org.kalypso.ogc.sensor.view.actions.DumpStructureHandler.java Source code

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Here is the source code for org.kalypso.ogc.sensor.view.actions.DumpStructureHandler.java

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/*
 * --------------- Kalypso-Header --------------------------------------------
 *
 * This file is part of kalypso. Copyright (C) 2004, 2005 by:
 *
 * Technical University Hamburg-Harburg (TUHH) Institute of River and coastal engineering Denickestr. 22 21073 Hamburg,
 * Germany http://www.tuhh.de/wb
 *
 * and
 *
 * Bjoernsen Consulting Engineers (BCE) Maria Trost 3 56070 Koblenz, Germany http://www.bjoernsen.de
 *
 * This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General
 * Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Contact:
 *
 * E-Mail: belger@bjoernsen.de schlienger@bjoernsen.de v.doemming@tuhh.de
 *
 * ------------------------------------------------------------------------------------
 */
package org.kalypso.ogc.sensor.view.actions;

import java.io.IOException;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;

import org.apache.commons.io.IOUtils;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.ISources;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
import org.kalypso.ogc.sensor.view.ObservationChooser;
import org.kalypso.repository.IRepository;
import org.kalypso.repository.RepositoryException;
import org.kalypso.ui.internal.i18n.Messages;

/**
 * DumpStructureAction
 * 
 * @author schlienger (16.06.2005)
 */
public class DumpStructureHandler extends AbstractHandler {
    /**
     * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
     */
    @Override
    public Object execute(final ExecutionEvent event) {
        final IEvaluationContext context = (IEvaluationContext) event.getApplicationContext();
        final Shell shell = (Shell) context.getVariable(ISources.ACTIVE_SHELL_NAME);
        final IWorkbenchPart part = (IWorkbenchPart) context.getVariable(ISources.ACTIVE_PART_NAME);
        final ObservationChooser chooser = (ObservationChooser) part.getAdapter(ObservationChooser.class);

        final IRepository rep = chooser.isRepository(chooser.getSelection());
        if (rep == null)
            return Status.OK_STATUS;

        final StringWriter writer = new StringWriter();

        final IRunnableWithProgress runnable = new IRunnableWithProgress() {
            @Override
            public void run(final IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                monitor.beginTask(Messages.getString("org.kalypso.ogc.sensor.view.DumpStructureHandler.0"), 1000); //$NON-NLS-1$

                try {
                    rep.dumpStructure(writer, monitor);
                    writer.close();
                } catch (final IOException e) {
                    throw new InvocationTargetException(e);
                } catch (final RepositoryException e) {
                    throw new InvocationTargetException(e);
                } finally {
                    IOUtils.closeQuietly(writer);

                    monitor.done();
                }
            }
        };

        try {
            PlatformUI.getWorkbench().getProgressService().busyCursorWhile(runnable);

            final Clipboard clipboard = new Clipboard(shell.getDisplay());
            clipboard.setContents(new Object[] { writer.toString() },
                    new Transfer[] { TextTransfer.getInstance() });
            clipboard.dispose();
        } catch (final InvocationTargetException e) {
            e.printStackTrace();

            MessageDialog.openWarning(shell,
                    Messages.getString("org.kalypso.ogc.sensor.view.DumpStructureHandler.1"), //$NON-NLS-1$
                    e.getLocalizedMessage());
        } catch (final InterruptedException ignored) {
            // empty
        }

        return Status.OK_STATUS;
    }

}