com.bdaum.zoom.ui.internal.commands.OrphansCommand.java Source code

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Here is the source code for com.bdaum.zoom.ui.internal.commands.OrphansCommand.java

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/*
 * This file is part of the ZoRa project: http://www.photozora.org.
 *
 * ZoRa is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * ZoRa 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ZoRa; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * (c) 2016 Berthold Daum  
 */
package com.bdaum.zoom.ui.internal.commands;

import java.lang.reflect.InvocationTargetException;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.osgi.util.NLS;

import com.bdaum.zoom.cat.model.asset.AssetImpl;
import com.bdaum.zoom.cat.model.group.CriterionImpl;
import com.bdaum.zoom.cat.model.group.SmartCollectionImpl;
import com.bdaum.zoom.core.Constants;
import com.bdaum.zoom.core.Core;
import com.bdaum.zoom.core.ICore;
import com.bdaum.zoom.core.IVolumeManager;
import com.bdaum.zoom.core.QueryField;
import com.bdaum.zoom.core.db.ICollectionProcessor;
import com.bdaum.zoom.ui.Ui;
import com.bdaum.zoom.ui.dialogs.AcousticMessageDialog;
import com.bdaum.zoom.ui.dialogs.ZProgressMonitorDialog;
import com.bdaum.zoom.ui.internal.UiActivator;
import com.bdaum.zoom.ui.internal.actions.Messages;

public class OrphansCommand extends AbstractCommandHandler {

    private List<AssetImpl> result = new ArrayList<AssetImpl>();
    private Set<String> volumes = new HashSet<String>();
    private boolean isCanceled = false;

    @Override
    public void run() {
        AcousticMessageDialog includeDialog = new AcousticMessageDialog(getShell(),
                Messages.FindOrphansActionDelegate_search_orphans, null,
                Messages.FindOrphansActionDelegate_include_off_line, AcousticMessageDialog.QUESTION, new String[] {
                        IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL, IDialogConstants.CANCEL_LABEL },
                1);
        final int ret = includeDialog.open();
        if (ret >= 2)
            return;
        isCanceled = false;
        ZProgressMonitorDialog dialog = new ZProgressMonitorDialog(getShell());
        IRunnableWithProgress runnable = new IRunnableWithProgress() {
            public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                ICore core = Core.getCore();
                IVolumeManager volumeManager = core.getVolumeManager();
                List<AssetImpl> set = core.getDbManager().obtainAssets();
                monitor.beginTask(Messages.FindOrphansActionDelegate_scanning_catalog, set.size());
                for (AssetImpl asset : set) {
                    URI uri = volumeManager.findExistingFile(asset, false);
                    if (uri == null) {
                        if (ret == 0 || !volumeManager.isOffline(asset.getVolume()))
                            result.add(asset);
                        else {
                            String volume = asset.getVolume();
                            if (volume != null && !volume.isEmpty())
                                volumes.add(volume);
                        }
                    }
                    if (monitor.isCanceled()) {
                        isCanceled = true;
                        break;
                    }
                    monitor.worked(1);
                }
                monitor.done();
            }
        };
        if (isCanceled)
            return;
        try {
            String v = null;
            if (!volumes.isEmpty()) {
                String[] vols = volumes.toArray(new String[volumes.size()]);
                Arrays.sort(vols);
                StringBuffer sb = new StringBuffer();
                for (String volume : vols) {
                    if (sb.length() > 0)
                        sb.append(", "); //$NON-NLS-1$
                    sb.append(volume);
                }
                v = sb.toString();
            }
            dialog.run(true, true, runnable);
            if (result.isEmpty()) {
                String message = Messages.FindOrphansActionDelegate_no_orphans_found;
                if (ret == 1 && v != null)
                    message += NLS.bind(Messages.FindOrphansActionDelegate_entries_not_checked, v);
                AcousticMessageDialog.openInformation(getShell(), Messages.FindOrphansActionDelegate_orphan_search,
                        message);
            } else {
                boolean show = true;
                if (v != null) {
                    String message = NLS.bind(Messages.FindOrphansActionDelegate_n_entries_found, result.size());
                    if (ret == 1)
                        message += NLS.bind(Messages.FindOrphansActionDelegate_entries_not_checked, v);
                    show = AcousticMessageDialog.openConfirm(getShell(),
                            Messages.FindOrphansActionDelegate_orphan_search, message);
                }
                if (show) {
                    SmartCollectionImpl collection = new SmartCollectionImpl(
                            Messages.FindOrphansActionDelegate_orphans, true, false, true, false, null, 0, null, 0,
                            null, Constants.INHERIT_LABEL, null, 0, null);
                    collection.addCriterion(
                            new CriterionImpl(ICollectionProcessor.ORPHANS, null, result, QueryField.XREF, false));
                    Ui.getUi().getNavigationHistory(getActiveWorkbenchWindow())
                            .postSelection(new StructuredSelection(collection));
                }
            }
        } catch (InvocationTargetException e) {
            UiActivator.getDefault().logError(Messages.FindOrphansActionDelegate_error_scanning_for_orphans, e);
        } catch (InterruptedException e) {
            // nothing to do
        }
    }

    @Override
    public void dispose() {
        result.clear();
        volumes.clear();
        super.dispose();
    }

}