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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* Copyright (C) 2017 Huawei Technologies Co., Ltd. All rights reserved.
* ================================================================================
* Modifications Copyright (C) 2018 IBM.
* Modifications Copyright (c) 2019 Samsung
* ================================================================================
* 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.so.adapters.sdnc.sdncrest;
import java.net.URI;
import javax.xml.bind.DatatypeConverter;
import org.onap.logging.filter.spring.SpringClientPayloadFilter;
import org.onap.so.adapters.sdnc.impl.Constants;
import org.onap.logging.filter.base.ErrorCode;
import org.onap.so.logger.LoggingAnchor;
import org.onap.so.logger.MessageEnum;
import org.onap.so.logging.jaxrs.filter.SOSpringClientFilter;
import org.onap.so.utils.CryptoUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.http.client.BufferingClientHttpRequestFactory;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.client.HttpStatusCodeException;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.util.UriComponentsBuilder;
/**
* Sends asynchronous messages to the BPMN WorkflowMessage service.
*/
@Component
public class BPRestCallback {
private static final Logger logger = LoggerFactory.getLogger(BPRestCallback.class);
private static final String CAMUNDA = "Camunda";
private static final String MSO_INTERNAL_ERROR = "MsoInternalError";
@Autowired
private Environment env;
/**
* Sends a message to the BPMN workflow message service. The URL path is constructed using the specified message
* type and correlator.
*
* @param workflowMessageUrl the base BPMN WorkflowMessage URL
* @param messageType the message type
* @param correlator the message correlator
* @param message the JSON content
* @return true if the message was consumed successfully by the endpoint
*/
public boolean send(String workflowMessageUrl, String messageType, String correlator, String message) {
logger.debug(getClass().getSimpleName() + ".send(" + "workflowMessageUrl=" + workflowMessageUrl
+ " messageType=" + messageType + " correlator=" + correlator + " message=" + message + ")");
while (workflowMessageUrl.endsWith("/")) {
workflowMessageUrl = workflowMessageUrl.substring(0, workflowMessageUrl.length() - 1);
}
String endpoint = workflowMessageUrl + "/" + SDNCAdapterUtils.encodeURLPathSegment(messageType) + "/"
+ SDNCAdapterUtils.encodeURLPathSegment(correlator);
return send(endpoint, message);
}
/**
* Sends a message to the BPMN workflow message service. The specified URL must have the message type and correlator
* already embedded in it.
*
* @param url the endpoint URL
* @param message the JSON content
* @return true if the message was consumed successfully by the endpoint
*/
public boolean send(String url, String message) {
logger.debug(getClass().getSimpleName() + ".send(" + "url=" + url + " message=" + message + ")");
logger.info(LoggingAnchor.THREE, MessageEnum.RA_CALLBACK_BPEL.toString(),
message == null ? "[no content]" : message, CAMUNDA);
try {
int timeout = 60 * 1000;
RestTemplate restTemplate = setRestTemplate(timeout);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
boolean error = setAuthorizationHeader(headers);
HttpEntity<String> requestEntity = new HttpEntity<>(message, headers);
if (!error) {
postRequest(restTemplate, url, requestEntity);
}
logger.info(LoggingAnchor.TWO, MessageEnum.RA_CALLBACK_BPEL_COMPLETE.toString(), CAMUNDA);
return true;
} catch (Exception e) {
logger.error(LoggingAnchor.FOUR, MessageEnum.RA_CALLBACK_BPEL_EXC.toString(), CAMUNDA,
ErrorCode.BusinessProcessError.getValue(), "Error sending callback request", e);
return false;
}
}
protected boolean setAuthorizationHeader(HttpHeaders headers) {
boolean error = false;
try {
String userCredentials = CryptoUtils.decrypt(env.getProperty(Constants.BPEL_AUTH_PROP),
env.getProperty(Constants.ENCRYPTION_KEY_PROP));
String authorization = "Basic " + DatatypeConverter.printBase64Binary(userCredentials.getBytes());
headers.set("Authorization", authorization);
} catch (Exception e) {
logger.error(LoggingAnchor.FOUR, MessageEnum.RA_SET_CALLBACK_AUTH_EXC.toString(), CAMUNDA,
ErrorCode.BusinessProcessError.getValue(), "Unable to set authorization in callback request", e);
error = true;
}
return error;
}
private void postRequest(RestTemplate restTemplate, String url, HttpEntity<String> requestEntity) {
ResponseEntity<String> response = null;
try {
UriComponentsBuilder builder = UriComponentsBuilder.fromUriString(url);
URI uri = builder.build(true).toUri();
response = restTemplate.postForEntity(uri, requestEntity, String.class);
} catch (HttpStatusCodeException e) {
logResponseError(e.getStatusCode());
}
if (response != null && response.getStatusCode().is3xxRedirection()) {
logResponseError(response.getStatusCode());
}
}
private void logResponseError(HttpStatus statusCode) {
String msg = "Received error response to callback request: " + statusCode;
logger.error(LoggingAnchor.FOUR, MessageEnum.RA_CALLBACK_BPEL_EXC.toString(), CAMUNDA,
ErrorCode.BusinessProcessError.getValue(), msg);
}
protected RestTemplate setRestTemplate(int timeout) {
RestTemplate restTemplate = new RestTemplate();
HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
factory.setConnectionRequestTimeout(timeout);
factory.setReadTimeout(timeout);
factory.setConnectTimeout(timeout);
restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(factory));
restTemplate.getInterceptors().add(new SOSpringClientFilter());
restTemplate.getInterceptors().add((new SpringClientPayloadFilter()));
return restTemplate;
}
}
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