org.agocontrol.site.viewlet.element.ElementsFlowlet.java Source code

Introduction

Here is the source code for org.agocontrol.site.viewlet.element.ElementsFlowlet.java

Source

/**
 * Copyright 2013 Tommi S.E. Laukkanen
 *
 * Licensed 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 org.agocontrol.site.viewlet.element;

import com.vaadin.data.util.filter.Compare;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.GridLayout;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Notification;
import com.vaadin.ui.Table;
import com.vaadin.ui.UI;
import org.agocontrol.client.BusClient;
import org.agocontrol.model.Element;
import org.agocontrol.site.AgoControlSiteFields;
import org.agocontrol.site.AgoControlSiteUI;
import org.vaadin.addons.lazyquerycontainer.EntityContainer;
import org.vaadin.addons.sitekit.flow.AbstractFlowlet;
import org.vaadin.addons.sitekit.grid.FieldDescriptor;
import org.vaadin.addons.sitekit.grid.FilterDescriptor;
import org.vaadin.addons.sitekit.grid.FormattingTable;
import org.vaadin.addons.sitekit.grid.Grid;
import org.vaadin.addons.sitekit.model.Company;
import org.vaadin.addons.sitekit.util.ContainerUtil;

import javax.jms.MapMessage;
import javax.jms.Message;
import javax.persistence.EntityManager;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;

/**
 * Element list Flowlet.
 *
 * @author Tommi S.E. Laukkanen
 */
public final class ElementsFlowlet extends AbstractFlowlet {

    /** Serial version UID. */
    private static final long serialVersionUID = 1L;
    /** The container. */
    private EntityContainer<Element> container;
    /** The grid. */
    private Grid grid;

    @Override
    public String getFlowletKey() {
        return "elements";
    }

    @Override
    public boolean isDirty() {
        return false;
    }

    @Override
    public boolean isValid() {
        return true;
    }

    @Override
    public void initialize() {
        final List<FieldDescriptor> fieldDescriptors = AgoControlSiteFields.getFieldDescriptors(Element.class);

        final List<FilterDescriptor> filterDefinitions = new ArrayList<FilterDescriptor>();

        final EntityManager entityManager = getSite().getSiteContext().getObject(EntityManager.class);
        container = new EntityContainer<Element>(entityManager, true, true, false, Element.class, 1000,
                new String[] { "treeIndex" }, new boolean[] { true }, "elementId");

        ContainerUtil.addContainerProperties(container, fieldDescriptors);

        final GridLayout gridLayout = new GridLayout(1, 2);
        gridLayout.setSizeFull();
        gridLayout.setMargin(false);
        gridLayout.setSpacing(true);
        gridLayout.setRowExpandRatio(1, 1f);
        setViewContent(gridLayout);

        final HorizontalLayout buttonLayout = new HorizontalLayout();
        buttonLayout.setSpacing(true);
        buttonLayout.setSizeUndefined();
        gridLayout.addComponent(buttonLayout, 0, 0);

        final Table table = new FormattingTable();
        grid = new Grid(table, container);
        grid.setFields(fieldDescriptors);
        grid.setFilters(filterDefinitions);

        table.setColumnCollapsed("elementId", true);
        table.setColumnCollapsed("bus", true);
        table.setColumnCollapsed("created", true);
        table.setColumnCollapsed("modified", true);
        gridLayout.addComponent(grid, 0, 1);

        final Button addButton = getSite().getButton("add");
        buttonLayout.addComponent(addButton);
        addButton.addClickListener(new ClickListener() {
            /** Serial version UID. */
            private static final long serialVersionUID = 1L;

            @Override
            public void buttonClick(final ClickEvent event) {
                final Element element = new Element();
                element.setCreated(new Date());
                element.setModified(element.getCreated());
                element.setOwner((Company) getSite().getSiteContext().getObject(Company.class));
                final ElementFlowlet elementView = getViewSheet().forward(ElementFlowlet.class);
                elementView.edit(element, true);
            }
        });

        final Button editButton = getSite().getButton("edit");
        buttonLayout.addComponent(editButton);
        editButton.addClickListener(new ClickListener() {
            /** Serial version UID. */
            private static final long serialVersionUID = 1L;

            @Override
            public void buttonClick(final ClickEvent event) {
                final Element entity = container.getEntity(grid.getSelectedItemId());
                final ElementFlowlet elementView = getViewSheet().forward(ElementFlowlet.class);
                elementView.edit(entity, false);
            }
        });

        final Button removeButton = getSite().getButton("remove");
        buttonLayout.addComponent(removeButton);
        removeButton.addClickListener(new ClickListener() {
            /** Serial version UID. */
            private static final long serialVersionUID = 1L;

            @Override
            public void buttonClick(final ClickEvent event) {
                final Element element = container.getEntity(grid.getSelectedItemId());

                container.removeItem(grid.getSelectedItemId());
                container.commit();

                final BusClient busClient = ((AgoControlSiteUI) UI.getCurrent()).getBusClient(element.getBus());
                if (busClient != null) {
                    if (busClient.removeElement(element)) {
                        Notification.show("Element removal sent to bus.", Notification.Type.HUMANIZED_MESSAGE);
                    } else {
                        Notification.show("Element removal bus error.", Notification.Type.ERROR_MESSAGE);
                    }
                }
            }
        });

        final Company company = getSite().getSiteContext().getObject(Company.class);
        container.removeDefaultFilters();
        container.addDefaultFilter(new Compare.Equal("owner.companyId", company.getCompanyId()));
        grid.refresh();
    }

    @Override
    public void enter() {
        container.refresh();
    }

}