Mercurial > hg > orthanc
view Plugins/Samples/ModalityWorklists/Plugin.cpp @ 2737:8ed9893c9230
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sun, 15 Jul 2018 16:41:43 +0200 |
parents | 878b59270859 |
children | d4fd4614f275 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2018 Osimis S.A., 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/>. **/ #include "../Common/OrthancPluginCppWrapper.h" #include <boost/filesystem.hpp> #include <json/value.h> #include <json/reader.h> #include <string.h> #include <iostream> #include <algorithm> static OrthancPluginContext* context_ = NULL; static std::string folder_; static bool filterIssuerAet_ = false; /** * This is the main function for matching a DICOM worklist against a query. **/ static bool MatchWorklist(OrthancPluginWorklistAnswers* answers, const OrthancPluginWorklistQuery* query, const OrthancPlugins::FindMatcher& matcher, const std::string& path) { OrthancPlugins::MemoryBuffer dicom(context_); dicom.ReadFile(path); if (matcher.IsMatch(dicom)) { // This DICOM file matches the worklist query, add it to the answers OrthancPluginErrorCode code = OrthancPluginWorklistAddAnswer (context_, answers, query, dicom.GetData(), dicom.GetSize()); if (code != OrthancPluginErrorCode_Success) { OrthancPlugins::LogError(context_, "Error while adding an answer to a worklist request"); ORTHANC_PLUGINS_THROW_PLUGIN_ERROR_CODE(code); } return true; } return false; } static OrthancPlugins::FindMatcher* CreateMatcher(const OrthancPluginWorklistQuery* query, const char* issuerAet) { // Extract the DICOM instance underlying the C-Find query OrthancPlugins::MemoryBuffer dicom(context_); dicom.GetDicomQuery(query); // Convert the DICOM as JSON, and dump it to the user in "--verbose" mode Json::Value json; dicom.DicomToJson(json, OrthancPluginDicomToJsonFormat_Short, static_cast<OrthancPluginDicomToJsonFlags>(0), 0); OrthancPlugins::LogInfo(context_, "Received worklist query from remote modality " + std::string(issuerAet) + ":\n" + json.toStyledString()); if (!filterIssuerAet_) { return new OrthancPlugins::FindMatcher(context_, query); } else { // Alternative sample showing how to fine-tune an incoming C-Find // request, before matching it against the worklist database. The // code below will restrict the original DICOM request by // requesting the ScheduledStationAETitle to correspond to the AET // of the C-Find issuer. This code will make the integration test // "test_filter_issuer_aet" succeed (cf. the orthanc-tests repository). static const char* SCHEDULED_PROCEDURE_STEP_SEQUENCE = "0040,0100"; static const char* SCHEDULED_STATION_AETITLE = "0040,0001"; if (!json.isMember(SCHEDULED_PROCEDURE_STEP_SEQUENCE)) { // Create a ScheduledProcedureStepSequence sequence, with one empty element json[SCHEDULED_PROCEDURE_STEP_SEQUENCE] = Json::arrayValue; json[SCHEDULED_PROCEDURE_STEP_SEQUENCE].append(Json::objectValue); } Json::Value& v = json[SCHEDULED_PROCEDURE_STEP_SEQUENCE]; if (v.type() != Json::arrayValue || v.size() != 1 || v[0].type() != Json::objectValue) { ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat); } // Set the ScheduledStationAETitle if none was provided if (!v[0].isMember(SCHEDULED_STATION_AETITLE) || v[0].type() != Json::stringValue || v[0][SCHEDULED_STATION_AETITLE].asString().size() == 0 || v[0][SCHEDULED_STATION_AETITLE].asString() == "*") { v[0][SCHEDULED_STATION_AETITLE] = issuerAet; } if (json.isMember("0010,21c0") && json["0010,21c0"].asString().size() == 0) { json.removeMember("0010,21c0"); } // Encode the modified JSON as a DICOM instance, then convert it to a C-Find matcher OrthancPlugins::MemoryBuffer modified(context_); modified.CreateDicom(json, OrthancPluginCreateDicomFlags_None); return new OrthancPlugins::FindMatcher(context_, modified); } } OrthancPluginErrorCode Callback(OrthancPluginWorklistAnswers* answers, const OrthancPluginWorklistQuery* query, const char* issuerAet, const char* calledAet) { try { // Construct an object to match the worklists in the database against the C-Find query std::auto_ptr<OrthancPlugins::FindMatcher> matcher(CreateMatcher(query, issuerAet)); // Loop over the regular files in the database folder namespace fs = boost::filesystem; fs::path source(folder_); fs::directory_iterator end; int parsedFilesCount = 0; int matchedWorklistCount = 0; try { for (fs::directory_iterator it(source); it != end; ++it) { fs::file_type type(it->status().type()); if (type == fs::regular_file || type == fs::reparse_file) // cf. BitBucket issue #11 { std::string extension = fs::extension(it->path()); std::transform(extension.begin(), extension.end(), extension.begin(), tolower); // Convert to lowercase if (extension == ".wl") { parsedFilesCount++; // We found a worklist (i.e. a DICOM find with extension ".wl"), match it against the query if (MatchWorklist(answers, query, *matcher, it->path().string())) { OrthancPlugins::LogInfo(context_, "Worklist matched: " + it->path().string()); matchedWorklistCount++; } } } } std::ostringstream message; message << "Worklist C-Find: parsed " << parsedFilesCount << " files, found " << matchedWorklistCount << " match(es)"; OrthancPlugins::LogInfo(context_, message.str()); } catch (fs::filesystem_error&) { OrthancPlugins::LogError(context_, "Inexistent folder while scanning for worklists: " + source.string()); return OrthancPluginErrorCode_DirectoryExpected; } // Uncomment the following line if too many answers are to be returned // OrthancPluginMarkWorklistAnswersIncomplete(context_, answers); return OrthancPluginErrorCode_Success; } catch (OrthancPlugins::PluginException& e) { return e.GetErrorCode(); } } extern "C" { ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c) { context_ = c; /* Check the version of the Orthanc core */ if (OrthancPluginCheckVersion(c) == 0) { OrthancPlugins::ReportMinimalOrthancVersion(context_, ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); return -1; } OrthancPlugins::LogWarning(context_, "Sample worklist plugin is initializing"); OrthancPluginSetDescription(context_, "Serve DICOM modality worklists from a folder with Orthanc."); OrthancPlugins::OrthancConfiguration configuration(context_); OrthancPlugins::OrthancConfiguration worklists; configuration.GetSection(worklists, "Worklists"); bool enabled = worklists.GetBooleanValue("Enable", false); if (enabled) { if (worklists.LookupStringValue(folder_, "Database")) { OrthancPlugins::LogWarning(context_, "The database of worklists will be read from folder: " + folder_); OrthancPluginRegisterWorklistCallback(context_, Callback); } else { OrthancPlugins::LogError(context_, "The configuration option \"Worklists.Database\" must contain a path"); return -1; } filterIssuerAet_ = worklists.GetBooleanValue("FilterIssuerAet", false); } else { OrthancPlugins::LogWarning(context_, "Worklist server is disabled by the configuration file"); } return 0; } ORTHANC_PLUGINS_API void OrthancPluginFinalize() { OrthancPluginLogWarning(context_, "Sample worklist plugin is finalizing"); } ORTHANC_PLUGINS_API const char* OrthancPluginGetName() { return "worklists"; } ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() { return MODALITY_WORKLISTS_VERSION; } }