ByteSerializationProvider.java

package mil.nga.giat.geowave.core.store.data.field.base;

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 ByteSerializationProvider implements
		FieldSerializationProviderSpi<Byte>
{
	@Override
	public FieldReader<Byte> getFieldReader() {
		return new ByteReader();
	}

	@Override
	public FieldWriter<Object, Byte> getFieldWriter() {
		return new ByteWriter();
	}

	private static class ByteReader implements
			FieldReader<Byte>
	{
		@Override
		public Byte readField(
				final byte[] fieldData ) {
			if ((fieldData == null) || (fieldData.length < 1)) {
				return null;
			}
			return fieldData[0];
		}
	}

	public static class ByteWriter implements
			FieldWriter<Object, Byte>
	{
		@Override
		public byte[] getVisibility(
				final Object rowValue,
				final ByteArrayId fieldId,
				final Byte fieldValue ) {
			return new byte[] {};
		}

		@Override
		public byte[] writeField(
				final Byte fieldValue ) {
			if (fieldValue == null) {
				return new byte[] {};
			}

			return new byte[] {
				fieldValue
			};
		}
	}
}