Mercurial > hg > orthanc
annotate OrthancServer/Resources/Samples/Python/HighPerformanceAutoRouting.py @ 5640:f7adfb22e20e
updated copyright, as Orthanc Team now replaces Osimis
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
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| date | Thu, 30 May 2024 21:19:57 +0200 |
| parents | 48b8dae6dc77 |
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| rev | line source |
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| 404 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
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4 # Orthanc - A Lightweight, RESTful DICOM Store |
| 1900 | 5 # Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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6 # Department, University Hospital of Liege, Belgium |
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7 # Copyright (C) 2017-2023 Osimis S.A., Belgium |
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8 # Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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9 # Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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10 # |
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11 # This program is free software: you can redistribute it and/or |
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12 # modify it under the terms of the GNU General Public License as |
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13 # published by the Free Software Foundation, either version 3 of the |
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14 # License, or (at your option) any later version. |
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15 # |
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16 # This program is distributed in the hope that it will be useful, but |
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17 # WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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19 # General Public License for more details. |
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20 # |
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21 # You should have received a copy of the GNU General Public License |
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22 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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23 |
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24 |
| 404 | 25 |
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26 URL = 'http://127.0.0.1:8042' |
| 404 | 27 TARGET = 'sample' |
| 28 | |
| 29 | |
| 30 # | |
| 31 # This sample code shows how to setup a simple, high-performance DICOM | |
| 32 # auto-routing. All the DICOM instances that arrive inside Orthanc | |
| 33 # will be sent to a remote modality. A producer-consumer pattern is | |
| 34 # used. The target modality is specified by the TARGET variable above: | |
| 35 # It must match an entry in the Orthanc configuration file inside the | |
| 36 # "DicomModalities" section. | |
| 37 # | |
| 38 # NOTE: This sample only works with Orthanc >= 0.5.2. Make sure that | |
| 39 # Orthanc was built with "-DCMAKE_BUILD_TYPE=Release" to get the best | |
| 40 # performance. | |
| 41 # | |
| 42 | |
| 43 import Queue | |
| 44 import sys | |
| 45 import time | |
| 46 import threading | |
| 47 | |
| 48 import RestToolbox | |
| 49 | |
| 50 | |
| 51 # | |
| 52 # Queue that is shared between the producer and the consumer | |
| 53 # threads. It holds the instances that are still to be sent. | |
| 54 # | |
| 55 | |
| 56 queue = Queue.Queue() | |
| 57 | |
| 58 | |
| 59 # | |
| 60 # The producer thread. It monitors the arrival of new instances into | |
| 61 # Orthanc, and pushes their ID into the shared queue. This code is | |
| 62 # based upon the "ChangesLoop.py" sample code. | |
| 63 # | |
| 64 | |
| 65 def Producer(queue): | |
| 66 current = 0 | |
| 67 | |
| 68 while True: | |
| 69 r = RestToolbox.DoGet(URL + '/changes', { | |
| 70 'since' : current, | |
| 71 'limit' : 4 # Retrieve at most 4 changes at once | |
| 72 }) | |
| 73 | |
| 74 for change in r['Changes']: | |
| 3340 | 75 # We are only interested in the arrival of new instances |
| 404 | 76 if change['ChangeType'] == 'NewInstance': |
| 77 queue.put(change['ID']) | |
| 78 | |
| 79 current = r['Last'] | |
| 80 | |
| 81 if r['Done']: | |
| 82 time.sleep(1) | |
| 83 | |
| 84 | |
| 85 # | |
| 86 # The consumer thread. It continuously reads the instances from the | |
| 87 # queue, and send them to the remote modality. Each time a packet of | |
| 88 # instances is sent, a single DICOM connexion is used, hence improving | |
| 89 # the performance. | |
| 90 # | |
| 91 | |
| 92 def Consumer(queue): | |
| 93 TIMEOUT = 0.1 | |
| 94 | |
| 95 while True: | |
| 96 instances = [] | |
| 97 | |
| 98 while True: | |
| 99 try: | |
| 100 # Block for a while, waiting for the arrival of a new | |
| 101 # instance | |
| 102 instance = queue.get(True, TIMEOUT) | |
| 103 | |
| 104 # A new instance has arrived: Record its ID | |
| 105 instances.append(instance) | |
| 106 queue.task_done() | |
| 107 | |
| 108 except Queue.Empty: | |
| 109 # Timeout: No more data was received | |
| 110 break | |
| 111 | |
| 112 if len(instances) > 0: | |
| 1184 | 113 print('Sending a packet of %d instances' % len(instances)) |
| 404 | 114 start = time.time() |
| 115 | |
| 116 # Send all the instances with a single DICOM connexion | |
| 117 RestToolbox.DoPost('%s/modalities/sample/store' % URL, instances) | |
| 118 | |
| 119 # Remove all the instances from Orthanc | |
| 120 for instance in instances: | |
| 121 RestToolbox.DoDelete('%s/instances/%s' % (URL, instance)) | |
| 122 | |
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123 # Clear the log of the exported instances (to prevent the |
| 1143 | 124 # SQLite database from growing indefinitely). More simply, |
| 125 # you could also set the "LogExportedResources" option to | |
| 1144 | 126 # "false" in the configuration file since Orthanc 0.8.3. |
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127 RestToolbox.DoDelete('%s/exports' % URL) |
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128 |
| 404 | 129 end = time.time() |
| 1184 | 130 print('The packet of %d instances has been sent in %d seconds' % (len(instances), end - start)) |
| 404 | 131 |
| 132 | |
| 133 # | |
| 134 # Thread to display the progress | |
| 135 # | |
| 136 | |
| 137 def PrintProgress(queue): | |
| 138 while True: | |
| 1184 | 139 print('Current queue size: %d' % (queue.qsize())) |
| 404 | 140 time.sleep(1) |
| 141 | |
| 142 | |
| 143 # | |
| 144 # Start the various threads | |
| 145 # | |
| 146 | |
| 147 progress = threading.Thread(None, PrintProgress, None, (queue, )) | |
| 148 progress.daemon = True | |
| 149 progress.start() | |
| 150 | |
| 151 producer = threading.Thread(None, Producer, None, (queue, )) | |
| 152 producer.daemon = True | |
| 153 producer.start() | |
| 154 | |
| 155 consumer = threading.Thread(None, Consumer, None, (queue, )) | |
| 156 consumer.daemon = True | |
| 157 consumer.start() | |
| 158 | |
| 159 | |
| 160 # | |
| 161 # Active waiting for Ctrl-C | |
| 162 # | |
| 163 | |
| 164 while True: | |
| 165 time.sleep(0.1) |