opendaylight/md-sal/sal-clustering-commons/src/test/java/org/opendaylight/controller/cluster/datastore/node/utils/transformer/NormalizedNodePrunerTest.java

   1 /*
   2  * Copyright (c) 2015 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
   9 package org.opendaylight.controller.cluster.datastore.node.utils.transformer;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertNull;
  13 import static org.junit.Assert.assertTrue;
  14 import static org.mockito.Mockito.mock;
  15 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapEntry;
  16 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapEntryBuilder;
  17 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapNodeBuilder;
  18
  19 import com.google.common.collect.Sets;
  20 import java.io.IOException;
  21 import java.util.concurrent.atomic.AtomicInteger;
  22 import javax.xml.transform.dom.DOMSource;
  23 import org.junit.Assert;
  24 import org.junit.Before;
  25 import org.junit.Test;
  26 import org.mockito.MockitoAnnotations;
  27 import org.opendaylight.controller.cluster.datastore.node.utils.NormalizedNodeNavigator;
  28 import org.opendaylight.controller.cluster.datastore.util.TestModel;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
  31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  32 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  33 import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
  34 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  35 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
  36 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  37 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  38 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
  39 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  40 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  41 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetEntryNodeBuilder;
  42 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetNodeBuilder;
  43 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  44
  45 public class NormalizedNodePrunerTest {
  46     private static final SchemaContext NO_TEST_SCHEMA = TestModel.createTestContextWithoutTestSchema();
  47     private static final SchemaContext NO_AUG_SCHEMA = TestModel.createTestContextWithoutAugmentationSchema();
  48     private static final SchemaContext FULL_SCHEMA = TestModel.createTestContext();
  49
  50     @Before
  51     public void setUp() {
  52         MockitoAnnotations.initMocks(this);
  53     }
  54
  55     private static NormalizedNodePruner prunerFullSchema(YangInstanceIdentifier path) {
  56         return new NormalizedNodePruner(path, FULL_SCHEMA);
  57     }
  58
  59     private static NormalizedNodePruner prunerNoAugSchema(YangInstanceIdentifier path) {
  60         return new NormalizedNodePruner(path, NO_AUG_SCHEMA);
  61     }
  62
  63     private static NormalizedNodePruner prunerNoTestSchema(YangInstanceIdentifier path) {
  64         return new NormalizedNodePruner(path, NO_TEST_SCHEMA);
  65     }
  66
  67     @Test
  68     public void testNodesNotPrunedWhenSchemaPresent() throws IOException {
  69         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
  70
  71         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
  72
  73         NormalizedNode<?, ?> expected = createTestContainer();
  74
  75         normalizedNodeWriter.write(expected);
  76
  77         NormalizedNode<?, ?> actual = pruner.normalizedNode();
  78
  79         assertEquals(expected, actual);
  80
  81     }
  82
  83     @Test(expected = IllegalStateException.class)
  84     public void testReusePruner() throws IOException {
  85         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
  86
  87         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
  88
  89         NormalizedNode<?, ?> expected = createTestContainer();
  90
  91         normalizedNodeWriter.write(expected);
  92
  93         NormalizedNode<?, ?> actual = pruner.normalizedNode();
  94
  95         assertEquals(expected, actual);
  96
  97         NormalizedNodeWriter.forStreamWriter(pruner).write(expected);
  98
  99     }
 100
 101
 102     @Test
 103     public void testNodesPrunedWhenAugmentationSchemaMissing() throws IOException {
 104         NormalizedNodePruner pruner = prunerNoAugSchema(TestModel.TEST_PATH);
 105
 106         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
 107
 108         NormalizedNode<?, ?> expected = createTestContainer();
 109
 110         normalizedNodeWriter.write(expected);
 111
 112         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 113
 114         Assert.assertNotEquals(expected, actual);
 115
 116         // Asserting true here instead of checking actual value because I don't want this assertion to be fragile
 117         assertTrue(countNodes(expected, "store:aug") > 0);
 118
 119         // All nodes from the augmentation module are gone from the resulting node
 120         assertEquals(0, countNodes(actual, "store:aug"));
 121     }
 122
 123     @Test
 124     public void testNodesPrunedWhenTestSchemaMissing() throws IOException {
 125         NormalizedNodePruner pruner = prunerNoTestSchema(TestModel.TEST_PATH);
 126
 127         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
 128
 129         NormalizedNode<?, ?> expected = createTestContainer();
 130
 131         normalizedNodeWriter.write(expected);
 132
 133         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 134
 135         // Since top level schema is missing null is returned
 136         assertNull(actual);
 137
 138         // Asserting true here instead of checking actual value because I don't want this assertion to be fragile
 139         assertTrue(countNodes(expected, "urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test") > 0);
 140
 141     }
 142
 143     private static int countNodes(NormalizedNode<?,?> normalizedNode, final String namespaceFilter) {
 144         if (normalizedNode == null) {
 145             return 0;
 146         }
 147         final AtomicInteger count = new AtomicInteger();
 148         new NormalizedNodeNavigator((level, parentPath, normalizedNode1) -> {
 149             if (!(normalizedNode1.getIdentifier() instanceof AugmentationIdentifier)) {
 150                 if (normalizedNode1.getIdentifier().getNodeType().getNamespace().toString().contains(namespaceFilter)) {
 151                     count.incrementAndGet();
 152                 }
 153             }
 154         }).navigate(YangInstanceIdentifier.EMPTY.toString(), normalizedNode);
 155
 156         return count.get();
 157     }
 158
 159     @Test
 160     public void testLeafNodeNotPrunedWhenHasNoParent() throws IOException {
 161         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.DESC_QNAME));
 162         NormalizedNode<?, ?> input = Builders.leafBuilder().withNodeIdentifier(
 163                 new NodeIdentifier(TestModel.DESC_QNAME)).withValue("test").build();
 164         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 165
 166         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 167         assertEquals("normalizedNode", input, actual);
 168     }
 169
 170     @Test
 171     public void testLeafNodePrunedWhenHasAugmentationParentAndSchemaMissing() throws IOException {
 172         AugmentationIdentifier augId = new AugmentationIdentifier(Sets.newHashSet(TestModel.AUG_CONT_QNAME));
 173         NormalizedNodePruner pruner = prunerFullSchema(YangInstanceIdentifier.builder()
 174                 .node(TestModel.TEST_QNAME).node(TestModel.AUGMENTED_LIST_QNAME)
 175                         .node(TestModel.AUGMENTED_LIST_QNAME).node(augId).build());
 176         LeafNode<Object> child = Builders.leafBuilder().withNodeIdentifier(
 177                 new NodeIdentifier(TestModel.INVALID_QNAME)).withValue("test").build();
 178         NormalizedNode<?, ?> input = Builders.augmentationBuilder().withNodeIdentifier(augId).withChild(child).build();
 179         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 180
 181         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 182         assertEquals("normalizedNode", Builders.augmentationBuilder().withNodeIdentifier(augId).build(), actual);
 183     }
 184
 185     @Test
 186     public void testLeafNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 187         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 188         NormalizedNode<?, ?> input = Builders.leafBuilder().withNodeIdentifier(
 189                 new NodeIdentifier(TestModel.INVALID_QNAME)).withValue("test").build();
 190         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 191
 192         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 193         assertNull(actual);
 194     }
 195
 196
 197     @Test
 198     public void testLeafSetEntryNodeNotPrunedWhenHasNoParent() throws IOException {
 199         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.SHOE_QNAME));
 200         NormalizedNode<?, ?> input = Builders.leafSetEntryBuilder().withValue("puma").withNodeIdentifier(
 201                 new NodeWithValue<>(TestModel.SHOE_QNAME, "puma")).build();
 202         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 203
 204         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 205         assertEquals("normalizedNode", input, actual);
 206     }
 207
 208     @Test
 209     public void testLeafSetEntryNodeNotPrunedWhenHasParent() throws IOException {
 210         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.SHOE_QNAME));
 211         LeafSetEntryNode<Object> child = Builders.leafSetEntryBuilder().withValue("puma").withNodeIdentifier(
 212                 new NodeWithValue<>(TestModel.SHOE_QNAME, "puma")).build();
 213         NormalizedNode<?, ?> input = Builders.leafSetBuilder().withNodeIdentifier(
 214                 new NodeIdentifier(TestModel.SHOE_QNAME)).withChild(child).build();
 215         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 216
 217         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 218         assertEquals("normalizedNode", input, actual);
 219     }
 220
 221     @Test
 222     public void testLeafSetEntryNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 223         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 224         NormalizedNode<?, ?> input = Builders.leafSetEntryBuilder().withValue("test").withNodeIdentifier(
 225                 new NodeWithValue<>(TestModel.INVALID_QNAME, "test")).build();
 226         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 227
 228         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 229         assertNull(actual);
 230     }
 231
 232     @Test
 233     public void testLeafSetEntryNodePrunedWhenHasParentAndSchemaMissing() throws IOException {
 234         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 235         LeafSetEntryNode<Object> child = Builders.leafSetEntryBuilder().withValue("test").withNodeIdentifier(
 236                 new NodeWithValue<>(TestModel.INVALID_QNAME, "test")).build();
 237         NormalizedNode<?, ?> input = Builders.leafSetBuilder().withNodeIdentifier(
 238                 new NodeIdentifier(TestModel.INVALID_QNAME)).withChild(child).build();
 239         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 240
 241         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 242         assertNull(actual);
 243     }
 244
 245     @Test
 246     public void testAnyXMLNodeNotPrunedWhenHasNoParent() throws IOException {
 247         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.ANY_XML_QNAME));
 248         NormalizedNode<?, ?> input = Builders.anyXmlBuilder().withNodeIdentifier(
 249                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 250         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 251
 252         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 253         assertEquals("normalizedNode", input, actual);
 254     }
 255
 256
 257     @Test
 258     public void testAnyXMLNodeNotPrunedWhenHasParent() throws IOException {
 259         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
 260         AnyXmlNode child = Builders.anyXmlBuilder().withNodeIdentifier(
 261                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 262         NormalizedNode<?, ?> input = Builders.containerBuilder().withNodeIdentifier(
 263                 new NodeIdentifier(TestModel.TEST_QNAME)).withChild(child).build();
 264         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 265
 266         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 267         assertEquals("normalizedNode", input, actual);
 268     }
 269
 270     @Test
 271     public void testAnyXmlNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 272         NormalizedNodePruner pruner = prunerNoTestSchema(TestModel.TEST_PATH.node(TestModel.ANY_XML_QNAME));
 273         NormalizedNode<?, ?> input = Builders.anyXmlBuilder().withNodeIdentifier(
 274                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 275         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 276
 277         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 278         assertNull(actual);
 279     }
 280
 281     @Test
 282     public void testInnerContainerNodeWithFullPathPathNotPruned() throws IOException {
 283         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 284                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 285                 .node(TestModel.INNER_LIST_QNAME).nodeWithKey(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one")
 286                 .node(TestModel.INNER_CONTAINER_QNAME).build();
 287         NormalizedNodePruner pruner = prunerFullSchema(path);
 288
 289         NormalizedNode<?, ?> input = ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME);
 290         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 291
 292         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 293         assertEquals("normalizedNode", input, actual);
 294     }
 295
 296     @Test
 297     public void testInnerContainerNodeWithFullPathPrunedWhenSchemaMissing() throws IOException {
 298         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 299                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 300                 .node(TestModel.INNER_LIST_QNAME).nodeWithKey(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one")
 301                 .node(TestModel.INVALID_QNAME).build();
 302         NormalizedNodePruner pruner = prunerFullSchema(path);
 303
 304         NormalizedNode<?, ?> input = ImmutableNodes.containerNode(TestModel.INVALID_QNAME);
 305         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 306
 307         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 308         assertNull(actual);
 309     }
 310
 311     @Test
 312     public void testInnerContainerNodeWithParentPathPrunedWhenSchemaMissing() throws IOException {
 313         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 314                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 315                 .build();
 316         NormalizedNodePruner pruner = prunerFullSchema(path);
 317
 318         MapNode innerList = mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 319                 TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").withChild(
 320                         ImmutableNodes.containerNode(TestModel.INVALID_QNAME)).build()).build();
 321         NormalizedNode<?, ?> input = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 322                 .withChild(innerList).build();
 323         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 324
 325         NormalizedNode<?, ?> expected = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 326                 .withChild(mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 327                     TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").build()).build()).build();
 328         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 329         assertEquals("normalizedNode", expected, actual);
 330     }
 331
 332     @Test
 333     public void testInnerListNodeWithFullPathNotPruned() throws IOException {
 334         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 335                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 336                 .node(TestModel.INNER_LIST_QNAME).build();
 337         NormalizedNodePruner pruner = prunerFullSchema(path);
 338
 339         MapNode input = mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 340                 TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").withChild(
 341                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 342         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 343
 344         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 345         assertEquals("normalizedNode", input, actual);
 346     }
 347
 348     @Test
 349     public void testInnerListNodeWithFullPathPrunedWhenSchemaMissing() throws IOException {
 350         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 351                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 352                 .node(TestModel.INVALID_QNAME).build();
 353         NormalizedNodePruner pruner = prunerFullSchema(path);
 354
 355         MapNode input = mapNodeBuilder(TestModel.INVALID_QNAME).withChild(mapEntryBuilder(
 356                 TestModel.INVALID_QNAME, TestModel.NAME_QNAME, "one").withChild(
 357                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 358         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 359
 360         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 361         assertNull(actual);
 362     }
 363
 364     @Test
 365     public void testInnerListNodeWithParentPathPrunedWhenSchemaMissing() throws IOException {
 366         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME)
 367                 .node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 368                 .build();
 369         NormalizedNodePruner pruner = prunerFullSchema(path);
 370
 371         MapNode innerList = mapNodeBuilder(TestModel.INVALID_QNAME).withChild(mapEntryBuilder(
 372                 TestModel.INVALID_QNAME, TestModel.NAME_QNAME, "one").withChild(
 373                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 374         NormalizedNode<?, ?> input = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1)
 375                 .withChild(innerList).build();
 376         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 377
 378         NormalizedNode<?, ?> expected = mapEntry(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1);
 379         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 380         assertEquals("normalizedNode", expected, actual);
 381     }
 382
 383     private static NormalizedNode<?, ?> createTestContainer() {
 384         byte[] bytes1 = {1,2,3};
 385         LeafSetEntryNode<Object> entry1 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 386                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, bytes1)).withValue(bytes1).build();
 387
 388         byte[] bytes2 = {};
 389         LeafSetEntryNode<Object> entry2 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 390                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, bytes2)).withValue(bytes2).build();
 391
 392         LeafSetEntryNode<Object> entry3 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 393                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, null)).withValue(null).build();
 394
 395
 396         return TestModel.createBaseTestContainerBuilder()
 397                 .withChild(ImmutableLeafSetNodeBuilder.create().withNodeIdentifier(
 398                         new NodeIdentifier(TestModel.BINARY_LEAF_LIST_QNAME))
 399                         .withChild(entry1).withChild(entry2).withChild(entry3).build())
 400                 .withChild(ImmutableNodes.leafNode(TestModel.SOME_BINARY_DATA_QNAME, new byte[]{1, 2, 3, 4}))
 401                 .build();
 402     }
 403 }