import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
private void sshSummary() {
  IoAcceptor acceptor = daemon.getIoAcceptor();
  if (acceptor == null) {
    return;
  }

  long now = TimeUtil.nowMs();
  Collection<IoSession> list = acceptor.getManagedSessions().values();
  long oldest = now;

  for (IoSession s : list) {
    if (s instanceof MinaSession) {
      MinaSession minaSession = (MinaSession) s;
      oldest = Math.min(oldest, minaSession.getSession().getCreationTime());
    }
  }

  stdout.format(
      "SSH:   %4d  users, oldest session started %s ago\n", list.size(), uptime(now - oldest));
}
 

import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
@Override
protected void run() throws Failure {
  IoAcceptor acceptor = sshDaemon.getIoAcceptor();
  if (acceptor == null) {
    throw new Failure(1, "fatal: sshd no longer running");
  }
  for (String sessionId : sessionIds) {
    boolean connectionFound = false;
    int id = (int) Long.parseLong(sessionId, 16);
    for (IoSession io : acceptor.getManagedSessions().values()) {
      AbstractSession serverSession = AbstractSession.getSession(io, true);
      SshSession sshSession =
          serverSession != null ? serverSession.getAttribute(SshSession.KEY) : null;
      if (sshSession != null && sshSession.getSessionId() == id) {
        connectionFound = true;
        stdout.println("closing connection " + sessionId + "...");
        CloseFuture future = io.close(true);
        if (wait) {
          try {
            future.await();
            stdout.println("closed connection " + sessionId);
          } catch (IOException e) {
            log.warn("Wait for connection to close interrupted: " + e.getMessage());
          }
        }
        break;
      }
    }
    if (!connectionFound) {
      stderr.print("close connection " + sessionId + ": no such connection\n");
    }
  }
}
 

import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
private String getBackend() {
  IoAcceptor acceptor = daemon.getIoAcceptor();
  if (acceptor == null) {
    return "";
  } else if (acceptor instanceof MinaAcceptor) {
    return "mina";
  } else if (acceptor instanceof Nio2Acceptor) {
    return "nio2";
  } else {
    return "unknown";
  }
}
 

import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
public IoAcceptor getIoAcceptor() {
    return daemonAcceptor;
}
 

import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
@Override
public IoAcceptor createAcceptor(IoHandler handler) {
  return new NettyIoAcceptor(this, handler);
}
 

import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
@Override
public IoAcceptor createAcceptor(IoHandler handler) {
  return new NettyIoAcceptor(factory, handler);
}
 

import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
public IoAcceptor getIoAcceptor() {
  return daemonAcceptor;
}
 

import org.apache.sshd.common.io.IoAcceptor; //导入依赖的package包/类
@Override
public IoAcceptor createAcceptor(FactoryManager manager, IoHandler handler) {
    return new SharedExecutorMinaAcceptor(executor, ioProcessor, manager, handler);
}