de.decidr.ui.view.WelcomePageComponent.java Source code

Introduction

Here is the source code for de.decidr.ui.view.WelcomePageComponent.java

Source

/*
 * The DecidR Development Team licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package de.decidr.ui.view;

import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;

import de.decidr.model.DecidrGlobals;
import de.decidr.model.annotations.Reviewed;
import de.decidr.model.annotations.Reviewed.State;
import de.decidr.model.exceptions.TransactionException;
import de.decidr.model.facades.TenantFacade;
import de.decidr.ui.main.DecidrUI;
import de.decidr.ui.main.ModelFacades;
import de.decidr.ui.view.windows.TransactionErrorDialogComponent;

/**
 * Represents the welcome page according to a specific tenant which is stored in
 * the session.
 * 
 * @author Geoffrey-Alexeij Heinze
 */
@Reviewed(reviewers = { "TK", "JS" }, lastRevision = "0", currentReviewState = State.NeedsReview)
public class WelcomePageComponent extends CustomComponent {

    private static final long serialVersionUID = 1L;

    /**
     * Default constructor
     */
    public WelcomePageComponent() {
        init();
    }

    /**
     * This method initializes the components of the help component
     */
    private void init() {
        VerticalLayout verticalLayout = new VerticalLayout();
        this.setCompositionRoot(verticalLayout);

        TenantFacade tenantFacade = ModelFacades.getTenantFacade();
        Long tenantId = DecidrUI.getCurrent().getCurrentTenantId();
        String tenantDescription = "";
        Label labelDesc = null;

        try {
            if (tenantId != null) {
                tenantDescription = "";
                if (tenantFacade.getTenant(tenantId).getDescription() != null) {
                    tenantDescription = tenantFacade.getTenant(tenantId).getDescription();
                }
                labelDesc = new Label(tenantDescription, Label.CONTENT_XHTML);
            } else {
                labelDesc = new Label(

                        "Welcome\n" + DecidrGlobals.getDefaultTenant().getDescription(), Label.CONTENT_TEXT);
            }

            verticalLayout.addComponent(labelDesc);
        } catch (TransactionException exception) {
            DecidrUI.getCurrent().getMainWindow().addWindow(new TransactionErrorDialogComponent(exception));
        }
    }
}