Examples with WorkflowPortBar org.knime.workbench.editor2.model.WorkflowPortBar used on opensource projects

Example 1 with WorkflowPortBar

use of org.knime.workbench.editor2.model.WorkflowPortBar in project knime-core by knime.

the class WorkflowInPortBarEditPart method createFigure.

/**
 * {@inheritDoc}
 */
@Override
protected IFigure createFigure() {
    NodeUIInformation uiInfo = ((WorkflowPortBar) getModel()).getUIInfo();
    if (uiInfo != null) {
        int[] bounds = uiInfo.getBounds();
        Rectangle newBounds = new Rectangle(bounds[0], bounds[1], bounds[2], bounds[3]);
        return new WorkflowInPortBarFigure(newBounds);
    } else {
        return new WorkflowInPortBarFigure(getMinMaxXcoordInWorkflow()[0]);
    }
}

Example 2 with WorkflowPortBar

use of org.knime.workbench.editor2.model.WorkflowPortBar in project knime-core by knime.

the class WorkflowOutPortBarEditPart method getModelChildren.

/**
 * {@inheritDoc}
 */
@Override
protected List<NodePortUI> getModelChildren() {
    WorkflowManagerUI manager = ((WorkflowPortBar) getModel()).getWorkflowManager();
    List<NodePortUI> ports = new ArrayList<NodePortUI>();
    for (int i = 0; i < manager.getNrWorkflowOutgoingPorts(); i++) {
        ports.add(manager.getOutPort(i));
    }
    return ports;
}

Example 3 with WorkflowPortBar

use of org.knime.workbench.editor2.model.WorkflowPortBar in project knime-core by knime.

the class WorkflowRootEditPart method getModelChildren.

/**
 * Returns the model chidlren, that is, the <code>NodeConatiner</code>s that
 * are stored in the workflow manager.
 *
 * {@inheritDoc}
 */
@Override
@SuppressWarnings("unchecked")
protected List getModelChildren() {
    List modelChildren = new ArrayList();
    WorkflowManagerUI wfm = getWorkflowManager();
    // Add them first so they appear behind everything else
    for (Annotation anno : wfm.getWorkflowAnnotations()) {
        modelChildren.add(anno);
    }
    // workflow annotations so they appear above them)
    for (NodeAnnotation nodeAnno : wfm.getNodeAnnotations()) {
        modelChildren.add(nodeAnno);
    }
    modelChildren.addAll(wfm.getNodeContainers());
    if (wfm.getNrWorkflowIncomingPorts() > 0) {
        if (m_inBar == null) {
            m_inBar = new WorkflowPortBar(wfm, true);
            NodeUIInformation uiInfo = wfm.getInPortsBarUIInfo();
            if (uiInfo != null) {
                m_inBar.setUIInfo(wfm.getInPortsBarUIInfo());
            }
        }
        modelChildren.add(m_inBar);
    }
    if (wfm.getNrWorkflowOutgoingPorts() > 0) {
        if (m_outBar == null) {
            m_outBar = new WorkflowPortBar(wfm, false);
            NodeUIInformation uiInfo = wfm.getOutPortsBarUIInfo();
            if (uiInfo != null) {
                m_outBar.setUIInfo(wfm.getOutPortsBarUIInfo());
            }
        }
        modelChildren.add(m_outBar);
    }
    return modelChildren;
}

Example 4 with WorkflowPortBar

use of org.knime.workbench.editor2.model.WorkflowPortBar in project knime-core by knime.

the class WorkflowContextMenuProvider method buildContextMenu.

/**
 * {@inheritDoc}
 */
@Override
public void buildContextMenu(final IMenuManager manager) {
    final String FLOW_VAR_PORT_GRP = "Flow Variable Ports";
    // add the groups (grouped by separators) in their order first
    manager.add(new Separator(IWorkbenchActionConstants.GROUP_APP));
    manager.add(new Separator(FLOW_VAR_PORT_GRP));
    GEFActionConstants.addStandardActionGroups(manager);
    IAction action;
    action = m_actionRegistry.getAction("cut");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("copy");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction(PasteActionContextMenu.ID);
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("undo");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("redo");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("delete");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    // Add (some) available actions from the registry to the context menu
    // manager
    // openDialog
    action = m_actionRegistry.getAction(OpenDialogAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // execute
    action = m_actionRegistry.getAction(ExecuteAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // execute and open first view
    action = m_actionRegistry.getAction(ExecuteAndOpenViewAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // cancel execution
    action = m_actionRegistry.getAction(CancelAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // show some menu items on LoopEndNodes only
    List parts = m_viewer.getSelectedEditParts();
    if (parts.size() == 1) {
        EditPart p = (EditPart) parts.get(0);
        if (p instanceof NodeContainerEditPart) {
            NodeContainerUI container = (NodeContainerUI) ((NodeContainerEditPart) p).getModel();
            if (container instanceof SingleNodeContainerUI) {
                SingleNodeContainerUI snc = (SingleNodeContainerUI) container;
                Wrapper.unwrapOptional(snc, SingleNodeContainer.class).ifPresent(sncImpl -> {
                    if (sncImpl.isModelCompatibleTo(LoopEndNode.class)) {
                        // pause loop execution
                        IAction loopAction;
                        loopAction = m_actionRegistry.getAction(PauseLoopExecutionAction.ID);
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, loopAction);
                        ((AbstractNodeAction) loopAction).update();
                        // step loop execution
                        loopAction = m_actionRegistry.getAction(StepLoopAction.ID);
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, loopAction);
                        ((AbstractNodeAction) loopAction).update();
                        // resume loop execution
                        loopAction = m_actionRegistry.getAction(ResumeLoopAction.ID);
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, loopAction);
                        ((AbstractNodeAction) loopAction).update();
                    }
                });
            }
        }
    }
    // reset
    action = m_actionRegistry.getAction(ResetAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // set name and description
    action = m_actionRegistry.getAction(SetNodeDescriptionAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // add workflow annotation
    action = m_actionRegistry.getAction(AddAnnotationAction.ID);
    AddAnnotationAction aaa = (AddAnnotationAction) action;
    aaa.setLocation(m_lastLocation.x, m_lastLocation.y);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // collapse metanodes
    action = m_actionRegistry.getAction(CollapseMetaNodeAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    action = m_actionRegistry.getAction(EncapsulateSubNodeAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // insert "select loop" if loop nodes are selected
    boolean addSelectLoop = true;
    for (Object p : parts) {
        if (!(p instanceof NodeContainerEditPart)) {
            addSelectLoop = false;
            break;
        }
        NodeContainerUI nc = ((NodeContainerEditPart) p).getNodeContainer();
        if (!(nc instanceof SingleNodeContainerUI)) {
            addSelectLoop = false;
            break;
        }
        if (!((SingleNodeContainerUI) nc).isMemberOfScope()) {
            addSelectLoop = false;
            break;
        }
    }
    if (addSelectLoop) {
        action = m_actionRegistry.getAction(SelectLoopAction.ID);
        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
        ((AbstractNodeAction) action).update();
    }
    IMenuManager metanodeMenuMgr = null;
    IMenuManager subnodeMenuMgr = null;
    IMenuManager subnodeViewMgr = null;
    // depending on the current selection: add the actions for the port
    // views and the node views
    // also check whether this node part is a meta-node
    // if so offer the "edit meta-node" option
    // all these feature are only offered if exactly 1 part is selected
    parts = m_viewer.getSelectedEditParts();
    // by now, we only support one part...
    if (parts.size() == 1) {
        EditPart p = (EditPart) parts.get(0);
        if (p instanceof WorkflowInPortBarEditPart) {
            WorkflowInPortBarEditPart root = (WorkflowInPortBarEditPart) p;
            manager.add(new Separator("outPortViews"));
            for (Object o : p.getChildren()) {
                EditPart child = (EditPart) o;
                if (child instanceof WorkflowInPortEditPart && ((WorkflowInPortEditPart) child).isSelected()) {
                    final WorkflowManager wm = Wrapper.unwrapWFM(((WorkflowPortBar) root.getModel()).getWorkflowManager());
                    action = new OpenWorkflowPortViewAction(wm, ((WorkflowInPortEditPart) child).getIndex(), wm.getNrInPorts());
                    manager.appendToGroup("outPortViews", action);
                    ((WorkflowInPortEditPart) child).setSelected(false);
                }
            }
        }
        if (p instanceof NodeContainerEditPart) {
            NodeContainerUI container = null;
            container = (NodeContainerUI) ((NodeContainerEditPart) p).getModel();
            if (!(container instanceof WorkflowManagerUI)) {
                action = m_actionRegistry.getAction(ToggleFlowVarPortsAction.ID);
                manager.appendToGroup(FLOW_VAR_PORT_GRP, action);
                ((AbstractNodeAction) action).update();
            }
            // add for node views option if applicable
            int numNodeViews = container.getNrViews();
            for (int i = 0; i < numNodeViews; i++) {
                action = new OpenViewAction(unwrapNC(container), i);
                manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
            }
            // add interactive view options
            if (container.hasInteractiveView()) {
                action = new OpenInteractiveViewAction(unwrapNC(container));
                manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
            } else {
                // TODO for subnodes move to submenu?
                if (wraps(container, NativeNodeContainer.class)) {
                    InteractiveWebViewsResult interactiveWebViewsResult = unwrapNC(container).getInteractiveWebViews();
                    for (int i = 0; i < interactiveWebViewsResult.size(); i++) {
                        action = new OpenInteractiveWebViewAction(unwrapNC(container), interactiveWebViewsResult.get(i));
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
                    }
                }
            }
            if (container instanceof WorkflowManagerUI) {
                metanodeMenuMgr = getMetaNodeMenuManager(metanodeMenuMgr, manager);
                // OPEN META NODE
                action = new OpenSubworkflowEditorAction((NodeContainerEditPart) p);
                metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                // EXPAND META NODE
                action = m_actionRegistry.getAction(ExpandMetaNodeAction.ID);
                metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                ((AbstractNodeAction) action).update();
                // RECONFIGURE META NODE
                if (parts.size() == 1) {
                    action = m_actionRegistry.getAction(MetaNodeReconfigureAction.ID);
                    metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                    ((AbstractNodeAction) action).update();
                }
                // WRAP
                action = m_actionRegistry.getAction(ConvertMetaNodeToSubNodeAction.ID);
                metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                ((AbstractNodeAction) action).update();
            }
            // SUBNODE
            if (container instanceof SubNodeContainerUI) {
                subnodeMenuMgr = getSubNodeMenuManager(subnodeMenuMgr, manager);
                // OPEN SUBNODE
                action = new OpenSubNodeEditorAction((NodeContainerEditPart) p);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                // EXPAND SUBNODE
                action = m_actionRegistry.getAction(ExpandSubNodeAction.ID);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                ((AbstractNodeAction) action).update();
                // RECONFIGURE SUBNODE
                action = m_actionRegistry.getAction(SubNodeReconfigureAction.ID);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                ((AbstractNodeAction) action).update();
                // UNWRAP
                action = m_actionRegistry.getAction(ConvertSubNodeToMetaNodeAction.ID);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                ((AbstractNodeAction) action).update();
                if (wraps(container, SubNodeContainer.class)) {
                    InteractiveWebViewsResult interactiveWebViewsResult = unwrapNC(container).getInteractiveWebViews();
                    if (interactiveWebViewsResult.size() > 0) {
                        subnodeViewMgr = getSingleSubNodeViewsMenuManager(subnodeViewMgr, subnodeMenuMgr);
                        for (int i = 0; i < interactiveWebViewsResult.size(); i++) {
                            action = new OpenInteractiveWebViewAction(unwrapNC(container), interactiveWebViewsResult.get(i));
                            subnodeViewMgr.appendToGroup(GROUP_SUBNODE_VIEWS, action);
                        }
                    }
                    action = new OpenSubnodeWebViewAction(Wrapper.unwrap(container, SubNodeContainer.class));
                    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
                }
            }
            // add port views
            manager.add(new Separator("outPortViews"));
            int numOutPorts = container.getNrOutPorts();
            for (int i = 0; i < numOutPorts; i++) {
                if (i == 0 && !(container instanceof WorkflowManagerUI)) {
                    // skip the implicit flow var ports on "normal" nodes
                    continue;
                }
                if (wraps(container, NodeContainer.class)) {
                    action = new OpenPortViewAction(unwrapNC(container), i, numOutPorts);
                    manager.appendToGroup("outPortViews", action);
                }
            }
        }
    }
    boolean addMetaNodeActions = false;
    boolean addSubNodeActions = false;
    for (Object p : parts) {
        if (p instanceof NodeContainerEditPart) {
            NodeContainerUI model = ((NodeContainerEditPart) p).getNodeContainer();
            if (model instanceof WorkflowManagerUI) {
                addMetaNodeActions = true;
            } else if (model instanceof SubNodeContainerUI) {
                addSubNodeActions = true;
            }
        }
    }
    if (addMetaNodeActions) {
        metanodeMenuMgr = getMetaNodeMenuManager(metanodeMenuMgr, manager);
        // SAVE AS TEMPLATE
        action = m_actionRegistry.getAction(SaveAsMetaNodeTemplateAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // CHECK UPDATE
        action = m_actionRegistry.getAction(CheckUpdateMetaNodeLinkAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // DISCONNECT
        action = m_actionRegistry.getAction(DisconnectMetaNodeLinkAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // LINK TYPE
        action = m_actionRegistry.getAction(ChangeMetaNodeLinkAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // REVEAL TEMPLATE
        action = m_actionRegistry.getAction(RevealMetaNodeTemplateAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // LOCK
        if (Boolean.getBoolean(KNIMEConstants.PROPERTY_SHOW_METANODE_LOCK_ACTION)) {
            action = m_actionRegistry.getAction(LockMetaNodeAction.ID);
            metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
            ((AbstractNodeAction) action).update();
        }
    }
    if (addSubNodeActions) {
        subnodeMenuMgr = getSubNodeMenuManager(subnodeMenuMgr, manager);
        // SAVE AS TEMPLATE (SUBNODE)
        action = m_actionRegistry.getAction(SaveAsSubNodeTemplateAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // CHECK UPDATE (SUBNODE)
        action = m_actionRegistry.getAction(CheckUpdateMetaNodeLinkAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // DISCONNECT LINK (SUBNODE)
        action = m_actionRegistry.getAction(DisconnectSubNodeLinkAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // CHANGE LINK (SUBNODE)
        action = m_actionRegistry.getAction(ChangeSubNodeLinkAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // REVEAL TEMPLATE (SUBNODE)
        action = m_actionRegistry.getAction(RevealSubNodeTemplateAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // LOCK SUBNODE
        if (Boolean.getBoolean(KNIMEConstants.PROPERTY_SHOW_METANODE_LOCK_ACTION)) {
            action = m_actionRegistry.getAction(LockSubNodeAction.ID);
            subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
            ((AbstractNodeAction) action).update();
        }
    }
    manager.updateAll(true);
}

Example 5 with WorkflowPortBar

use of org.knime.workbench.editor2.model.WorkflowPortBar in project knime-core by knime.

the class WorkflowEditPartFactory method createEditPart.

/**
 * Creates the referring edit parts for the following parts of the model.
 * <ul>
 * <li>{@link WorkflowManager}: either {@link WorkflowRootEditPart} or {@link NodeContainerEditPart} (depending on
 * the currently displayed level)</li>
 * <li>{@link SingleNodeContainer}: {@link NodeContainerEditPart}</li>
 * <li>{@link NodeInPort}: {@link NodeInPortEditPart}</li>
 * <li>{@link NodeOutPort}: {@link NodeOutPortEditPart}</li>
 * <li>{@link ConnectionContainer}: {@link ConnectionContainerEditPart}</li>
 * <li>{@link WorkflowInPort}: {@link WorkflowInPortEditPart}</li>
 * <li>{@link WorkflowOutPort}: {@link WorkflowOutPortEditPart}</li>
 * </ul>
 *
 * The {@link WorkflowRootEditPart} has its {@link NodeContainer}s and its {@link WorkflowInPort}s and
 * {@link WorkflowOutPort}s as model children. The {@link NodeContainerEditPart} has its {@link NodePort}s as its
 * children.
 *
 * @see WorkflowRootEditPart#getModelChildren()
 * @see NodeContainerEditPart#getModelChildren()
 *
 * @throws IllegalArgumentException if any other object is passed
 *
 *             {@inheritDoc}
 */
@Override
public EditPart createEditPart(final EditPart context, final Object model) {
    // instantiated here
    // correct type in the if statement
    // model at the end of method
    EditPart part = null;
    if (model instanceof WorkflowManagerUI) {
        // this is out "root" workflow manager
        if (m_isTop) {
            // all following objects of type WorkflowManager are treated as
            // metanodes and displayed as NodeContainers
            m_isTop = false;
            part = new WorkflowRootEditPart();
        } else {
            // we already have a "root" workflow manager
            // must be a metanode
            part = new SubworkflowEditPart();
        }
    } else if (model instanceof NodeAnnotation) {
        /* IMPORTANT: first test NodeAnnotation then Annotation (as the
             * first derives from the latter! */
        part = new NodeAnnotationEditPart();
    } else if (model instanceof Annotation) {
        /* IMPORTANT: first test NodeAnnotation then Annotation (as the
             * first derives from the latter! */
        /* workflow annotations hang off the workflow manager */
        part = new AnnotationEditPart();
    } else if (model instanceof WorkflowPortBar) {
        WorkflowPortBar bar = (WorkflowPortBar) model;
        if (bar.isInPortBar()) {
            part = new WorkflowInPortBarEditPart();
        } else {
            part = new WorkflowOutPortBarEditPart();
        }
    } else if (model instanceof SingleNodeContainerUI) {
        // SingleNodeContainer -> NodeContainerEditPart
        part = new NodeContainerEditPart();
    // we have to test for WorkflowInPort first because it's a
    // subclass of NodeInPort (same holds for WorkflowOutPort and
    // NodeOutPort)
    } else if (model instanceof WorkflowInPortUI && context instanceof WorkflowInPortBarEditPart) {
        // WorkflowInPort and context WorkflowRootEditPart ->
        // WorkflowInPortEditPart
        /*
             * if the context is a WorkflowRootEditPart it indicates that the
             * WorkflowInPort is a model child of the WorkflowRootEditPart, i.e.
             * we look at it as a workflow in port. If the context is a
             * NodeContainerEditPart the WorkflowInPort is a model child of a
             * NodeContainerEditPart and we look at it as a node in port.
             */
        WorkflowInPortUI inport = (WorkflowInPortUI) model;
        part = new WorkflowInPortEditPart(inport.getPortType(), inport.getPortIndex());
    } else if (model instanceof WorkflowOutPortUI && context instanceof WorkflowOutPortBarEditPart) {
        // WorkflowOutPort and context WorkflowRootEditPart ->
        // WorkflowOutPortEditPart
        /*
             * if the context is a WorkflowRootEditPart it indicates that the
             * WorkflowOutPort is a model child of the WorkflowRootEditPart,
             * i.e. we look at it as a workflow out port. If the context is a
             * NodeContainerEditPart the WorkflowOutPort is a model child of a
             * NodeContainerEditPart and we look at it as a node out port.
             */
        // TODO: return SubWorkFlowOutPortEditPart
        WorkflowOutPortUI outport = (WorkflowOutPortUI) model;
        part = new WorkflowOutPortEditPart(outport.getPortType(), outport.getPortIndex());
    } else if (model instanceof WorkflowOutPortUI) {
        // TODO: return SubWorkFlowOutPortEditPart
        WorkflowOutPortUI outport = (WorkflowOutPortUI) model;
        part = new MetaNodeOutPortEditPart(outport.getPortType(), outport.getPortIndex());
    } else if (model instanceof NodeInPortUI) {
        // NodeInPort -> NodeInPortEditPart
        NodePortUI port = (NodeInPortUI) model;
        part = new NodeInPortEditPart(port.getPortType(), port.getPortIndex());
    } else if (model instanceof NodeOutPortUI) {
        // NodeOutPort -> NodeOutPortEditPart
        NodePortUI port = (NodeOutPortUI) model;
        part = new NodeOutPortEditPart(port.getPortType(), port.getPortIndex());
    } else if (model instanceof ConnectionContainerUI) {
        // ConnectionContainer -> ConnectionContainerEditPart
        part = new ConnectionContainerEditPart();
    } else {
        throw new IllegalArgumentException("unknown model obj: " + model);
    }
    // associate the model with the part (= the controller)
    part.setModel(model);
    return part;
}