src/main/java/org/onap/nbi/apis/servicecatalog/SdcClient.java

   1 /**
   2  * Copyright (c) 2018 Orange
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   5  * in compliance with the License. You may obtain a copy of the License at
   6  *
   7  * http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software distributed under the License
  10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  11  * or implied. See the License for the specific language governing permissions and limitations under
  12  * the License.
  13  */
  14
  15 package org.onap.nbi.apis.servicecatalog;
  16
  17 import java.io.File;
  18 import java.io.FileOutputStream;
  19 import java.io.IOException;
  20 import java.io.InputStream;
  21 import java.net.URI;
  22 import java.nio.file.Files;
  23 import java.nio.file.Path;
  24 import java.nio.file.StandardCopyOption;
  25 import java.util.LinkedHashMap;
  26 import java.util.List;
  27 import java.util.Map;
  28 import java.util.Map.Entry;
  29 import javax.annotation.PostConstruct;
  30 import org.apache.commons.io.IOUtils;
  31 import org.onap.nbi.OnapComponentsUrlPaths;
  32 import org.onap.nbi.exceptions.BackendFunctionalException;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35 import org.springframework.beans.factory.annotation.Autowired;
  36 import org.springframework.beans.factory.annotation.Value;
  37 import org.springframework.http.HttpEntity;
  38 import org.springframework.http.HttpHeaders;
  39 import org.springframework.http.HttpMethod;
  40 import org.springframework.http.HttpStatus;
  41 import org.springframework.http.MediaType;
  42 import org.springframework.http.ResponseEntity;
  43 import org.springframework.stereotype.Service;
  44 import org.springframework.util.MultiValueMap;
  45 import org.springframework.web.client.RestTemplate;
  46 import org.springframework.web.util.UriComponentsBuilder;
  47
  48 /**
  49  * @author user
  50  *
  51  */
  52 @Service
  53 public class SdcClient {
  54
  55     @Autowired
  56     private RestTemplate restTemplate;
  57
  58     @Value("${sdc.host}")
  59     private String sdcHost;
  60
  61     @Value("${sdc.header.ecompInstanceId}")
  62     private String ecompInstanceId;
  63
  64     @Value("${sdc.header.authorization}")
  65     private String sdcHeaderAuthorization;
  66
  67     private static final String HEADER_ECOMP_INSTANCE_ID = "x-ecomp-instanceid";
  68     private static final String HEADER_AUTHORIZATION = "Authorization";
  69
  70     private static final Logger LOGGER = LoggerFactory.getLogger(SdcClient.class);
  71
  72     private String sdcGetUrl;
  73     private String sdcFindUrl;
  74     private String sdcHealthCheck;
  75
  76     @PostConstruct
  77     private void setUpAndLogSDCUrl() {
  78         sdcGetUrl = new StringBuilder().append(sdcHost)
  79                 .append(OnapComponentsUrlPaths.SDC_ROOT_URL + "/{id}" + OnapComponentsUrlPaths.SDC_GET_PATH).toString();
  80         sdcFindUrl = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL).toString();
  81         sdcHealthCheck = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_HEALTH_CHECK).toString();
  82
  83         LOGGER.info("SDC GET url :  " + sdcGetUrl);
  84         LOGGER.info("SDC FIND url :  " + sdcFindUrl);
  85         LOGGER.info("SDC HealthCheck :  " + sdcHealthCheck);
  86
  87     }
  88
  89     public Map callGet(String id) {
  90
  91         String callUrl = sdcGetUrl.replace("{id}", id);
  92         UriComponentsBuilder callURLFormated = UriComponentsBuilder.fromHttpUrl(callUrl);
  93         ResponseEntity<Object> response = callSdc(callURLFormated.build().encode().toUri());
  94         return (LinkedHashMap) response.getBody();
  95
  96     }
  97
  98     public List<LinkedHashMap> callFind(MultiValueMap<String, String> parametersMap) {
  99
 100         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(sdcFindUrl);
 101         if (parametersMap != null) {
 102             Map<String, String> stringStringMap = parametersMap.toSingleValueMap();
 103             for (Entry<String, String> entry : stringStringMap.entrySet()) {
 104                 if (!entry.getKey().equals("fields")) {
 105                     callURI.queryParam(entry.getKey(), entry.getValue());
 106                 }
 107             }
 108         }
 109
 110         ResponseEntity<Object> response = callSdc(callURI.build().encode().toUri());
 111         return (List<LinkedHashMap>) response.getBody();
 112
 113     }
 114
 115     public LinkedHashMap callCheckConnectivity() {
 116
 117         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(sdcHealthCheck);
 118         ResponseEntity<Object> response = callSdc(callURI.build().encode().toUri());
 119         return (LinkedHashMap) response.getBody();
 120
 121     }
 122
 123     public File callGetWithAttachment(String toscaModelUrl) {
 124         StringBuilder urlBuilder = new StringBuilder().append(sdcHost).append(toscaModelUrl);
 125
 126         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(urlBuilder.toString());
 127
 128         File directory = new File("temptoscafile");
 129         if (!directory.exists()) {
 130             directory.mkdir();
 131         }
 132
 133         String fileName = "temptoscafile/" + System.currentTimeMillis() + "tosca.csar";
 134         ResponseEntity<byte[]> response = callSdcWithAttachment(callURI.build().encode().toUri());
 135         File toscaFile = new File(fileName);
 136         try {
 137             FileOutputStream toscaFileStream = new FileOutputStream(toscaFile);
 138             if (response != null) {
 139                 IOUtils.write(response.getBody(), toscaFileStream);
 140             }
 141             toscaFileStream.close();
 142         } catch (IOException e) {
 143             LOGGER.error("cannot get TOSCA File for url " + toscaModelUrl, e);
 144         }
 145         return toscaFile;
 146
 147     }
 148
 149     public Path getServiceToscaModel(String uuid) throws IOException {
 150         StringBuilder urlBuilder = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL)
 151                 .append("/").append(uuid).append(OnapComponentsUrlPaths.SDC_TOSCA_PATH);
 152
 153         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(urlBuilder.toString());
 154
 155         InputStream inputStream = (InputStream) callSdc(callURI.build().encode().toUri()).getBody();
 156
 157         return createTmpFile(inputStream);
 158     }
 159
 160     private Path createTmpFile(InputStream csarInputStream) throws IOException {
 161         Path csarFile = Files.createTempFile("csar", ".zip");
 162         Files.copy(csarInputStream, csarFile, StandardCopyOption.REPLACE_EXISTING);
 163
 164         LOGGER.debug("Tosca file was saved at: {} ", csarFile.toAbsolutePath());
 165
 166         return csarFile;
 167     }
 168
 169     private HttpEntity<String> buildRequestHeader() {
 170         HttpHeaders httpHeaders = new HttpHeaders();
 171         httpHeaders.setContentType(MediaType.APPLICATION_JSON);
 172         httpHeaders.add(HEADER_ECOMP_INSTANCE_ID, ecompInstanceId);
 173         httpHeaders.add(HEADER_AUTHORIZATION, sdcHeaderAuthorization);
 174         return new HttpEntity<>("parameters", httpHeaders);
 175     }
 176
 177     private ResponseEntity<Object> callSdc(URI callURI) {
 178         ResponseEntity<Object> response =
 179                 restTemplate.exchange(callURI, HttpMethod.GET, buildRequestHeader(), Object.class);
 180
 181         if (LOGGER.isDebugEnabled()) {
 182             LOGGER.debug("response body : {} ", response.getBody().toString());
 183         }
 184         LOGGER.info("response status : {}", response.getStatusCodeValue());
 185         loggDebugIfResponseKo(callURI.toString(), response);
 186         return response;
 187     }
 188
 189     private ResponseEntity<byte[]> callSdcWithAttachment(URI callURI) {
 190         try {
 191             ResponseEntity<byte[]> response =
 192                     restTemplate.exchange(callURI, HttpMethod.GET, buildRequestHeader(), byte[].class);
 193             LOGGER.info("response status : " + response.getStatusCodeValue());
 194             if (LOGGER.isWarnEnabled() && !response.getStatusCode().equals(HttpStatus.OK)) {
 195                 LOGGER.warn("HTTP call SDC on {} returns {} ", callURI.toString(), response.getStatusCodeValue());
 196             }
 197             return response;
 198
 199         } catch (BackendFunctionalException e) {
 200             LOGGER.error("HTTP call SDC on {} error : {}", callURI.toString(), e);
 201             return null;
 202         }
 203     }
 204
 205     private void loggDebugIfResponseKo(String callURI, ResponseEntity<Object> response) {
 206         if (LOGGER.isWarnEnabled() && !response.getStatusCode().equals(HttpStatus.OK)) {
 207             LOGGER.warn("HTTP call SDC on {} returns {} , {}", callURI, response.getStatusCodeValue(),
 208                     response.getBody().toString());
 209         }
 210     }
 211 }