def OCRPDF(task): task_tag = "PDF OCR-TO-TEXT" print "\n\n************** %s [START] ******************\n" % task_tag print "OCRing text from pdf at %s" % task.doc_id task.setStatus(412) from lib.Worker.Models.cp_pdf import CompassPDF from conf import DEBUG from vars import ASSET_TAGS pdf = CompassPDF(_id=task.doc_id) if pdf is None: print "PDF IS NONE" print "\n\n************** %s [ERROR] ******************\n" % task_tag return """ In this task, we might be asked to extract from a broken-up sub-group of documents. if so, that should be set in the task's properties. """ pdf_reader = pdf.loadFile(pdf.file_name) total_pages = pdf_reader.getNumPages() if hasattr(task, "split_file"): pdf_reader = pdf.loadAsset(task.split_file) if pdf_reader is None: print "PDF READER IS NONE" print "\n\n************** %s [ERROR] ******************\n" % task_tag return lower_bound = 0 upper_bound = lower_bound + pdf_reader.getNumPages() texts = [None] * total_pages for x in xrange(lower_bound, upper_bound): # TODO: OCR the doc texts[x] = "TBD" asset_path = pdf.addAsset(texts, "doc_ocr.json", as_literal=False, description="jsonified texts in document; page-by-page. From OCR", tags=[ASSET_TAGS['TXT_OCR']]) if asset_path is not None: pdf.addFile(asset_path, None, sync=True) pdf.addCompletedTask(task.task_path) task.finish() print "\n\n************** %s [END] ******************\n" % task_tag
def extractPDFText(task):
task_tag = "PDF TEXT EXTRACTION"
print "\n\n************** %s [START] ******************\n" % task_tag
print "extracting text from pdf at %s" % task.doc_id
task.setStatus(412)
from lib.Worker.Models.cp_pdf import CompassPDF
from conf import DEBUG
from vars import ASSET_TAGS
pdf = CompassPDF(_id=task.doc_id)
if pdf is None:
print "PDF IS NONE"
print "\n\n************** PDF TEXT EXTRACTION [ERROR] ******************\n"
return
"""
In this task, we might be asked to extract from a broken-up sub-group of documents.
if so, that should be set in the task's properties.
"""
pdf_reader = pdf.loadFile(pdf.file_name)
total_pages = pdf_reader.getNumPages()
if hasattr(task, "split_file"):
pdf_reader = pdf.loadAsset(task.split_file)
if pdf_reader is None:
print "PDF READER IS NONE"
print "\n\n************** PDF TEXT EXTRACTION [ERROR] ******************\n"
return
from json import loads
lower_bound = 0
t = pdf.getAsset("doc_texts.json")
if t is None:
texts = [None] * total_pages
else:
try:
texts = loads(t[0])
except TypeError as e:
texts = [None] * total_pages
if hasattr(task, "split_index") : lower_bound = task.split_index
upper_bound = lower_bound + pdf_reader.getNumPages()
for x in xrange(lower_bound, upper_bound):
texts[x] = pdf_reader.getPage(x).extractText()
if DEBUG: print "EXTRACTED TEXT from page %d of %d:\n%s" % (x, upper_bound, texts[x])
asset_path = pdf.addAsset(texts, "doc_texts.json", as_literal=False,
description="jsonified texts in document; page-by-page, segment-by-segment. uncleaned. (Not OCR)", tags=[ASSET_TAGS['TXT_JSON']])
if asset_path is not None:
pdf.addFile(asset_path, None, sync=True)
from lib.Worker.Models.uv_text import UnveillanceText
uv_text = UnveillanceText(inflate={
'media_id' : pdf._id,
'searchable_text' : texts,
'file_name' : asset_path
})
pdf.text_id = uv_text._id
pdf.save()
pdf.addCompletedTask(task.task_path)
if not hasattr(task, "no_continue"):
from lib.Worker.Models.uv_task import UnveillanceTask
next_task = UnveillanceTask(inflate={
'task_path' : 'Text.preprocess_nlp.preprocessNLP',
'doc_id' : task.doc_id,
'queue' : task.queue,
'text_file' : asset_path
})
next_task.run()
if DEBUG: print "WHERE ARE THE F*****G S TEXTS? %d" % len(pdf.searchable_texts)
task.finish()
print "\n\n************** PDF TEXT EXTRACTION [END] ******************\n"
def extractPDFText(uv_task):
task_tag = "PDF TEXT EXTRACTION"
print "\n\n************** %s [START] ******************\n" % task_tag
print "extracting text from pdf at %s" % uv_task.doc_id
uv_task.setStatus(302)
from lib.Worker.Models.cp_pdf import CompassPDF
pdf = CompassPDF(_id=uv_task.doc_id)
if pdf is None:
print "PDF IS NONE"
print "\n\n************** %s [ERROR] ******************\n" % task_tag
uv_task.fail()
return
"""
In this task, we might be asked to extract from a broken-up sub-group of documents.
if so, that should be set in the task's properties.
"""
import os
from fabric.api import settings, local
from wand.image import Image
from time import sleep
from lib.Core.Utils.funcs import cleanLine, generateMD5Hash
from Models.uv_els_stub import UnveillanceELSStub
from conf import ANNEX_DIR, DEBUG
from vars import ASSET_TAGS
texts = [None] * pdf.total_pages
if pdf.hasParts():
extractors = pdf.getParts()
else:
extractors = [pdf.file_name]
count = 0
for e in extractors:
if e == pdf.file_name:
pdf_reader = pdf.loadFile(e)
else:
pdf_reader = pdf.loadAsset(e)
try:
num_pages = pdf_reader.getNumPages()
except AttributeError as e:
print e
continue
for x in xrange(0, num_pages):
text = cleanLine(pdf_reader.getPage(x).extractText())
texts[count] = text
els_stub = UnveillanceELSStub('cp_page_text', inflate={
'media_id' : pdf._id,
'searchable_text' : text,
'index_in_parent' : count,
'_id' : generateMD5Hash(content=pdf._id, salt=str(count))
})
count += 1
asset_path = pdf.addAsset(texts, "doc_texts.json", as_literal=False,
description="jsonified texts in document; page-by-page, segment-by-segment. unclean.", tags=[ASSET_TAGS['TXT_JSON']])
if asset_path is not None:
pdf.addFile(asset_path, None, sync=True)
pdf.save()
del texts
pdf.addCompletedTask(uv_task.task_path)
uv_task.routeNext(inflate={ 'text_file' : asset_path })
print "\n\n************** %s [END] ******************\n" % task_tag
uv_task.finish()