26b14f1dab
* Small refactor into Table Class setting events as static object into class * feature(STOW-SR) : Initial changes to stow when we have Server. * Improvements into requests and small fix into style * Small fix for jumpToRow without refheshing page * Handling STOW-SR once we don't have server * feature(STOW-SR) Refactor * Merge request with makeRequest and delete old file * Expose wadoproxy to client and update measurement-table to start using wadoproxy.getServerUrl * Move WADOProxy.getServerUrl to Measurement-table package. Fix querystring issue. * Remove proxy:enabled in favour of requestOptions.requestFromBrowser * Bcrypt 2.0.0 to fix Travis
98 lines
4.1 KiB
JavaScript
98 lines
4.1 KiB
JavaScript
import { Meteor } from 'meteor/meteor';
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import { OHIF } from 'meteor/ohif:core';
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import 'meteor/ohif:viewerbase';
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// Define the StudyMetaDataPromises object. This is used as a cache to store study meta data
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// promises and prevent unnecessary subsequent calls to the server
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const StudyMetaDataPromises = new Map();
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/**
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* Delete the cached study metadata retrieval promise to ensure that the browser will
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* re-retrieve the study metadata when it is next requested
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*
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* @param {String} studyInstanceUid The UID of the Study to be removed from cache
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*
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*/
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OHIF.studies.deleteStudyMetadataPromise = (studyInstanceUid) => {
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if (StudyMetaDataPromises.has(studyInstanceUid)) {
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StudyMetaDataPromises.delete(studyInstanceUid);
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}
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};
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/**
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* Retrieves study metadata using a server call
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*
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* @param {String} studyInstanceUid The UID of the Study to be retrieved
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* @returns {Promise} that will be resolved with the metadata or rejected with the error
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*/
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OHIF.studies.retrieveStudyMetadata = (studyInstanceUid, seriesInstanceUids) => {
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// @TODO: Whenever a study metadata request has failed, its related promise will be rejected once and for all
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// and further requests for that metadata will always fail. On failure, we probably need to remove the
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// corresponding promise from the "StudyMetaDataPromises" map...
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// If the StudyMetaDataPromises cache already has a pending or resolved promise related to the
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// given studyInstanceUid, then that promise is returned
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if (StudyMetaDataPromises.has(studyInstanceUid)) {
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return StudyMetaDataPromises.get(studyInstanceUid);
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}
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const seriesKeys = Array.isArray(seriesInstanceUids) ? '|' + seriesInstanceUids.join('|') : '';
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const timingKey = `retrieveStudyMetadata[${studyInstanceUid}${seriesKeys}]`;
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OHIF.log.time(timingKey);
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// Create a promise to handle the data retrieval
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const promise = new Promise((resolve, reject) => {
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const server = OHIF.servers.getCurrentServer();
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// If no study metadata is in the cache variable, we need to retrieve it from
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// the server with a call.
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if (server.type === 'dicomWeb' && server.requestOptions.requestFromBrowser === true) {
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OHIF.studies.services.WADO.RetrieveMetadata(server, studyInstanceUid).then(function (data) {
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resolve(data)
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}, reject);
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} else {
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Meteor.call('GetStudyMetadata', studyInstanceUid, function (error, study) {
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OHIF.log.timeEnd(timingKey);
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if (error) {
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const errorType = error.error;
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let errorMessage = '';
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if (errorType === 'server-connection-error') {
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errorMessage = 'There was an error connecting to the DICOM server, please verify if it is up and running.';
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} else if (errorType === 'server-internal-error') {
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errorMessage = `There was an internal error with the DICOM server getting metadeta for ${studyInstanceUid}`;
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} else {
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errorMessage = `For some reason we could not retrieve the study\'s metadata for ${studyInstanceUid}.`;
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}
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OHIF.log.error(errorMessage);
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OHIF.log.error(error.stack);
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reject(`GetStudyMetadata: ${errorMessage}`);
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return;
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}
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// Filter series if seriesInstanceUid exists
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if (seriesInstanceUids && seriesInstanceUids.length) {
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study.seriesList = study.seriesList.filter(series => seriesInstanceUids.indexOf(series.seriesInstanceUid) > -1);
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}
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if (!study) {
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reject(`GetStudyMetadata: No study data returned from server: ${studyInstanceUid}`);
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return;
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}
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// Resolve the promise with the final study metadata object
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resolve(study);
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});
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}
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});
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// Store the promise in cache
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StudyMetaDataPromises.set(studyInstanceUid, promise);
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return promise;
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};
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