/*******************************************************************************
* Copyright (c) 2001-2005 Sasa Markovic and Ciaran Treanor.
* Copyright (c) 2011 The OpenNMS Group, Inc.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*******************************************************************************/
package org.jrobin.inspector;
import org.jrobin.core.RrdDb;
import org.jrobin.core.Datasource;
import org.jrobin.core.RrdException;
import javax.swing.table.AbstractTableModel;
import java.io.IOException;
import java.io.File;
class DatasourceTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
private static final Object[] DESCRIPTIONS = {
"name", "type", "heartbeat", "min value",
"max value", "last value", "accum. value", "NaN seconds"
};
private static final String[] COLUMN_NAMES = {
"description", "value"
};
private File file;
private Object[] values;
private int dsIndex = -1;
public int getRowCount() {
return DESCRIPTIONS.length;
}
public int getColumnCount() {
return COLUMN_NAMES.length;
}
public Object getValueAt(int rowIndex, int columnIndex) {
if (columnIndex == 0) {
return DESCRIPTIONS[rowIndex];
}
else if (columnIndex == 1) {
if (values != null) {
return values[rowIndex];
}
else {
return "--";
}
}
return null;
}
public String getColumnName(int column) {
return COLUMN_NAMES[column];
}
public boolean isCellEditable(int rowIndex, int columnIndex) {
return false;
}
void setFile(File newFile) {
file = newFile;
setIndex(-1);
}
void setIndex(int newDsIndex) {
if (dsIndex != newDsIndex) {
dsIndex = newDsIndex;
values = null;
if (dsIndex >= 0) {
try {
RrdDb rrd = new RrdDb(file.getAbsolutePath(), true);
try {
Datasource ds = rrd.getDatasource(dsIndex);
values = new Object[] {
ds.getDsName(),
ds.getDsType(),
"" + ds.getHeartbeat(),
InspectorModel.formatDouble(ds.getMinValue()),
InspectorModel.formatDouble(ds.getMaxValue()),
InspectorModel.formatDouble(ds.getLastValue()),
InspectorModel.formatDouble(ds.getAccumValue()),
"" + ds.getNanSeconds()
};
}
finally {
rrd.close();
}
}
catch (IOException e) {
Util.error(null, e);
}
catch (RrdException e) {
Util.error(null, e);
}
}
fireTableDataChanged();
}
}
}