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package org.djutils.serialization.serializers;
import org.djunits.unit.Unit;
import org.djunits.unit.scale.IdentityScale;
import org.djunits.value.ValueRuntimeException;
import org.djunits.value.storage.StorageType;
import org.djunits.value.vfloat.matrix.base.FloatMatrix;
import org.djunits.value.vfloat.matrix.base.FloatMatrixInterface;
import org.djunits.value.vfloat.matrix.data.FloatMatrixData;
import org.djunits.value.vfloat.scalar.base.FloatScalarInterface;
import org.djunits.value.vfloat.vector.base.FloatVectorInterface;
import org.djutils.serialization.EndianUtil;
import org.djutils.serialization.FieldTypes;
import org.djutils.serialization.SerializationException;
/**
* (De)serializes a DJUNITS FloatMatrix.
*
* Copyright (c) 2019-2023 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
* BSD-style license. See DJUNITS License.
*
* @author Alexander Verbraeck
* @param the unit type
* @param the scalar type
* @param the vector type
* @param the matrix type
*/
public class FloatMatrixSerializer, S extends FloatScalarInterface,
V extends FloatVectorInterface, M extends FloatMatrixInterface>
extends ArrayOrMatrixWithUnitSerializer
{
/** */
public FloatMatrixSerializer()
{
super(FieldTypes.FLOAT_32_UNIT_MATRIX, "Djunits_FloatMatrix", 2);
}
/** {@inheritDoc} */
@Override
public int size(final M afm) throws SerializationException
{
try
{
return 4 + 4 + 2 + 4 * afm.rows() * afm.cols();
}
catch (ValueRuntimeException e)
{
throw new SerializationException(e);
}
}
/** {@inheritDoc} */
@Override
public void serialize(final M afm, final byte[] buffer, final Pointer pointer, final EndianUtil endianUtil)
throws SerializationException
{
try
{
endianUtil.encodeInt(afm.rows(), buffer, pointer.getAndIncrement(4));
endianUtil.encodeInt(afm.cols(), buffer, pointer.getAndIncrement(4));
encodeUnit(afm.getDisplayUnit(), buffer, pointer, endianUtil);
for (int i = 0; i < afm.rows(); i++)
{
for (int j = 0; j < afm.cols(); j++)
{
endianUtil.encodeFloat(afm.get(i, j).getSI(), buffer, pointer.getAndIncrement(4));
}
}
}
catch (ValueRuntimeException e)
{
throw new SerializationException(e);
}
}
/** {@inheritDoc} */
@Override
public M deSerialize(final byte[] buffer, final Pointer pointer, final EndianUtil endianUtil) throws SerializationException
{
int height = endianUtil.decodeInt(buffer, pointer.getAndIncrement(4));
int width = endianUtil.decodeInt(buffer, pointer.getAndIncrement(4));
Unit> unit = getUnit(buffer, pointer, endianUtil);
float[][] array = new float[height][width];
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
array[i][j] = endianUtil.decodeFloat(buffer, pointer.getAndIncrement(4));
}
}
try
{
FloatMatrixData fvd = FloatMatrixData.instantiate(array, IdentityScale.SCALE, StorageType.DENSE);
return FloatMatrix.instantiateAnonymous(fvd, unit);
}
catch (ValueRuntimeException exception)
{
throw new SerializationException(exception);
}
}
}