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");
   5  *     you may not use this file except in compliance with the License.
   6  *     You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *     Unless required by applicable law or agreed to in writing, software
  11  *     distributed under the License is distributed on an "AS IS" BASIS,
  12  *     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *     See the License for the specific language governing permissions and
  14  *     limitations under the License.
  15  */
  16 package org.onap.nbi.apis.servicecatalog;
  17
  18 import java.io.File;
  19 import java.io.FileOutputStream;
  20 import java.io.IOException;
  21 import java.util.LinkedHashMap;
  22 import java.util.List;
  23 import java.util.Map;
  24 import org.apache.commons.io.IOUtils;
  25 import org.onap.nbi.OnapComponentsUrlPaths;
  26 import org.onap.nbi.exceptions.BackendFunctionalException;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29 import org.springframework.beans.factory.annotation.Autowired;
  30 import org.springframework.beans.factory.annotation.Value;
  31 import org.springframework.http.HttpEntity;
  32 import org.springframework.http.HttpHeaders;
  33 import org.springframework.http.HttpMethod;
  34 import org.springframework.http.HttpStatus;
  35 import org.springframework.http.ResponseEntity;
  36 import org.springframework.stereotype.Service;
  37 import org.springframework.util.MultiValueMap;
  38 import org.springframework.web.client.RestTemplate;
  39 import org.springframework.web.util.UriComponentsBuilder;
  40
  41 /**
  42  * @author user
  43  *
  44  */
  45 @Service
  46 public class SdcClient {
  47
  48     public static final String HTTP_CALL_SDC_ON = "HTTP call SDC on ";
  49     @Autowired
  50     private RestTemplate restTemplate;
  51
  52     @Value("${sdc.host}")
  53     private String sdcHost;
  54
  55     @Value("${sdc.header.ecompInstanceId}")
  56     private String ecompInstanceId;
  57
  58     @Value("${sdc.header.authorization}")
  59     private String sdcHeaderAuthorization;
  60
  61     private static final String HEADER_ECOMP_INSTANCE_ID = "x-ecomp-instanceid";
  62     private static final String HEADER_AUTHORIZATION = "Authorization";
  63
  64     private static final Logger LOGGER = LoggerFactory.getLogger(SdcClient.class);
  65
  66
  67     public LinkedHashMap callGet(String id) {
  68         StringBuilder callURL = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL)
  69                 .append(id).append(OnapComponentsUrlPaths.SDC_GET_PATH);
  70
  71         ResponseEntity<Object> response = callSdc(callURL.toString());
  72         return (LinkedHashMap) response.getBody();
  73
  74     }
  75
  76     public List<LinkedHashMap> callFind(MultiValueMap<String, String> parametersMap) {
  77
  78         UriComponentsBuilder callURL = UriComponentsBuilder.fromHttpUrl(sdcHost + OnapComponentsUrlPaths.SDC_ROOT_URL);
  79         if (parametersMap != null) {
  80             Map<String, String> stringStringMap = parametersMap.toSingleValueMap();
  81             for (String key : stringStringMap.keySet()) {
  82                 if (!key.equals("fields")) {
  83                     callURL.queryParam(key, stringStringMap.get(key));
  84                 }
  85             }
  86         }
  87
  88         ResponseEntity<Object> response = callSdc(callURL.build().encode().toUri().toString());
  89         return (List<LinkedHashMap>) response.getBody();
  90
  91     }
  92
  93
  94     public File callGetWithAttachment(String toscaModelUrl) {
  95         StringBuilder callURL = new StringBuilder().append(sdcHost).append(toscaModelUrl);
  96
  97         String fileName = System.currentTimeMillis() + "tosca.csar";
  98         ResponseEntity<byte[]> response = callSdcWithAttachment(callURL.toString());
  99         File toscaFile = new File(fileName);
 100         try {
 101             FileOutputStream toscaFileStream = new FileOutputStream(toscaFile);
 102             if (response != null) {
 103                 IOUtils.write(response.getBody(), toscaFileStream);
 104             }
 105             toscaFileStream.close();
 106         } catch (IOException e) {
 107             LOGGER.error("cannot get TOSCA File for url " + toscaModelUrl);
 108         }
 109         return toscaFile;
 110
 111     }
 112
 113     private HttpEntity<String> buildRequestHeader() {
 114         HttpHeaders httpHeaders = new HttpHeaders();
 115         httpHeaders.add(HEADER_ECOMP_INSTANCE_ID, ecompInstanceId);
 116         httpHeaders.add(HEADER_AUTHORIZATION, sdcHeaderAuthorization);
 117         HttpEntity<String> entity = new HttpEntity<>("parameters", httpHeaders);
 118
 119         return entity;
 120     }
 121
 122
 123     private ResponseEntity<Object> callSdc(String callURL) {
 124         ResponseEntity<Object> response =
 125                 restTemplate.exchange(callURL, HttpMethod.GET, buildRequestHeader(), Object.class);
 126         LOGGER.debug("response body : " + response.getBody().toString());
 127         LOGGER.info("response status : " + response.getStatusCodeValue());
 128         loggDebugIfResponseKo(callURL, response);
 129         return response;
 130     }
 131
 132     private void loggDebugIfResponseKo(String callURL, ResponseEntity<Object> response) {
 133         if (!response.getStatusCode().equals(HttpStatus.OK)) {
 134             LOGGER.warn(HTTP_CALL_SDC_ON + callURL + " returns " + response.getStatusCodeValue() + ", "
 135                     + response.getBody().toString());
 136         }
 137     }
 138
 139     private ResponseEntity<byte[]> callSdcWithAttachment(String callURL) {
 140         try {
 141             ResponseEntity<byte[]> response =
 142                     restTemplate.exchange(callURL.toString(), HttpMethod.GET, buildRequestHeader(), byte[].class);
 143             LOGGER.info("response status : " + response.getStatusCodeValue());
 144             if (!response.getStatusCode().equals(HttpStatus.OK)) {
 145                 LOGGER.warn(HTTP_CALL_SDC_ON + callURL.toString() + " returns " + response.getStatusCodeValue() + ", "
 146                         + response.getBody().toString());
 147             }
 148             return response;
 149
 150         } catch (BackendFunctionalException e) {
 151             LOGGER.error(HTTP_CALL_SDC_ON + callURL.toString() + " error " + e);
 152             return null;
 153         }
 154     }
 155
 156
 157 }
 158
 159