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/*
* DISCLAIMER
*
* Copyright 2016 ArangoDB GmbH, Cologne, Germany
*
* 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.
*
* Copyright holder is ArangoDB GmbH, Cologne, Germany
*/
package com.arangodb.velocypack.internal.util;
/**
* @author Mark Vollmary
*
*/
public class ObjectArrayUtil {
private static final int[] FIRST_SUB_MAP = {
0, // 0x00 None
1, // 0x01 empty array
2, // 0x02 array without index table
3, // 0x03 array without index table
5, // 0x04 array without index table
9, // 0x05 array without index table
3, // 0x06 array with index table
5, // 0x07 array with index table
9, // 0x08 array with index table
9, // 0x09 array with index table
1, // 0x0a empty object
3, // 0x0b object with sorted index table
5, // 0x0c object with sorted index table
9, // 0x0d object with sorted index table
9, // 0x0e object with sorted index table
3, // 0x0f object with unsorted index table
5, // 0x10 object with unsorted index table
9, // 0x11 object with unsorted index table
9 // 0x12 object with unsorted index table
};
public static int getFirstSubMap(final byte key) {
return FIRST_SUB_MAP[key & 0xff];
}
private static final int[] OFFSET_SIZE = {
0, // 0x00 None
1, // 0x01 empty array
1, // 0x02 array without index table
2, // 0x03 array without index table
4, // 0x04 array without index table
8, // 0x05 array without index table
1, // 0x06 array with index table
2, // 0x07 array with index table
4, // 0x08 array with index table
8, // 0x09 array with index table
1, // 0x0a empty object
1, // 0x0b object with sorted index table
2, // 0x0c object with sorted index table
4, // 0x0d object with sorted index table
8, // 0x0e object with sorted index table
1, // 0x0f object with unsorted index table
2, // 0x10 object with unsorted index table
4, // 0x11 object with unsorted index table
8 // 0x12 object with unsorted index table
};
private ObjectArrayUtil() {
super();
}
public static int getOffsetSize(final byte key) {
return OFFSET_SIZE[key & 0xff];
}
}
