bpmn/MSOCommonBPMN/src/main/java/org/onap/so/bpmn/common/resource/ResourceRequestBuilder.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2018 Huawei Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.so.bpmn.common.resource;
  22
  23 import java.io.IOException;
  24 import java.lang.reflect.Type;
  25 import java.util.ArrayList;
  26 import java.util.Arrays;
  27 import java.util.HashMap;
  28 import java.util.List;
  29 import java.util.Map;
  30
  31 import javax.ws.rs.core.Response;
  32 import javax.ws.rs.core.UriBuilder;
  33
  34 import org.camunda.bpm.engine.runtime.Execution;
  35 import org.onap.so.bpmn.core.UrnPropertiesReader;
  36 import org.onap.so.bpmn.core.json.JsonUtils;
  37 import org.onap.so.client.HttpClient;
  38 import org.onap.so.client.HttpClientFactory;
  39 import org.onap.so.logger.MsoLogger;
  40 import org.onap.so.utils.TargetEntity;
  41
  42 import com.fasterxml.jackson.core.JsonProcessingException;
  43 import com.fasterxml.jackson.databind.ObjectMapper;
  44 import com.fasterxml.jackson.databind.SerializationFeature;
  45 import com.google.gson.Gson;
  46 import com.google.gson.reflect.TypeToken;
  47
  48 public class ResourceRequestBuilder {
  49
  50     private static String CUSTOMIZATION_UUID = "cuserviceResourcesstomizationUUID";
  51
  52     private static String SERVICE_URL_SERVICE_INSTANCE = "/v2/serviceResources";
  53
  54     private static MsoLogger LOGGER = MsoLogger.getMsoLogger(MsoLogger.Catalog.RA, ResourceRequestBuilder.class);
  55
  56     static JsonUtils jsonUtil = new JsonUtils();
  57
  58         public static List<String> getResourceSequence(String serviceUuid) {
  59
  60         List<String> resourceSequence = new ArrayList();
  61         try {
  62             Map<String, Object> serviceResponse = getServiceInstnace(serviceUuid);
  63
  64             if (serviceResponse.containsKey("serviceResources")) {
  65                 Map<String, Object> serviceResources = (Map<String, Object>) serviceResponse.get("serviceResources");
  66
  67                 if (serviceResources.containsKey("resourceOrder")) {
  68                     String resourceOrder = (String) serviceResources.get("resourceOrder");
  69                     if (resourceOrder!= null) {
  70                         resourceSequence.addAll(Arrays.asList(resourceOrder.split(",")));
  71                     }
  72                 }
  73             }
  74         } catch (Exception e) {
  75             LOGGER.error("not able to retrieve service order.");
  76         }
  77         return resourceSequence;
  78         }
  79
  80      /* build the resource Parameters detail.
  81      * It's a json string for resource instantiant
  82      * {
  83      *     "locationConstraints":[...]
  84      *     "requestInputs":{K,V}
  85      * }
  86      * <br>
  87      *
  88      * @param execution Execution context
  89      * @param serviceUuid The service template uuid
  90      * @param resourceCustomizationUuid The resource customization uuid
  91      * @param serviceParameters the service parameters passed from the API
  92      * @return the resource instantiate parameters
  93      * @since ONAP Beijing Release
  94      */
  95     @SuppressWarnings("unchecked")
  96     public static String buildResourceRequestParameters(Execution execution, String serviceUuid, String resourceCustomizationUuid, String serviceParameters) {
  97         List<String> resourceList = jsonUtil.StringArrayToList(execution, (String)JsonUtils.getJsonValue(serviceParameters, "resources"));
  98         //Get the right location str for resource. default is an empty array.
  99         String locationConstraints ="[]";
 100         String resourceInputsFromUui = "";
 101         for(String resource: resourceList){
 102             String resCusUuid = (String)JsonUtils.getJsonValue(resource, "resourceCustomizationUuid");
 103             if(resourceCustomizationUuid.equals(resCusUuid)){
 104                 String resourceParameters = JsonUtils.getJsonValue(resource, "parameters");
 105                 locationConstraints = JsonUtils.getJsonValue(resourceParameters, "locationConstraints");
 106                 resourceInputsFromUui = JsonUtils.getJsonValue(resourceParameters, "requestInputs");
 107             }
 108         }
 109         Map<String, Object> serviceInput = null;
 110         if (JsonUtils.getJsonValue(serviceParameters, "requestInputs") != null) {
 111             serviceInput = getJsonObject((String)JsonUtils.getJsonValue(serviceParameters, "requestInputs"), Map.class);
 112         }
 113
 114         Map<String, Object> resourceInputsFromUuiMap = getJsonObject(resourceInputsFromUui, Map.class);
 115
 116         if (serviceInput == null) {
 117             serviceInput = new HashMap();
 118         }
 119
 120         if (resourceInputsFromUuiMap == null) {
 121             resourceInputsFromUuiMap = new HashMap();
 122         }
 123
 124         Map<String, Object> resourceInputsFromServiceDeclaredLevel = buildResouceRequest(serviceUuid, resourceCustomizationUuid, serviceInput);
 125         resourceInputsFromUuiMap.putAll(resourceInputsFromServiceDeclaredLevel);
 126         String resourceInputsStr = getJsonString(resourceInputsFromUuiMap);
 127         String result = "{\n"
 128                 + "\"locationConstraints\":" + locationConstraints +",\n"
 129                 + "\"requestInputs\":" + resourceInputsStr +"\n"
 130                 +"}";
 131         return result;
 132     }
 133
 134     @SuppressWarnings("unchecked")
 135     public static Map<String, Object> buildResouceRequest(String serviceUuid, String resourceCustomizationUuid, Map<String, Object> serviceInputs) {
 136         try {
 137             Map<String, Object> serviceInstnace = getServiceInstnace(serviceUuid);
 138
 139             // find match of customization uuid in vnf
 140             Map<String, Map<String, Object>> serviceResources = (Map<String, Map<String, Object>>) serviceInstnace.get("serviceResources");
 141
 142             List<Map<String, Object>> serviceVnfCust = (List<Map<String, Object>>) serviceResources.get("serviceVnfs");
 143             String resourceInputStr = getResourceInputStr(serviceVnfCust, resourceCustomizationUuid);
 144
 145             // find match in network resource
 146             if (resourceInputStr == null) {
 147                 List<Map<String, Object>> serviceNetworkCust = (List<Map<String, Object>>) serviceResources.get("serviceNetworks");
 148                 resourceInputStr = getResourceInputStr(serviceNetworkCust, resourceCustomizationUuid);
 149
 150                 // find match in AR resource
 151                 if (resourceInputStr == null) {
 152                     List<Map<String, Object>> serviceArCust = (List<Map<String, Object>>) serviceResources.get("serviceAllottedResources");
 153                     resourceInputStr = getResourceInputStr(serviceArCust, resourceCustomizationUuid);
 154                 }
 155             }
 156
 157            if (resourceInputStr != null || !resourceInputStr.equals("")) {
 158                 return getResourceInput(resourceInputStr, serviceInputs);
 159            }
 160
 161         } catch (Exception e) {
 162             LOGGER.error("not able to retrieve service instance");
 163         }
 164         return new HashMap();
 165     }
 166
 167     private static String getResourceInputStr(List<Map<String, Object>> resources, String resCustomizationUuid) {
 168
 169         for (Map<String, Object> resource : resources) {
 170             Map<String, String> modelInfo = (Map<String, String>) resource.get("modelInfo");
 171
 172             if (modelInfo.get("modelCustomizationUuid").equalsIgnoreCase(resCustomizationUuid)) {
 173                 return (String) resource.get("resourceInput");
 174             }
 175         }
 176         return null;
 177     }
 178
 179     // this method combines resource input with service input
 180     private static Map<String, Object> getResourceInput(String resourceInputStr, Map<String, Object> serviceInputs) {
 181         Gson gson = new Gson();
 182         Type type = new TypeToken<Map<String, String>>(){}.getType();
 183         Map<String, Object> resourceInput = gson.fromJson(resourceInputStr, type);
 184
 185         // replace value if key is available in service input
 186         for (String key: resourceInput.keySet()) {
 187             String value = (String) resourceInput.get(key);
 188
 189             if (value.contains("|")) {
 190                 // node it type of getinput
 191                 String[] split = value.split("\\|");
 192                 String tmpKey = split[0];
 193                 if (serviceInputs.containsKey(tmpKey)) {
 194                     value = (String) serviceInputs.get(tmpKey);
 195                 } else {
 196                     value = split[1];
 197                 }
 198             }
 199             resourceInput.put(key,value);
 200         }
 201         return resourceInput;
 202     }
 203
 204     public static Map<String, Object> getServiceInstnace(String uuid) throws Exception {
 205         String catalogEndPoint = UrnPropertiesReader.getVariable("mso.catalog.db.endpoint");
 206
 207         HttpClient client = new HttpClientFactory().newJsonClient(
 208                     UriBuilder.fromUri(catalogEndPoint).path(SERVICE_URL_SERVICE_INSTANCE).queryParam("serviceModelUuid", uuid).build().toURL(),
 209                 TargetEntity.CATALOG_DB);
 210
 211         client.addAdditionalHeader("Accept", "application/json");
 212         client.addAdditionalHeader("Authorization", UrnPropertiesReader.getVariable("mso.db.auth"));
 213
 214         Response apiResponse = client.get();
 215
 216         String value = apiResponse.readEntity(String.class);
 217
 218         ObjectMapper objectMapper = new ObjectMapper();
 219         HashMap<String, Object> map = objectMapper.readValue(value, HashMap.class);
 220         return map;
 221     }
 222
 223     public static <T> T getJsonObject(String jsonstr, Class<T> type) {
 224         ObjectMapper mapper = new ObjectMapper();
 225         mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
 226         try {
 227             return mapper.readValue(jsonstr, type);
 228         } catch(IOException e) {
 229             LOGGER.error("fail to unMarshal json" + e.getMessage ());
 230         }
 231         return null;
 232     }
 233
 234     public static String getJsonString(Object srcObj)  {
 235         ObjectMapper mapper = new ObjectMapper();
 236         mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, false);
 237         String jsonStr = null;
 238         try {
 239             jsonStr = mapper.writeValueAsString(srcObj);
 240         } catch(JsonProcessingException e) {
 241                 LOGGER.error("SdcToscaParserException", e);
 242         }
 243         return jsonStr;
 244     }
 245 }