gov.redhawk.frontend.ui.internal.ConnectTunerHandler.java Source code

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Here is the source code for gov.redhawk.frontend.ui.internal.ConnectTunerHandler.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.frontend.ui.internal;

import gov.redhawk.frontend.TunerStatus;
import gov.redhawk.frontend.ui.FrontEndUIActivator;
import gov.redhawk.model.sca.ScaDevice;
import gov.redhawk.model.sca.ScaPort;
import gov.redhawk.model.sca.ScaUsesPort;

import java.util.ArrayList;
import java.util.List;

import mil.jpeojtrs.sca.util.ScaEcoreUtils;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.statushandlers.StatusManager;

/**
 * 
 */
public class ConnectTunerHandler extends AbstractHandler {

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
     */
    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        // need to grab Port selections first, otherwise Plot Wizard option below will change the selection
        IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getActiveMenuSelection(event);
        if (selection == null) {
            selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
            if (selection == null) {
                return null;
            }
        }

        final List<?> elements = selection.toList();

        for (Object obj : elements) {
            if (obj instanceof TunerStatus) {
                final TunerStatus tuner = (TunerStatus) obj;
                final ScaDevice<?> device = ScaEcoreUtils.getEContainerOfType(tuner, ScaDevice.class);
                List<ScaPort<?, ?>> devicePorts = device.getPorts();
                final List<ScaUsesPort> usesPorts = new ArrayList<ScaUsesPort>();
                for (ScaPort<?, ?> port : devicePorts) {
                    if (port instanceof ScaUsesPort) {
                        usesPorts.add((ScaUsesPort) port);
                    }
                }
                if (usesPorts.isEmpty()) {
                    Status status = new Status(IStatus.ERROR, FrontEndUIActivator.PLUGIN_ID,
                            "No output ports available, can not make a connection from " + tuner.getTunerID(),
                            new Exception().fillInStackTrace());
                    StatusManager.getManager().handle(status, StatusManager.LOG | StatusManager.SHOW);
                    return null;
                }

                ConnectTunerWizard wizard = new ConnectTunerWizard();
                wizard.setTuner(tuner);
                WizardDialog dialog = new WizardDialog(Display.getCurrent().getActiveShell(), wizard);
                dialog.open();
            }
        }
        return null;
    }

}