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

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

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/*
 * 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.data.util.BeanItem;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.Form;
import com.vaadin.ui.VerticalLayout;

import de.decidr.model.annotations.Reviewed;
import de.decidr.model.annotations.Reviewed.State;
import de.decidr.model.entities.SystemSettings;
import de.decidr.ui.controller.SaveSystemSettingsAction;
import de.decidr.ui.main.DecidrUI;

/**
 * The user can change the system settings.
 * 
 * @author AT
 */
@Reviewed(reviewers = { "TK", "JS", "RR" }, lastRevision = "0", currentReviewState = State.NeedsReview)
// XXX: This thing displays stuff like "Mta Use Tls" which doesn't only fail in
// the area of capitalization, it also leaves the user pretty confused as to
// what this is about...
public class SystemSettingsComponent extends CustomComponent {

    private static final long serialVersionUID = 3389525551936631625L;

    private SystemSettings systemSettings = null;

    private VerticalLayout verticalLayout = null;

    private Form settingsForm = null;

    private Button saveButton = null;

    private BeanItem<SystemSettings> settingsItem = null;

    /**
     * Default constructor.
     */
    public SystemSettingsComponent(SystemSettings systemSettings) {
        this.systemSettings = systemSettings;
        init();
    }

    /**
     * Returns the settings form
     * 
     * @return settingsForm - the settings form to returned
     */
    public Form getSettingsForm() {
        return settingsForm;
    }

    /**
     * Returns the settings item.
     * 
     * @return settingsItem the settings item to be returned
     */
    public BeanItem<SystemSettings> getSettingsItem() {
        return settingsItem;
    }

    /**
     * This method initializes the components of the system settings component.
     */
    private void init() {
        settingsForm = new Form();
        settingsForm.setWriteThrough(true);
        settingsForm.setImmediate(true);
        settingsItem = new BeanItem<SystemSettings>(systemSettings);
        settingsForm.setItemDataSource(settingsItem);
        Object[] visiblePropertyIds = new Object[] { "autoAcceptNewTenants", "logLevel",
                "changeEmailRequestLifetimeSeconds", "baseUrl", "invitationLifetimeSeconds",
                "maxAttachmentsPerEmail", "maxUploadFileSizeBytes", "maxUploadFileSizeBytes", "mtaHostname",
                "emailClientHostname", "mtaPassword", "mtaPort", "mtaUsername", "mtaUseTls",
                "passwordResetRequestLifetimeSeconds", "registrationRequestLifetimeSeconds", "systemName",
                "systemEmailAddress", "monitorUpdateIntervalSeconds", "monitorAveragingPeriodSeconds",
                "serverPoolInstances", "minServerLoadForLock", "maxServerLoadForUnlock", "maxServerLoadForShutdown",
                "minUnlockedServers", "minWorkflowInstancesForLock", "maxWorkflowInstancesForUnlock",
                "maxWorkflowInstancesForShutdown" };
        settingsForm.setVisibleItemProperties(visiblePropertyIds);

        verticalLayout = new VerticalLayout();
        verticalLayout.setSpacing(true);

        saveButton = new Button("Save", new SaveSystemSettingsAction(this));

        setCompositionRoot(verticalLayout);
        setCaption("System Setting");

        verticalLayout.addComponent(settingsForm);
        verticalLayout.addComponent(saveButton);
        verticalLayout.setComponentAlignment(saveButton, Alignment.BOTTOM_LEFT);
    }

    /**
     * Updates all changes since the previous commit to the data source.
     */
    public void saveSettingsItem() {
        try {
            settingsForm.commit();

        } catch (Exception e) {
            DecidrUI.getCurrent().getMainWindow().showNotification(e.getMessage());
        }
    }
}