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# Copyright 2008 Emanuele Rocca <ema@galliera.it>
# Copyright 2008 Marco De Benedetto <debe@galliera.it>
# Copyright (c) 2006-2011 Mathieu Malaterre
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
DICOM data access layer.
Write your own __getfile function to suit your needs.
"""
from lib import *
import images
def __getfile(studyUID, seriesUID, objectUID):
"""Given a studyUID, a seriesUID and an objectUID, this function must
retrieve (somehow) the corresponding DICOM file and return the filename.
Take this implementation as a rough example."""
#tmpdir = "/var/spool/dicom"
tmpdir = "/tmp/dicom"
import os
import errno
import tempfile
studydir = "%s/%s" % (tmpdir, studyUID)
seriesdir = "%s/%s" % (studydir, seriesUID)
objectfile = "%s/%s" % (seriesdir, objectUID)
if not os.path.isdir(seriesdir):
dump_file = tempfile.NamedTemporaryFile()
dump_file.write("(0008,0052) CS [STUDY]\n(0020,000d) UI [%s]" % studyUID)
dump_file.flush()
dicom_filename = dump_file.name + ".dcm"
trycmd("dump2dcm %s %s" % (dump_file.name, dicom_filename))
# Si chiede all'aetitle DW_AM (PACS) di muovere su webapps
# Per come e' definito il nodo webapps sul PACS (DW_AM) lo studio
# viene inviato sulla porta 3000
# Deve essere attivo il servizio (!!! avviato da www-data !!!) simple_storage:
# simple_storage -s -x /var/spool/dicom -n /etc/dicom/naming-convention -c webapps -f 3000
# Le immagini DICOM vengono archiviate in /var/spool/dicom/studyUID/seriersUID/objectUID
# come descritto in /etc/dicom/naming-convention
# Il servizio simple_storage forka ed e' quindi possibile ricevere piu'
# studi contemporaneamente
movecmd = "movescu --study --aetitle webapps --move webapps --call DW_AM pacs.ceed 3102"
trycmd("%s %s" % (movecmd, dicom_filename))
dump_file.close()
os.unlink(dicom_filename)
return objectfile
def get(studyUID, seriesUID, objectUID, format='jpeg'):
"""Function called by the main program to get an image."""
objectfile = __getfile(studyUID, seriesUID, objectUID)
return images.Dicom(objectfile, format)
if __name__ == "__main__":
print get(studyUID="1.3.76.13.10010.0.5.74.3996.1224256625.4053",
seriesUID="1.3.12.2.1107.5.4.4.1053.30000008100608242373400002493",
objectUID="1.3.12.2.1107.5.4.4.1053.30000008100608324685900001822")
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