pgadmin4/web/pgadmin/misc/bgprocess/__init__.py
2016-06-17 14:21:14 +01:00

123 lines
3.3 KiB
Python

##########################################################################
#
# pgAdmin 4 - PostgreSQL Tools
#
# Copyright (C) 2013 - 2016, The pgAdmin Development Team
# This software is released under the PostgreSQL Licence
#
##########################################################################
"""
A blueprint module providing utility functions for the notify the user about
the long running background-processes.
"""
from flask import url_for
from flask.ext.babel import gettext as _
from flask.ext.security import login_required
from pgadmin.utils.ajax import make_response, gone, bad_request, success_return
from pgadmin.utils import PgAdminModule
from .processes import BatchProcess
MODULE_NAME = 'bgprocess'
class BGProcessModule(PgAdminModule):
def get_own_javascripts(self):
return [{
'name': 'pgadmin.browser.bgprocess',
'path': url_for('bgprocess.static', filename='js/bgprocess'),
'when': None
}]
def get_own_stylesheets(self):
"""
Returns:
list: the stylesheets used by this module.
"""
stylesheets = [
url_for('bgprocess.static', filename='css/bgprocess.css')
]
return stylesheets
def get_own_messages(self):
"""
Returns:
dict: the i18n messages used by this module
"""
return {
'bgprocess.index': url_for("bgprocess.index"),
'bgprocess.list': url_for("bgprocess.list"),
'seconds': _('seconds'),
'started': _('Started'),
'START_TIME': _('Start time'),
'STATUS': _('Status'),
'EXECUTION_TIME': _('Execution time'),
'running': _('Running...'),
'successfully_finished': _("Successfully completed."),
'failed_with_exit_code': _("Failed (exit code: %%s).")
}
# Initialise the module
blueprint = BGProcessModule(
MODULE_NAME, __name__, url_prefix='/misc/bgprocess'
)
@blueprint.route('/')
@login_required
def index():
return bad_request(errormsg=_('This URL can not be called directly.'))
@blueprint.route('/status/<pid>/', methods=['GET'])
@blueprint.route('/status/<pid>/<int:out>/<int:err>/', methods=['GET'])
@login_required
def status(pid, out=-1, err=-1):
"""
Check the status of the process running in background.
Sends back the output of stdout/stderr
Fetches & sends STDOUT/STDERR logs for the process requested by client
Args:
pid: Process ID
out: position of the last stdout fetched
err: position of the last stderr fetched
Returns:
Status of the process and logs (if out, and err not equal to -1)
"""
try:
process = BatchProcess(id=pid)
return make_response(response=process.status(out, err))
except LookupError as lerr:
return gone(errormsg=str(lerr))
@blueprint.route('/list/', methods=['GET'])
def list():
return make_response(response=BatchProcess.list())
@blueprint.route('/acknowledge/<pid>/', methods=['PUT'])
@login_required
def acknowledge(pid):
"""
User has acknowledge the process
Args:
pid: Process ID
Returns:
Positive status
"""
try:
BatchProcess.acknowledge(pid, True)
return success_return()
except LookupError as lerr:
return gone(errormsg=str(lerr))