dom/mdsal-dom-broker/src/test/java/org/opendaylight/mdsal/dom/broker/ShardedDOMDataTreeTest.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.mdsal.dom.broker;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertTrue;
  13 import static org.junit.Assert.fail;
  14 import static org.mockito.Matchers.any;
  15 import static org.mockito.Matchers.anyCollection;
  16 import static org.mockito.Matchers.anyMap;
  17 import static org.mockito.Mockito.doNothing;
  18 import static org.mockito.Mockito.mock;
  19 import static org.mockito.Mockito.timeout;
  20 import static org.mockito.Mockito.times;
  21 import static org.mockito.Mockito.verify;
  22 import static org.mockito.Mockito.verifyNoMoreInteractions;
  23
  24 import com.google.common.util.concurrent.ListenableFuture;
  25 import java.util.ArrayList;
  26 import java.util.Collection;
  27 import java.util.Collections;
  28 import java.util.List;
  29 import java.util.Map;
  30 import java.util.concurrent.ExecutorService;
  31 import java.util.concurrent.Executors;
  32 import org.junit.Before;
  33 import org.junit.Test;
  34 import org.mockito.ArgumentCaptor;
  35 import org.mockito.Captor;
  36 import org.mockito.MockitoAnnotations;
  37 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  38 import org.opendaylight.mdsal.dom.api.DOMDataTreeCursorAwareTransaction;
  39 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  40 import org.opendaylight.mdsal.dom.api.DOMDataTreeListener;
  41 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducer;
  42 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteCursor;
  43 import org.opendaylight.mdsal.dom.broker.util.TestModel;
  44 import org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataTreeShard;
  45 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  46 import org.opendaylight.yangtools.yang.common.QName;
  47 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  48 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  49 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  50 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  51 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  52 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  53 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  54 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  55 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  56 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  57 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  58 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
  59 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableMapNodeBuilder;
  60 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  61
  62 public class ShardedDOMDataTreeTest {
  63
  64     private static final SchemaContext SCHEMA_CONTEXT = TestModel.createTestContext();
  65
  66     private static final DOMDataTreeIdentifier ROOT_ID =
  67             new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.EMPTY);
  68     private static final DOMDataTreeIdentifier TEST_ID =
  69             new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, TestModel.TEST_PATH);
  70
  71     private static final DOMDataTreeIdentifier INNER_CONTAINER_ID =
  72             new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, TestModel.INNER_CONTAINER_PATH);
  73
  74     private static final YangInstanceIdentifier OUTER_LIST_YID = TestModel.OUTER_LIST_PATH.node(
  75             new NodeIdentifierWithPredicates(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1));
  76     private static final DOMDataTreeIdentifier OUTER_LIST_ID =
  77             new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, OUTER_LIST_YID);
  78
  79     private InMemoryDOMDataTreeShard rootShard;
  80
  81     private ShardedDOMDataTree dataTreeService;
  82     private ListenerRegistration<InMemoryDOMDataTreeShard> rootShardReg;
  83
  84     private final ExecutorService executor = Executors.newSingleThreadExecutor();
  85
  86     @Captor
  87     private ArgumentCaptor<Collection<DataTreeCandidate>> captorForChanges;
  88     @Captor
  89     private ArgumentCaptor<Map<DOMDataTreeIdentifier, NormalizedNode<?, ?>>> captorForSubtrees;
  90
  91     private final ContainerNode crossShardContainer = createCrossShardContainer();
  92
  93     @Before
  94     public void setUp() throws Exception {
  95         MockitoAnnotations.initMocks(this);
  96
  97         rootShard = InMemoryDOMDataTreeShard.create(ROOT_ID, executor, 1);
  98         rootShard.onGlobalContextUpdated(SCHEMA_CONTEXT);
  99
 100         final ShardedDOMDataTree dataTree = new ShardedDOMDataTree();
 101         final DOMDataTreeProducer shardRegProducer = dataTree.createProducer(Collections.singletonList(ROOT_ID));
 102         rootShardReg = dataTree.registerDataTreeShard(ROOT_ID, rootShard, shardRegProducer);
 103         shardRegProducer.close();
 104
 105         dataTreeService = dataTree;
 106     }
 107
 108     @Test(expected = IllegalArgumentException.class)
 109     public void testProducerPathContention() throws Exception {
 110         dataTreeService.createProducer(Collections.singletonList(ROOT_ID));
 111         dataTreeService.createProducer(Collections.singletonList(TEST_ID));
 112     }
 113
 114     @Test
 115     public void testShardRegistrationClose() throws Exception {
 116         rootShardReg.close();
 117
 118         final InMemoryDOMDataTreeShard newRootShard = InMemoryDOMDataTreeShard.create(ROOT_ID, executor, 1);
 119         newRootShard.onGlobalContextUpdated(SCHEMA_CONTEXT);
 120         final DOMDataTreeProducer shardRegProducer = dataTreeService.createProducer(Collections.singletonList(ROOT_ID));
 121
 122         final ListenerRegistration<InMemoryDOMDataTreeShard> newRootShardReg =
 123                 dataTreeService.registerDataTreeShard(ROOT_ID, rootShard, shardRegProducer);
 124         shardRegProducer.close();
 125
 126         final InMemoryDOMDataTreeShard innerShard = InMemoryDOMDataTreeShard.create(INNER_CONTAINER_ID, executor, 1);
 127         innerShard.onGlobalContextUpdated(SCHEMA_CONTEXT);
 128         final DOMDataTreeProducer shardRegProducer2 =
 129                 dataTreeService.createProducer(Collections.singletonList(INNER_CONTAINER_ID));
 130         ListenerRegistration<InMemoryDOMDataTreeShard> innerShardReg =
 131                 dataTreeService.registerDataTreeShard(INNER_CONTAINER_ID, innerShard, shardRegProducer2);
 132
 133         innerShardReg.close();
 134         // try to register the shard again
 135         innerShardReg = dataTreeService.registerDataTreeShard(INNER_CONTAINER_ID, innerShard, shardRegProducer2);
 136         final DOMDataTreeCursorAwareTransaction tx = shardRegProducer2.createTransaction(false);
 137         final DOMDataTreeWriteCursor cursor = tx.createCursor(INNER_CONTAINER_ID);
 138         assertNotNull(cursor);
 139
 140         cursor.close();
 141         tx.cancel();
 142         shardRegProducer2.close();
 143
 144         innerShardReg.close();
 145         newRootShardReg.close();
 146     }
 147
 148     @Test(expected = IllegalStateException.class)
 149     public void testEmptyShardMapProducer() throws Exception {
 150         final ShardedDOMDataTree dataTree = new ShardedDOMDataTree();
 151         final DOMDataTreeProducer producer = dataTree.createProducer(Collections.singletonList(ROOT_ID));
 152         producer.createTransaction(false);
 153     }
 154
 155     @Test
 156     public void testSingleShardWrite() throws Exception {
 157         final DOMDataTreeListener mockedDataTreeListener = mock(DOMDataTreeListener.class);
 158         doNothing().when(mockedDataTreeListener).onDataTreeChanged(anyCollection(), anyMap());
 159
 160         dataTreeService.registerListener(mockedDataTreeListener, Collections.singletonList(INNER_CONTAINER_ID),
 161                 true, Collections.emptyList());
 162
 163         final DOMDataTreeProducer producer = dataTreeService.createProducer(Collections.singletonList(ROOT_ID));
 164         DOMDataTreeCursorAwareTransaction tx = producer.createTransaction(false);
 165         DOMDataTreeWriteCursor cursor = tx.createCursor(ROOT_ID);
 166         assertNotNull(cursor);
 167
 168         cursor.write(TEST_ID.getRootIdentifier().getLastPathArgument(), crossShardContainer);
 169
 170         try {
 171             tx.commit().get();
 172             fail("There's still an open cursor");
 173         } catch (final IllegalStateException e) {
 174             assertTrue(e.getMessage().contains("cursor open"));
 175         }
 176
 177         cursor.close();
 178         tx.commit().get();
 179
 180         tx = producer.createTransaction(false);
 181         cursor = tx.createCursor(TEST_ID);
 182         assertNotNull(cursor);
 183
 184         cursor.delete(TestModel.INNER_CONTAINER_PATH.getLastPathArgument());
 185         cursor.close();
 186         tx.commit().get();
 187
 188         verify(mockedDataTreeListener, timeout(1000).times(3)).onDataTreeChanged(captorForChanges.capture(),
 189                 captorForSubtrees.capture());
 190         final List<Collection<DataTreeCandidate>> capturedValue = captorForChanges.getAllValues();
 191         assertTrue(capturedValue.size() == 3);
 192
 193         final ContainerNode capturedChange =
 194                 (ContainerNode) capturedValue.get(1).iterator().next().getRootNode().getDataAfter().get();
 195         final ContainerNode innerContainerVerify = (ContainerNode) crossShardContainer.getChild(
 196                 TestModel.INNER_CONTAINER_PATH.getLastPathArgument()).get();
 197         assertEquals(innerContainerVerify, capturedChange);
 198
 199         verifyNoMoreInteractions(mockedDataTreeListener);
 200     }
 201
 202     @Test
 203     // TODO extract common logic from testSingleSubshardWrite and
 204     // testSingleShardWrite tests
 205     public void testSingleSubshardWrite() throws Exception {
 206         final DOMDataTreeListener mockedDataTreeListener = mock(DOMDataTreeListener.class);
 207         doNothing().when(mockedDataTreeListener).onDataTreeChanged(anyCollection(), anyMap());
 208
 209         InMemoryDOMDataTreeShard testShard = InMemoryDOMDataTreeShard.create(TEST_ID, executor, 1);
 210         testShard.onGlobalContextUpdated(SCHEMA_CONTEXT);
 211
 212         final DOMDataTreeProducer regProducer = dataTreeService.createProducer(Collections.singleton(TEST_ID));
 213         dataTreeService.registerDataTreeShard(TEST_ID, testShard, regProducer);
 214         regProducer.close();
 215
 216         dataTreeService.registerListener(mockedDataTreeListener, Collections.singletonList(TEST_ID),
 217                 true, Collections.emptyList());
 218
 219         final DOMDataTreeProducer producer = dataTreeService.createProducer(Collections.singletonList(ROOT_ID));
 220         DOMDataTreeCursorAwareTransaction tx = producer.createTransaction(false);
 221         DOMDataTreeWriteCursor cursor = tx.createCursor(ROOT_ID);
 222         assertNotNull(cursor);
 223
 224         cursor.write(TEST_ID.getRootIdentifier().getLastPathArgument(), crossShardContainer);
 225
 226         cursor.close();
 227         tx.commit().get();
 228
 229         tx = producer.createTransaction(false);
 230         cursor = tx.createCursor(TEST_ID);
 231         assertNotNull(cursor);
 232
 233         cursor.delete(TestModel.INNER_CONTAINER_PATH.getLastPathArgument());
 234         cursor.close();
 235         tx.commit().get();
 236
 237         verify(mockedDataTreeListener, timeout(5000).times(3)).onDataTreeChanged(captorForChanges.capture(),
 238                 captorForSubtrees.capture());
 239
 240         final List<Collection<DataTreeCandidate>> capturedValue = captorForChanges.getAllValues();
 241         final ContainerNode capturedChange =
 242                 (ContainerNode) capturedValue.get(1).iterator().next().getRootNode().getDataAfter().get();
 243         final ContainerNode innerContainerVerify = crossShardContainer;
 244         assertEquals(innerContainerVerify, capturedChange);
 245     }
 246
 247     @Test
 248     public void testMultipleWritesIntoSingleMapEntry() throws Exception {
 249
 250         final YangInstanceIdentifier oid1 = TestModel.OUTER_LIST_PATH.node(new NodeIdentifierWithPredicates(
 251                 TestModel.OUTER_LIST_QNAME, QName.create(TestModel.OUTER_LIST_QNAME, "id"), 0));
 252         final DOMDataTreeIdentifier outerListPath = new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, oid1);
 253
 254         final DOMDataTreeProducer shardProducer = dataTreeService.createProducer(
 255                 Collections.singletonList(outerListPath));
 256         final InMemoryDOMDataTreeShard outerListShard = InMemoryDOMDataTreeShard.create(outerListPath, executor, 1000);
 257         outerListShard.onGlobalContextUpdated(SCHEMA_CONTEXT);
 258
 259         final ListenerRegistration<InMemoryDOMDataTreeShard> oid1ShardRegistration =
 260                 dataTreeService.registerDataTreeShard(outerListPath, outerListShard, shardProducer);
 261
 262         final DOMDataTreeCursorAwareTransaction tx = shardProducer.createTransaction(false);
 263         final DOMDataTreeWriteCursor cursor =
 264                 tx.createCursor(new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, oid1));
 265         assertNotNull(cursor);
 266
 267         MapNode innerList = ImmutableMapNodeBuilder
 268                 .create()
 269                 .withNodeIdentifier(new NodeIdentifier(TestModel.INNER_LIST_QNAME))
 270                 .build();
 271
 272         cursor.write(new NodeIdentifier(TestModel.INNER_LIST_QNAME), innerList);
 273         cursor.close();
 274         tx.commit().get();
 275
 276         final ArrayList<ListenableFuture<?>> futures = new ArrayList<>();
 277         for (int i = 0; i < 1000; i++) {
 278             final Collection<MapEntryNode> innerListMapEntries = createInnerListMapEntries(1000, "run-" + i);
 279             for (final MapEntryNode innerListMapEntry : innerListMapEntries) {
 280                 final DOMDataTreeCursorAwareTransaction tx1 = shardProducer.createTransaction(false);
 281                 final DOMDataTreeWriteCursor cursor1 = tx1.createCursor(
 282                         new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION,
 283                                 oid1.node(new NodeIdentifier(TestModel.INNER_LIST_QNAME))));
 284                 cursor1.write(innerListMapEntry.getIdentifier(), innerListMapEntry);
 285                 cursor1.close();
 286                 futures.add(tx1.commit());
 287             }
 288         }
 289
 290         futures.get(futures.size() - 1).get();
 291
 292     }
 293
 294     private static Collection<MapEntryNode> createInnerListMapEntries(final int amount, final String valuePrefix) {
 295         final Collection<MapEntryNode> ret = new ArrayList<>();
 296         for (int i = 0; i < amount; i++) {
 297             ret.add(ImmutableNodes.mapEntryBuilder()
 298                     .withNodeIdentifier(new NodeIdentifierWithPredicates(TestModel.INNER_LIST_QNAME,
 299                             QName.create(TestModel.OUTER_LIST_QNAME, "name"), Integer.toString(i)))
 300                     .withChild(ImmutableNodes
 301                             .leafNode(QName.create(TestModel.INNER_LIST_QNAME, "name"), Integer.toString(i)))
 302                     .withChild(ImmutableNodes
 303                             .leafNode(QName.create(TestModel.INNER_LIST_QNAME, "value"), valuePrefix + "-" + i))
 304                     .build());
 305         }
 306
 307         return ret;
 308     }
 309
 310     @Test
 311     public void testMultipleProducerCursorCreation() throws Exception {
 312
 313         final DOMDataTreeProducer rootProducer = dataTreeService.createProducer(Collections.singletonList(ROOT_ID));
 314         DOMDataTreeCursorAwareTransaction rootTx = rootProducer.createTransaction(false);
 315         //check if we can create cursor where the new producer will be
 316         DOMDataTreeWriteCursor rootTxCursor = rootTx.createCursor(INNER_CONTAINER_ID);
 317         assertNotNull(rootTxCursor);
 318         rootTxCursor.close();
 319
 320         try {
 321             rootProducer.createProducer(Collections.singletonList(INNER_CONTAINER_ID));
 322             fail("Should've failed there is still a tx open");
 323         } catch (final IllegalStateException e) {
 324             assertTrue(e.getMessage().contains("open"));
 325         }
 326
 327         assertTrue(rootTx.cancel());
 328
 329         final DOMDataTreeProducer innerContainerProducer = rootProducer.createProducer(
 330                 Collections.singletonList(INNER_CONTAINER_ID));
 331
 332         rootTx = rootProducer.createTransaction(false);
 333         try {
 334             rootTx.createCursor(INNER_CONTAINER_ID);
 335             fail("Subtree should not be available to this producer");
 336         } catch (final IllegalArgumentException e) {
 337             assertTrue(e.getMessage().contains("delegated to child producer"));
 338         }
 339
 340         rootTxCursor = rootTx.createCursor(TEST_ID);
 341         assertNotNull(rootTxCursor);
 342         try {
 343             rootTxCursor.enter(INNER_CONTAINER_ID.getRootIdentifier().getLastPathArgument());
 344             fail("Cursor should not have this subtree available");
 345         } catch (final IllegalArgumentException e) {
 346             assertTrue(e.getMessage().contains("not available to this cursor"));
 347         }
 348
 349         try {
 350             rootTxCursor.write(TestModel.INNER_CONTAINER_PATH.getLastPathArgument(),
 351                     ImmutableContainerNodeBuilder.create()
 352                             .withNodeIdentifier(new NodeIdentifier(TestModel.INNER_CONTAINER))
 353                             .build());
 354             fail("Cursor should not have this subtree available");
 355         } catch (final IllegalArgumentException e) {
 356             assertTrue(e.getMessage().contains("not available to this cursor"));
 357         }
 358
 359         final DOMDataTreeCursorAwareTransaction innerShardTx = innerContainerProducer.createTransaction(false);
 360         final DOMDataTreeWriteCursor innerShardCursor = innerShardTx.createCursor(INNER_CONTAINER_ID);
 361         assertNotNull(innerShardCursor);
 362     }
 363
 364     private static ContainerNode createCrossShardContainer() {
 365         final LeafNode<String> shardedValue1 =
 366                 ImmutableLeafNodeBuilder.<String>create().withNodeIdentifier(new NodeIdentifier(
 367                         TestModel.SHARDED_VALUE_1)).withValue("sharded value 1").build();
 368         final LeafNode<String> shardedValue2 =
 369                 ImmutableLeafNodeBuilder.<String>create().withNodeIdentifier(new NodeIdentifier(
 370                         TestModel.SHARDED_VALUE_2)).withValue("sharded value 2").build();
 371
 372
 373         final ContainerNode lowerShardContainer = ImmutableContainerNodeBuilder.create()
 374                 .withNodeIdentifier(new NodeIdentifier(TestModel.ANOTHER_SHARD_CONTAINER))
 375                 .withChild(ImmutableLeafNodeBuilder.create()
 376                         .withNodeIdentifier(new NodeIdentifier(TestModel.ANOTHER_SHARD_VALUE))
 377                         .withValue("testing-value")
 378                         .build())
 379                 .build();
 380
 381         final ContainerNode containerNode =
 382                 ImmutableContainerNodeBuilder.create()
 383                         .withNodeIdentifier(new NodeIdentifier(TestModel.INNER_CONTAINER))
 384                         .withChild(shardedValue1)
 385                         .withChild(shardedValue2)
 386                         .withChild(lowerShardContainer)
 387                         .build();
 388
 389         final ContainerNode testContainer = ImmutableContainerNodeBuilder.create()
 390                 .withNodeIdentifier(new NodeIdentifier(TestModel.TEST_QNAME))
 391                 .withChild(containerNode)
 392                 .build();
 393
 394         return testContainer;
 395     }
 396
 397     //test multiple vertical levels between the shards
 398     @Test
 399     public void testLargerSubshardSpace() throws Exception {
 400
 401         final InMemoryDOMDataTreeShard outerListShard = InMemoryDOMDataTreeShard.create(OUTER_LIST_ID, executor, 1, 1);
 402         outerListShard.onGlobalContextUpdated(SCHEMA_CONTEXT);
 403
 404         try (DOMDataTreeProducer producer =
 405                      dataTreeService.createProducer(Collections.singletonList(OUTER_LIST_ID))) {
 406             dataTreeService.registerDataTreeShard(OUTER_LIST_ID, outerListShard, producer);
 407         }
 408
 409         final DOMDataTreeProducer producer = dataTreeService.createProducer(Collections.singletonList(ROOT_ID));
 410         final DOMDataTreeCursorAwareTransaction tx = producer.createTransaction(false);
 411         final DOMDataTreeWriteCursor cursor = tx.createCursor(ROOT_ID);
 412
 413         assertNotNull(cursor);
 414         cursor.write(TestModel.TEST_PATH.getLastPathArgument(), createCrossShardContainer2());
 415         cursor.close();
 416
 417         tx.commit().get();
 418
 419         final DOMDataTreeListener listener = mock(DOMDataTreeListener.class);
 420         doNothing().when(listener).onDataTreeChanged(any(), any());
 421         dataTreeService.registerListener(listener,
 422                 Collections.singletonList(
 423                         new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.EMPTY)),
 424                 false, Collections.emptyList());
 425
 426         verify(listener, times(2)).onDataTreeChanged(any(), any());
 427
 428
 429     }
 430
 431     private static ContainerNode createCrossShardContainer2() {
 432
 433         final MapEntryNode
 434                 innerListEntry1 = ImmutableNodes
 435                 .mapEntryBuilder(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "name-1")
 436                 .withChild(ImmutableNodes.leafNode(TestModel.NAME_QNAME, "name-1"))
 437                 .withChild(ImmutableNodes.leafNode(TestModel.VALUE_QNAME, "value-1"))
 438                 .build();
 439         final MapEntryNode innerListEntry2 = ImmutableNodes
 440                 .mapEntryBuilder(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "name-2")
 441                 .withChild(ImmutableNodes.leafNode(TestModel.NAME_QNAME, "name-2"))
 442                 .withChild(ImmutableNodes.leafNode(TestModel.VALUE_QNAME, "value-2"))
 443                 .build();
 444
 445         final MapNode innerList1 = ImmutableNodes
 446                 .mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(innerListEntry1).build();
 447         final MapNode innerList2 = ImmutableNodes
 448                 .mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(innerListEntry2).build();
 449
 450         final MapEntryNode outerListEntry1 = ImmutableNodes
 451                 .mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 452                 .withChild(innerList1)
 453                 .build();
 454         final MapEntryNode outerListEntry2 = ImmutableNodes
 455                 .mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 2)
 456                 .withChild(innerList2)
 457                 .build();
 458
 459         final MapNode outerList = ImmutableNodes.mapNodeBuilder(TestModel.OUTER_LIST_QNAME)
 460                 .withChild(outerListEntry1)
 461                 .withChild(outerListEntry2)
 462                 .build();
 463
 464         final ContainerNode testContainer = ImmutableContainerNodeBuilder.create()
 465                 .withNodeIdentifier(new NodeIdentifier(TestModel.TEST_QNAME))
 466                 .withChild(outerList)
 467                 .build();
 468
 469         return testContainer;
 470     }
 471 }