/**
* Copyright (C) 2012 JBoss Inc
*
* 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.jboss.dashboard.ui.panel.dataSourceManagement;
import org.jboss.dashboard.commons.cdi.CDIBeanLocator;
import org.jboss.dashboard.database.hibernate.HibernateTxFragment;
import org.hibernate.FlushMode;
import org.hibernate.Query;
import org.hibernate.Session;
import javax.enterprise.context.ApplicationScoped;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* Data source tables manager
*/
@ApplicationScoped
public class DataSourceTableManager {
/**
* Get the singleton instance.
*/
public static DataSourceTableManager lookup() {
return CDIBeanLocator.getBeanByType(DataSourceTableManager.class);
}
public List getSelectedTablesEntries(final String datasource) throws Exception {
final List existingEntries = new ArrayList();
new HibernateTxFragment() {
protected void txFragment(Session session) throws Exception {
Query query = session.createQuery(" from " + DataSourceTableEntry.class.getName() + " entry where entry.datasource = :datasource");
query.setString("datasource", datasource);
query.setCacheable(true);
FlushMode oldFlushMode = session.getFlushMode();
session.setFlushMode(FlushMode.COMMIT);
existingEntries.addAll(query.list());
session.setFlushMode(oldFlushMode);
}
}.execute();
return existingEntries;
}
public List getSelectedTablesName(String datasource) throws Exception {
ArrayList results = new ArrayList();
Iterator it = getSelectedTablesEntries(datasource).iterator();
while(it.hasNext()){
DataSourceTableEntry tableEntry = (DataSourceTableEntry) it.next();
String tableName = tableEntry.getName();
results.add(tableName);
}
return results;
}
public List getSelectedColumnsEntries(final String datasource, final String tableName) throws Exception {
final List existingEntries = new ArrayList();
new HibernateTxFragment() {
protected void txFragment(Session session) throws Exception {
Query query = session.createQuery(" from " + DataSourceColumnEntry.class.getName() + " entry where entry.datasource = :datasource and entry.tableName = :tableName");
query.setString("datasource", datasource);
query.setString("tableName", tableName);
FlushMode oldFlushMode = session.getFlushMode();
session.setFlushMode(FlushMode.NEVER);
query.setCacheable(true);
existingEntries.addAll(query.list());
session.setFlushMode(oldFlushMode);
}
}.execute();
return existingEntries;
}
}