Examples of org.apache.commons.configuration2.tree.ReferenceNodeHandler

Package org.apache.commons.configuration2.tree

Examples of org.apache.commons.configuration2.tree.ReferenceNodeHandler

org.apache.commons.configuration2.tree.OverrideCombiner

An extension of the {@link NodeHandler} interface which allows access toso-called references stored for a node.

Some specialized configuration implementations needs to store additional data for the nodes representing configuration properties. This interface provides methods for querying this data. For instance, it is possible to query a reference object stored for a specific node.

{@link InMemoryNodeModel} supports references. It can be queried for a{@code ReferenceNodeHandler} which can then be used for dealing withreferences.
@version $Id: ReferenceNodeHandler.java 1624601 2014-09-12 18:04:36Z oheger $ @since 2.0

         *
         * @return the transformed root node
         */
        public ImmutableNode getTransformedRoot()
        {
            ImmutableNode configRoot = getRootNodeOfConfiguration();
            return (atPath == null) ? configRoot : prependAtPath(configRoot);
        }

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        private ImmutableNode getRootNodeOfConfiguration()
        {
            getConfiguration().lock(LockMode.READ);
            try
            {
                ImmutableNode root =
                        ConfigurationUtils
                                .convertToHierarchical(getConfiguration(),
                                        conversionExpressionEngine).getNodeModel()
                                .getInMemoryRepresentation();
                rootNode = root;

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     * @param selector the selector
     * @return the tracked model
     */
    private TrackedNodeModel setUpTrackedModel(NodeSelector selector)
    {
        InMemoryNodeModel parentModel = (InMemoryNodeModel) parent.getModel();
        parentModel.trackNode(selector, parent);
        return new TrackedNodeModel(parent, selector, true);
    }

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        setUpSubnodeConfig();
        SubnodeConfiguration copy = (SubnodeConfiguration) config.clone();
        assertNotSame("Same model", config.getModel(), copy.getModel());
        TrackedNodeModel subModel = (TrackedNodeModel) copy.getModel();
        assertEquals("Wrong selector", SELECTOR, subModel.getSelector());
        InMemoryNodeModel parentModel = (InMemoryNodeModel) parent.getModel();
        assertEquals("Wrong parent model", parentModel,
                subModel.getParentModel());


        // Check whether the track count was increased
        parentModel.untrackNode(SELECTOR);
        parentModel.untrackNode(SELECTOR);
        assertTrue("Wrong finalize flag",
                subModel.isReleaseTrackedNodeOnFinalize());
    }

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            }
            catch (ConfigurationRuntimeException iex)
            {
                // the passed in key does not map to exactly one node
                // obtain the node for the section, create it on demand
                InMemoryNodeModel parentModel = getSubConfigurationParentModel();
                NodeSelector selector = parentModel.trackChildNodeWithCreation(null, name, this);
                return createSubConfigurationForTrackedNode(selector, this);
            }
        }
    }

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     *
     * @return the sub configuration for the global section
     */
    private SubnodeConfiguration getGlobalSection()
    {
        InMemoryNodeModel parentModel = getSubConfigurationParentModel();
        NodeSelector selector = new NodeSelector(null); // selects parent
        parentModel.trackNode(selector, this);
        GlobalSectionNodeModel model =
                new GlobalSectionNodeModel(this, selector);
        SubnodeConfiguration sub = new SubnodeConfiguration(this, model);
        initSubConfigurationForThisParent(sub);
        return sub;

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     * Tests if setting a node combiner causes an invalidation.
     */
    @Test
    public void testSetNodeCombiner()
    {
        NodeCombiner combiner = new UnionCombiner();
        config.setNodeCombiner(combiner);
        assertSame("Node combiner was not set", combiner, config
                .getNodeCombiner());
        listener.checkEvent(1, 0);
    }

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            catch (ConfigurationRuntimeException iex)
            {
                // the passed in key does not map to exactly one node
                // obtain the node for the section, create it on demand
                InMemoryNodeModel parentModel = getSubConfigurationParentModel();
                NodeSelector selector = parentModel.trackChildNodeWithCreation(null, name, this);
                return createSubConfigurationForTrackedNode(selector, this);
            }
        }
    }

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     * @return the sub configuration for the global section
     */
    private SubnodeConfiguration getGlobalSection()
    {
        InMemoryNodeModel parentModel = getSubConfigurationParentModel();
        NodeSelector selector = new NodeSelector(null); // selects parent
        parentModel.trackNode(selector, this);
        GlobalSectionNodeModel model =
                new GlobalSectionNodeModel(this, selector);
        SubnodeConfiguration sub = new SubnodeConfiguration(this, model);
        initSubConfigurationForThisParent(sub);

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        x1.addProperty("key2", "value2");
        x1.addProperty("key2[@override]", "USER2");
        XMLConfiguration x2 = new XMLConfiguration();
        x2.addProperty("key2", "value2.2");
        x2.addProperty("key2[@override]", "USER2");
        config.setNodeCombiner(new OverrideCombiner());
        config.addConfiguration(x2);
        config.addConfiguration(x1);
        XMLConfiguration x3 = new XMLConfiguration(config);
        assertEquals("Wrong element value", "value2.2", x3.getString("key2"));
        assertEquals("Wrong attribute value", "USER2",

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