JMXConnectWithTimeout.java 文件源码

/**
 * JMX连接
 * @param url
 * JMX连接地址
 * @param jmxUser
 * JMX授权用户 null为无授权用户
 * @param jmxPassword
 * JMX授权密码 null为无授权密码
 * @param timeout
 * 超时时间
 * @param unit
 * 超时单位
 * @return
 * @throws IOException
 */
public static JMXConnector connectWithTimeout( final JMXServiceURL url,String jmxUser,String jmxPassword, long timeout, TimeUnit unit) throws Exception {
    final BlockingQueue<Object> blockingQueue = new ArrayBlockingQueue<>(1);
    ExecuteThreadUtil.execute(() -> {
        try {
            JMXConnector connector;
            if(jmxUser != null && jmxPassword != null){
                Map<String,Object> env = new HashMap<>();
                String[] credentials = new String[] { jmxUser, jmxPassword };
                env.put(JMXConnector.CREDENTIALS, credentials);
                connector = JMXConnectorFactory.connect(url,env);
            }else{
                connector = JMXConnectorFactory.connect(url,null);
            }
            if (!blockingQueue.offer(connector))
                connector.close();
        } catch (Throwable t) {
            blockingQueue.offer(t);
        }
    });

    Object result = BlockingQueueUtil.getResult(blockingQueue,timeout,unit);
    blockingQueue.clear();


    if (result instanceof JMXConnector){
        return (JMXConnector) result;
    }else if (result == null){
        throw new SocketTimeoutException("Connect timed out: " + url);
    }else if(result instanceof Throwable){
        throw new IOException("JMX Connect Failed : " + url,((Throwable) result));
    }
    return null;
}