http client 中的 connectionRequestTimeout, connectTimeout, socketTimeout

* Returns the timeout in milliseconds used when requesting a connection
     * from the connection manager. A timeout value of zero is interpreted
     * as an infinite timeout.
     * <p/>
     * A timeout value of zero is interpreted as an infinite timeout.
     * A negative value is interpreted as undefined (system default).
     * <p/>
     * Default: <code>-1</code>

 final int timeout = config.getConnectionRequestTimeout();
            managedConn = connRequest.get(timeout > 0 ? timeout : 0, TimeUnit.MILLISECONDS);

  Date deadline = null;
        if (timeout > 0) {
            deadline = new Date (System.currentTimeMillis() + timeUnit.toMillis(timeout));
        }
   // 设置超时     
    if (deadline != null) {
                        success = this.condition.awaitUntil(deadline);
                    } else {
                        this.condition.await();
                        success = true;
                    }      
                    

  this.condition = this.lock.newCondition();
   public boolean cancel(final boolean mayInterruptIfRunning) {
                if (done.compareAndSet(false, true)) {
                    cancelled.set(true);
                    lock.lock();
                    try {
                        condition.signalAll();
                    } finally {
                        lock.unlock();
                    }
                    if (callback != null) {
                        callback.cancelled();
                    }
                    return true;
                }
                return false;
            }
以及
public void release(final E entry, final boolean reusable) {
        this.lock.lock();
        try {
            if (this.leased.remove(entry)) {
                if (future != null) {
                    this.condition.signalAll();
                }
            }
        } finally {
            this.lock.unlock();
        }
    }

 socket.connect(new InetSocketAddress("127.0.0.1", 8089), 1000);

 final int timeout = config.getConnectTimeout();
  final int timeout = config.getConnectTimeout();

final int timeout = config.getSocketTimeout();
                if (timeout >= 0) {
                    managedConn.setSocketTimeout(timeout);
                }

      this.socket.setSoTimeout(timeout);