf_key"]
# print(document)
# print(config)
analyzer = DocumentProcessor(access_key, secret_key,roleArn, bucket, document, region_name,pdf_key)
if(analyzer.uploadFile()):
analyzer.CreateTopicandQueue()
analyzer.ProcessDocument()
if __name__ == "__main__":
main()