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Update PDF text parser classes. Remove SlateParser and substitute with a PDFMiner based parser.

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This commit is contained in:
Roberto Rosario
2015-07-31 02:09:48 -04:00
parent 1361ea9b42
commit 8382df91a6
7 changed files with 254 additions and 36 deletions
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32
mayan/apps/ocr/classes.py
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@@ -5,8 +5,6 @@ import logging
from converter import converter_class
from .models import DocumentPageContent
from .parsers import parse_document_page
from .parsers.exceptions import ParserError, ParserUnknownFile
logger = logging.getLogger(__name__)
@@ -18,21 +16,31 @@ class OCRBackendBase(object):
language = document_version.document.language
for page in document_version.pages.all():
image = page.get_image()
for document_page in document_version.pages.all():
self.process_document_page(document_page=document_page, language=language)
def process_document_page(self, document_page, language=None):
logger.info(
'Processing page: %d of document version: %s',
page.page_number, document_version
document_page.page_number, document_page.document_version
)
document_page_content, created = DocumentPageContent.objects.get_or_create(document_page=page)
document_page_content.content = self.execute(
file_object=image, language=language
)
document_page_content.save()
image.close()
image = document_page.get_image()
try:
document_page_content, created = DocumentPageContent.objects.get_or_create(
document_page=document_page
)
document_page_content.content = self.execute(
file_object=image, language=language
)
document_page_content.save()
finally:
image.close()
logger.info(
'Finished processing page: %d of document version: %s',
page.page_number, document_version
document_page.page_number, document_page.document_version
)
def execute(self, file_object, language=None, transformations=None):