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

   1 /**
   2  *
   3  *     Copyright (c) 2017 Orange.  All rights reserved.
   4  *
   5  *     Licensed under the Apache License, Version 2.0 (the "License");
   6  *     you may not use this file except in compliance with the License.
   7  *     You may obtain a copy of the License at
   8  *
   9  *         http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *     Unless required by applicable law or agreed to in writing, software
  12  *     distributed under the License is distributed on an "AS IS" BASIS,
  13  *     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *     See the License for the specific language governing permissions and
  15  *     limitations under the License.
  16  */
  17 package org.onap.nbi.apis.servicecatalog;
  18
  19 import java.io.File;
  20 import java.io.FileOutputStream;
  21 import java.io.IOException;
  22 import java.util.LinkedHashMap;
  23 import java.util.List;
  24 import java.util.Map;
  25 import org.apache.commons.io.IOUtils;
  26 import org.onap.nbi.OnapComponentsUrlPaths;
  27 import org.onap.nbi.exceptions.BackendFunctionalException;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30 import org.springframework.beans.factory.annotation.Autowired;
  31 import org.springframework.beans.factory.annotation.Value;
  32 import org.springframework.http.HttpEntity;
  33 import org.springframework.http.HttpHeaders;
  34 import org.springframework.http.HttpMethod;
  35 import org.springframework.http.HttpStatus;
  36 import org.springframework.http.ResponseEntity;
  37 import org.springframework.stereotype.Service;
  38 import org.springframework.util.MultiValueMap;
  39 import org.springframework.web.client.RestTemplate;
  40 import org.springframework.web.util.UriComponentsBuilder;
  41
  42 /**
  43  * @author user
  44  *
  45  */
  46 @Service
  47 public class SdcClient {
  48
  49     public static final String HTTP_CALL_SDC_ON = "HTTP call SDC on ";
  50     @Autowired
  51     private RestTemplate restTemplate;
  52
  53     @Value("${sdc.host}")
  54     private String sdcHost;
  55
  56     @Value("${sdc.header.ecompInstanceId}")
  57     private String ecompInstanceId;
  58
  59     @Value("${sdc.header.authorization}")
  60     private String sdcHeaderAuthorization;
  61
  62     private static final String HEADER_ECOMP_INSTANCE_ID = "x-ecomp-instanceid";
  63     private static final String HEADER_AUTHORIZATION = "Authorization";
  64
  65     private static final Logger LOGGER = LoggerFactory.getLogger(SdcClient.class);
  66
  67
  68     public LinkedHashMap callGet(String id) {
  69         StringBuilder callURL = new StringBuilder().append(sdcHost).append(OnapComponentsUrlPaths.SDC_ROOT_URL)
  70                 .append(id).append(OnapComponentsUrlPaths.SDC_GET_PATH);
  71
  72         ResponseEntity<Object> response = callSdc(callURL.toString());
  73         return (LinkedHashMap) response.getBody();
  74
  75     }
  76
  77     public List<LinkedHashMap> callFind(MultiValueMap<String, String> parametersMap) {
  78
  79         UriComponentsBuilder callURL = UriComponentsBuilder.fromHttpUrl(sdcHost + OnapComponentsUrlPaths.SDC_ROOT_URL);
  80         if (parametersMap != null) {
  81             Map<String, String> stringStringMap = parametersMap.toSingleValueMap();
  82             for (String key : stringStringMap.keySet()) {
  83                 if (!key.equals("fields")) {
  84                     callURL.queryParam(key, stringStringMap.get(key));
  85                 }
  86             }
  87         }
  88
  89         ResponseEntity<Object> response = callSdc(callURL.build().encode().toUri().toString());
  90         return (List<LinkedHashMap>) response.getBody();
  91
  92     }
  93
  94
  95     public File callGetWithAttachment(String toscaModelUrl) {
  96         StringBuilder callURL = new StringBuilder().append(sdcHost).append(toscaModelUrl);
  97
  98         String fileName = System.currentTimeMillis() + "tosca.csar";
  99         ResponseEntity<byte[]> response = callSdcWithAttachment(callURL.toString());
 100         File toscaFile = new File(fileName);
 101         try {
 102             FileOutputStream toscaFileStream = new FileOutputStream(toscaFile);
 103             if (response != null) {
 104                 IOUtils.write(response.getBody(), toscaFileStream);
 105             }
 106             toscaFileStream.close();
 107         } catch (IOException e) {
 108             LOGGER.error("cannot get TOSCA File for url " + toscaModelUrl);
 109         }
 110         return toscaFile;
 111
 112     }
 113
 114     private HttpEntity<String> buildRequestHeader() {
 115         HttpHeaders httpHeaders = new HttpHeaders();
 116         httpHeaders.add(HEADER_ECOMP_INSTANCE_ID, ecompInstanceId);
 117         httpHeaders.add(HEADER_AUTHORIZATION, sdcHeaderAuthorization);
 118         HttpEntity<String> entity = new HttpEntity<>("parameters", httpHeaders);
 119
 120         return entity;
 121     }
 122
 123
 124     private ResponseEntity<Object> callSdc(String callURL) {
 125         ResponseEntity<Object> response =
 126                 restTemplate.exchange(callURL, HttpMethod.GET, buildRequestHeader(), Object.class);
 127         LOGGER.debug("response body : " + response.getBody().toString());
 128         LOGGER.info("response status : " + response.getStatusCodeValue());
 129         loggDebugIfResponseKo(callURL, response);
 130         return response;
 131     }
 132
 133     private void loggDebugIfResponseKo(String callURL, ResponseEntity<Object> response) {
 134         if (!response.getStatusCode().equals(HttpStatus.OK)) {
 135             LOGGER.warn(HTTP_CALL_SDC_ON + callURL + " returns " + response.getStatusCodeValue() + ", "
 136                     + response.getBody().toString());
 137         }
 138     }
 139
 140     private ResponseEntity<byte[]> callSdcWithAttachment(String callURL) {
 141         try {
 142             ResponseEntity<byte[]> response =
 143                     restTemplate.exchange(callURL.toString(), HttpMethod.GET, buildRequestHeader(), byte[].class);
 144             LOGGER.info("response status : " + response.getStatusCodeValue());
 145             if (!response.getStatusCode().equals(HttpStatus.OK)) {
 146                 LOGGER.warn(HTTP_CALL_SDC_ON + callURL.toString() + " returns " + response.getStatusCodeValue() + ", "
 147                         + response.getBody().toString());
 148             }
 149             return response;
 150
 151         } catch (BackendFunctionalException e) {
 152             LOGGER.error(HTTP_CALL_SDC_ON + callURL.toString() + " error " + e);
 153             return null;
 154         }
 155     }
 156
 157
 158 }
 159
 160