nemo-impl/src/main/java/org/opendaylight/nemo/user/advancedquery/AdvancedQuery.java

   1 /*\r
   2  * Copyright (c) 2015 Huawei, Inc. and others. All rights reserved.\r
   3  *\r
   4  * This program and the accompanying materials are made available under the\r
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html\r
   7  */\r
   8 package org.opendaylight.nemo.user.advancedquery;\r
   9 \r
  10 import java.util.List;\r
  11 \r
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;\r
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;\r
  14 import org.opendaylight.nemo.user.tenantmanager.AAA;\r
  15 import org.opendaylight.nemo.user.tenantmanager.TenantManage;\r
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.common.rev151010.UserId;\r
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.AdvancedNemoQueryInput;\r
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.Users;\r
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.advanced.nemo.query.input.QueryCondition;\r
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.Objects;\r
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.Operations;\r
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.Results;\r
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.Connection;\r
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.Flow;\r
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.objects.Node;\r
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.user.intent.operations.Operation;\r
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.users.User;\r
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.intent.rev151010.users.UserKey;\r
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.object.rev151010.flow.instance.MatchItem;\r
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.object.rev151010.flow.instance.Property;\r
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.object.rev151010.property.instance.property.values.IntValue;\r
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;\r
  33 import org.slf4j.Logger;\r
  34 import org.slf4j.LoggerFactory;\r
  35 \r
  36 import com.google.common.base.Optional;\r
  37 import com.google.common.util.concurrent.FutureCallback;\r
  38 import com.google.common.util.concurrent.Futures;\r
  39 import com.google.common.util.concurrent.ListenableFuture;\r
  40 \r
  41 /**\r
  42  * Created by z00293636 on 2015/8/29.\r
  43  */\r
  44 public class AdvancedQuery\r
  45 {\r
  46     private DataBroker dataBroker;\r
  47     private TenantManage tenantManage;\r
  48     private QueryDefinitionCheck queryDefinitionCheck;\r
  49     private Objects objects;\r
  50     private Operations operations;\r
  51     private List<Results> resultsList;\r
  52     private static final Logger LOG = LoggerFactory.getLogger(QueryDefinitionCheck.class);\r
  53 \r
  54     public AdvancedQuery(DataBroker dataBroker, TenantManage tenantManage)\r
  55     {\r
  56         this.dataBroker = dataBroker;\r
  57         this.tenantManage = tenantManage;\r
  58         queryDefinitionCheck = new QueryDefinitionCheck(dataBroker);\r
  59         objects = null;\r
  60         operations = null;\r
  61         resultsList = null;\r
  62     }\r
  63 \r
  64     public String advancedQuery(AAA aaa, AdvancedNemoQueryInput input)\r
  65     {\r
  66         String errorInfo = null;\r
  67         List<QueryCondition> queryConditionList = null;\r
  68 \r
  69         errorInfo = aaa.checkUser(input);\r
  70 \r
  71         if (errorInfo != null)\r
  72         {\r
  73             return errorInfo;\r
  74         }\r
  75         else\r
  76         {\r
  77             if (input.getQueryCondition() != null)\r
  78             {\r
  79                 queryConditionList = input.getQueryCondition();\r
  80                 for (QueryCondition queryCondition : queryConditionList)\r
  81                 {\r
  82                     errorInfo = queryDefinitionCheck.CheckQueryDefinition(queryCondition);\r
  83                     if (errorInfo != null)\r
  84                     {\r
  85                         break;\r
  86                     }\r
  87                 }\r
  88             }\r
  89         }\r
  90         return errorInfo;\r
  91     }\r
  92 \r
  93     public String getAdvancedQueryReuslt(AdvancedNemoQueryInput advancedNemoQueryInput)\r
  94     {\r
  95         UserId userId = advancedNemoQueryInput.getUserId();\r
  96         List<QueryCondition> queryConditionList = advancedNemoQueryInput.getQueryCondition();\r
  97         String queryResult = null;\r
  98 \r
  99         for (QueryCondition queryCondition : queryConditionList)\r
 100         {\r
 101             if (queryCondition.getQueryIntentType() != null)\r
 102             {\r
 103                 if (queryCondition.getQueryIntentType().getIntValue() == 0)\r
 104                 {\r
 105                     queryResult += nodeInstanceQuery(userId, queryCondition);\r
 106                 }\r
 107                 if (queryCondition.getQueryIntentType().getIntValue() == 1)\r
 108                 {\r
 109                     queryResult += connectionInstanceQuery(userId,queryCondition);\r
 110                 }\r
 111                 if (queryCondition.getQueryIntentType().getIntValue() == 2)\r
 112                 {\r
 113                     queryResult += flowInstanceQuery(userId,queryCondition);\r
 114                 }\r
 115                 if (queryCondition.getQueryIntentType().getIntValue() == 3)\r
 116                 {\r
 117                     queryResult += operationsInstanceQuery(userId,queryCondition);\r
 118                 }\r
 119             }\r
 120         }\r
 121 \r
 122         return queryResult;\r
 123     }\r
 124 \r
 125     private String nodeInstanceQuery(UserId userId, QueryCondition queryCondition)\r
 126     {\r
 127         String queryResult = null;\r
 128 \r
 129         fetchObjectsInstance(userId);\r
 130 \r
 131         if (objects != null)\r
 132         {\r
 133             if (objects.getNode() != null)\r
 134             {\r
 135                 List<Node> nodeList = objects.getNode();\r
 136 \r
 137                 for (Node node : nodeList)\r
 138                 {\r
 139                     if (node.getProperty() != null)\r
 140                     {\r
 141                         for(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.object.rev151010.node.instance.Property property : node.getProperty())\r
 142                         {\r
 143                             if (property.getPropertyName().equals(queryCondition.getQueryConditionName()))\r
 144                             {\r
 145                                 int operator = queryCondition.getQueryConditionMatchPattern().getIntValue();\r
 146                                 List<IntValue> values =property.getPropertyValues().getIntValue();\r
 147                                 if (operator == 0 && (property.getPropertyValues().getIntValue() != null))\r
 148                                 {\r
 149                                     for(IntValue value:values)\r
 150                                     {\r
 151                                         if (value.getValue()<queryCondition.getQueryConditionTargetValue().getIntValue())\r
 152                                         {\r
 153                                             queryResult += node.getNodeId().toString()+node.getNodeName().toString()+node.getNodeType().toString()+node.getSubNode().toString()+node.getProperty().toString();\r
 154                                         }\r
 155                                     }\r
 156                                 }\r
 157                                 if (operator == 1 && (property.getPropertyValues().getIntValue() != null))\r
 158                                 {\r
 159                                     for(IntValue value:values)\r
 160                                     {\r
 161                                         if (value.getValue()<=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 162                                         {\r
 163                                             queryResult += node.getNodeId().toString()+node.getNodeName().toString()+node.getNodeType().toString()+node.getSubNode().toString()+node.getProperty().toString();\r
 164                                         }\r
 165                                     }\r
 166                                 }\r
 167                                 if (operator == 2 && (property.getPropertyValues().getIntValue() != null))\r
 168                                 {\r
 169                                     for(IntValue value:values)\r
 170                                     {\r
 171                                         if (value.getValue()==queryCondition.getQueryConditionTargetValue().getIntValue())\r
 172                                         {\r
 173                                             queryResult += node.getNodeId().toString()+node.getNodeName().toString()+node.getNodeType().toString()+node.getSubNode().toString()+node.getProperty().toString();\r
 174                                         }\r
 175                                     }\r
 176                                 }\r
 177                                 if (operator == 3 && (property.getPropertyValues().getIntValue() != null))\r
 178                                 {\r
 179                                     for(IntValue value:values)\r
 180                                     {\r
 181                                         if (value.getValue()!=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 182                                         {\r
 183                                             queryResult += node.getNodeId().toString()+node.getNodeName().toString()+node.getNodeType().toString()+node.getSubNode().toString()+node.getProperty().toString();\r
 184                                         }\r
 185                                     }\r
 186                                 }\r
 187                                 if (operator == 4 && (property.getPropertyValues().getIntValue() != null))\r
 188                                 {\r
 189                                     for(IntValue value:values)\r
 190                                     {\r
 191                                         if (value.getValue()>queryCondition.getQueryConditionTargetValue().getIntValue())\r
 192                                         {\r
 193                                             queryResult += node.getNodeId().toString()+node.getNodeName().toString()+node.getNodeType().toString()+node.getSubNode().toString()+node.getProperty().toString();\r
 194                                         }\r
 195                                     }\r
 196                                 }\r
 197                                 if (operator == 5 && (property.getPropertyValues().getIntValue() != null))\r
 198                                 {\r
 199                                     for(IntValue value:values)\r
 200                                     {\r
 201                                         if (value.getValue()>=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 202                                         {\r
 203                                             queryResult += node.getNodeId().toString()+node.getNodeName().toString()+node.getNodeType().toString()+node.getSubNode().toString()+node.getProperty().toString();\r
 204                                         }\r
 205                                     }\r
 206                                 }\r
 207                                 if (operator == 6 && (property.getPropertyValues().getIntValue() != null))\r
 208                                 {\r
 209                                     //between todo\r
 210                                 }\r
 211                             }\r
 212                         }\r
 213                     }\r
 214 \r
 215             }\r
 216         }\r
 217 \r
 218         }\r
 219 \r
 220         return queryResult;\r
 221     }\r
 222 \r
 223     private String connectionInstanceQuery(UserId userId, QueryCondition queryCondition)\r
 224     {\r
 225         String queryResult = null;\r
 226 \r
 227         fetchObjectsInstance(userId);\r
 228         if (objects != null)\r
 229         {\r
 230             if (objects.getConnection() != null)\r
 231             {\r
 232                 List<Connection> connectionList = objects.getConnection();\r
 233 \r
 234                 for (Connection connection : connectionList)\r
 235                 {\r
 236                     if (connection.getProperty() != null)\r
 237                     {\r
 238                         for (org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.nemo.object.rev151010.connection.instance.Property property : connection.getProperty())\r
 239                         {\r
 240                             if (property.getPropertyName().equals(queryCondition.getQueryConditionName()))\r
 241                             {\r
 242                                 int operator = queryCondition.getQueryConditionMatchPattern().getIntValue();\r
 243                                 List<IntValue> values =property.getPropertyValues().getIntValue();\r
 244                                 if (operator == 0 && (property.getPropertyValues().getIntValue() != null))\r
 245                                 {\r
 246                                     for(IntValue value:values)\r
 247                                     {\r
 248                                         if (value.getValue()<queryCondition.getQueryConditionTargetValue().getIntValue())\r
 249                                         {\r
 250                                             queryResult += connection.getConnectionId().toString()+ connection.getConnectionName().toString()+connection.getConnectionType().toString()+connection.getEndNode().toString()+connection.getProperty().toString();\r
 251                                         }\r
 252                                     }\r
 253                                 }\r
 254                                 if (operator == 1 && (property.getPropertyValues().getIntValue() != null))\r
 255                                 {\r
 256                                     for(IntValue value:values)\r
 257                                     {\r
 258                                         if (value.getValue()<=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 259                                         {\r
 260                                             queryResult += connection.getConnectionId().toString()+ connection.getConnectionName().toString()+connection.getConnectionType().toString()+connection.getEndNode().toString()+connection.getProperty().toString();\r
 261                                         }\r
 262                                     }\r
 263                                 }\r
 264                                 if (operator == 2 && (property.getPropertyValues().getIntValue() != null))\r
 265                                 {\r
 266                                     for(IntValue value:values)\r
 267                                     {\r
 268                                         if (value.getValue()==queryCondition.getQueryConditionTargetValue().getIntValue())\r
 269                                         {\r
 270                                             queryResult += connection.getConnectionId().toString()+ connection.getConnectionName().toString()+connection.getConnectionType().toString()+connection.getEndNode().toString()+connection.getProperty().toString();\r
 271                                         }\r
 272                                     }\r
 273                                 }\r
 274                                 if (operator == 3 && (property.getPropertyValues().getIntValue() != null))\r
 275                                 {\r
 276                                     for(IntValue value:values)\r
 277                                     {\r
 278                                         if (value.getValue()!=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 279                                         {\r
 280                                             queryResult += connection.getConnectionId().toString()+ connection.getConnectionName().toString()+connection.getConnectionType().toString()+connection.getEndNode().toString()+connection.getProperty().toString();\r
 281                                         }\r
 282                                     }\r
 283                                 }\r
 284                                 if (operator == 4 && (property.getPropertyValues().getIntValue() != null))\r
 285                                 {\r
 286                                     for(IntValue value:values)\r
 287                                     {\r
 288                                         if (value.getValue()>queryCondition.getQueryConditionTargetValue().getIntValue())\r
 289                                         {\r
 290                                             queryResult += connection.getConnectionId().toString()+ connection.getConnectionName().toString()+connection.getConnectionType().toString()+connection.getEndNode().toString()+connection.getProperty().toString();\r
 291                                         }\r
 292                                     }\r
 293                                 }\r
 294                                 if (operator == 5 && (property.getPropertyValues().getIntValue() != null))\r
 295                                 {\r
 296                                     for(IntValue value:values)\r
 297                                     {\r
 298                                         if (value.getValue()>=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 299                                         {\r
 300                                             queryResult += connection.getConnectionId().toString()+ connection.getConnectionName().toString()+connection.getConnectionType().toString()+connection.getEndNode().toString()+connection.getProperty().toString();\r
 301                                         }\r
 302                                     }\r
 303                                 }\r
 304                                 if (operator == 6 && (property.getPropertyValues().getIntValue() != null))\r
 305                                 {\r
 306                                     //between todo\r
 307                                 }\r
 308                             }\r
 309                         }\r
 310                     }\r
 311 \r
 312                 }\r
 313             }\r
 314         }\r
 315 \r
 316         return queryResult;\r
 317     }\r
 318 \r
 319     private String flowInstanceQuery(UserId userId, QueryCondition queryCondition)\r
 320     {\r
 321         String queryResult = null;\r
 322 \r
 323         fetchObjectsInstance(userId);\r
 324         if (objects != null)\r
 325         {\r
 326             if (objects.getFlow() != null)\r
 327             {\r
 328                 List<Flow> flowList = objects.getFlow();\r
 329 \r
 330                 for (Flow flow: flowList)\r
 331                 {\r
 332                     if (flow.getProperty() != null)\r
 333                     {\r
 334                         for (Property property : flow.getProperty())\r
 335                         {\r
 336                             if (property.getPropertyName().equals(queryCondition.getQueryConditionName()))\r
 337                             {\r
 338                                 int operator = queryCondition.getQueryConditionMatchPattern().getIntValue();\r
 339                                 List<IntValue> values = property.getPropertyValues().getIntValue();\r
 340                                 if (operator == 0 && (property.getPropertyValues().getIntValue() != null))\r
 341                                 {\r
 342                                     for(IntValue value:values)\r
 343                                     {\r
 344                                         if (value.getValue()<queryCondition.getQueryConditionTargetValue().getIntValue())\r
 345                                         {\r
 346                                             queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 347                                         }\r
 348                                     }\r
 349                                 }\r
 350                                 if (operator == 1 && (property.getPropertyValues().getIntValue() != null))\r
 351                                 {\r
 352                                     for(IntValue value:values)\r
 353                                     {\r
 354                                         if (value.getValue()<=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 355                                         {\r
 356                                             queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 357                                         }\r
 358                                     }\r
 359                                 }\r
 360                                 if (operator == 2 && (property.getPropertyValues().getIntValue() != null))\r
 361                                 {\r
 362                                     for(IntValue value:values)\r
 363                                     {\r
 364                                         if (value.getValue()==queryCondition.getQueryConditionTargetValue().getIntValue())\r
 365                                         {\r
 366                                             queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 367                                         }\r
 368                                     }\r
 369                                 }\r
 370                                 if (operator == 3 && (property.getPropertyValues().getIntValue() != null))\r
 371                                 {\r
 372                                     for(IntValue value:values)\r
 373                                     {\r
 374                                         if (value.getValue()!=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 375                                         {\r
 376                                             queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 377                                         }\r
 378                                     }\r
 379                                 }\r
 380                                 if (operator == 4 && (property.getPropertyValues().getIntValue() != null))\r
 381                                 {\r
 382                                     for(IntValue value:values)\r
 383                                     {\r
 384                                         if (value.getValue()>queryCondition.getQueryConditionTargetValue().getIntValue())\r
 385                                         {\r
 386                                             queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 387                                         }\r
 388                                     }\r
 389                                 }\r
 390                                 if (operator == 5 && (property.getPropertyValues().getIntValue() != null))\r
 391                                 {\r
 392                                     for(IntValue value:values)\r
 393                                     {\r
 394                                         if (value.getValue()>=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 395                                         {\r
 396                                             queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 397                                         }\r
 398                                     }\r
 399                                 }\r
 400                                 if (operator == 6 && (property.getPropertyValues().getIntValue() != null))\r
 401                                 {\r
 402                                     //between todo\r
 403                                 }\r
 404                             }\r
 405                         }\r
 406                     }\r
 407                     if (flow.getMatchItem() != null)\r
 408                     {\r
 409                         for(MatchItem matchItem: flow.getMatchItem())\r
 410                         {\r
 411                             if (matchItem.getMatchItemName().equals(queryCondition.getQueryConditionName()))\r
 412                             {\r
 413                                 int operator = queryCondition.getQueryConditionMatchPattern().getIntValue();\r
 414                                 if (operator == 0 && matchItem.getMatchItemValue().getIntValue()<queryCondition.getQueryConditionTargetValue().getIntValue())\r
 415                                 {\r
 416                                     queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 417                                 }\r
 418                                 if (operator == 1 && matchItem.getMatchItemValue().getIntValue()<=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 419                                 {\r
 420                                     queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 421                                 }\r
 422                                 if (operator == 2 && matchItem.getMatchItemValue().getIntValue()==queryCondition.getQueryConditionTargetValue().getIntValue())\r
 423                                 {\r
 424                                     queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 425                                 }\r
 426                                 if (operator == 3 && matchItem.getMatchItemValue().getIntValue()!=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 427                                 {\r
 428                                     queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 429                                 }\r
 430                                 if (operator == 4 && matchItem.getMatchItemValue().getIntValue()>queryCondition.getQueryConditionTargetValue().getIntValue())\r
 431                                 {\r
 432                                     queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 433                                 }\r
 434                                 if (operator == 5 && matchItem.getMatchItemValue().getIntValue()>=queryCondition.getQueryConditionTargetValue().getIntValue())\r
 435                                 {\r
 436                                     queryResult += flow.getFlowId().toString() + flow.getFlowName().toString() + flow.getMatchItem().toString() + flow.getProperty().toString();\r
 437                                 }\r
 438                                 if (operator == 6 )\r
 439                                 {\r
 440                                     //todo\r
 441                                 }\r
 442                             }\r
 443                         }\r
 444                     }\r
 445                 }\r
 446             }\r
 447         }\r
 448 \r
 449         return queryResult;\r
 450     }\r
 451 \r
 452     private String operationsInstanceQuery(UserId userId, QueryCondition queryCondition)\r
 453     {\r
 454         String queryResult = null;\r
 455         fetchOperationsInstance(userId);\r
 456         List<Operation> operationList = operations.getOperation();\r
 457 \r
 458         //todo\r
 459 \r
 460       return queryResult;\r
 461     }\r
 462 \r
 463 \r
 464     private void fetchObjectsInstance(UserId userId)\r
 465     {\r
 466         UserKey userKey = new UserKey(userId);\r
 467         InstanceIdentifier<Objects> objectsId = InstanceIdentifier.builder(Users.class).child(User.class, userKey).child(Objects.class).build();\r
 468         ListenableFuture<Optional<Objects>> objectsFuture = dataBroker.newReadOnlyTransaction().read(LogicalDatastoreType.CONFIGURATION, objectsId);\r
 469         Futures.addCallback(objectsFuture, new FutureCallback<Optional<Objects>>() {\r
 470             @Override\r
 471             public void onSuccess(Optional<Objects> result)\r
 472             {\r
 473                 setObjects(result.get());\r
 474                 return;\r
 475             }\r
 476 \r
 477             @Override\r
 478             public void onFailure(Throwable t)\r
 479             {\r
 480                 LOG.error("Can not read objects instances.", t);\r
 481 \r
 482                 return;\r
 483             }\r
 484         });\r
 485     }\r
 486 \r
 487     private void fetchOperationsInstance(UserId userId)\r
 488     {\r
 489         UserKey userKey = new UserKey(userId);\r
 490         InstanceIdentifier<Operations> operationsId = InstanceIdentifier.builder(Users.class).child(User.class, userKey).child(Operations.class).build();\r
 491         ListenableFuture<Optional<Operations>> operationsFuture = dataBroker.newReadOnlyTransaction().read(LogicalDatastoreType.CONFIGURATION, operationsId);\r
 492         Futures.addCallback(operationsFuture, new FutureCallback<Optional<Operations>>() {\r
 493             @Override\r
 494             public void onSuccess(Optional<Operations> result)\r
 495             {\r
 496                 setOperations(result.get());\r
 497                 return;\r
 498             }\r
 499 \r
 500             @Override\r
 501             public void onFailure(Throwable t)\r
 502             {\r
 503                 LOG.error("Can not read operations instances.", t);\r
 504 \r
 505                 return;\r
 506             }\r
 507         });\r
 508     }\r
 509 \r
 510     private void setObjects(Objects objects)\r
 511     {\r
 512         this.objects = objects;\r
 513     }\r
 514     private void setOperations(Operations operations)\r
 515     {\r
 516         this.operations = operations;\r
 517     }\r
 518 \r
 519 }\r