Examples of org.gephi.graph.api.HierarchicalGraph

org.gephi.graph.api.HierarchicalGraph
Implementation of graphs within graphs concept, by proposing methods to manipulate the hierarchy of nodes.
The hierarchical graph maintains a tree of all nodes, it's the hierarchy and a in-view flag for each. Note that 'view' means something else than for GraphView.
A node in the hierarchy view means it is visible and none of its ancestors or descendants are. If this node is expanded, it's children become 'in-view'. If it is retracted, its parent becomes 'in-view'. The hierarchy view can be modified with expand(), retract(), resetViewToLeaves(), resetViewToTopNodes() and resetViewToLevel(). Note that the nodes and edges returns by getNodes() or getEdges() use only nodes in the current view. To get all nodes in the hierarchy, see getNodesTree(). @author Mathieu Bastian @see GraphModel

     *
     * @param graphModel
     * @param attributeModel
     */
    public void execute(GraphModel graphModel, AttributeModel attributeModel) {
        HierarchicalGraph graph = null;
        if (isDirected) {
            graph = graphModel.getHierarchicalDirectedGraphVisible();
        } else {
            graph = graphModel.getHierarchicalUndirectedGraphVisible();
        }

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    private static final String ELEMENT_VALUE = "attvalue";


    public void writeRows(XMLStreamWriter writer, GraphModel graphModel) throws XMLStreamException {
        writer.writeStartElement(ELEMENT_ROWS);


        HierarchicalGraph hierarchicalGraph = graphModel.getHierarchicalGraph();
        for (Node node : hierarchicalGraph.getNodesTree()) {
            if (node.getNodeData().getAttributes() != null && node.getNodeData().getAttributes() instanceof AttributeRowImpl) {
                AttributeRowImpl row = (AttributeRowImpl) node.getNodeData().getAttributes();
                writer.writeStartElement(ELEMENT_NODE_ROW);
                writer.writeAttribute("for", String.valueOf(node.getId()));
                if (writeRow(writer, row)) {
                    writer.writeEndElement();
                }
            }
        }


        for (Node node : hierarchicalGraph.getNodesTree()) {
            for (Edge edge : hierarchicalGraph.getEdges(node)) {
                if (edge.getEdgeData().getAttributes() != null && edge.getEdgeData().getAttributes() instanceof AttributeRowImpl) {
                    AttributeRowImpl row = (AttributeRowImpl) edge.getEdgeData().getAttributes();
                    writer.writeStartElement(ELEMENT_EDGE_ROW);
                    writer.writeAttribute("for", String.valueOf(edge.getId()));
                    if (writeRow(writer, row)) {

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        writer.writeEndElement();
    }


    public void readRows(XMLStreamReader reader, GraphModel graphModel, AbstractAttributeModel attributeModel) throws XMLStreamException {
        HierarchicalGraph hierarchicalGraph = graphModel.getHierarchicalGraph();


        boolean end = false;
        while (reader.hasNext() && !end) {
            int type = reader.next();


            switch (type) {
                case XMLStreamReader.START_ELEMENT:
                    String name = reader.getLocalName();
                    if (ELEMENT_NODE_ROW.equalsIgnoreCase(name)) {
                        int id = Integer.parseInt(reader.getAttributeValue(null, "for"));
                        Node node = hierarchicalGraph.getNode(id);
                        if (node.getNodeData().getAttributes() != null && node.getNodeData().getAttributes() instanceof AttributeRowImpl) {
                            AttributeRowImpl row = (AttributeRowImpl) node.getNodeData().getAttributes();
                            readRow(reader, attributeModel, attributeModel.getNodeTable(), row);
                        }
                    } else if (ELEMENT_EDGE_ROW.equalsIgnoreCase(name)) {
                        int id = Integer.parseInt(reader.getAttributeValue(null, "for"));
                        Edge edge = hierarchicalGraph.getEdge(id);
                        if (edge.getEdgeData().getAttributes() != null && edge.getEdgeData().getAttributes() instanceof AttributeRowImpl) {
                            AttributeRowImpl row = (AttributeRowImpl) edge.getEdgeData().getAttributes();
                            readRow(reader, attributeModel, attributeModel.getEdgeTable(), row);
                        }
                    }

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         * Sets nodesToSearch as all nodes in the graph if they are null or empty array.
         * Also only search on visible view if data table is showing visible only.
         */
        private void checkNodesToSearch() {
            if (nodesToSearch == null || nodesToSearch.length == 0) {
                HierarchicalGraph hg;
                if (Lookup.getDefault().lookup(DataTablesController.class).isShowOnlyVisible()) {
                    hg = Lookup.getDefault().lookup(GraphController.class).getModel().getHierarchicalGraphVisible();
                } else {
                    hg = Lookup.getDefault().lookup(GraphController.class).getModel().getHierarchicalGraph();
                }
                nodesToSearch = hg.getNodesTree().toArray();
            }
        }

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         * Sets edgesToSearch as all edges in the graph if they are null or empty array.
         * Also only search on visible view if data table is showing visible only.
         */
        private void checkEdgesToSearch() {
            if (edgesToSearch == null || edgesToSearch.length == 0) {
                HierarchicalGraph hg;
                if (Lookup.getDefault().lookup(DataTablesController.class).isShowOnlyVisible()) {
                    hg = Lookup.getDefault().lookup(GraphController.class).getModel().getHierarchicalGraphVisible();
                } else {
                    hg = Lookup.getDefault().lookup(GraphController.class).getModel().getHierarchicalGraph();
                }
                edgesToSearch = hg.getEdges().toArray();
            }
        }

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    private static final String ELEMENT_VALUE = "attvalue";


    public void writeRows(XMLStreamWriter writer, GraphModel graphModel) throws XMLStreamException {
        writer.writeStartElement(ELEMENT_ROWS);


        HierarchicalGraph hierarchicalGraph = graphModel.getHierarchicalGraph();
        for (Node node : hierarchicalGraph.getNodesTree()) {
            if (node.getNodeData().getAttributes() != null && node.getNodeData().getAttributes() instanceof AttributeRowImpl) {
                AttributeRowImpl row = (AttributeRowImpl) node.getNodeData().getAttributes();
                writer.writeStartElement(ELEMENT_NODE_ROW);
                writer.writeAttribute("for", String.valueOf(node.getId()));
                if (writeRow(writer, row)) {
                    writer.writeEndElement();
                }
            }
        }


        for (Edge edge : hierarchicalGraph.getEdges()) {
            if (edge.getEdgeData().getAttributes() != null && edge.getEdgeData().getAttributes() instanceof AttributeRowImpl) {
                AttributeRowImpl row = (AttributeRowImpl) edge.getEdgeData().getAttributes();
                writer.writeStartElement(ELEMENT_EDGE_ROW);
                writer.writeAttribute("for", String.valueOf(edge.getId()));
                if (writeRow(writer, row)) {

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        writer.writeEndElement();
    }


    public void readRows(XMLStreamReader reader, GraphModel graphModel, AbstractAttributeModel attributeModel) throws XMLStreamException {
        HierarchicalGraph hierarchicalGraph = graphModel.getHierarchicalGraph();


        boolean end = false;
        while (reader.hasNext() && !end) {
            int type = reader.next();


            switch (type) {
                case XMLStreamReader.START_ELEMENT:
                    String name = reader.getLocalName();
                    if (ELEMENT_NODE_ROW.equalsIgnoreCase(name)) {
                        int id = Integer.parseInt(reader.getAttributeValue(null, "for"));
                        Node node = hierarchicalGraph.getNode(id);
                        if (node.getNodeData().getAttributes() != null && node.getNodeData().getAttributes() instanceof AttributeRowImpl) {
                            AttributeRowImpl row = (AttributeRowImpl) node.getNodeData().getAttributes();
                            readRow(reader, attributeModel, attributeModel.getNodeTable(), row);
                        }
                    } else if (ELEMENT_EDGE_ROW.equalsIgnoreCase(name)) {
                        int id = Integer.parseInt(reader.getAttributeValue(null, "for"));
                        Edge edge = hierarchicalGraph.getEdge(id);
                        if (edge.getEdgeData().getAttributes() != null && edge.getEdgeData().getAttributes() instanceof AttributeRowImpl) {
                            AttributeRowImpl row = (AttributeRowImpl) edge.getEdgeData().getAttributes();
                            readRow(reader, attributeModel, attributeModel.getEdgeTable(), row);
                        }
                    }

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            //Add property
            addProperty(Range.class, "range");
        }


        public boolean init(Graph graph) {
            HierarchicalGraph hg = (HierarchicalGraph) graph;
            this.partition = Lookup.getDefault().lookup(PartitionController.class).buildPartition(partition.getColumn(), hg);
            if (partition.getParts().length > 0) {
                return true;
            }
            return false;

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        public String getName() {
            return NbBundle.getMessage(PartitionBuilder.class, "PartitionBuilder.name") + " (" + partition.getColumn().getTitle() + ")";
        }


        public boolean init(Graph graph) {
            HierarchicalGraph hg = (HierarchicalGraph) graph;
            this.partition = Lookup.getDefault().lookup(PartitionController.class).buildPartition(partition.getColumn(), hg);
            return true;
        }

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        public boolean init(Graph graph) {
            return true;
        }


        public Graph filter(Graph graph) {
            HierarchicalGraph hierarchicalGraph = (HierarchicalGraph) graph;
            hierarchicalGraph.flatten();
            return hierarchicalGraph;
        }

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