CreateEdgeCommand.java

package org.orienteer.graph.component.command;

import com.orientechnologies.orient.core.metadata.schema.OClass;
import com.orientechnologies.orient.core.record.impl.ODocument;
import com.tinkerpop.blueprints.impls.orient.OrientGraph;
import com.tinkerpop.blueprints.impls.orient.OrientGraphFactory;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.ResourceModel;
import org.orienteer.core.component.BootstrapType;
import org.orienteer.core.component.FAIconType;
import org.orienteer.core.component.command.AbstractModalWindowCommand;
import org.orienteer.core.component.command.Command;
import org.orienteer.core.component.command.modal.SelectDialogPanel;
import org.orienteer.core.component.command.modal.SelectSubOClassDialogPage;
import org.orienteer.core.component.property.DisplayMode;
import org.orienteer.core.component.table.OrienteerDataTable;
import org.orienteer.core.web.ODocumentPage;
import org.orienteer.graph.module.GraphModule;

import ru.ydn.wicket.wicketorientdb.model.OClassModel;
import ru.ydn.wicket.wicketorientdb.security.ISecuredComponent;
import ru.ydn.wicket.wicketorientdb.security.OSecurityHelper;
import ru.ydn.wicket.wicketorientdb.security.OrientPermission;
import ru.ydn.wicket.wicketorientdb.security.RequiredOrientResource;

import java.util.List;

/**
 * {@link Command} to create graph edge between {@link ODocument}s.
 */
public class CreateEdgeCommand extends AbstractModalWindowCommand<ODocument> implements ISecuredComponent {

    private IModel<OClass> classModel;
    private IModel<ODocument> documentModel;

    public CreateEdgeCommand(OrienteerDataTable<ODocument, ?> table, IModel<ODocument> documentIModel) {
    	this(new ResourceModel("command.link"),table,documentIModel);
    }

    public CreateEdgeCommand(IModel<?> labelModel,OrienteerDataTable<ODocument, ?> table, IModel<ODocument> documentIModel) {
        super(labelModel, table);
        setBootstrapType(BootstrapType.SUCCESS);
        setIcon(FAIconType.plus);
        setAutoNotify(false);
        this.classModel = new OClassModel(GraphModule.VERTEX_CLASS_NAME);
        this.documentModel = documentIModel;
    }

    @Override
    protected void initializeContent(final ModalWindow modal) {
        modal.setTitle(new ResourceModel("dialog.select.edge.class"));
        modal.setAutoSize(true);
        modal.setMinimalWidth(300);
        SelectSubOClassDialogPage selectEdgeClassDialog = new SelectSubOClassDialogPage(modal, new OClassModel(GraphModule.EDGE_CLASS_NAME)) {

            @Override
            protected void onSelect(AjaxRequestTarget target, final OClass selectedOClass) {
                modal.setTitle(new ResourceModel("dialog.select.vertices"));

                OClassModel vertexOClassModel = new OClassModel(GraphModule.VERTEX_CLASS_NAME);
                modal.setContent(new SelectDialogPanel(modal.getContentId(), modal, vertexOClassModel, true) {
                    @Override
                    protected boolean onSelect(AjaxRequestTarget target, List<ODocument> objects, boolean selectMore) {
                        createEdge(objects, selectedOClass);

                        modal.setWindowClosedCallback(new ModalWindow.WindowClosedCallback()
                        {
                            private static final long serialVersionUID = 1L;

                            @Override
                            public void onClose(AjaxRequestTarget target)
                            {
                                target.add(getPage());
                            }
                        });
                        return true;
                    }
                });

                modal.show(target);
            }
        };
        modal.setContent(selectEdgeClassDialog);
    }



    @Override
    public RequiredOrientResource[] getRequiredResources() {
        return OSecurityHelper.requireOClass(classModel.getObject(), OrientPermission.CREATE);
    }

    private void createEdge(List<ODocument> documents, OClass edgeClass) {
        OrientGraph tx = null;
        try {
            tx = new OrientGraphFactory(getDatabase().getURL()).getTx();
            for (ODocument createTo : documents) {
                tx.addEdge(null, tx.getVertex(documentModel.getObject().getIdentity()), tx.getVertex(createTo.getIdentity()), edgeClass.getName());
            }

        }
        finally {
            if (tx != null)
                tx.shutdown();
        }
    }
}