[WIP] Moving new Hanging-Protocol bootstrap from Nucleus to OHIF Viewers

Packages/ohif-viewerbase/client/lib/classes/StudyMetadataSource.js

@@ -0,0 +1,29 @@
+import { OHIFError } from './OHIFError';
+
+/**
+ * Abstract class to fetch study metadata.
+ */
+export class StudyMetadataSource {
+
+  /**
+   * Get study metadata for a given study info
+   * @param  {Object} studyInfo Study info object
+   */
+  getByStudyInfo(studyInfo) {
+    /**
+     * Please override this method on a specialized class.
+     */
+    throw new OHIFError('StudyMetadataSource::getByStudyInfo is not overriden. Please, override it in a specialized class. See OHIFStudyMetadataSource for example');
+  }
+
+  /**
+   * Get study metadata for a study with given study InstanceUID
+   * @param  {String} studyInstanceUID Study InstanceUID
+   */
+  getByInstanceUID(studyInstanceUID) {
+    /**
+     * Please override this method on a specialized class.
+     */
+    throw new OHIFError('StudyMetadataSource::getByInstanceUID is not overriden. Please, override it in a specialized class. See OHIFStudyMetadataSource for example');
+  }
+}