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
   9 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.fail;
  13
  14 import org.junit.Before;
  15 import org.junit.Test;
  16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  18 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  19 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  20 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  21 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  22 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidates;
  23 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
  24 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  25 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModificationCursor;
  26 import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
  27 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  28 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
  29 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class DataTreeCandidatesTest {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(DataTreeCandidates.class);
  36
  37     private static final SchemaContext SCHEMA_CONTEXT = TestModel.createTestContext();
  38
  39     private DataTree dataTree;
  40
  41     @Before
  42     public void setUp() throws Exception {
  43         dataTree = InMemoryDataTreeFactory.getInstance().create(DataTreeConfiguration.DEFAULT_OPERATIONAL);
  44         dataTree.setSchemaContext(SCHEMA_CONTEXT);
  45
  46         final ContainerNode testContainer = ImmutableContainerNodeBuilder.create()
  47                 .withNodeIdentifier(new NodeIdentifier(TestModel.TEST_QNAME))
  48                 .withChild(ImmutableContainerNodeBuilder.create()
  49                         .withNodeIdentifier(new NodeIdentifier(SchemaContext.NAME))
  50                         .build())
  51                 .build();
  52
  53         final InMemoryDataTreeModification modification = (InMemoryDataTreeModification) dataTree.takeSnapshot()
  54                 .newModification();
  55         final DataTreeModificationCursor cursor = modification.createCursor(YangInstanceIdentifier.EMPTY);
  56         cursor.write(TestModel.TEST_PATH.getLastPathArgument(), testContainer);
  57         modification.ready();
  58
  59         dataTree.validate(modification);
  60         final DataTreeCandidate candidate = dataTree.prepare(modification);
  61         dataTree.commit(candidate);
  62     }
  63
  64     @Test
  65     public void testRootedCandidate() throws Exception {
  66         final DataTree innerDataTree = InMemoryDataTreeFactory.getInstance().create(TreeType.OPERATIONAL,
  67             TestModel.INNER_CONTAINER_PATH);
  68         innerDataTree.setSchemaContext(SCHEMA_CONTEXT);
  69
  70         final LeafNode<String> leaf = ImmutableLeafNodeBuilder.<String>create()
  71                 .withNodeIdentifier(new NodeIdentifier(TestModel.VALUE_QNAME))
  72                 .withValue("testing-value")
  73                 .build();
  74
  75         final InMemoryDataTreeModification modification = (InMemoryDataTreeModification) innerDataTree.takeSnapshot()
  76                 .newModification();
  77         modification.write(TestModel.VALUE_PATH, leaf);
  78
  79         modification.ready();
  80         dataTree.validate(modification);
  81         final DataTreeCandidate candidate = dataTree.prepare(modification);
  82         dataTree.commit(candidate);
  83
  84         final DataTreeModification newModification = dataTree.takeSnapshot().newModification();
  85         final DataTreeCandidate newCandidate = DataTreeCandidates.newDataTreeCandidate(TestModel.INNER_CONTAINER_PATH,
  86             candidate.getRootNode());
  87
  88         try {
  89             // lets see if getting the identifier of the root node throws an exception
  90             newCandidate.getRootNode().getIdentifier();
  91             fail();
  92         } catch (IllegalStateException e) {
  93             LOG.debug("Cannot get identifier of root node candidate which is correct", e);
  94         }
  95
  96         // lets see if we can apply this rooted candidate to a new dataTree
  97         DataTreeCandidates.applyToModification(newModification,
  98                 newCandidate);
  99
 100         final LeafNode<?> readLeaf = (LeafNode<?>) newModification.readNode(TestModel.INNER_VALUE_PATH).get();
 101         assertEquals(readLeaf, leaf);
 102     }
 103 }