Build WADO logic to fetch + build displaysets + generate imageIds based on prefs.

extensions/default/src/DicomWebDataSource/utils/getImageId.js

@@ -0,0 +1,51 @@
+import getWADORSImageId from './getWADORSImageId';
+
+function buildInstanceWadoUrl(config, instance) {
+  const { StudyInstanceUID, SeriesInstanceUID, SOPInstanceUID } = instance;
+  const params = [];
+
+  params.push('requestType=WADO');
+  params.push(`studyUID=${StudyInstanceUID}`);
+  params.push(`seriesUID=${SeriesInstanceUID}`);
+  params.push(`objectUID=${SOPInstanceUID}`);
+  params.push('contentType=application/dicom');
+  params.push('transferSyntax=*');
+
+  const paramString = params.join('&');
+
+  return `${config.wadoUriRoot}?${paramString}`;
+}
+
+/**
+ * Obtain an imageId for Cornerstone from an image instance
+ *
+ * @param instance
+ * @param frame
+ * @param thumbnail
+ * @returns {string} The imageId to be used by Cornerstone
+ */
+export default function getImageId({
+  instance,
+  frame,
+  config,
+  thumbnail = false,
+}) {
+  if (!instance) {
+    return;
+  }
+
+  const renderingAttr = thumbnail ? 'thumbnailRendering' : 'imageRendering';
+
+  if (!config[renderingAttr] || config[renderingAttr] === 'wadouri') {
+    const wadouri = buildInstanceWadoUrl(config, instance);
+
+    let imageId = 'dicomweb:' + wadouri;
+    if (frame !== undefined) {
+      imageId += '&frame=' + frame;
+    }
+
+    return imageId;
+  } else {
+    return getWADORSImageId(instance, config, frame); // WADO-RS Retrieve Frame
+  }
+}

extensions/default/src/DicomWebDataSource/utils/getWADORSImageId.js

@@ -0,0 +1,51 @@
+function buildInstanceWadoRsUri(instance, config) {
+  const { StudyInstanceUID, SeriesInstanceUID, SOPInstanceUID } = instance;
+  return `${config.wadoRoot}/studies/${StudyInstanceUID}/series/${SeriesInstanceUID}/instances/${SOPInstanceUID}`;
+}
+
+function buildInstanceFrameWadoRsUri(instance, config, frame) {
+  const baseWadoRsUri = buildInstanceWadoRsUri(instance, config);
+
+  frame = frame != null || 1;
+
+  return `${baseWadoRsUri}/frames/${frame}`;
+}
+
+// function getWADORSImageUrl(instance, frame) {
+//   const wadorsuri = buildInstanceFrameWadoRsUri(instance, config, frame);
+
+//   if (!wadorsuri) {
+//     return;
+//   }
+
+//   // Use null to obtain an imageId which represents the instance
+//   if (frame === null) {
+//     wadorsuri = wadorsuri.replace(/frames\/(\d+)/, '');
+//   } else {
+//     // We need to sum 1 because WADO-RS frame number is 1-based
+//     frame = frame ? parseInt(frame) + 1 : 1;
+
+//     // Replaces /frame/1 by /frame/{frame}
+//     wadorsuri = wadorsuri.replace(/frames\/(\d+)/, `frames/${frame}`);
+//   }
+
+//   return wadorsuri;
+// }
+
+/**
+ * Obtain an imageId for Cornerstone based on the WADO-RS scheme
+ *
+ * @param {object} instanceMetada metadata object (InstanceMetadata)
+ * @param {(string\|number)} [frame] the frame number
+ * @returns {string} The imageId to be used by Cornerstone
+ */
+export default function getWADORSImageId(instance, config, frame) {
+  //const uri = getWADORSImageUrl(instance, frame);
+  const uri = buildInstanceFrameWadoRsUri(instance, config, frame);
+
+  if (!uri) {
+    return;
+  }
+
+  return `wadors:${uri}`;
+}