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.util.LinkedHashMap;
  20 import java.util.List;
  21 import java.util.Map;
  22 import org.apache.commons.io.IOUtils;
  23 import org.onap.nbi.OnapComponentsUrlPaths;
  24 import org.onap.nbi.exceptions.BackendFunctionalException;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27 import org.springframework.beans.factory.annotation.Autowired;
  28 import org.springframework.beans.factory.annotation.Value;
  29 import org.springframework.http.HttpEntity;
  30 import org.springframework.http.HttpHeaders;
  31 import org.springframework.http.HttpMethod;
  32 import org.springframework.http.HttpStatus;
  33 import org.springframework.http.ResponseEntity;
  34 import org.springframework.stereotype.Service;
  35 import org.springframework.util.MultiValueMap;
  36 import org.springframework.web.client.RestTemplate;
  37 import org.springframework.web.util.UriComponentsBuilder;
  38
  39 /**
  40  * @author user
  41  *
  42  */
  43 @Service
  44 public class SdcClient {
  45
  46     public static final String HTTP_CALL_SDC_ON = "HTTP call SDC on ";
  47     @Autowired
  48     private RestTemplate restTemplate;
  49
  50     @Value("${sdc.host}")
  51     private String sdcHost;
  52
  53     @Value("${sdc.header.ecompInstanceId}")
  54     private String ecompInstanceId;
  55
  56     @Value("${sdc.header.authorization}")
  57     private String sdcHeaderAuthorization;
  58
  59     private static final String HEADER_ECOMP_INSTANCE_ID = "x-ecomp-instanceid";
  60     private static final String HEADER_AUTHORIZATION = "Authorization";
  61
  62     private static final Logger LOGGER = LoggerFactory.getLogger(SdcClient.class);
  63
  64
  65     public LinkedHashMap callGet(String id) {
  66         StringBuilder callURL = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL)
  67                 .append(id).append(OnapComponentsUrlPaths.SDC_GET_PATH);
  68
  69         ResponseEntity<Object> response = callSdc(callURL.toString());
  70         return (LinkedHashMap) response.getBody();
  71
  72     }
  73
  74     public List<LinkedHashMap> callFind(MultiValueMap<String, String> parametersMap) {
  75
  76         UriComponentsBuilder callURL = UriComponentsBuilder.fromHttpUrl(sdcHost + OnapComponentsUrlPaths.SDC_ROOT_URL);
  77         if (parametersMap != null) {
  78             Map<String, String> stringStringMap = parametersMap.toSingleValueMap();
  79             for (String key : stringStringMap.keySet()) {
  80                 if (!key.equals("fields")) {
  81                     callURL.queryParam(key, stringStringMap.get(key));
  82                 }
  83             }
  84         }
  85
  86         ResponseEntity<Object> response = callSdc(callURL.build().encode().toUri().toString());
  87         return (List<LinkedHashMap>) response.getBody();
  88
  89     }
  90
  91
  92     public File callGetWithAttachment(String toscaModelUrl) {
  93         StringBuilder callURL = new StringBuilder().append(sdcHost).append(toscaModelUrl);
  94
  95         String fileName = System.currentTimeMillis() + "tosca.csar";
  96         ResponseEntity<byte[]> response = callSdcWithAttachment(callURL.toString());
  97         File toscaFile = new File(fileName);
  98         try {
  99             FileOutputStream toscaFileStream = new FileOutputStream(toscaFile);
 100             if (response != null) {
 101                 IOUtils.write(response.getBody(), toscaFileStream);
 102             }
 103             toscaFileStream.close();
 104         } catch (IOException e) {
 105             LOGGER.error("cannot get TOSCA File for url " + toscaModelUrl, e);
 106         }
 107         return toscaFile;
 108
 109     }
 110
 111     private HttpEntity<String> buildRequestHeader() {
 112         HttpHeaders httpHeaders = new HttpHeaders();
 113         httpHeaders.add(HEADER_ECOMP_INSTANCE_ID, ecompInstanceId);
 114         httpHeaders.add(HEADER_AUTHORIZATION, sdcHeaderAuthorization);
 115         HttpEntity<String> entity = new HttpEntity<>("parameters", httpHeaders);
 116
 117         return entity;
 118     }
 119
 120
 121     private ResponseEntity<Object> callSdc(String callURL) {
 122         ResponseEntity<Object> response =
 123                 restTemplate.exchange(callURL, HttpMethod.GET, buildRequestHeader(), Object.class);
 124         LOGGER.debug("response body : " + response.getBody().toString());
 125         LOGGER.info("response status : " + response.getStatusCodeValue());
 126         loggDebugIfResponseKo(callURL, response);
 127         return response;
 128     }
 129
 130     private void loggDebugIfResponseKo(String callURL, ResponseEntity<Object> response) {
 131         if (!response.getStatusCode().equals(HttpStatus.OK)) {
 132             LOGGER.warn(HTTP_CALL_SDC_ON + callURL + " returns " + response.getStatusCodeValue() + ", "
 133                     + response.getBody().toString());
 134         }
 135     }
 136
 137     private ResponseEntity<byte[]> callSdcWithAttachment(String callURL) {
 138         try {
 139             ResponseEntity<byte[]> response =
 140                     restTemplate.exchange(callURL.toString(), HttpMethod.GET, buildRequestHeader(), byte[].class);
 141             LOGGER.info("response status : " + response.getStatusCodeValue());
 142             if (!response.getStatusCode().equals(HttpStatus.OK)) {
 143                 LOGGER.warn(HTTP_CALL_SDC_ON + callURL.toString() + " returns " + response.getStatusCodeValue() + ", "
 144                         + response.getBody().toString());
 145             }
 146             return response;
 147
 148         } catch (BackendFunctionalException e) {
 149             LOGGER.error(HTTP_CALL_SDC_ON + callURL.toString() + " error " + e);
 150             return null;
 151         }
 152     }
 153
 154
 155 }
 156
 157