metron-interface/metron-alerts/src/app/service/configure-table.service.ts

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
import {Injectable} from '@angular/core';
import {Observable} from 'rxjs';
import { Subject } from 'rxjs';
import {ColumnMetadata} from '../model/column-metadata';
import {TableMetadata} from '../model/table-metadata';
import {DataSource} from './data-source';

@Injectable()
export class ConfigureTableService {

  private tableChangedSource = new Subject<string>();
  tableChanged$ = this.tableChangedSource.asObservable();

  constructor(private dataSource: DataSource) {}

  fireTableChanged() {
    this.tableChangedSource.next('table changed');
  }

  getTableMetadata(): Observable<TableMetadata> {
    return this.dataSource.getAlertTableSettings();
  }

  saveColumnMetaData(columns: ColumnMetadata[]): Observable<{}> {
    return this.dataSource.saveColumnMetaDataInAlertTableSettings(columns);
  }

  saveTableMetaData(tableMetadata: TableMetadata): Observable<TableMetadata> {
    return this.dataSource.saveAlertTableSettings(tableMetadata);
  }
}