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