2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 Nordix Foundation.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.sdnc.northbound.restadapter;
23 import org.springframework.http.HttpEntity;
24 import org.springframework.http.HttpHeaders;
25 import org.springframework.http.HttpMethod;
26 import org.springframework.http.MediaType;
27 import org.springframework.http.ResponseEntity;
28 import org.springframework.web.client.RestTemplate;
31 * This class provides the Generic Rest Adapter interface to the RestTemplate
33 * @author lathishbabu.ganesan@est.tech
37 public class RestAdapterImpl implements RestAdapter {
39 private RestTemplate restTemplate;
41 public RestAdapterImpl() {
42 restTemplate = new RestTemplate();
45 private HttpEntity<?> getHttpEntity(final Object object) {
46 return new HttpEntity<>(object);
50 public <T> ResponseEntity<T> get(String uri, Class<?> clazz) {
51 HttpEntity<?> entity = getHttpEntity(null);
52 return invokeHttpRequest(uri, HttpMethod.GET, clazz, entity);
56 public <T> ResponseEntity<T> put(String uri, String body, Class<T> clazz) {
57 HttpHeaders headers = new HttpHeaders();
58 headers.setContentType(MediaType.APPLICATION_JSON);
59 HttpEntity<String> entity = new HttpEntity<>(body, headers);
60 return invokeHttpRequest(uri, HttpMethod.PUT, clazz, entity);
64 public <T> ResponseEntity<T> delete(String uri) {
65 HttpEntity<?> entity = getHttpEntity(null);
66 return invokeHttpRequest(uri, HttpMethod.DELETE, null, entity);
69 @SuppressWarnings("unchecked")
70 private <T> ResponseEntity<T> invokeHttpRequest(String uri, HttpMethod httpMethod, Class<?> clazz,
71 HttpEntity<?> entity) {
72 return (ResponseEntity<T>) restTemplate.exchange(uri, httpMethod, entity, clazz);