update folder structure based on style guide

src/app/admin/admin-import-metadata-page/metadata-import-page.component.ts

@@ -0,0 +1,84 @@
+import { Location } from '@angular/common';
+import { Component, OnInit } from '@angular/core';
+import { Router } from '@angular/router';
+import { TranslateService } from '@ngx-translate/core';
+import { Observable } from 'rxjs';
+import { map, switchMap } from 'rxjs/operators';
+import { AuthService } from '../../core/auth/auth.service';
+import { METADATA_IMPORT_SCRIPT_NAME, ScriptDataService } from '../../core/data/processes/script-data.service';
+import { EPerson } from '../../core/eperson/models/eperson.model';
+import { ProcessParameter } from '../../process-page/processes/process-parameter.model';
+import { isNotEmpty } from '../../shared/empty.util';
+import { NotificationsService } from '../../shared/notifications/notifications.service';
+import { RemoteData } from '../../core/data/remote-data';
+import { Process } from '../../process-page/processes/process.model';
+import { getFirstCompletedRemoteData } from '../../core/shared/operators';
+import { getProcessDetailRoute } from '../../process-page/process-page-routing.paths';
+
+@Component({
+  selector: 'ds-metadata-import-page',
+  templateUrl: './metadata-import-page.component.html'
+})
+
+/**
+ * Component that represents a metadata import page for administrators
+ */
+export class MetadataImportPageComponent {
+
+  /**
+   * The current value of the file
+   */
+  fileObject: File;
+
+  public constructor(private location: Location,
+                     protected translate: TranslateService,
+                     protected notificationsService: NotificationsService,
+                     private scriptDataService: ScriptDataService,
+                     private router: Router) {
+  }
+
+  /**
+   * Set file
+   * @param file
+   */
+  setFile(file) {
+    this.fileObject = file;
+  }
+
+  /**
+   * When return button is pressed go to previous location
+   */
+  public onReturn() {
+    this.location.back();
+  }
+
+  /**
+   * Starts import-metadata script with -f fileName (and the selected file)
+   */
+  public importMetadata() {
+    if (this.fileObject == null) {
+      this.notificationsService.error(this.translate.get('admin.metadata-import.page.error.addFile'));
+    } else {
+      const parameterValues: ProcessParameter[] = [
+        Object.assign(new ProcessParameter(), { name: '-f', value: this.fileObject.name }),
+      ];
+
+      this.scriptDataService.invoke(METADATA_IMPORT_SCRIPT_NAME, parameterValues, [this.fileObject]).pipe(
+        getFirstCompletedRemoteData(),
+      ).subscribe((rd: RemoteData<Process>) => {
+        if (rd.hasSucceeded) {
+          const title = this.translate.get('process.new.notification.success.title');
+          const content = this.translate.get('process.new.notification.success.content');
+          this.notificationsService.success(title, content);
+          if (isNotEmpty(rd.payload)) {
+            this.router.navigateByUrl(getProcessDetailRoute(rd.payload.processId));
+          }
+        } else {
+          const title = this.translate.get('process.new.notification.error.title');
+          const content = this.translate.get('process.new.notification.error.content');
+          this.notificationsService.error(title, content);
+        }
+      });
+    }
+  }
+}