yang/yang-data-impl/src/test/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/DataTreeCandidatesTest.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.yangtools.yang.data.impl.schema.tree;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.fail;
  12
  13 import org.junit.Before;
  14 import org.junit.Test;
  15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  16 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  17 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  18 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  19 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  20 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidates;
  21 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
  22 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  23 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModificationCursor;
  24 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
  25 import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
  26 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  27 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
  28 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class DataTreeCandidatesTest extends AbstractTestModelTest {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(DataTreeCandidatesTest.class);
  35
  36     private DataTree dataTree;
  37
  38     @Before
  39     public void setUp() throws Exception {
  40         dataTree = new InMemoryDataTreeFactory().create(DataTreeConfiguration.DEFAULT_OPERATIONAL, SCHEMA_CONTEXT);
  41
  42         final ContainerNode testContainer = ImmutableContainerNodeBuilder.create()
  43                 .withNodeIdentifier(new NodeIdentifier(TestModel.TEST_QNAME))
  44                 .withChild(ImmutableContainerNodeBuilder.create()
  45                         .withNodeIdentifier(new NodeIdentifier(SchemaContext.NAME))
  46                         .build())
  47                 .build();
  48
  49         final InMemoryDataTreeModification modification = (InMemoryDataTreeModification) dataTree.takeSnapshot()
  50                 .newModification();
  51         final DataTreeModificationCursor cursor = modification.openCursor();
  52         cursor.write(TestModel.TEST_PATH.getLastPathArgument(), testContainer);
  53         modification.ready();
  54
  55         dataTree.validate(modification);
  56         final DataTreeCandidate candidate = dataTree.prepare(modification);
  57         dataTree.commit(candidate);
  58     }
  59
  60     @Test
  61     public void testRootedCandidate() throws DataValidationFailedException {
  62         final DataTree innerDataTree = new InMemoryDataTreeFactory().create(
  63             new DataTreeConfiguration.Builder(TreeType.OPERATIONAL)
  64             .setMandatoryNodesValidation(true)
  65             .setRootPath(TestModel.INNER_CONTAINER_PATH)
  66             .setUniqueIndexes(true).build(), SCHEMA_CONTEXT);
  67
  68         final LeafNode<String> leaf = ImmutableLeafNodeBuilder.<String>create()
  69                 .withNodeIdentifier(new NodeIdentifier(TestModel.VALUE_QNAME))
  70                 .withValue("testing-value")
  71                 .build();
  72
  73         final InMemoryDataTreeModification modification = (InMemoryDataTreeModification) innerDataTree.takeSnapshot()
  74                 .newModification();
  75         modification.write(TestModel.VALUE_PATH, leaf);
  76
  77         modification.ready();
  78         dataTree.validate(modification);
  79         final DataTreeCandidate candidate = dataTree.prepare(modification);
  80         dataTree.commit(candidate);
  81
  82         final DataTreeModification newModification = dataTree.takeSnapshot().newModification();
  83         final DataTreeCandidate newCandidate = DataTreeCandidates.newDataTreeCandidate(TestModel.INNER_CONTAINER_PATH,
  84             candidate.getRootNode());
  85
  86         try {
  87             // lets see if getting the identifier of the root node throws an exception
  88             newCandidate.getRootNode().getIdentifier();
  89             fail();
  90         } catch (IllegalStateException e) {
  91             LOG.debug("Cannot get identifier of root node candidate which is correct", e);
  92         }
  93
  94         // lets see if we can apply this rooted candidate to a new dataTree
  95         DataTreeCandidates.applyToModification(newModification,
  96                 newCandidate);
  97
  98         final LeafNode<?> readLeaf = (LeafNode<?>) newModification.readNode(TestModel.INNER_VALUE_PATH).get();
  99         assertEquals(readLeaf, leaf);
 100     }
 101 }