com.alibaba.rocketmq.common.sysflag.PullSysFlag 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 shijia.wxr
*/
public class PullSysFlag {
private final static int FLAG_COMMIT_OFFSET = 0x1 << 0;
private final static int FLAG_SUSPEND = 0x1 << 1;
private final static int FLAG_SUBSCRIPTION = 0x1 << 2;
private final static int FLAG_CLASS_FILTER = 0x1 << 3;
public static int buildSysFlag(final boolean commitOffset, final boolean suspend,
final boolean subscription, final boolean classFilter) {
int flag = 0;
if (commitOffset) {
flag |= FLAG_COMMIT_OFFSET;
}
if (suspend) {
flag |= FLAG_SUSPEND;
}
if (subscription) {
flag |= FLAG_SUBSCRIPTION;
}
if (classFilter) {
flag |= FLAG_CLASS_FILTER;
}
return flag;
}
public static int clearCommitOffsetFlag(final int sysFlag) {
return sysFlag & (~FLAG_COMMIT_OFFSET);
}
public static boolean hasCommitOffsetFlag(final int sysFlag) {
return (sysFlag & FLAG_COMMIT_OFFSET) == FLAG_COMMIT_OFFSET;
}
public static boolean hasSuspendFlag(final int sysFlag) {
return (sysFlag & FLAG_SUSPEND) == FLAG_SUSPEND;
}
public static boolean hasSubscriptionFlag(final int sysFlag) {
return (sysFlag & FLAG_SUBSCRIPTION) == FLAG_SUBSCRIPTION;
}
public static boolean hasClassFilterFlag(final int sysFlag) {
return (sysFlag & FLAG_CLASS_FILTER) == FLAG_CLASS_FILTER;
}
}