Reorganize dashboard into subfolders

[portal/ric-dashboard.git] / dashboard / webapp-frontend / src / app / services / instance-selector / instance-selector.service.ts

diff --git a/dashboard/webapp-frontend/src/app/services/instance-selector/instance-selector.service.ts b/dashboard/webapp-frontend/src/app/services/instance-selector/instance-selector.service.ts
new file mode 100644 (file)
index 0000000..c1afb18
--- /dev/null
+++ b/dashboard/webapp-frontend/src/app/services/instance-selector/instance-selector.service.ts
@@ -0,0 +1,63 @@
+/*-
+ * ========================LICENSE_START=================================
+ * O-RAN-SC
+ * %%
+ * Copyright (C) 2019 AT&T Intellectual Property
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ========================LICENSE_END===================================
+ */
+
+import { HttpClient } from '@angular/common/http';
+import { Injectable } from '@angular/core';
+import { BehaviorSubject, Observable } from 'rxjs';
+import { shareReplay, tap } from 'rxjs/operators';
+import { RicInstance, RicRegion } from '../../interfaces/dashboard.types';
+import { DashboardService } from '../dashboard/dashboard.service';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class InstanceSelectorService {
+
+  private allInstances: Observable<RicRegion[]>;
+  private selectedInstance: BehaviorSubject<RicInstance> = new BehaviorSubject<RicInstance>({ key: '', name: '' });
+
+  constructor(
+    private dashboardSvc: DashboardService,
+    private httpClient: HttpClient) {
+  }
+
+  getAllInstances(): Observable<RicRegion[]> {
+    if (this.allInstances) {
+      return this.allInstances;
+    }
+    const path = this.dashboardSvc.buildPath('admin', null, 'instance');
+    return this.allInstances = this.httpClient.get<RicRegion[]>(path)
+      .pipe(
+        shareReplay(1)
+      );
+  }
+
+  // This method may return the BehaviorSubject with empty value
+  // Afther subscribe that BehaviorSubject
+  // Please make sure this BehaviorSubject has non empty value
+  getSelectedInstance(): BehaviorSubject<RicInstance> {
+    return this.selectedInstance;
+  }
+
+  updateSelectedInstance(instance: RicInstance) {
+    this.selectedInstance.next(instance);
+  }
+
+}