Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2013 NGDATA nv
 *
 * 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.
 */

import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;

public class Main {
    public static void waitOnAllReplicationPeersStopped() {
        long tryUntil = System.currentTimeMillis() + 60000L;
        boolean waited = false;
        while (threadExists(".replicationSource,")) {
            waited = true;
            if (System.currentTimeMillis() > tryUntil) {
                throw new RuntimeException("Replication threads didn't stop within timeout.");
            }
            System.out.print("\nWaiting for replication sources to be stopped...");
            try {
                Thread.sleep(50);
            } catch (InterruptedException e) {
                // I don't expect this
                throw new RuntimeException(e);
            }
        }

        if (waited) {
            System.out.println("done");
        }
    }

    private static boolean threadExists(String namepart) {
        ThreadMXBean threadmx = ManagementFactory.getThreadMXBean();
        ThreadInfo[] infos = threadmx.getThreadInfo(threadmx.getAllThreadIds());
        for (ThreadInfo info : infos) {
            if (info != null) { // see javadoc getThreadInfo (thread can have disappeared between the two calls)
                if (info.getThreadName().contains(namepart)) {
                    return true;
                }
            }
        }
        return false;
    }
}