RepositoryStatusCheckMode.java

/**
 * Copyright (c) 2008-2011 Sonatype, Inc.
 * All rights reserved. Includes the third-party code listed at http://www.sonatype.com/products/nexus/attributions.
 *
 * This program is free software: you can redistribute it and/or modify it only under the terms of the GNU Affero General
 * Public License Version 3 as published by the Free Software Foundation.
 *
 * This program 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 Affero General Public License Version 3
 * for more details.
 *
 * You should have received a copy of the GNU Affero General Public License Version 3 along with this program.  If not, see
 * http://www.gnu.org/licenses.
 *
 * Sonatype Nexus (TM) Open Source Version is available from Sonatype, Inc. Sonatype and Sonatype Nexus are trademarks of
 * Sonatype, Inc. Apache Maven is a trademark of the Apache Foundation. M2Eclipse is a trademark of the Eclipse Foundation.
 * All other trademarks are the property of their respective owners.
 */
package org.sonatype.nexus.proxy.repository;

public enum RepositoryStatusCheckMode
{
    /**
     * Nexus will always update the remote status (and autoblock and auto-unblock proxy mode if neded) of all reposes if
     * it is in service. Warning: in this mode, even unused Nexus will do HEAD/GET requests against remote reposes (will
     * produce network traffic) on regular time intervals! To stop checking it, put the repository out of service or
     * change the RepositoryStatusCheckMode to some other mode.
     */
    ALWAYS,

    /**
     * Nexus will ping only those remote hosts that became unavailable and caused a Nexus repository to became
     * AUTO_BLOCKED. It will check the status of remote repo as long until it becomes available (and will auto-unblock
     * it) OR until the user blocks it manually (ie. it is a known fact that a remote repo is down for maintenance for a
     * while) or puts out of service.
     */
    AUTO_BLOCKED_ONLY,

    /**
     * Nexus will never try to discover remote statuses (and never unblock AUTO_BLOCKED) repositories. Users must
     * manage proxy modes manually.
     */
    NEVER;
}