xenadmin/XenModel/Actions/Pool/SyncDatabaseAction.cs

/* Copyright (c) Citrix Systems Inc. 
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer. 
 * *   Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE.
 */

using System;
using XenAdmin.Core;
using XenAPI;


namespace XenAdmin.Actions
{
    /// <summary>
    /// Assumes that the sync is being done to commit changed HA settings.
    /// </summary>
    class SyncDatabaseAction : PureAsyncAction
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="pool">May not be null.</param>
        internal SyncDatabaseAction(Pool pool)
            : base(pool.Connection, Messages.SYNCING_DATABASE)
        {
            this.Pool = pool;
        }

        protected override void Run()
        {
            RelatedTask = XenAPI.Pool.async_sync_database(this.Session);
            try
            {
                this.PollToCompletion();
            }
            catch (Failure f)
            {
                if (f.ErrorDescription.Count > 0 && f.ErrorDescription[0] == Failure.HOST_OFFLINE)
                {
                    throw new Exception(String.Format(Messages.HA_SAVE_SETTINGS_FAILED_DEAD_HOSTS, Helpers.GetName(Pool)));
                }
                else
                {
                    throw;
                }
            }

            this.Description = Messages.COMPLETED;
        }
    }
}