eu.geclipse.ui.internal.wizards.VoImportWizard.java Source code

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Here is the source code for eu.geclipse.ui.internal.wizards.VoImportWizard.java

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/*****************************************************************************
 * Copyright (c) 2006-2008 g-Eclipse Consortium 
 * 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
 *
 * Initial development of the original code was made for the
 * g-Eclipse project founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * Contributors:
 *    Mathias Stuempert - initial API and implementation
 *    Ariel Garcia      - updated to new problem reporting
 *****************************************************************************/

package eu.geclipse.ui.internal.wizards;

import java.lang.reflect.InvocationTargetException;
import java.net.URI;
import java.net.URL;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.jface.wizard.WizardPage;

import eu.geclipse.core.model.IVoLoader;
import eu.geclipse.core.reporting.ProblemException;
import eu.geclipse.ui.dialogs.ProblemDialog;
import eu.geclipse.ui.internal.Activator;

/**
 * Wizard that is used by the VO preference page to import
 * virtual organizations from remote repositories.
 */
public class VoImportWizard extends Wizard {

    private VoLoaderSelectionPage selectionPage;

    private VoImportLocationChooserPage locationPage;

    private VoChooserPage chooserPage;

    private static class VoImportOperation implements IRunnableWithProgress {

        private IVoLoader loader;

        private URI location;

        private String[] vos;

        private ProblemException error;

        VoImportOperation(final IVoLoader loader, final URI location, final String[] vos) {
            this.loader = loader;
            this.location = location;
            this.vos = vos;
        }

        /**
         * Get the status of the operation.
         * 
         * @return The merged status of all nested import operations.
         */
        public ProblemException getError() {
            return this.error;
        }

        public void run(final IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {

            monitor.beginTask(Messages.getString("VoImportWizard.loading_progress"), this.vos.length); //$NON-NLS-1$
            this.error = null;

            for (String certID : this.vos) {
                SubProgressMonitor subMonitor = new SubProgressMonitor(monitor, 1);
                try {
                    this.loader.createVo(this.location, certID, subMonitor);
                } catch (ProblemException pExc) {
                    if (this.error == null) {
                        this.error = pExc;
                    } else {
                        this.error.getProblem().merge(pExc.getProblem());
                    }
                }
            }

            monitor.done();

        }

    }

    /**
     * Standard constructor.
     * @throws ProblemException thrown in case the wizard can not be opened
     */
    public VoImportWizard() throws ProblemException {
        super();
        setNeedsProgressMonitor(true);
        this.selectionPage = new VoLoaderSelectionPage();
        if (this.selectionPage.getAvailableLoaders().size() == 0) {
            throw new ProblemException("eu.geclipse.problem.canNotFindVoLoaders", Activator.PLUGIN_ID); //$NON-NLS-1$
        }
        URL imgUrl = Activator.getDefault().getBundle().getEntry("icons/wizban/vo_wiz.gif"); //$NON-NLS-1$
        setDefaultPageImageDescriptor(ImageDescriptor.createFromURL(imgUrl));
    }

    @Override
    public void addPages() {

        if (this.selectionPage.initVoLoaderList() > 1) {
            addPage(this.selectionPage);
        }

        this.locationPage = new VoImportLocationChooserPage(this.selectionPage);
        addPage(this.locationPage);

        this.chooserPage = new VoChooserPage(this.locationPage);
        addPage(this.chooserPage);

    }

    @Override
    public boolean canFinish() {
        return getContainer().getCurrentPage() == this.chooserPage;
    }

    @Override
    public String getWindowTitle() {
        return Messages.getString("VoImportWizard.title"); //$NON-NLS-1$
    }

    @Override
    public boolean performFinish() {

        boolean result = true;
        WizardPage currentPage = (WizardPage) getContainer().getCurrentPage();
        currentPage.setErrorMessage(null);

        final IVoLoader loader = this.selectionPage.getSelectedLoader();
        final URI location = this.locationPage.getSelectedLocation();
        final String[] vos = this.chooserPage.getSelectedVos();

        VoImportOperation op = new VoImportOperation(loader, location, vos);

        try {
            getContainer().run(false, false, op);
        } catch (InvocationTargetException itExc) {
            Throwable cause = itExc.getCause();
            ProblemDialog.openProblem(getShell(), Messages.getString("VoImportWizard.import_failed"), //$NON-NLS-1$
                    Messages.getString("VoImportWizard.import_failed"), //$NON-NLS-1$
                    cause);
            currentPage.setErrorMessage(cause.getLocalizedMessage());
            result = false;
        } catch (InterruptedException intExc) {
            currentPage.setErrorMessage(intExc.getLocalizedMessage());
            result = false;
        }

        ProblemException error = op.getError();

        if (error != null) {
            ProblemDialog.openProblem(getShell(), Messages.getString("VoImportWizard.error_dialog_title"), //$NON-NLS-1$
                    Messages.getString("VoImportWizard.error_dialog_text"), //$NON-NLS-1$
                    error);
        }

        return result;

    }

}