/*
* Copyright 2016 The Netty Project
*
* The Netty Project licenses this file to you 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 io.netty.handler.codec.redis;
import io.netty.util.CharsetUtil;
import io.netty.util.internal.PlatformDependent;
/**
* Utilities for codec-redis.
*/
final class RedisCodecUtil {
private RedisCodecUtil() {
}
static byte[] longToAsciiBytes(long value) {
return Long.toString(value).getBytes(CharsetUtil.US_ASCII);
}
/**
* Returns a {@code short} value using endian order.
*/
static short makeShort(char first, char second) {
return PlatformDependent.BIG_ENDIAN_NATIVE_ORDER ?
(short) ((second << 8) | first) : (short) ((first << 8) | second);
}
/**
* Returns a {@code byte[]} of {@code short} value. This is opposite of {@code makeShort()}.
*/
static byte[] shortToBytes(short value) {
byte[] bytes = new byte[2];
if (PlatformDependent.BIG_ENDIAN_NATIVE_ORDER) {
bytes[1] = (byte) ((value >> 8) & 0xff);
bytes[0] = (byte) (value & 0xff);
} else {
bytes[0] = (byte) ((value >> 8) & 0xff);
bytes[1] = (byte) (value & 0xff);
}
return bytes;
}
}