package net.sourceforge.squirrel_sql.client.session.mainpanel.overview.datascale;
import net.sourceforge.squirrel_sql.fw.datasetviewer.ColumnDisplayDefinition;
import java.util.Comparator;
import java.util.List;
public class DoubleIndexedColumn extends IndexedColumn
{
private DoubleRange _doubleRange = new DoubleRange();
public DoubleIndexedColumn(List<Object[]> rows, int colIx, ColumnDisplayDefinition colDef)
{
super(rows, colIx, colDef);
Comparator comparator = new Comparator<Object>()
{
@Override
public int compare(Object ix1, Object ix2)
{
if( ix1 instanceof NoIx && ix2 instanceof NoIx)
{
return compareDouble(((NoIx) ix1).get(), ((NoIx) ix2).get());
}
else if(ix1 instanceof NoIx)
{
return compareDouble(((NoIx) ix1).get(), getRow((Integer) ix2));
}
else if(ix2 instanceof NoIx)
{
return compareDouble(getRow((Integer) ix1), ((NoIx) ix2).get());
}
else
{
return compareDouble(getRow((Integer) ix1), getRow((Integer) ix2));
}
}
};
_doubleRange.beginInit();
sortIx(comparator);
_doubleRange.endInit();
}
private int compareDouble(Object o1, Object o2)
{
Double d1 = null;
if (null != o1)
{
d1 = ((Number)o1).doubleValue();
}
Double d2 = null;
if (null != o2)
{
d2 = ((Number)o2).doubleValue();
}
_doubleRange.init(d1);
_doubleRange.init(d2);
if(d1 == null && d2 != null)
{
return -1;
}
else if(d1 != null && d2 == null)
{
return 1;
}
else if(d1 == null && d2 == null)
{
return 0;
}
return d1.compareTo(d2);
}
@Override
public Calculator getCalculator()
{
return new Calculator()
{
@Override
public Object getMid(Object min, Object max)
{
return onGetMid(min, max);
}
};
}
private Object onGetMid(Object min, Object max)
{
Double doubleMin;
if(null == min)
{
doubleMin = _doubleRange.getMin() - 1;
}
else
{
doubleMin = ((Number)min).doubleValue();
}
Double doubleMax;
if(null == max)
{
doubleMax = _doubleRange.getMin() - 1;
}
else
{
doubleMax = ((Number)max).doubleValue();
}
return doubleMin + ((doubleMax - doubleMin) / 2);
}
private static class DoubleRange
{
private double _max = 0;
private double _min = 0;
private boolean _initializing;
private boolean _isInit;
public void init(Double d)
{
if(false == _initializing)
{
return;
}
if(null == d)
{
return;
}
if(false == _isInit)
{
_min = d;
_max = d;
_isInit = true;
}
_min = Math.min(_min, d);
_max = Math.max(_max, d);
}
public double getMin()
{
return _min;
}
void beginInit()
{
_initializing = true;
}
void endInit()
{
_initializing = false;
}
}
}