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/**
* Copyright (c) 2018 Orange
*
* 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.servicecatalog;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.annotation.PostConstruct;
import org.apache.commons.io.IOUtils;
import org.onap.nbi.OnapComponentsUrlPaths;
import org.onap.nbi.exceptions.BackendFunctionalException;
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.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.util.UriComponentsBuilder;
/**
* @author user
*
*/
@Service
public class SdcClient {
@Autowired
private RestTemplate restTemplate;
@Value("${sdc.host}")
private String sdcHost;
@Value("${sdc.header.ecompInstanceId}")
private String ecompInstanceId;
@Value("${sdc.header.authorization}")
private String sdcHeaderAuthorization;
private static final String HEADER_ECOMP_INSTANCE_ID = "x-ecomp-instanceid";
private static final String HEADER_AUTHORIZATION = "Authorization";
private static final Logger LOGGER = LoggerFactory.getLogger(SdcClient.class);
private String sdcGetUrl;
private String sdcFindUrl;
private String sdcHealthCheck;
@PostConstruct
private void setUpAndLogSDCUrl() {
sdcGetUrl = new StringBuilder().append(sdcHost)
.append(OnapComponentsUrlPaths.SDC_ROOT_URL + "/{id}" + OnapComponentsUrlPaths.SDC_GET_PATH).toString();
sdcFindUrl = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL).toString();
sdcHealthCheck = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_HEALTH_CHECK).toString();
LOGGER.info("SDC GET url : " + sdcGetUrl);
LOGGER.info("SDC FIND url : " + sdcFindUrl);
LOGGER.info("SDC HealthCheck : " + sdcHealthCheck);
}
public Map callGet(String id) {
String callUrl = sdcGetUrl.replace("{id}", id);
UriComponentsBuilder callURLFormated = UriComponentsBuilder.fromHttpUrl(callUrl);
ResponseEntity<Object> response = callSdc(callURLFormated.build().encode().toUri());
return (LinkedHashMap) response.getBody();
}
public List<LinkedHashMap> callFind(MultiValueMap<String, String> parametersMap) {
UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(sdcFindUrl);
if (parametersMap != null) {
Map<String, String> stringStringMap = parametersMap.toSingleValueMap();
for (Entry<String, String> entry : stringStringMap.entrySet()) {
if (!entry.getKey().equals("fields")) {
callURI.queryParam(entry.getKey(), entry.getValue());
}
}
}
ResponseEntity<Object> response = callSdc(callURI.build().encode().toUri());
return (List<LinkedHashMap>) response.getBody();
}
public LinkedHashMap callCheckConnectivity() {
UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(sdcHealthCheck);
ResponseEntity<Object> response = callSdc(callURI.build().encode().toUri());
return (LinkedHashMap) response.getBody();
}
public File callGetWithAttachment(String toscaModelUrl) {
StringBuilder urlBuilder = new StringBuilder().append(sdcHost).append(toscaModelUrl);
UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(urlBuilder.toString());
File directory = new File("temptoscafile");
if (!directory.exists()) {
directory.mkdir();
}
String fileName = "temptoscafile/" + System.currentTimeMillis() + "tosca.csar";
ResponseEntity<byte[]> response = callSdcWithAttachment(callURI.build().encode().toUri());
File toscaFile = new File(fileName);
try {
FileOutputStream toscaFileStream = new FileOutputStream(toscaFile);
if (response != null) {
IOUtils.write(response.getBody(), toscaFileStream);
}
toscaFileStream.close();
} catch (IOException e) {
LOGGER.error("cannot get TOSCA File for url " + toscaModelUrl, e);
}
return toscaFile;
}
public Path getServiceToscaModel(String uuid) throws IOException {
StringBuilder urlBuilder = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL)
.append("/").append(uuid).append(OnapComponentsUrlPaths.SDC_TOSCA_PATH);
UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(urlBuilder.toString());
InputStream inputStream = (InputStream) callSdc(callURI.build().encode().toUri()).getBody();
return createTmpFile(inputStream);
}
private Path createTmpFile(InputStream csarInputStream) throws IOException {
Path csarFile = Files.createTempFile("csar", ".zip");
Files.copy(csarInputStream, csarFile, StandardCopyOption.REPLACE_EXISTING);
LOGGER.debug("Tosca file was saved at: {} ", csarFile.toAbsolutePath());
return csarFile;
}
private HttpEntity<String> buildRequestHeader() {
HttpHeaders httpHeaders = new HttpHeaders();
httpHeaders.setContentType(MediaType.APPLICATION_JSON);
httpHeaders.add(HEADER_ECOMP_INSTANCE_ID, ecompInstanceId);
httpHeaders.add(HEADER_AUTHORIZATION, sdcHeaderAuthorization);
return new HttpEntity<>("parameters", httpHeaders);
}
private ResponseEntity<Object> callSdc(URI callURI) {
ResponseEntity<Object> response =
restTemplate.exchange(callURI, HttpMethod.GET, buildRequestHeader(), Object.class);
if (LOGGER.isDebugEnabled()) {
LOGGER.debug("response body : {} ", response.getBody().toString());
}
LOGGER.info("response status : {}", response.getStatusCodeValue());
loggDebugIfResponseKo(callURI.toString(), response);
return response;
}
private ResponseEntity<byte[]> callSdcWithAttachment(URI callURI) {
try {
ResponseEntity<byte[]> response =
restTemplate.exchange(callURI, HttpMethod.GET, buildRequestHeader(), byte[].class);
LOGGER.info("response status : " + response.getStatusCodeValue());
if (LOGGER.isWarnEnabled() && !response.getStatusCode().equals(HttpStatus.OK)) {
LOGGER.warn("HTTP call SDC on {} returns {} ", callURI.toString(), response.getStatusCodeValue());
}
return response;
} catch (BackendFunctionalException e) {
LOGGER.error("HTTP call SDC on {} error : {}", callURI.toString(), e);
return null;
}
}
private void loggDebugIfResponseKo(String callURI, ResponseEntity<Object> response) {
if (LOGGER.isWarnEnabled() && !response.getStatusCode().equals(HttpStatus.OK)) {
LOGGER.warn("HTTP call SDC on {} returns {} , {}", callURI, response.getStatusCodeValue(),
response.getBody().toString());
}
}
}
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