(front) Albums: exlude some results and reload

Create a new service for albums to split big ElsService

dashboard/src/app/els-album.service.ts

@@ -0,0 +1,78 @@
+import { Injectable } from '@angular/core';
+import { HttpClient, HttpHeaders } from '@angular/common/http'
+
+import { Observable } from 'rxjs';
+import { map, catchError } from 'rxjs/operators';
+
+import { Album } from './model/album';
+import { ElsService } from './els.service';
+
+@Injectable()
+export class ElsAlbumService extends ElsService {
+  public static readonly GET_ALBUMS_DEFAULT_QUERY = {
+    'sort': [ {
+      'Avg Bit Rate': {
+        'order': 'asc'
+      }
+    } ],
+    'size': ElsService.DEFAULT_SIZE
+  }
+
+  constructor(protected http: HttpClient) {
+    super(http);
+  }
+
+  getAlbums(query: any): Observable<Album[]> {
+    console.info('getAlbums');
+    console.info(query);
+    return this.http
+      .post(this.elsUrl + ElsService.ALBUM_INDEX_NAME + ElsService.ACTION_SEARCH,
+        JSON.stringify(query), {headers: this.headers})
+      .pipe(
+        map(res => this.responseToAlbums(res)),
+        catchError(error => this.handleError(error, 'getAlbums'))
+      );
+  }
+
+  getAlbumsFiltered(size: number): Observable<Album[]> {
+    // http://localhost:9200/itunes-albums/_search
+    console.info('getAlbums');
+    return this.http
+      .post(this.elsUrl + ElsService.ALBUM_INDEX_NAME + ElsService.ACTION_SEARCH,
+        JSON.stringify({
+          'sort': [ {
+            'Avg Bit Rate': {
+              'order': 'asc'
+            }
+          } ],
+          'size': size,
+          'query': {
+            'bool': {
+              'must': [],
+              'filter': [
+                {
+                  'match_all': {}
+                }
+              ],
+              'should': [],
+              'must_not': [
+                {
+                  'match_phrase': {
+                    'Artist': 'François Pérusse'
+                  }
+                },
+                {
+                  'match_phrase': {
+                    'Album Artist': 'Comédiens'
+                  }
+                }
+              ]
+            }
+          }
+        }), {headers: this.headers})
+      .pipe(
+        map(res => this.responseToAlbums(res)),
+        catchError(error => this.handleError(error, 'getAlbums'))
+      );
+  }
+}