/* 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.activiti.explorer.ui.management.db;
import org.activiti.engine.ManagementService;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.management.TableMetaData;
import org.activiti.explorer.ExplorerApp;
import org.activiti.explorer.I18nManager;
import org.activiti.explorer.Messages;
import org.activiti.explorer.data.LazyLoadingContainer;
import org.activiti.explorer.data.LazyLoadingQuery;
import org.activiti.explorer.ui.Images;
import org.activiti.explorer.ui.custom.DetailPanel;
import org.activiti.explorer.ui.mainlayout.ExplorerLayout;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Embedded;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.Table;
import com.vaadin.ui.themes.Reindeer;
/**
* @author Joram Barrez
*/
public class DatabaseDetailPanel extends DetailPanel {
private static final long serialVersionUID = 1L;
protected transient ManagementService managementService;
protected I18nManager i18nManager;
protected String tableName;
public DatabaseDetailPanel(String tableName) {
this.tableName = tableName;
this.managementService = ProcessEngines.getDefaultProcessEngine().getManagementService();
this.i18nManager = ExplorerApp.get().getI18nManager();
addStyleName(Reindeer.LAYOUT_WHITE);
setSizeFull();
addTableName();
addTableData();
}
protected void addTableName() {
HorizontalLayout header = new HorizontalLayout();
header.setWidth(100, UNITS_PERCENTAGE);
header.addStyleName(ExplorerLayout.STYLE_TITLE_BLOCK);
header.setSpacing(true);
// TODO: use right image
Embedded image = new Embedded(null, Images.DATABASE_50);
header.addComponent(image);
header.setComponentAlignment(image, Alignment.MIDDLE_LEFT);
header.setMargin(false, false, true, false);
Label name = new Label(tableName);
name.addStyleName(Reindeer.LABEL_H2);
header.addComponent(name);
header.setExpandRatio(name, 1.0f);
header.setComponentAlignment(name, Alignment.MIDDLE_LEFT);
addDetailComponent(header);
Label spacer = new Label();
spacer.setWidth(100, UNITS_PERCENTAGE);
spacer.addStyleName(ExplorerLayout.STYLE_DETAIL_BLOCK);
addDetailComponent(spacer);
}
protected void addTableData() {
LazyLoadingQuery lazyLoadingQuery = new TableDataQuery(tableName, managementService);
LazyLoadingContainer lazyLoadingContainer = new LazyLoadingContainer(lazyLoadingQuery, 30);
if (lazyLoadingContainer.size() > 0) {
Table data = new Table();
data.setContainerDataSource(lazyLoadingContainer);
data.setEditable(false);
data.setSelectable(true);
data.setColumnReorderingAllowed(true);
if (lazyLoadingQuery.size() < 10) {
data.setPageLength(0);
} else {
data.setPageLength(10);
}
addDetailComponent(data);
data.setWidth(100, UNITS_PERCENTAGE);
data.setHeight(100, UNITS_PERCENTAGE);
data.addStyleName(ExplorerLayout.STYLE_DATABASE_TABLE);
setDetailExpandRatio(data, 1.0f);
// Create column headers
TableMetaData metaData = managementService.getTableMetaData(tableName);
for (String columnName : metaData.getColumnNames()) {
data.addContainerProperty(columnName, String.class, null);
}
} else {
Label noDataLabel = new Label(i18nManager.getMessage(Messages.DATABASE_NO_ROWS));
noDataLabel.addStyleName(Reindeer.LABEL_SMALL);
addDetailComponent(noDataLabel);
setDetailExpandRatio(noDataLabel, 1.0f);
}
}
}