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 package org.onap.nbi.apis.servicecatalog;
  15
  16 import java.io.File;
  17 import java.io.FileOutputStream;
  18 import java.io.IOException;
  19 import java.io.InputStream;
  20 import java.net.URI;
  21 import java.nio.file.Files;
  22 import java.nio.file.Path;
  23 import java.nio.file.StandardCopyOption;
  24 import java.util.LinkedHashMap;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Map.Entry;
  28 import javax.annotation.PostConstruct;
  29 import org.apache.commons.io.IOUtils;
  30 import org.onap.nbi.OnapComponentsUrlPaths;
  31 import org.onap.nbi.exceptions.BackendFunctionalException;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34 import org.springframework.beans.factory.annotation.Autowired;
  35 import org.springframework.beans.factory.annotation.Value;
  36 import org.springframework.http.HttpEntity;
  37 import org.springframework.http.HttpHeaders;
  38 import org.springframework.http.HttpMethod;
  39 import org.springframework.http.HttpStatus;
  40 import org.springframework.http.ResponseEntity;
  41 import org.springframework.stereotype.Service;
  42 import org.springframework.util.MultiValueMap;
  43 import org.springframework.web.client.RestTemplate;
  44 import org.springframework.web.util.UriComponentsBuilder;
  45
  46 /**
  47  * @author user
  48  *
  49  */
  50 @Service
  51 public class SdcClient {
  52
  53     @Autowired
  54     private RestTemplate restTemplate;
  55
  56     @Value("${sdc.host}")
  57     private String sdcHost;
  58
  59     @Value("${sdc.header.ecompInstanceId}")
  60     private String ecompInstanceId;
  61
  62     @Value("${sdc.header.authorization}")
  63     private String sdcHeaderAuthorization;
  64
  65     private static final String HEADER_ECOMP_INSTANCE_ID = "x-ecomp-instanceid";
  66     private static final String HEADER_AUTHORIZATION = "Authorization";
  67
  68     private static final Logger LOGGER = LoggerFactory.getLogger(SdcClient.class);
  69
  70
  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).append(OnapComponentsUrlPaths.SDC_ROOT_URL+"/{id}"+OnapComponentsUrlPaths.SDC_GET_PATH).toString();
  79         sdcFindUrl = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL).toString();
  80         sdcHealthCheck = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_HEALTH_CHECK).toString();
  81
  82
  83
  84         LOGGER.info("SDC GET url :  "+sdcGetUrl);
  85         LOGGER.info("SDC FIND url :  "+ sdcFindUrl);
  86         LOGGER.info("SDC HealthCheck :  "+ sdcHealthCheck);
  87
  88     }
  89
  90
  91     public Map callGet(String id) {
  92
  93         String callUrl = sdcGetUrl.replace("{id}", id);
  94         UriComponentsBuilder callURLFormated = UriComponentsBuilder.fromHttpUrl(callUrl);
  95
  96         ResponseEntity<Object> response = callSdc(callURLFormated.build().encode().toUri());
  97         return (LinkedHashMap) response.getBody();
  98
  99     }
 100
 101     public List<LinkedHashMap> callFind(MultiValueMap<String, String> parametersMap) {
 102
 103         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(sdcFindUrl);
 104         if (parametersMap != null) {
 105             Map<String, String> stringStringMap = parametersMap.toSingleValueMap();
 106             for (Entry<String, String> entry : stringStringMap.entrySet()) {
 107                 if (!entry.getKey().equals("fields")) {
 108                     callURI.queryParam(entry.getKey(), entry.getValue());
 109                 }
 110             }
 111         }
 112
 113         ResponseEntity<Object> response = callSdc(callURI.build().encode().toUri());
 114         return (List<LinkedHashMap>) response.getBody();
 115
 116     }
 117
 118     public LinkedHashMap callCheckConnectivity() {
 119
 120         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(sdcHealthCheck);
 121         ResponseEntity<Object> response = callSdc(callURI.build().encode().toUri());
 122         return (LinkedHashMap) response.getBody();
 123
 124     }
 125
 126
 127
 128     public File callGetWithAttachment(String toscaModelUrl) {
 129         StringBuilder urlBuilder = new StringBuilder().append(sdcHost).append(toscaModelUrl);
 130
 131         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(urlBuilder.toString());
 132
 133
 134         String fileName = System.currentTimeMillis() + "tosca.csar";
 135         ResponseEntity<byte[]> response = callSdcWithAttachment(callURI.build().encode().toUri());
 136         File toscaFile = new File(fileName);
 137         try {
 138             FileOutputStream toscaFileStream = new FileOutputStream(toscaFile);
 139             if (response != null) {
 140                 IOUtils.write(response.getBody(), toscaFileStream);
 141             }
 142             toscaFileStream.close();
 143         } catch (IOException e) {
 144             LOGGER.error("cannot get TOSCA File for url " + toscaModelUrl, e);
 145         }
 146         return toscaFile;
 147
 148     }
 149
 150     public Path getServiceToscaModel(String uuid) throws IOException {
 151         StringBuilder urlBuilder = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL)
 152                 .append("/").append(uuid).append(OnapComponentsUrlPaths.SDC_TOSCA_PATH);
 153
 154         UriComponentsBuilder callURI = UriComponentsBuilder.fromHttpUrl(urlBuilder.toString());
 155
 156         InputStream inputStream = (InputStream) callSdc(callURI.build().encode().toUri()).getBody();
 157
 158         return createTmpFile(inputStream);
 159     }
 160
 161     private Path createTmpFile(InputStream csarInputStream) throws IOException {
 162         Path csarFile = Files.createTempFile("csar", ".zip");
 163         Files.copy(csarInputStream, csarFile, StandardCopyOption.REPLACE_EXISTING);
 164
 165         LOGGER.debug("Tosca file was saved at: {} ", csarFile.toAbsolutePath());
 166
 167         return csarFile;
 168     }
 169
 170     private HttpEntity<String> buildRequestHeader() {
 171         HttpHeaders httpHeaders = new HttpHeaders();
 172         httpHeaders.add(HEADER_ECOMP_INSTANCE_ID, ecompInstanceId);
 173         httpHeaders.add(HEADER_AUTHORIZATION, sdcHeaderAuthorization);
 174         return new HttpEntity<>("parameters", httpHeaders);
 175     }
 176
 177
 178     private ResponseEntity<Object> callSdc(URI callURI) {
 179         ResponseEntity<Object> response =
 180                 restTemplate.exchange(callURI, HttpMethod.GET, buildRequestHeader(), Object.class);
 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
 190     private ResponseEntity<byte[]> callSdcWithAttachment(URI callURI) {
 191         try {
 192             ResponseEntity<byte[]> response =
 193                     restTemplate.exchange(callURI, HttpMethod.GET, buildRequestHeader(), byte[].class);
 194             LOGGER.info("response status : " + response.getStatusCodeValue());
 195             if (LOGGER.isWarnEnabled() && !response.getStatusCode().equals(HttpStatus.OK)) {
 196                 LOGGER.warn("HTTP call SDC on {} returns {} ", callURI.toString() , response.getStatusCodeValue());
 197             }
 198             return response;
 199
 200         } catch (BackendFunctionalException e) {
 201             LOGGER.error("HTTP call SDC on {} error : {}", callURI.toString() , e);
 202             return null;
 203         }
 204     }
 205
 206
 207     private void loggDebugIfResponseKo(String callURI, ResponseEntity<Object> response) {
 208         if (LOGGER.isWarnEnabled() && !response.getStatusCode().equals(HttpStatus.OK)) {
 209             LOGGER.warn("HTTP call SDC on {} returns {} , {}", callURI , response.getStatusCodeValue() , response.getBody().toString());
 210         }
 211     }
 212 }
 213
 214