package com.browseengine.bobo.facets.data;
import it.unimi.dsi.fastutil.floats.FloatArrayList;
import java.text.DecimalFormat;
import java.util.Arrays;
import java.util.List;
public class TermFloatList extends TermNumberList<Float>
{
private float[] _elements = null;
public static final float VALUE_MISSING = Float.MIN_VALUE;
private static float parse(String s)
{
if (s == null || s.length() == 0)
{
return 0.0f;
} else
{
return Float.parseFloat(s);
}
}
public TermFloatList()
{
super();
}
public TermFloatList(String formatString)
{
super(formatString);
}
public TermFloatList(int capacity, String formatString)
{
super(capacity, formatString);
}
@Override
public boolean add(String o)
{
return ((FloatArrayList) _innerList).add(parse(o));
}
@Override
protected List<?> buildPrimitiveList(int capacity)
{
_type = Float.class;
return capacity > 0 ? new FloatArrayList(capacity) : new FloatArrayList();
}
@Override
public String get(int index)
{
DecimalFormat formatter = _formatter.get();
if (formatter == null)
return String.valueOf(_elements[index]);
return formatter.format(_elements[index]);
}
public float getPrimitiveValue(int index)
{
if (index < _elements.length)
return _elements[index];
else
return VALUE_MISSING;
}
@Override
public int indexOf(Object o)
{
float val;
if (o instanceof String)
val = parse((String) o);
else
val = (Float)o;
float[] elements = ((FloatArrayList) _innerList).elements();
return Arrays.binarySearch(elements, val);
}
public int indexOf(float o)
{
return Arrays.binarySearch(_elements, o);
}
@Override
public void seal()
{
((FloatArrayList) _innerList).trim();
_elements = ((FloatArrayList) _innerList).elements();
int negativeIndexCheck = 1;
//reverse negative elements, because string order and numeric orders are completely opposite
if (_elements.length > negativeIndexCheck && _elements[negativeIndexCheck] < 0) {
int endPosition = indexOfWithType((short) 0);
if (endPosition < 0) {
endPosition = -1 *endPosition - 1;
}
float tmp;
for (int i = 0; i < (endPosition - negativeIndexCheck) / 2; i++) {
tmp = _elements[i + negativeIndexCheck];
_elements[i + negativeIndexCheck] = _elements[endPosition -i -1];
_elements[endPosition -i -1] = tmp;
}
}
}
@Override
protected Object parseString(String o)
{
return parse(o);
}
public boolean contains(float val)
{
return Arrays.binarySearch(_elements, val) >= 0;
}
@Override
public boolean containsWithType(Float val)
{
return Arrays.binarySearch(_elements, val) >= 0;
}
public boolean containsWithType(float val)
{
return Arrays.binarySearch(_elements, val) >= 0;
}
@Override
public int indexOfWithType(Float o)
{
return Arrays.binarySearch(_elements, o);
}
public int indexOfWithType(float o)
{
return Arrays.binarySearch(_elements, o);
}
@Override
public double getDoubleValue(int index) {
return _elements[index];
}
}