de.topicmapslab.tmcledit.tmclimport.wizards.ImportWizard.java Source code

Introduction

Here is the source code for de.topicmapslab.tmcledit.tmclimport.wizards.ImportWizard.java

Source

/*******************************************************************************
 * Copyright (c) 2006 IBM Corporation and others.
 * 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
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package de.topicmapslab.tmcledit.tmclimport.wizards;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.ui.IImportWizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;

import de.topicmapslab.tmcl.loader.listener.IWorkMonitor;
import de.topicmapslab.tmcledit.model.File;
import de.topicmapslab.tmcledit.model.views.ModelView;
import de.topicmapslab.tmcledit.tmclimport.Activator;
import de.topicmapslab.tmcledit.tmclimport.builder.OnotoaBuilder;

/**
 * Wiztard for importing a topic map.
 * @author Hannes Niederhausen
 *
 */
public class ImportWizard extends Wizard implements IImportWizard {

    ImportWizardPage mainPage;

    public boolean performFinish() {

        ProgressMonitorDialog monitorDlg = new ProgressMonitorDialog(getShell());
        monitorDlg.setCancelable(false);

        try {
            monitorDlg.run(false, false, new LoaderRunnable());
        } catch (Exception e) {
            Activator.logException(e);
            MessageDialog.openError(getShell(), "Error while importing schema",
                    "An error occurred:" + e.getMessage() + "[" + e.getClass().getName() + "]");
        }

        return true;
    }

    public void init(IWorkbench workbench, IStructuredSelection selection) {
        setWindowTitle("TMCL Schema Import Wizard"); // NON-NLS-1
        setNeedsProgressMonitor(true);
        mainPage = new ImportWizardPage("Import TMCL schema"); // NON-NLS-1
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.wizard.IWizard#addPages()
     */
    public void addPages() {
        super.addPages();
        addPage(mainPage);
    }

    private class LoaderRunnable implements IRunnableWithProgress, IWorkMonitor {
        private IProgressMonitor monitor;
        private boolean started;
        private int steps;
        private int numberOfSteps;

        public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
            this.monitor = monitor;

            OnotoaBuilder builder = new OnotoaBuilder(mainPage.getFile());
            File file = builder.getFile(this);

            if (file.getFilename() != null)
                Activator.getDefault().getPreferenceStore().putValue("last_imported_file", file.getFilename());

            try {
                IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
                ModelView mv = (ModelView) activePage.findView(ModelView.ID);
                if (mv == null) {
                    RuntimeException e = new RuntimeException("Could not find Model View");
                    Activator.logException(e);
                    throw e;
                }

                mv.setFilename("", true, file);

                activePage.activate(mv);

            } catch (Exception e) {
                throw new RuntimeException(e);
            }

        }

        public void finished() {
            monitor.worked(numberOfSteps);
        }

        public void start(int numberOfSteps) {
            this.monitor.beginTask("Importing schema...", numberOfSteps);
            this.started = true;
            this.steps = 0;
            this.numberOfSteps = numberOfSteps;
        }

        public boolean isStarted() {
            return started;
        }

        public void stepDone() {
            steps++;
            monitor.worked(steps);
        }

    }

}