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 * *   Redistributions of source code must retain the above 
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 *     following disclaimer. 
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 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
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 * 
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
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 */

using System;
using System.Collections.Generic;

namespace XenAPI
{
    public partial class VBD : IComparable<VBD>
    {

        public bool IsCDROM()
        {
            return this.type == XenAPI.vbd_type.CD;
        }

        public override string ToString()
        {
            if (VDI != null)
                return Connection.Resolve<VDI>(VDI).name_label;

            return "";
        }

        // TODO: If we get floppy disk support extend the enum and fix this check to enable floppy disk drives in MultipleDvdIsoList.cs
        public bool IsFloppyDrive()
        {
            return false;
        }

        public VBD FindVMCDROM(VM vm)
        {
            if (vm == null)
                return null;

            List<VBD> vbds = vm.Connection.ResolveAll(vm.VBDs).FindAll(vbd => vbd.IsCDROM());

            if (vbds.Count > 0)
            {
                vbds.Sort();
                return vbds[0];
            }
            else
            {
                return null;
            }
        }

        public bool GetIsOwner()
        {
            return other_config != null && other_config.ContainsKey("owner");
        }

        public void SetIsOwner(bool value)
        {
            _other_config = SetDictionaryKey(other_config, "owner", value ? "true" : null);
        }

        public int GetIoNice()
        {
            if (qos_algorithm_params != null && qos_algorithm_params.ContainsKey("class"))
                return int.Parse(qos_algorithm_params["class"]);
            else
                return 0;
        }

        public void SetIoNice(int value)
        {
            // set the IO scheduling algorithm to use
            qos_algorithm_type = "ionice";

            // which scheduling class ionice should use
            // best-effort for now (other options are 'rt' and 'idle')

            qos_algorithm_params = SetDictionaryKeys(qos_algorithm_params,
                new KeyValuePair<string, string>("class", value.ToString()),
                new KeyValuePair<string, string>("sched", "be"));
        }

        public bool IsReadOnly()
        {
            return mode == vbd_mode.RO;
        }

        public override int CompareTo(VBD other)
        {
            return userdevice.CompareTo(other.userdevice);
        }
    }
}
