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/*-
* ============LICENSE_START=======================================================
* Simulator
* ================================================================================
* Copyright (C) 2021 Nokia. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.avcnmanager.message.forwarders;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.onap.avcnmanager.message.processing.ParsingResult;
import org.onap.avcnmanager.utils.JsonUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;
@Component
public class RestForwarder implements Forwarder {
private static final Logger LOGGER = LoggerFactory.getLogger(RestForwarder.class);
private static final String PNF_PAYLOAD_TEMPLATE = "pnfsim_payload_notification.json";
private final String pnfSimulatorEndpoint;
private final RestTemplate restTemplate;
private final String vesEndpoint;
private final HttpHeaders headers;
private final JsonNode pnfSimJson;
private final JsonUtils jsonUtils;
public RestForwarder(@Value("${rest.client.pnfsimulator.endpoint}") String pnfSimulatorEndpoint,
@Value("${rest.client.ves.endpoint}") String vesEndpoint,
RestTemplate restTemplate,
JsonUtils jsonUtils) {
this.pnfSimulatorEndpoint = pnfSimulatorEndpoint;
this.restTemplate = restTemplate;
this.vesEndpoint = vesEndpoint;
this.jsonUtils = jsonUtils;
this.headers = new HttpHeaders();
this.pnfSimJson = jsonUtils.jsonNodeFromResourceFile(PNF_PAYLOAD_TEMPLATE);
headers.setContentType(MediaType.APPLICATION_JSON);
}
@Override
public void send(ParsingResult message) {
String resultAsJson = jsonUtils.convertToJsonString(message);
JsonNode node = jsonUtils.convertToJsonNode(resultAsJson);
String payload = fillSimulatorRequest(node);
LOGGER.info("Will send payload: " + payload);
sendPayload(payload);
}
private String fillSimulatorRequest(JsonNode node) {
ObjectNode root = pnfSimJson.deepCopy();
((ObjectNode)root.get("simulatorParams")).put("vesServerUrl", vesEndpoint);
root.set("variables", node);
return root.toString();
}
private void sendPayload(String payload) {
try {
HttpEntity<String> requestEntity = new HttpEntity<>(payload, headers);
restTemplate.postForObject(pnfSimulatorEndpoint, requestEntity, String.class);
} catch (Throwable e) {
LOGGER.error("Exception occurred: " + e.getMessage() + ", while sending: " + payload + ", the payload is skipped");
LOGGER.debug("Exception details: ", e);
}
}
}
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