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/**
* Copyright (c) 2019 Amdocs
*
* 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.
*/
package org.onap.nbi.apis.hub;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.onap.nbi.apis.hub.model.Subscription;
import org.onap.nbi.exceptions.BackendFunctionalException;
import org.onap.nbi.exceptions.TechnicalException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.*;
import org.springframework.stereotype.Service;
import org.springframework.web.client.ResourceAccessException;
import org.springframework.web.client.RestTemplate;
@Service
public class ExtApiClientForHub {
@Autowired
RestTemplate restTemplate;
@Value("${external.nbi.url}")
private String externalNbiUrl;
@Value("${nbi.url}")
private String nbiUrl;
private static final Logger LOGGER = LoggerFactory.getLogger(ExtApiClientForHub.class);
private static final ObjectMapper mapper = new ObjectMapper();
public ResponseEntity<Object> postEventSubscription(Subscription subscription, String targetURL) {
try {
String url = externalNbiUrl.replace("{targetUrl}", targetURL) + "/hub";
LOGGER.debug("Sending create event notification request to " + url);
String nbiListenerUrl = nbiUrl + "/listener";
subscription.setCallback(nbiListenerUrl);
String subscriptionAsBody = mapper.writeValueAsString(subscription);
ResponseEntity<Object> response = postRequest(url, subscriptionAsBody, buildRequestHeaders());
LOGGER.info("Received response from " + targetURL + "with status : " + response.getStatusCode());
LOGGER.debug("Response Body: " + response.getBody());
return response;
}catch(JsonProcessingException ex) {
LOGGER.error("error occurred while parsing service order to Json: " + ex);
throw new TechnicalException("error occurred while parsing service order to Json:"+ HttpStatus.INTERNAL_SERVER_ERROR);
}
}
private HttpHeaders buildRequestHeaders() {
HttpHeaders httpHeaders = new HttpHeaders();
httpHeaders.add("Accept", "application/json");
httpHeaders.add("Content-Type", "application/json");
return httpHeaders;
}
private ResponseEntity<Object> postRequest(String url, String body, HttpHeaders httpHeaders) {
try {
ResponseEntity<Object> response = restTemplate.exchange(url, HttpMethod.POST, new HttpEntity<>(body, httpHeaders), Object.class);
return response;
}catch(BackendFunctionalException ex) {
LOGGER.error("error on calling " + url + " ," + ex);
return new ResponseEntity<>("problem calling onap services", ex.getHttpStatus());
}catch (ResourceAccessException ex) {
LOGGER.error("error on calling " + url + " ," + ex);
return new ResponseEntity<>("unable to reach onap services", HttpStatus.INTERNAL_SERVER_ERROR);
}
}
}
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