com.alipay.remoting.util.GlobalSwitch Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bolt Show documentation

a light weight, easy to use and high performance remoting framework based on netty.

There is a newer version: 1.6.11

/*
 * 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.alipay.remoting.util;

import java.util.BitSet;

import com.alipay.remoting.SystemProperties;

/**
 * Global switches used in client or server
 * 
 * NOTICE:

 * 1. system settings will take effect in all bolt client or server instances in one process

 * 2. user settings will only take effect in the current instance of bolt client or server.
 * 
 *
 * @author tsui
 * @version $Id: GlobalSwitch.java, v 0.1 2017-08-03 15:50 tsui Exp $
 */
public class GlobalSwitch implements Switch {

    // switches
    public static final int CONN_RECONNECT_SWITCH           = 0;
    public static final int CONN_MONITOR_SWITCH             = 1;
    public static final int SERVER_MANAGE_CONNECTION_SWITCH = 2;
    public static final int SERVER_SYNC_STOP                = 3;

    /** system settings */
    private static BitSet   systemSettings                  = new BitSet();

    /** user settings */
    private BitSet          userSettings                    = new BitSet();

    /**
     * init system switch status according to system properties
     */
    static {
        init();
    }

    private static void init() {
        if (SystemProperties.conn_reconnect_switch()) {
            systemSettings.set(CONN_RECONNECT_SWITCH);
        } else {
            systemSettings.clear(CONN_RECONNECT_SWITCH);
        }

        if (SystemProperties.conn_monitor_switch()) {
            systemSettings.set(CONN_MONITOR_SWITCH);
        } else {
            systemSettings.clear(CONN_MONITOR_SWITCH);
        }
    }

    // ~~~ public methods

    @Override
    public void turnOn(int switchIndex) {
        this.userSettings.set(switchIndex);
    }

    @Override
    public boolean isOn(int switchIndex) {
        return systemSettings.get(switchIndex) || this.userSettings.get(switchIndex);
    }

    // ~~~ test case use only
    /**
     * Reinit system settings. For test case use only
     */
    public static void reinit() {
        init();
    }
}