org.bonitasoft.studio.configuration.ui.wizard.page.ExportConfigurationWizardPage.java Source code

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Here is the source code for org.bonitasoft.studio.configuration.ui.wizard.page.ExportConfigurationWizardPage.java

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/**
 * Copyright (C) 2012 BonitaSoft S.A.
 * BonitaSoft, 31 rue Gustave Eiffel - 38000 Grenoble
 * This program 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 2.0 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.bonitasoft.studio.configuration.ui.wizard.page;

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

import org.bonitasoft.studio.common.extension.BonitaStudioExtensionRegistryManager;
import org.bonitasoft.studio.common.log.BonitaStudioLog;
import org.bonitasoft.studio.configuration.extension.IConfigurationExportAction;
import org.bonitasoft.studio.configuration.i18n.Messages;
import org.bonitasoft.studio.model.configuration.Configuration;
import org.bonitasoft.studio.model.process.AbstractProcess;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.UpdateValueStrategy;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.validation.IValidator;
import org.eclipse.core.databinding.validation.ValidationStatus;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.databinding.viewers.ViewersObservables;
import org.eclipse.jface.databinding.wizard.WizardPageSupport;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;

/**
 * @author Romain Bioteau
 *
 */
public class ExportConfigurationWizardPage extends WizardPage {

    private static final String EXPORT_CONFIGURATION_ACTION_ID = "org.bonitasoft.studio.configuration.exportConfigurationAction";
    private static final String CLASS = "class";

    private Configuration configuration;
    private DataBindingContext databindingContext;
    private IAction action;
    private AbstractProcess process;

    public ExportConfigurationWizardPage(Configuration configuration, AbstractProcess process) {
        super(ExportConfigurationWizardPage.class.getName());
        setTitle(Messages.exportWizardPageTitle);
        setDescription(Messages.exportWizardPageDesc);
        this.configuration = configuration;
        this.process = process;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
     */
    @Override
    public void createControl(Composite parent) {
        Composite mainComposite = new Composite(parent, SWT.NONE);
        mainComposite.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());
        mainComposite.setLayout(GridLayoutFactory.fillDefaults().numColumns(1).margins(20, 20).create());

        databindingContext = new DataBindingContext();

        final TableViewer viewer = new TableViewer(mainComposite, SWT.FULL_SELECTION | SWT.BORDER | SWT.SINGLE);
        viewer.getTable().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());
        viewer.setContentProvider(new ArrayContentProvider());
        viewer.setLabelProvider(new ActionLabelProvider());
        viewer.setInput(getConfigurationExporterContributions());

        UpdateValueStrategy startegy = new UpdateValueStrategy();
        startegy.setBeforeSetValidator(new IValidator() {

            @Override
            public IStatus validate(Object value) {
                if (value instanceof IAction) {
                    return Status.OK_STATUS;
                }
                return ValidationStatus.error(Messages.mustSelectExportError);
            }
        });

        WizardPageSupport.create(this, databindingContext);
        databindingContext.bindValue(ViewersObservables.observeSingleSelection(viewer),
                PojoObservables.observeValue(this, "action"), startegy, null);

        setControl(mainComposite);
    }

    private List<IConfigurationExportAction> getConfigurationExporterContributions() {
        List<IConfigurationExportAction> result = new ArrayList<IConfigurationExportAction>();
        for (IConfigurationElement element : BonitaStudioExtensionRegistryManager.getInstance()
                .getConfigurationElements(EXPORT_CONFIGURATION_ACTION_ID)) {
            try {
                IConfigurationExportAction action = (IConfigurationExportAction) element
                        .createExecutableExtension(CLASS);
                action.setProcess(process);
                action.setConfiguration(configuration);
                result.add(action);
            } catch (CoreException e) {
                BonitaStudioLog.error(e);
            }
        }
        return result;
    }

    @Override
    public void dispose() {
        super.dispose();
        if (databindingContext != null) {
            databindingContext.dispose();
        }
    }

    public IAction getAction() {
        return action;
    }

    public void setAction(IAction action) {
        this.action = action;
    }
}