/tags/1.2.0/commons/src/main/java/com/orientechnologies/common/serialization/types/OIntegerSerializer.java

/*

 * Copyright 2010-2012 Luca Garulli (l.garulli--at--orientechnologies.com)

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



package com.orientechnologies.common.serialization.types;



import com.orientechnologies.common.serialization.OBinaryConverter;

import com.orientechnologies.common.serialization.OBinaryConverterFactory;



/**

 * Serializer for {@link Integer} type.

 * 

 * @author ibershadskiy <a href="mailto:ibersh20@gmail.com">Ilya Bershadskiy</a>

 * @since 17.01.12

 */

public class OIntegerSerializer implements OBinarySerializer<Integer> {

  private static final OBinaryConverter CONVERTER = OBinaryConverterFactory.getConverter();



  public static OIntegerSerializer      INSTANCE  = new OIntegerSerializer();

  public static final byte              ID        = 8;



  /**

   * size of int value in bytes

   */

  public static final int               INT_SIZE  = 4;



  public int getObjectSize(Integer object) {

    return INT_SIZE;

  }



  public void serialize(Integer object, byte[] stream, int startPosition) {

    final int value = object;

    stream[startPosition] = (byte) ((value >>> 24) & 0xFF);

    stream[startPosition + 1] = (byte) ((value >>> 16) & 0xFF);

    stream[startPosition + 2] = (byte) ((value >>> 8) & 0xFF);

    stream[startPosition + 3] = (byte) ((value >>> 0) & 0xFF);



  }



  public Integer deserialize(byte[] stream, int startPosition) {

    return (stream[startPosition]) << 24 | (0xff & stream[startPosition + 1]) << 16 | (0xff & stream[startPosition + 2]) << 8

        | ((0xff & stream[startPosition + 3]));

  }



  public int getObjectSize(byte[] stream, int startPosition) {

    return INT_SIZE;

  }



  public byte getId() {

    return ID;

  }



  public int getObjectSizeNative(byte[] stream, int startPosition) {

    return INT_SIZE;

  }



  public void serializeNative(Integer object, byte[] stream, int startPosition) {

    CONVERTER.putInt(stream, startPosition, object);

  }



  public Integer deserializeNative(byte[] stream, int startPosition) {

    return CONVERTER.getInt(stream, startPosition);

  }



  public boolean isFixedLength() {

    return true;

  }



  public int getFixedLength() {

    return INT_SIZE;

  }



}