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

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Here is the source code for gov.redhawk.sca.internal.ui.handlers.DeleteScaFileStoreHandler.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.IRefreshable;
import gov.redhawk.model.sca.RefreshDepth;
import gov.redhawk.model.sca.ScaFileStore;
import gov.redhawk.sca.ui.ScaUiPlugin;

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

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.filesystem.EFS;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubMonitor;
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;

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

    private static class DeleteJob extends Job {

        private final List<ScaFileStore> stores;

        public DeleteJob(final List<ScaFileStore> stores) {
            super("Deleting...");
            setUser(true);
            setPriority(Job.LONG);
            this.stores = stores;
        }

        @Override
        protected IStatus run(final IProgressMonitor monitor) {
            final SubMonitor subMonitor = SubMonitor.convert(monitor, "Deleting files...", this.stores.size());
            final MultiStatus retVal = new MultiStatus(ScaUiPlugin.PLUGIN_ID, IStatus.OK, "Problems deleting files",
                    null);
            for (final ScaFileStore store : this.stores) {
                try {
                    final SubMonitor storeMonitor = subMonitor.newChild(1);
                    storeMonitor.beginTask("Deleting " + store.getName(), 2);
                    store.getFileStore().delete(EFS.NONE, storeMonitor.newChild(1));
                    ((IRefreshable) store.eContainer()).refresh(storeMonitor.newChild(1), RefreshDepth.CHILDREN);
                } catch (final CoreException e) {
                    retVal.add(new Status(e.getStatus().getSeverity(), ScaUiPlugin.PLUGIN_ID,
                            e.getLocalizedMessage(), e));
                } catch (final InterruptedException e) {
                    // PASS
                }
            }
            return retVal;
        }

    }

    /**
     * {@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;
            final List<ScaFileStore> files = new ArrayList<ScaFileStore>();
            for (final Object obj : ss.toArray()) {
                if (obj instanceof ScaFileStore) {
                    final ScaFileStore store = (ScaFileStore) obj;
                    files.add(store);
                }
            }
            final DeleteJob job = new DeleteJob(files);
            job.schedule();
        }
        return null;
    }

}