How to programmatically call the `Refresh` functionality on a node in Custom Navigator?

Question

This is related to a tool(Software AG Web Designer) which has added functionalities on top of Eclipse IDE as plugins.

As seen below, the custom navigator is called Package Navigator. Also seen is the Refresh button selected on the top node(Default name in this case).

Is there a way to programmatically call the Refresh functionality from a custom plugin which I am working on?

Update

All I am able to find is the below-

<extension
         point="org.eclipse.ui.popupMenus">
      <objectContribution
            adaptable="false"
            id="com.softwareag.is.ui.navigator.actions.refresh"
            objectClass="com.softwareag.is.ui.navigator.model.ISLazyTreeParent">
         <action
               class="com.softwareag.is.ui.navigator.actions.RefreshFromServerAction"
               definitionId="org.eclipse.ui.file.refresh"
               enablesFor="1"
               helpContextId="org.eclipse.ui.edit.delete"
               icon="icons/tree/refresh.gif"
               id="com.softwareag.is.ui.navigator.actions.refresh"
               label="%refresh_label"
               menubarPath="group.edit"
               tooltip="%refresh_tooltip">
          </action>
          <enablement>
            <or>
                <test property="com.softwareag.is.navigator.property.vcsEnabled"
                    value="true" forcePluginActivation="true"/>
                <test property="com.softwareag.is.navigator.property.vcsNotEnabled"
                    value="true" forcePluginActivation="true"/>
            </or>
          </enablement>
      </objectContribution>

And the class is RefreshFromServerAction-

public class RefreshFromServerAction extends Action implements IActionDelegate {
    private IStructuredSelection selection;

    public RefreshFromServerAction() {
        this.selection = StructuredSelection.EMPTY;
        this.setId(ActionFactory.REFRESH.getId());
        this.setActionDefinitionId("org.eclipse.ui.file.refresh");
    }

    public void selectionChanged(IAction action, ISelection sel) {
        if (sel instanceof IStructuredSelection) {
            this.selection = (IStructuredSelection) sel;
        } else {
            this.selection = StructuredSelection.EMPTY;
        }

    }

    public void run() {
        this.run((IAction) null);
    }

    public void run(IAction action) {
        ISServerNode[] servers = AssetUtils.getSelectedServersFromSelection(this.selection);
        if (servers != null) {
            NavigatorHelper.getInstance().setExpandAllPath((ISServerObjectBase) null, (ISServerNode) null);
            List<ISServerNode> refreshedServers = new ArrayList();

            for (int i = 0; i < servers.length; ++i) {
                if (!refreshedServers.contains(servers[i])) {
                    ServerConnection serverConnection = servers[i].getServerConnection();
                    if (serverConnection != null && !serverConnection.isConnected()) {
                        return;
                    }

                    ISTreeParent[] selectedAssetsFromSelection = AssetUtils
                            .getSelectedAssetsFromSelection(this.selection);
                    ISTreeParent[] var7 = selectedAssetsFromSelection;
                    int var8 = selectedAssetsFromSelection.length;

                    for (int var9 = 0; var9 < var8; ++var9) {
                        ISTreeParent isTreeParent = var7[var9];
                        ServerElementsCache.getInstance().clearCache(serverConnection, isTreeParent);
                    }

                    if ((new ISAssetSaver()).askAndSaveDirtyEditors(servers[i].getServerConnection())) {
                        ISNavigatorPlugin.getDefault().notifyListeners(new NavigatorEvent(5, servers[i], this));
                        refreshedServers.add(servers[i]);
                    }
                }
            }

        }
    }
}

Do you need to create its object first and then do the needful. Or is there any standard way to call the command?

You need to know what that menu item is bound to. Use plug-in spy to find out what action/command it uses. — greg-449, Mar 09 '20 at 11:49

score 1 · Accepted Answer · answered Mar 09 '20 at 15:07

This action appears to be implementing a handler for the org.eclipse.ui.file.refresh command. So you should be able to use the IHandlerService to execute that command.

You will need to call the handler service for that view since other views / editors will have different handlers for this command.

IViewPart view = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().findView("view id"); 

IHandlerService handlerService = view.getSite().getService(IHandlerService.class);

handlerService.executeCommand("org.eclipse.ui.file.refresh", null);

Flawless. It's able to refresh. I also want to expand the nodes of the tree (nodes are called packages in the Default parent node in the Package Navigator, refer to the above image). Any suggestions? — Farhan stands with Palestine, Mar 09 '20 at 17:06

How to programmatically call the `Refresh` functionality on a node in Custom Navigator?

Update

1 Answers1