package mil.nga.giat.geowave.core.store.data.field.base;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
import mil.nga.giat.geowave.core.index.ByteArrayId;
import mil.nga.giat.geowave.core.store.data.field.FieldReader;
import mil.nga.giat.geowave.core.store.data.field.FieldSerializationProviderSpi;
import mil.nga.giat.geowave.core.store.data.field.FieldWriter;
public class PrimitiveIntArraySerializationProvider implements
FieldSerializationProviderSpi<int[]>
{
@Override
public FieldReader<int[]> getFieldReader() {
return new PrimitiveIntArrayReader();
}
@Override
public FieldWriter<Object, int[]> getFieldWriter() {
return new PrimitiveIntArrayWriter();
}
private static class PrimitiveIntArrayReader implements
FieldReader<int[]>
{
@Override
public int[] readField(
final byte[] fieldData ) {
if ((fieldData == null) || (fieldData.length < 4)) {
return null;
}
final IntBuffer buff = ByteBuffer.wrap(
fieldData).asIntBuffer();
final int[] result = new int[buff.remaining()];
buff.get(result);
return result;
}
}
private static class PrimitiveIntArrayWriter implements
FieldWriter<Object, int[]>
{
@Override
public byte[] writeField(
final int[] fieldValue ) {
if (fieldValue == null) {
return new byte[] {};
}
final ByteBuffer buf = ByteBuffer.allocate(4 * fieldValue.length);
for (final int value : fieldValue) {
buf.putInt(value);
}
return buf.array();
}
@Override
public byte[] getVisibility(
final Object rowValue,
final ByteArrayId fieldId,
final int[] fieldValue ) {
return new byte[] {};
}
}
}