org.smallmind.memcached.cubby.ConnectionMultiplexer Maven / Gradle / Ivy

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/*
 * Copyright (c) 2007 through 2024 David Berkman
 *
 * This file is part of the SmallMind Code Project.
 *
 * The SmallMind Code Project is free software, you can redistribute
 * it and/or modify it under either, at your discretion...
 *
 * 1) The terms of GNU Affero General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * ...or...
 *
 * 2) The terms of the Apache License, Version 2.0.
 *
 * The SmallMind Code Project is distributed in the hope that it will
 * be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License or Apache License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * and the Apache License along with the SmallMind Code Project. If not, see
 *  or .
 *
 * Additional permission under the GNU Affero GPL version 3 section 7
 * ------------------------------------------------------------------
 * If you modify this Program, or any covered work, by linking or
 * combining it with other code, such other code is not for that reason
 * alone subject to any of the requirements of the GNU Affero GPL
 * version 3.
 */
package org.smallmind.memcached.cubby;

import java.io.IOException;
import java.util.concurrent.ThreadLocalRandom;
import org.smallmind.memcached.cubby.command.Command;
import org.smallmind.memcached.cubby.response.Response;

public class ConnectionMultiplexer {

  private final ConnectionCoordinator[] connectionCoordinators;

  public ConnectionMultiplexer (CubbyConfiguration configuration, MemcachedHost... memcachedHosts) {

    connectionCoordinators = new ConnectionCoordinator[configuration.getConnectionsPerHost()];

    for (int index = 0; index < connectionCoordinators.length; index++) {
      connectionCoordinators[index] = new ConnectionCoordinator(configuration, memcachedHosts);
    }
  }

  public synchronized void start ()
    throws InterruptedException, IOException, CubbyOperationException {

    for (ConnectionCoordinator connectionCoordinator : connectionCoordinators) {
      connectionCoordinator.start();
    }
  }

  public synchronized void stop ()
    throws InterruptedException, IOException {

    for (ConnectionCoordinator connectionCoordinator : connectionCoordinators) {
      connectionCoordinator.stop();
    }
  }

  public Response send (Command command, Long timeoutSeconds)
    throws InterruptedException, IOException, CubbyOperationException {

    int index = 0;

    if (connectionCoordinators.length > 1) {
      index = ThreadLocalRandom.current().nextInt(connectionCoordinators.length);
    }

    return connectionCoordinators[index].send(command, timeoutSeconds);
  }
}