com.alibaba.rocketmq.common.sysflag.TopicSysFlag Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 com.alibaba.rocketmq.common.sysflag;
/**
*
* @author manhong.yqd
*
*/
public class TopicSysFlag {
private final static int FLAG_UNIT = 0x1 << 0;
private final static int FLAG_UNIT_SUB = 0x1 << 1;
public static int buildSysFlag(final boolean unit, final boolean hasUnitSub) {
int sysFlag = 0;
if (unit) {
sysFlag |= FLAG_UNIT;
}
if (hasUnitSub) {
sysFlag |= FLAG_UNIT_SUB;
}
return sysFlag;
}
public static int setUnitFlag(final int sysFlag) {
return sysFlag | FLAG_UNIT;
}
public static int clearUnitFlag(final int sysFlag) {
return sysFlag & (~FLAG_UNIT);
}
public static boolean hasUnitFlag(final int sysFlag) {
return (sysFlag & FLAG_UNIT) == FLAG_UNIT;
}
public static int setUnitSubFlag(final int sysFlag) {
return sysFlag | FLAG_UNIT_SUB;
}
public static int clearUnitSubFlag(final int sysFlag) {
return sysFlag & (~FLAG_UNIT_SUB);
}
public static boolean hasUnitSubFlag(final int sysFlag) {
return (sysFlag & FLAG_UNIT_SUB) == FLAG_UNIT_SUB;
}
public static void main(String[] args) {
System.out.println(0x1 << 0);
System.out.println(0x1 << 1);
}
}