sliapi/provider/src/main/java/org/openecomp/sdnc/sliapi/sliapiProvider.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP : CCSDK
   4  * ================================================================================
   5  * Copyright (C) 2017 ONAP
   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.openecomp.sdnc.sliapi;
  22
  23 import java.util.Enumeration;
  24 import java.util.LinkedList;
  25 import java.util.Properties;
  26 import java.util.concurrent.Future;
  27
  28 import org.onap.ccsdk.sli.core.sli.provider.SvcLogicService;
  29 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  30 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  31 import org.opendaylight.controller.md.sal.binding.impl.AbstractForwardedDataBroker;
  32 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  33 import org.opendaylight.controller.md.sal.common.api.data.OptimisticLockFailedException;
  34 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  35 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  36 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  37 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
  38 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  39 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
  40 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.ExecuteGraphInput;
  41 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.ExecuteGraphInput.Mode;
  42 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.ExecuteGraphInputBuilder;
  43 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.ExecuteGraphOutput;
  44 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.ExecuteGraphOutputBuilder;
  45 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.HealthcheckOutput;
  46 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.HealthcheckOutputBuilder;
  47 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.SLIAPIService;
  48 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.TestResults;
  49 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.execute.graph.input.SliParameter;
  50 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.test.results.TestResult;
  51 import org.opendaylight.yang.gen.v1.org.openecomp.sdnc.sliapi.rev161110.test.results.TestResultBuilder;
  52 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  53 import org.opendaylight.yangtools.yang.common.QName;
  54 import org.opendaylight.yangtools.yang.common.RpcResult;
  55 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  56 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  57 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  58 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  59 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  60 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
  61 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
  62 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  63 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  64 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetEntryNodeBuilder;
  65 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetNodeBuilder;
  66 import org.osgi.framework.BundleContext;
  67 import org.osgi.framework.FrameworkUtil;
  68 import org.osgi.framework.ServiceReference;
  69 import org.slf4j.Logger;
  70 import org.slf4j.LoggerFactory;
  71
  72 import com.google.common.util.concurrent.Futures;
  73
  74
  75 /**
  76  * Defines a base implementation for your provider. This class extends from a helper class
  77  * which provides storage for the most commonly used components of the MD-SAL. Additionally the
  78  * base class provides some basic logging and initialization / clean up methods.
  79  *
  80  * To use this, copy and paste (overwrite) the following method into the TestApplicationProviderModule
  81  * class which is auto generated under src/main/java in this project
  82  * (created only once during first compilation):
  83  *
  84  * <pre>
  85
  86     @Override
  87     public java.lang.AutoCloseable createInstance() {
  88
  89          final sliapiProvider provider = new sliapiProvider();
  90          provider.setDataBroker( getDataBrokerDependency() );
  91          provider.setNotificationService( getNotificationServiceDependency() );
  92          provider.setRpcRegistry( getRpcRegistryDependency() );
  93          provider.initialize();
  94          return new AutoCloseable() {
  95
  96             @Override
  97             public void close() throws Exception {
  98                 //TODO: CLOSE ANY REGISTRATION OBJECTS CREATED USING ABOVE BROKER/NOTIFICATION
  99                 //SERVIE/RPC REGISTRY
 100                 provider.close();
 101             }
 102         };
 103     }
 104
 105
 106     </pre>
 107  */
 108 public class sliapiProvider implements AutoCloseable, SLIAPIService{
 109
 110     private final Logger LOG = LoggerFactory.getLogger( sliapiProvider.class );
 111     private final String appName = "slitester";
 112
 113     protected DataBroker dataBroker;
 114     protected DOMDataBroker domDataBroker;
 115     protected NotificationProviderService notificationService;
 116     protected RpcProviderRegistry rpcRegistry;
 117
 118         protected BindingAwareBroker.RpcRegistration<SLIAPIService> rpcRegistration;
 119
 120         private static String SLIAPI_NAMESPACE = "org:openecomp:sdnc:sliapi";
 121         private static String SLIAPI_REVISION = "2016-11-10";
 122
 123         private static QName TEST_RESULTS_QNAME = null;
 124         private static QName TEST_RESULT_QNAME = null;
 125         private static QName TEST_ID_QNAME = null;
 126         private static QName RESULTS_QNAME = null;
 127
 128         static {
 129
 130                 TEST_RESULTS_QNAME = QName.create(SLIAPI_NAMESPACE, SLIAPI_REVISION, "test-results");
 131                 TEST_RESULT_QNAME = QName.create(TEST_RESULTS_QNAME, "test-result");
 132                 TEST_ID_QNAME = QName.create(TEST_RESULT_QNAME, "test-identifier");
 133                 RESULTS_QNAME = QName.create(TEST_RESULT_QNAME, "results");
 134         }
 135
 136
 137     public sliapiProvider() {
 138         this.LOG.info( "Creating provider for " + appName );
 139     }
 140
 141     public void initialize(){
 142         LOG.info( "Initializing provider for " + appName );
 143         //initialization code goes here.
 144
 145                 rpcRegistration = rpcRegistry.addRpcImplementation(SLIAPIService.class, this);
 146         LOG.info( "Initialization complete for " + appName );
 147     }
 148
 149     protected void initializeChild() {
 150         //Override if you have custom initialization intelligence
 151     }
 152
 153     @Override
 154     public void close() throws Exception {
 155         LOG.info( "Closing provider for " + appName );
 156         //closing code goes here
 157
 158             rpcRegistration.close();
 159         LOG.info( "Successfully closed provider for " + appName );
 160     }
 161
 162     public void setDataBroker(DataBroker dataBroker) {
 163         this.dataBroker = dataBroker;
 164                 if (dataBroker instanceof AbstractForwardedDataBroker) {
 165                         domDataBroker = ((AbstractForwardedDataBroker) dataBroker).getDelegate();
 166                 }
 167         if( LOG.isDebugEnabled() ){
 168             LOG.debug( "DataBroker set to " + (dataBroker==null?"null":"non-null") + "." );
 169         }
 170     }
 171
 172     public void setNotificationService(
 173             NotificationProviderService notificationService) {
 174         this.notificationService = notificationService;
 175         if( LOG.isDebugEnabled() ){
 176             LOG.debug( "Notification Service set to " + (notificationService==null?"null":"non-null") + "." );
 177         }
 178     }
 179
 180     public void setRpcRegistry(RpcProviderRegistry rpcRegistry) {
 181         this.rpcRegistry = rpcRegistry;
 182         if( LOG.isDebugEnabled() ){
 183             LOG.debug( "RpcRegistry set to " + (rpcRegistry==null?"null":"non-null") + "." );
 184         }
 185     }
 186
 187         @Override
 188         public Future<RpcResult<ExecuteGraphOutput>> executeGraph(ExecuteGraphInput input) {
 189                 RpcResult<ExecuteGraphOutput> rpcResult = null;
 190
 191                 SvcLogicService svcLogic = getSvcLogicService();
 192                 ExecuteGraphOutputBuilder respBuilder = new ExecuteGraphOutputBuilder();
 193
 194                 String calledModule = input.getModuleName();
 195                 String calledRpc = input.getRpcName();
 196                 Mode calledMode = input.getMode();
 197                 String modeStr = "sync";
 198
 199                 if (calledMode == Mode.Async) {
 200                         modeStr = "async";
 201                 }
 202
 203                 if (svcLogic == null) {
 204                         respBuilder.setResponseCode("500");
 205                         respBuilder.setResponseMessage("Could not locate OSGi SvcLogicService service");
 206                         respBuilder.setAckFinalIndicator("Y");
 207
 208                     rpcResult = RpcResultBuilder.<ExecuteGraphOutput> status(true).withResult(respBuilder.build()).build();
 209                     return(Futures.immediateFuture(rpcResult));
 210                 }
 211
 212
 213                 try {
 214                         if (!svcLogic.hasGraph(calledModule, calledRpc, null, modeStr)) {
 215                                 respBuilder.setResponseCode("404");
 216                                 respBuilder.setResponseMessage("Directed graph for "+calledModule+"/"+calledRpc+"/"+modeStr+" not found");
 217                                 respBuilder.setAckFinalIndicator("Y");
 218
 219                             rpcResult = RpcResultBuilder.<ExecuteGraphOutput> status(true).withResult(respBuilder.build()).build();
 220                             return(Futures.immediateFuture(rpcResult));
 221                         }
 222                 } catch (Exception e) {
 223                         LOG.error("Caught exception looking for directed graph for "+calledModule+"/"+calledRpc+"/"+modeStr, e);
 224
 225                         respBuilder.setResponseCode("500");
 226                         respBuilder.setResponseMessage("Internal error : could not determine if target graph exists");
 227                         respBuilder.setAckFinalIndicator("Y");
 228
 229                     rpcResult = RpcResultBuilder.<ExecuteGraphOutput> status(true).withResult(respBuilder.build()).build();
 230                     return(Futures.immediateFuture(rpcResult));
 231                 }
 232
 233                 // Load properties
 234                 Properties parms = new Properties();
 235
 236                 // Pass properties using names from sli-parameters
 237                 for (SliParameter sliParm : input.getSliParameter()) {
 238
 239                         String propValue = "";
 240
 241                         Boolean boolval = sliParm.isBooleanValue();
 242
 243                         if (boolval != null) {
 244                                 propValue = boolval.toString();
 245                         } else {
 246                                 Integer intval = sliParm.getIntValue();
 247                                 if (intval != null) {
 248                                         propValue = intval.toString();
 249                                 } else {
 250                                         propValue = sliParm.getStringValue();
 251                                         if (propValue == null) {
 252                                                 propValue = "";
 253                                         }
 254                                 }
 255                         }
 256                         parms.setProperty(sliParm.getParameterName(), propValue);
 257                 }
 258
 259                 // Also, pass "meta" properties (i.e. pass SliParameter objects themselves)
 260                 ExecuteGraphInputBuilder inputBuilder = new ExecuteGraphInputBuilder(input);
 261
 262                 SliapiHelper.toProperties(parms, "input", inputBuilder);
 263
 264                 try {
 265                         LOG.info("Calling directed graph for "+calledModule+"/"+calledRpc+"/"+modeStr);
 266
 267                         if (LOG.isTraceEnabled()) {
 268                                 StringBuffer argList = new StringBuffer();
 269                                 argList.append("Parameters : {");
 270                                 Enumeration e = parms.propertyNames();
 271                                 while (e.hasMoreElements()) {
 272                                         String propName = (String) e.nextElement();
 273                                         argList.append(" ("+propName+","+parms.getProperty(propName)+") ");
 274                                 }
 275                                 argList.append("}");
 276                                 LOG.trace(argList.toString());
 277                                 argList = null;
 278                         }
 279
 280
 281
 282                         Properties respProps = svcLogic.execute(calledModule, calledRpc,
 283                                         null, modeStr, parms, domDataBroker);
 284
 285                         StringBuilder sb = new StringBuilder("{");
 286
 287                         for (Object key : respProps.keySet()) {
 288                                 String keyValue = (String) key;
 289                                 if (keyValue != null && !"".equals(keyValue) && !keyValue.contains("input.sli-parameter")) {
 290                                         sb.append("\"").append(keyValue).append("\": \"").append(respProps.getProperty(keyValue)).append("\",");
 291                                 }
 292                         }
 293
 294                         sb.setLength(sb.length() - 1);
 295                         sb.append("}");
 296
 297                         respBuilder.setResponseCode(respProps.getProperty("error-code", "0"));
 298                         respBuilder.setResponseMessage(respProps.getProperty("error-message", ""));// TODO change response-text to response-message to match other BVC APIs
 299                         respBuilder.setAckFinalIndicator(respProps.getProperty("ack-final", "Y"));
 300                         respBuilder.setContextMemoryJson(sb.toString());
 301
 302                         TestResultBuilder testResultBuilder = new TestResultBuilder();
 303
 304                         SliapiHelper.toBuilder(respProps, testResultBuilder);
 305
 306                         String testIdentifier = testResultBuilder.getTestIdentifier();
 307
 308                         if ((testIdentifier != null) && (testIdentifier.length() > 0)) {
 309
 310                                 // Add test results to config tree
 311                                 LOG.debug("Saving test results for test id "+testIdentifier);
 312
 313                                 DomSaveTestResult(testResultBuilder.build(), true, LogicalDatastoreType.CONFIGURATION);
 314
 315                         }
 316
 317                 } catch (Exception e) {
 318                         LOG.error("Caught exception executing directed graph for"
 319                                         + calledModule + ":" + calledRpc + "," + modeStr + ">", e);
 320
 321                         respBuilder.setResponseCode("500");
 322                         respBuilder
 323                                         .setResponseMessage("Internal error : caught exception executing directed graph "
 324                                                         + calledModule
 325                                                         + "/"
 326                                                         + calledRpc
 327                                                         + "/"
 328                                                         + modeStr);
 329                         respBuilder.setAckFinalIndicator("Y");
 330
 331                 }
 332
 333                 rpcResult = RpcResultBuilder.<ExecuteGraphOutput> status(true)
 334                                 .withResult(respBuilder.build()).build();
 335                 return (Futures.immediateFuture(rpcResult));
 336         }
 337
 338
 339         private SvcLogicService getSvcLogicService() {
 340                 BundleContext bctx = FrameworkUtil.getBundle(SvcLogicService.class).getBundleContext();
 341
 342                 SvcLogicService svcLogic = null;
 343
 344         // Get SvcLogicService reference
 345                 ServiceReference sref = bctx.getServiceReference(SvcLogicService.NAME);
 346                 if (sref  != null)
 347                 {
 348                         svcLogic =  (SvcLogicService) bctx.getService(sref);
 349
 350                 }
 351                 else
 352                 {
 353                         LOG.warn("Cannot find service reference for "+SvcLogicService.NAME);
 354
 355                 }
 356
 357                 return(svcLogic);
 358         }
 359
 360         @Override
 361         public Future<RpcResult<HealthcheckOutput>> healthcheck() {
 362
 363                 RpcResult<HealthcheckOutput> rpcResult = null;
 364                 SvcLogicService svcLogic = getSvcLogicService();
 365
 366                 HealthcheckOutputBuilder respBuilder = new HealthcheckOutputBuilder();
 367
 368                 String calledModule = "sli";
 369                 String calledRpc = "healthcheck";
 370                 String modeStr = "sync";
 371
 372                 if (svcLogic == null) {
 373                         respBuilder.setResponseCode("500");
 374                         respBuilder.setResponseMessage("Could not locate OSGi SvcLogicService service");
 375                         respBuilder.setAckFinalIndicator("Y");
 376
 377                     rpcResult = RpcResultBuilder.<HealthcheckOutput> failed().withResult(respBuilder.build()).build();
 378                     return(Futures.immediateFuture(rpcResult));
 379                 }
 380
 381                 try {
 382                         if (!svcLogic.hasGraph(calledModule, calledRpc, null, modeStr)) {
 383                                 respBuilder.setResponseCode("404");
 384                                 respBuilder.setResponseMessage("Directed graph for "+calledModule+"/"+calledRpc+"/"+modeStr+" not found");
 385
 386                                 respBuilder.setAckFinalIndicator("Y");
 387
 388                             rpcResult = RpcResultBuilder.<HealthcheckOutput> status(true).withResult(respBuilder.build()).build();
 389                             return(Futures.immediateFuture(rpcResult));
 390                         }
 391                 } catch (Exception e) {
 392                         LOG.error("Caught exception looking for directed graph for "+calledModule+"/"+calledRpc+"/"+modeStr, e);
 393
 394                         respBuilder.setResponseCode("500");
 395                         respBuilder.setResponseMessage("Internal error : could not determine if target graph exists");
 396                         respBuilder.setAckFinalIndicator("Y");
 397
 398                     rpcResult = RpcResultBuilder.<HealthcheckOutput> failed().withResult(respBuilder.build()).build();
 399                     return(Futures.immediateFuture(rpcResult));
 400                 }
 401
 402                 try {
 403                         LOG.info("Calling directed graph for "+calledModule+"/"+calledRpc+"/"+modeStr);
 404
 405                         Properties parms = new Properties();
 406
 407                         Properties respProps = svcLogic.execute(calledModule, calledRpc,
 408                                         null, modeStr, parms);
 409
 410                         respBuilder.setResponseCode(respProps.getProperty("error-code", "0"));
 411                         respBuilder.setResponseMessage(respProps.getProperty("error-message", ""));
 412                         respBuilder.setAckFinalIndicator(respProps.getProperty("ack-final", "Y"));
 413
 414                 } catch (Exception e) {
 415                         LOG.error("Caught exception executing directed graph for"
 416                                         + calledModule + ":" + calledRpc + "," + modeStr + ">", e);
 417
 418                         respBuilder.setResponseCode("500");
 419                         respBuilder
 420                                         .setResponseMessage("Internal error : caught exception executing directed graph "
 421                                                         + calledModule
 422                                                         + "/"
 423                                                         + calledRpc
 424                                                         + "/"
 425                                                         + modeStr);
 426                         respBuilder.setAckFinalIndicator("Y");
 427
 428                 }
 429
 430                 rpcResult = RpcResultBuilder.<HealthcheckOutput> status(true)
 431                                 .withResult(respBuilder.build()).build();
 432                 return (Futures.immediateFuture(rpcResult));
 433         }
 434
 435         private void DomSaveTestResult(final TestResult entry, boolean merge, LogicalDatastoreType storeType) {
 436
 437
 438                 if (domDataBroker == null) {
 439                         LOG.error("domDataBroker unset - cannot save test result using DOMDataBroker");
 440                         return;
 441                 }
 442
 443                 MapEntryNode resultNode = null;
 444
 445                 try {
 446                         resultNode = toMapEntryNode(entry);
 447                 } catch (Exception e) {
 448                         LOG.error("Caught exception trying to create map entry node", e);
 449                 }
 450
 451                 if (resultNode == null) {
 452                         LOG.error("Could not convert entry to MapEntryNode");
 453                         return;
 454                 }
 455
 456
 457                 YangInstanceIdentifier testResultsPid = YangInstanceIdentifier.builder().node(TEST_RESULTS_QNAME).node(QName.create(TEST_RESULTS_QNAME, "test-result")).build();
 458                 YangInstanceIdentifier testResultPid = testResultsPid.node(new NodeIdentifierWithPredicates(TEST_RESULT_QNAME, resultNode.getIdentifier().getKeyValues()));
 459
 460
 461
 462                 int tries = 2;
 463                 while(true) {
 464                         try {
 465                                 DOMDataWriteTransaction wtx = domDataBroker.newWriteOnlyTransaction();
 466                                 if (merge) {
 467                                         LOG.info("Merging test identifier "+entry.getTestIdentifier());
 468                                         wtx.merge(storeType, testResultPid, resultNode);
 469                                 } else {
 470                                         LOG.info("Putting test identifier "+entry.getTestIdentifier());
 471                                         wtx.put(storeType,  testResultPid, resultNode);
 472                                 }
 473                                 wtx.submit().checkedGet();
 474                                 LOG.trace("Update DataStore succeeded");
 475                                 break;
 476                         } catch (final TransactionCommitFailedException e) {
 477                                 if(e instanceof OptimisticLockFailedException) {
 478                                         if(--tries <= 0) {
 479                                                 LOG.trace("Got OptimisticLockFailedException on last try - failing ");
 480                                                 throw new IllegalStateException(e);
 481                                         }
 482                                         LOG.trace("Got OptimisticLockFailedException - trying again ");
 483                                 } else {
 484                                         LOG.trace("Update DataStore failed");
 485                                         throw new IllegalStateException(e);
 486                                 }
 487                         }
 488                 }
 489
 490         }
 491
 492                 private void SaveTestResult(final TestResult entry, boolean merge, LogicalDatastoreType storeType) throws IllegalStateException
 493                 {
 494                         // Each entry will be identifiable by a unique key, we have to create that identifier
 495                         InstanceIdentifier.InstanceIdentifierBuilder<TestResult> testResultIdBuilder =
 496                                         InstanceIdentifier.<TestResults>builder(TestResults.class)
 497                                         .child(TestResult.class, entry.getKey());
 498                         InstanceIdentifier<TestResult> path = testResultIdBuilder.toInstance();
 499                         int tries = 2;
 500                         while(true) {
 501                                 try {
 502                                         WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
 503                                         if (merge) {
 504                                                 tx.merge(storeType, path, entry);
 505                                         } else {
 506                                                 tx.put(storeType, path, entry);
 507                                         }
 508                                         tx.submit().checkedGet();
 509                                         LOG.trace("Update DataStore succeeded");
 510                                         break;
 511                                 } catch (final TransactionCommitFailedException e) {
 512                                         if(e instanceof OptimisticLockFailedException) {
 513                                                 if(--tries <= 0) {
 514                                                         LOG.trace("Got OptimisticLockFailedException on last try - failing ");
 515                                                         throw new IllegalStateException(e);
 516                                                 }
 517                                                 LOG.trace("Got OptimisticLockFailedException - trying again ");
 518                                         } else {
 519                                                 LOG.trace("Update DataStore failed");
 520                                                 throw new IllegalStateException(e);
 521                                         }
 522                                 }
 523                         }
 524                 }
 525
 526                 private MapEntryNode toMapEntryNode(TestResult testResult) {
 527
 528
 529                         YangInstanceIdentifier testResultId = YangInstanceIdentifier.builder().node(TEST_RESULTS_QNAME).node(TEST_RESULT_QNAME).build();
 530
 531                         // Construct results list
 532                         LinkedList<LeafSetEntryNode<Object>> entryList = new LinkedList<LeafSetEntryNode<Object>>();
 533                         for (String result : testResult.getResults()) {
 534                                 LeafSetEntryNode<Object> leafSetEntryNode = ImmutableLeafSetEntryNodeBuilder.create()
 535                                                                                                                                                                 .withNodeIdentifier(new NodeWithValue(RESULTS_QNAME, result))
 536                                                                                                                                                                 .withValue(result)
 537                                                                                                                                                                 .build();
 538                                 entryList.add(leafSetEntryNode);
 539                         }
 540                         // Construct results LeafSetNode
 541                         LeafSetNode<?> resultsNode = ImmutableLeafSetNodeBuilder.create().withNodeIdentifier(new NodeIdentifier(RESULTS_QNAME)).withValue(entryList).build();
 542
 543
 544
 545                         // Construct test result ContainerNode with 2 children - test-identifier leaf and results leaf-set
 546                         MapEntryNode testResultNode = ImmutableNodes.mapEntryBuilder()
 547                                         .withNodeIdentifier(new NodeIdentifierWithPredicates(TEST_RESULT_QNAME, TEST_ID_QNAME, testResult.getTestIdentifier()))
 548                                         .withChild(ImmutableNodes.leafNode(TEST_ID_QNAME, testResult.getTestIdentifier()))
 549                                         .withChild(resultsNode)
 550                                         .build();
 551
 552                         return(testResultNode);
 553
 554                 }
 555
 556 }