nopaque/app/services/views.py
2019-08-05 15:35:18 +02:00

110 lines
3.7 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 NewOCRJobForm, NewNLPJobForm
from ..import swarm
from threading import Thread
import hashlib
import os
@services.route('/ocr', methods=['GET', 'POST'])
@login_required
def ocr():
new_ocr_job_form = NewOCRJobForm()
if new_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': new_ocr_job_form.language.data,
'version': new_ocr_job_form.version.data
},
'status': 'queued'
}
dir = os.path.join(app.config['OPAQUE_STORAGE'], 'jobs', id)
try:
os.makedirs(dir)
except OSError:
flash('OSError!')
else:
for file in new_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',
new_ocr_job_form=new_ocr_job_form
)
@services.route('/nlp', methods=['GET', 'POST'])
@login_required
def nlp():
new_nlp_job_form = NewNLPJobForm()
if new_nlp_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': 'nlp',
'service_args': {'lang': new_nlp_job_form.language.data,
'version': new_nlp_job_form.version.data
},
'status': 'queued'
}
dir = os.path.join(app.config['OPAQUE_STORAGE'], 'jobs', id)
try:
os.makedirs(dir)
except OSError:
flash('OSError!')
else:
for file in new_nlp_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.nlp'))
return render_template(
'services/nlp.html.j2',
title='Natrual Language Processing',
new_nlp_job_form=new_nlp_job_form
)