Hi Raymond,
I'm not sure where /tmp is actually, but is likely to be on a different physical drive to the location that I specify to save the data. I'll paste all my code below. n.b. this code works, but contains the workaround to avoid the above error.
import logging
import os.path
from pathlib import Path
import shutil
from adobe.pdfservices.operation.auth.credentials import Credentials
from adobe.pdfservices.operation.exception.exceptions import ServiceApiException, ServiceUsageException, SdkException
from adobe.pdfservices.operation.pdfops.options.extractpdf.extract_pdf_options import ExtractPDFOptions
from adobe.pdfservices.operation.pdfops.options.extractpdf.extract_renditions_element_type import \
ExtractRenditionsElementType
from adobe.pdfservices.operation.pdfops.options.extractpdf.extract_element_type import ExtractElementType
from adobe.pdfservices.operation.execution_context import ExecutionContext
from adobe.pdfservices.operation.io.file_ref import FileRef
from adobe.pdfservices.operation.pdfops.extract_pdf_operation import ExtractPDFOperation
logging.basicConfig(level=os.environ.get("LOGLEVEL", "INFO"))
try:
# get base path.
#base_path = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) #example base_path changed to root_path
root_path = os.getcwd() #to edit based on location
input_path = root_path + '/still_missing' #to edit based on location
output_path = root_path + '/still_missing/output/' #to edit based on location
credentials = Credentials.service_account_credentials_builder() \
.from_file(root_path + "/pdfservices-api-credentials-jt.json") \
.build()
# Create an ExecutionContext using credentials and create a new operation instance.
execution_context = ExecutionContext.create(credentials)
filenames = os.listdir(input_path)
for name in filenames:
if not name.endswith('.pdf'):
continue
print(name)
# Initial setup, create credentials instance.
extract_pdf_operation = ExtractPDFOperation.create_new()
# Set operation input from a source file.
# source = FileRef.create_from_local_file(input_path + "/Abroms_2014.pdf")
# extract_pdf_operation.set_input(source)
source = FileRef.create_from_local_file(input_path + "/" + name)
extract_pdf_operation.set_input(source)
# Build ExtractPDF options and set them into the operation
extract_pdf_options: ExtractPDFOptions = ExtractPDFOptions.builder() \
.with_elements_to_extract([ExtractElementType.TEXT, ExtractElementType.TABLES]) \
.with_elements_to_extract_renditions([ExtractRenditionsElementType.TABLES,
ExtractRenditionsElementType.FIGURES]) \
.build()
extract_pdf_operation.set_options(extract_pdf_options)
# Execute the operation.
result: FileRef = extract_pdf_operation.execute(execution_context)
# Save the result to the specified location.
#giving same name as input but saving as zip files
output_file_name = name[:-3] + "zip"
# getting around a bug in the adobe library. (The /tmp/ folder is on a different mount, and throws an error, as the library tries to rename, rather than move the file)
output_file_path = '/tmp/sdk_result/' + output_file_name #output_path + output_file_name
result.save_as(output_file_path)
shutil.copyfile(output_file_path, output_path + output_file_name)
except (ServiceApiException, ServiceUsageException, SdkException):
logging.exception("Exception encountered while executing operation")
You can see that I'm specifying where to save the file in this line: source = FileRef.create_from_local_file(input_path + "/" + name)
Further down, you can see that I'm specifying the output_file_path so that it's in the same physical location as the temporary file. The code commented out is what I'd like to use - i.e. to save the result where I want it saved, but the result.save_as would fail if I used the same location as os.getcwd()
This may be a lengthy way of answering your question to say that if I try to save the result to a different physical drive to the one that /tmp is on, then it will fail. If you google the 'OSError: [Errno 18] Invalid cross-device link' you'll see that this is a known issue when using os.rename - which is what it seems is being used to move the temporary file to the specified location. (line 48 of adobe/pdfservices/operation/internal/io/file_ref_impl.py).
Hope this helps, but happy to have another go at describing what I'm seeing if not.
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