Java tutorial
/** * 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.hoot; import com.vaadin.ui.*; import org.bubblecloud.ilves.component.grid.FieldDescriptor; import org.bubblecloud.ilves.util.ContainerUtil; import org.hoot.model.Entry; import com.vaadin.data.util.filter.Compare; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; import org.vaadin.addons.lazyquerycontainer.LazyEntityContainer; import org.bubblecloud.ilves.component.flow.AbstractFlowlet; import org.bubblecloud.ilves.component.grid.FilterDescriptor; import org.bubblecloud.ilves.component.grid.FormattingTable; import org.bubblecloud.ilves.component.grid.Grid; import org.bubblecloud.ilves.model.Company; import javax.persistence.EntityManager; import java.util.ArrayList; import java.util.Date; import java.util.List; /** * Entry list Flowlet. * * @author Tommi S.E. Laukkanen */ public final class EntriesFlowlet extends AbstractFlowlet { /** Serial version UID. */ private static final long serialVersionUID = 1L; /** The container. */ private LazyEntityContainer<Entry> container; /** The grid. */ private Grid grid; @Override public String getFlowletKey() { return "entries"; } @Override public boolean isDirty() { return false; } @Override public boolean isValid() { return true; } @Override public void initialize() { final List<FieldDescriptor> fieldDescriptors = HootFields.getFieldDescriptors(Entry.class); final List<FilterDescriptor> filterDefinitions = new ArrayList<FilterDescriptor>(); filterDefinitions.add(new FilterDescriptor("basename", "basename", "Basename", new TextField(), 200, "like", String.class, "")); filterDefinitions.add(new FilterDescriptor("language", "language", "Language", new TextField(), 30, "=", String.class, "")); filterDefinitions.add( new FilterDescriptor("country", "country", "Country", new TextField(), 30, "=", String.class, "")); filterDefinitions .add(new FilterDescriptor("key", "key", "Key", new TextField(), 200, "like", String.class, "")); filterDefinitions.add( new FilterDescriptor("value", "value", "Value", new TextField(), 200, "like", String.class, "")); final EntityManager entityManager = getSite().getSiteContext().getObject(EntityManager.class); container = new LazyEntityContainer<Entry>(entityManager, true, true, false, Entry.class, 1000, new String[] { "basename", "key", "language", "country" }, new boolean[] { true, true, true, true }, "entryId"); 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("entryId", true); table.setColumnCollapsed("path", true); table.setColumnCollapsed("created", true); table.setColumnCollapsed("modified", true); grid.setHeight(UI.getCurrent().getPage().getBrowserWindowHeight() - 250, Unit.PIXELS); 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 Entry entry = new Entry(); entry.setCreated(new Date()); entry.setModified(entry.getCreated()); entry.setOwner((Company) getSite().getSiteContext().getObject(Company.class)); final EntryFlowlet entryView = getFlow().forward(EntryFlowlet.class); entryView.edit(entry, 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 Entry entity = container.getEntity(grid.getSelectedItemId()); final EntryFlowlet entryView = getFlow().forward(EntryFlowlet.class); entryView.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 Entry entity = container.getEntity(grid.getSelectedItemId()); entity.setDeleted(new Date()); entity.setAuthor(getSite().getSecurityProvider().getUser()); entityManager.getTransaction().begin(); try { entityManager.persist(entityManager.merge(entity)); entityManager.getTransaction().commit(); } catch (final Exception e) { if (entityManager.getTransaction().isActive()) { entityManager.getTransaction().rollback(); } throw new RuntimeException(e); } container.refresh(); } }); final Button unRemoveButton = getSite().getButton("unremove"); buttonLayout.addComponent(unRemoveButton); unRemoveButton.addClickListener(new ClickListener() { /** Serial version UID. */ private static final long serialVersionUID = 1L; @Override public void buttonClick(final ClickEvent event) { final Entry entity = container.getEntity(grid.getSelectedItemId()); entity.setDeleted(null); entity.setAuthor(getSite().getSecurityProvider().getUser()); entityManager.getTransaction().begin(); try { entityManager.persist(entityManager.merge(entity)); entityManager.getTransaction().commit(); } catch (final Exception e) { if (entityManager.getTransaction().isActive()) { entityManager.getTransaction().rollback(); } throw new RuntimeException(e); } container.refresh(); } }); /* final Button permanentRemoveButton = getSite().getButton("permanent-remove"); buttonLayout.addComponent(permanentRemoveButton); permanentRemoveButton.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; @Override public void buttonClick(final ClickEvent event) { final Entry entity = container.getEntity(grid.getSelectedItemId()); entity.setDeleted(null); entityManager.getTransaction().begin(); try { entityManager.remove(entityManager.merge(entity)); entityManager.getTransaction().commit(); } catch (final Exception e) { if (entityManager.getTransaction().isActive()) { entityManager.getTransaction().rollback(); } throw new RuntimeException(e); } container.refresh(); } }); */ final Button synchronizeButton = getSite().getButton("synchronize"); buttonLayout.addComponent(synchronizeButton); synchronizeButton.addClickListener(new ClickListener() { /** Serial version UID. */ private static final long serialVersionUID = 1L; @Override public void buttonClick(final ClickEvent event) { HootSynchronizer.startSynchronize(); } }); 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(); } }