metron-interface/metron-config/src/app/service/grok-validation.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, Inject} from '@angular/core';
import {Http, Headers, RequestOptions, URLSearchParams} from '@angular/http';
import {Observable} from 'rxjs/Observable';
import {GrokValidation} from '../model/grok-validation';
import {HttpUtil} from '../util/httpUtil';
import {IAppConfig} from '../app.config.interface';
import {APP_CONFIG} from '../app.config';

@Injectable()
export class GrokValidationService {
  url = this.config.apiEndpoint + '/grok';
  defaultHeaders = {'Content-Type': 'application/json', 'X-Requested-With': 'XMLHttpRequest'};

  constructor(private http: Http, @Inject(APP_CONFIG) private config: IAppConfig) {

  }

  public validate(grokValidation: GrokValidation): Observable<GrokValidation> {
    return this.http.post(this.url + '/validate', JSON.stringify(grokValidation),
      new RequestOptions({headers: new Headers(this.defaultHeaders)}))
      .map(HttpUtil.extractData)
      .catch(HttpUtil.handleError);
  }

  public list(): Observable<string[]> {
    return this.http.get(this.url + '/list', new RequestOptions({headers: new Headers(this.defaultHeaders)}))
      .map(HttpUtil.extractData)
      .catch(HttpUtil.handleError);
  }

  public getStatement(path: string): Observable<string> {
    let params: URLSearchParams = new URLSearchParams();
    params.set('path', path);
    return this.http.get(this.url + '/get/statement', new RequestOptions({headers: new Headers(this.defaultHeaders), search: params}))
        .map(HttpUtil.extractString)
        .catch(HttpUtil.handleError);
  }

}