gov.redhawk.ui.views.namebrowser.internal.command.Refresh.java Source code

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Here is the source code for gov.redhawk.ui.views.namebrowser.internal.command.Refresh.java

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/** 
 * This file is protected by Copyright. 
 * Please refer to the COPYRIGHT file distributed with this source distribution.
 * 
 * This file is part of REDHAWK IDE.
 * 
 * All rights reserved.  This program and the accompanying materials are made available under 
 * the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 *
 */
package gov.redhawk.ui.views.namebrowser.internal.command;

import gov.redhawk.ui.views.namebrowser.view.BindingNode;
import gov.redhawk.ui.views.namebrowser.view.NameBrowserView;

import java.util.HashSet;
import java.util.Set;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;

public class Refresh extends AbstractHandler implements IHandler {

    @Override
    public Object execute(final ExecutionEvent event) throws ExecutionException {
        final ISelection selection = HandlerUtil.getCurrentSelection(event);

        final IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
        if (page != null) {
            NameBrowserView view;
            view = (NameBrowserView) page.findView(NameBrowserView.ID);
            if (view != null) {
                if (selection instanceof IStructuredSelection) {
                    final IStructuredSelection sel = (IStructuredSelection) selection;
                    final Set<BindingNode> nodes = new HashSet<BindingNode>();
                    for (final Object obj : sel.toArray()) {
                        if (obj instanceof BindingNode) {
                            nodes.add((BindingNode) obj);
                        }
                    }
                    view.refresh(nodes.toArray(new BindingNode[nodes.size()]));
                } else {
                    view.refresh();
                }
            }
        }

        return null;
    }

}