mirror of
				https://gitlab.ub.uni-bielefeld.de/sfb1288inf/nopaque.git
				synced 2025-11-04 04:12:45 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			60 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			60 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from datetime import datetime
 | 
						|
from flask import current_app, flash, redirect, render_template, url_for
 | 
						|
from . import services
 | 
						|
from flask_login import current_user, login_required
 | 
						|
from .forms import CreateOCRJobForm
 | 
						|
from ..import swarm
 | 
						|
from threading import Thread
 | 
						|
import hashlib
 | 
						|
import os
 | 
						|
 | 
						|
 | 
						|
@services.route('/ocr', methods=['GET', 'POST'])
 | 
						|
@login_required
 | 
						|
def ocr():
 | 
						|
    create_ocr_job_form = CreateOCRJobForm()
 | 
						|
    if create_ocr_job_form.validate_on_submit():
 | 
						|
        app = current_app._get_current_object()
 | 
						|
        id = hashlib.md5(
 | 
						|
            (current_user.username + '_' + datetime.now().isoformat()).encode()
 | 
						|
        ).hexdigest()
 | 
						|
        '''
 | 
						|
        ' TODO: Implement a Job class. For now a dictionary representation
 | 
						|
        '       is enough.
 | 
						|
        '''
 | 
						|
        job = {'creator': current_user.id,
 | 
						|
               'id': id,
 | 
						|
               'requested_cpus': 2,
 | 
						|
               'requested_memory': 2048,
 | 
						|
               'service': 'ocr',
 | 
						|
               'service_args': {'lang': create_ocr_job_form.language.data,
 | 
						|
                                'version': 'latest'
 | 
						|
                                },
 | 
						|
               'status': 'queued'
 | 
						|
               }
 | 
						|
        dir = os.path.join(app.config['OPAQUE_FILES'], 'jobs', id)
 | 
						|
 | 
						|
        try:
 | 
						|
            os.makedirs(dir)
 | 
						|
        except OSError:
 | 
						|
            flash('OSError!')
 | 
						|
        else:
 | 
						|
            for file in create_ocr_job_form.files.data:
 | 
						|
                file.save(os.path.join(dir, file.filename))
 | 
						|
            '''
 | 
						|
            ' TODO: Let the scheduler run this job in the background.
 | 
						|
            '
 | 
						|
            ' NOTE: Using self created threads is just for testing purpose as
 | 
						|
            '       there is no scheduler available.
 | 
						|
            '''
 | 
						|
            thread = Thread(target=swarm.run, args=(job,))
 | 
						|
            thread.start()
 | 
						|
            flash('Job created!')
 | 
						|
        return redirect(url_for('services.ocr'))
 | 
						|
 | 
						|
    return render_template(
 | 
						|
        'services/ocr.html.j2',
 | 
						|
        title='Optical Character Recognition',
 | 
						|
        create_ocr_job_form=create_ocr_job_form
 | 
						|
    )
 |