gov.redhawk.sca.internal.ui.handlers.DisconnectPortHandler.java Source code

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Here is the source code for gov.redhawk.sca.internal.ui.handlers.DisconnectPortHandler.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.sca.internal.ui.handlers;

import gov.redhawk.model.sca.ScaConnection;
import gov.redhawk.sca.ui.ScaUiPlugin;

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.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.handlers.HandlerUtil;
import org.omg.CORBA.SystemException;

import CF.PortPackage.InvalidPort;

/**
 * 
 */
public class DisconnectPortHandler extends AbstractHandler implements IHandler {

    private static class DisconnectJob extends Job {

        private final ScaConnection connection;

        public DisconnectJob(final ScaConnection connection) {
            super("Disconnect Connection Job");
            this.connection = connection;
            setPriority(Job.LONG);
        }

        @Override
        protected IStatus run(final IProgressMonitor monitor) {
            monitor.beginTask("Disconnect " + this.connection.getId(), IProgressMonitor.UNKNOWN);
            try {
                try {
                    this.connection.getPort().disconnectPort(this.connection);
                    return Status.OK_STATUS;
                } catch (final InvalidPort e) {
                    return new Status(Status.ERROR, ScaUiPlugin.PLUGIN_ID,
                            "Failed to diconnect " + this.connection.getId());
                } catch (final SystemException e) {
                    return new Status(Status.ERROR, ScaUiPlugin.PLUGIN_ID,
                            "Failed to diconnect " + this.connection.getId());
                }
            } finally {
                monitor.done();
            }
        }

    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object execute(final ExecutionEvent event) throws ExecutionException {
        ISelection selection = HandlerUtil.getActiveMenuSelection(event);
        if (selection == null) {
            selection = HandlerUtil.getCurrentSelection(event);
        }
        if (selection instanceof IStructuredSelection) {
            final IStructuredSelection ss = (IStructuredSelection) selection;
            for (final Object obj : ss.toArray()) {
                if (obj instanceof ScaConnection) {
                    new DisconnectJob((ScaConnection) obj).schedule();
                }
            }
        }
        return null;
    }

}