/* 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 java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.activiti.engine.ManagementService;
import org.activiti.engine.management.TablePageQuery;
import org.activiti.explorer.data.AbstractLazyLoadingQuery;
import org.activiti.explorer.data.MapItem;
import com.vaadin.data.Item;
/**
* @author Joram Barrez
*/
public class TableDataQuery extends AbstractLazyLoadingQuery {
protected String tableName;
protected ManagementService managementService;
protected Object[] sortPropertyIds;
protected boolean[] sortPropertyIdsAscending;
public TableDataQuery(String tableName, ManagementService managementService) {
this.tableName = tableName;
this.managementService = managementService;
}
public List<Item> loadItems(int start, int count) {
TablePageQuery query = managementService.createTablePageQuery().tableName(tableName);
if (sortPropertyIds != null && sortPropertyIds.length > 0) {
for (int i=0; i<sortPropertyIds.length; i++) {
String column = (String) sortPropertyIds[i]; // all container properties for table data are Strings
if (sortPropertyIdsAscending[i] == true) {
query.orderAsc(column);
} else {
query.orderDesc(column);
}
}
}
List<Map<String, Object>> rows = query.listPage(start, count).getRows();
List<Item> items = new ArrayList<Item>();
for (Map<String, Object> row : rows) {
HashMap<String, Object> newRow = new HashMap<String, Object>();
for( Entry<String,Object> rowEntry : row.entrySet() ) {
String key = rowEntry.getKey();
if( key != null ) {
key = key.toUpperCase();
}
newRow.put( key, rowEntry.getValue() );
}
items.add(new MapItem(newRow));
}
return items;
}
public int size() {
return managementService.getTableCount().get(tableName).intValue();
}
public void setSorting(Object[] propertyId, boolean[] ascending) {
this.sortPropertyIds = propertyId;
this.sortPropertyIdsAscending = ascending;
}
public Item loadSingleResult(String id) {
throw new UnsupportedOperationException();
}
}