/*
* This file is part of the HyperGraphDB source distribution. This is copyrighted
* software. For permitted uses, licensing options and redistribution, please see
* the LicensingInformation file at the root level of the distribution.
*
* Copyright (c) 2005-2010 Kobrix Software, Inc. All rights reserved.
*/
package org.hypergraphdb.type.javaprimitive;
import org.hypergraphdb.HGException;
import org.hypergraphdb.HGHandle;
import org.hypergraphdb.HGPersistentHandle;
import org.hypergraphdb.IncidenceSetRef;
import org.hypergraphdb.LazyRef;
public class FloatPrimitiveArrayType extends PrimitiveArrayType
{
public Object make(HGPersistentHandle handle, LazyRef<HGHandle[]> targetSet, IncidenceSetRef incidenceSet)
{
byte [] data = hg.getStore().getData(handle);
if (data == null)
throw new HGException("Could not find value for float array, handle=" + handle.toString());
float [] result = new float[(data.length - 1)/ 4];
for (int i = 0; i < result.length; i++)
{
int j = 4 * i + 1;
int fi = ((data[j + 3] & 0xFF) << 0) +
((data[j + 2] & 0xFF) << 8) +
((data[j + 1] & 0xFF) << 16) +
((data[j + 0]) << 24);
result[i] = Float.intBitsToFloat(fi);
}
return result;
}
public HGPersistentHandle store(Object instance)
{
float [] A = (float [])instance;
byte [] data = new byte[A.length * 4 + 1];
data[0] = (byte)(A.length == 0 ? 0 : 1);
for (int i = 0; i < A.length; i++)
{
int fi = Float.floatToIntBits(A[i]);
int j = 4 * i + 1;
data[j + 3] = (byte) (fi >>> 0);
data[j + 2] = (byte) (fi >>> 8);
data[j + 1] = (byte) (fi >>> 16);
data[j] = (byte) (fi >>> 24);
}
return hg.getStore().store(data);
}
}