Mercurial > hg > orthanc
view Resources/Samples/Python/ChangesLoop.py @ 1045:0bfeeb6d340f
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 18 Jul 2014 16:41:10 +0200 |
parents | 44382c8bcd15 |
children | 4e9d517503ae |
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#!/usr/bin/python # Orthanc - A Lightweight, RESTful DICOM Store # Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, # Belgium # # This program is free software: you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation, either version 3 of the # License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import time import sys import RestToolbox ## ## Print help message ## if len(sys.argv) != 3: print(""" Sample script that continuously monitors the arrival of new DICOM images into Orthanc (through the Changes API). Usage: %s [hostname] [HTTP port] For instance: %s localhost 8042 """ % (sys.argv[0], sys.argv[0])) exit(-1) URL = 'http://%s:%d' % (sys.argv[1], int(sys.argv[2])) ## ## The following function is called each time a new instance is ## received. ## def NewInstanceReceived(path): global URL patientName = RestToolbox.DoGet(URL + path + '/content/PatientName') # Remove the possible trailing characters due to DICOM padding patientName = patientName.strip() print 'New instance received for patient "%s": "%s"' % (patientName, path) ## ## Main loop that listens to the changes API. ## current = 0 while True: r = RestToolbox.DoGet(URL + '/changes', { 'since' : current, 'limit' : 4 # Retrieve at most 4 changes at once }) for change in r['Changes']: # We are only interested interested in the arrival of new instances if change['ChangeType'] == 'NewInstance': # Call the callback function path = change['Path'] NewInstanceReceived(path) # Delete the instance once it has been discovered RestToolbox.DoDelete(URL + path) current = r['Last'] if r['Done']: print "Everything has been processed: Waiting..." time.sleep(1)