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package org.mongodb.morphia.converters;
import org.mongodb.morphia.mapping.MappedField;
import java.lang.reflect.Array;
import java.util.List;
/**
* @author Uwe Schaefer, ([email protected])
* @author scotthernandez
*/
public class FloatConverter extends TypeConverter implements SimpleValueConverter {
/**
* Creates the Converter.
*/
public FloatConverter() {
super(float.class, Float.class, float[].class, Float[].class);
}
@Override
public Object decode(final Class targetClass, final Object val, final MappedField optionalExtraInfo) {
if (val == null) {
return null;
}
if (val instanceof Float) {
return val;
}
if (val instanceof Number) {
return ((Number) val).floatValue();
}
if (val instanceof List) {
final Class type = targetClass.isArray() ? targetClass.getComponentType() : targetClass;
return convertToArray(type, (List) val);
}
return Float.parseFloat(val.toString());
}
private Object convertToArray(final Class type, final List values) {
final Object array = Array.newInstance(type, values.size());
try {
return values.toArray((Object[]) array);
} catch (Exception e) {
for (int i = 0; i < values.size(); i++) {
Array.set(array, i, decode(Float.class, values.get(i)));
}
return array;
}
}
}