package net.sourceforge.squirrel_sql.plugins.oracle.expander;
/*
* Copyright (C) 2002-2003 Colin Bell
* colbell@users.sourceforge.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import net.sourceforge.squirrel_sql.fw.sql.DatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.sql.IDatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.sql.ISQLConnection;
import net.sourceforge.squirrel_sql.fw.sql.SQLDatabaseMetaData;
import net.sourceforge.squirrel_sql.fw.sql.SQLUtilities;
import net.sourceforge.squirrel_sql.client.session.ISession;
import net.sourceforge.squirrel_sql.client.session.mainpanel.objecttree.INodeExpander;
import net.sourceforge.squirrel_sql.client.session.mainpanel.objecttree.ObjectTreeNode;
import net.sourceforge.squirrel_sql.plugins.oracle.IObjectTypes;
/**
* This class handles the expanding of the "Instance Parent" node. It will give a list of all the instances.
*
* @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
*/
public class InstanceParentExpander implements INodeExpander
{
/** SQL that retrieves the data. */
private static String SQL = "select instance_number, instance_name, host_name, version,"
+ " startup_time, status, parallel, thread#, archiver, log_switch_wait,"
+ " logins, shutdown_pending, database_status, instance_role" + " from sys.v_$instance";
/**
* Default ctor.
*/
public InstanceParentExpander() {
super();
}
/**
* Create the child nodes for the passed parent node and return them. Note that this method should
* <B>not</B> actually add the child nodes to the parent node as this is taken care of in the caller.
*
* @param session
* Current session.
* @param node
* Node to be expanded.
*
* @return A list of <TT>ObjectTreeNode</TT> objects representing the child nodes for the passed node.
*/
public List<ObjectTreeNode> createChildren(ISession session, ObjectTreeNode parentNode)
throws SQLException
{
final List<ObjectTreeNode> childNodes = new ArrayList<ObjectTreeNode>();
final ISQLConnection conn = session.getSQLConnection();
final SQLDatabaseMetaData md = session.getSQLConnection().getSQLMetaData();
PreparedStatement pstmt = null;
ResultSet rs = null;
try
{
pstmt = conn.prepareStatement(SQL);
rs = pstmt.executeQuery();
while (rs.next())
{
IDatabaseObjectInfo doi = new DatabaseObjectInfo(
null, null, rs.getString(1), IObjectTypes.INSTANCE, md);
// final Map map = new HashMap();
// map.put("Instance Number", new Integer(rs.getInt(1)));
// map.put("Name", rs.getString(2));
// map.put("Host Name", rs.getString(3));
// map.put("Version", rs.getString(4));
// map.put("Startup Time", rs.getDate(5));
// map.put("Instance Status", rs.getString(6));
// map.put("Parallel", rs.getString(7));
// map.put("Thread #", new Integer(rs.getInt(8)));
// map.put("Archiver", rs.getString(9));
// map.put("Log Switch Wait", rs.getString(10));
// map.put("Logins", rs.getString(11));
// map.put("Shutdown Pending", rs.getString(12));
// map.put("Database Status", rs.getString(13));
// map.put("Instance Role", rs.getString(14));
childNodes.add(new ObjectTreeNode(session, doi));
}
} finally
{
SQLUtilities.closeResultSet(rs, true);
}
return childNodes;
}
}