com.hazelcast.ascii.memcache.MemcacheCommandProcessor Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.ascii.memcache;
import com.hazelcast.ascii.AbstractTextCommandProcessor;
import com.hazelcast.ascii.TextCommandService;
/**
* User: sancar
* Date: 3/8/13
* Time: 5:33 PM
*/
public abstract class MemcacheCommandProcessor extends AbstractTextCommandProcessor {
public static final String MAP_NAME_PRECEDER = "hz_memcache_";
public static final String DEFAULT_MAP_NAME = "hz_memcache_default";
protected MemcacheCommandProcessor(TextCommandService textCommandService) {
super(textCommandService);
}
public static byte[] longToByteArray(long v) {
long paramV = v;
int len = (int) (paramV / 256) + 1;
final byte[] bytes = new byte[len];
for (int i = len - 1; i >= 0; i--) {
final long t = paramV % 256;
bytes[i] = t < 128 ? (byte) t : (byte) (t - 256);
paramV = (paramV - t) / 256;
}
return bytes;
}
public static int byteArrayToLong(byte[] v) {
if (v.length > 8) {
return -1;
}
int r = 0;
for (int i = 0; i < v.length; i++) {
int t = (int) v[i];
t = t >= 0 ? t : t + 256;
r = r * 256 + t;
}
return r;
}
}