/// <summary>
/// Creates and adds many point mappings to ShardMap.
/// </summary>
/// <param name="argsList">List of objects containing information about mappings to be added.</param>
public IEnumerable <PointMapping <TKey> > CreateFromPointMappings(IEnumerable <PointMappingCreationArgs <TKey> > argsList)
{
ExceptionUtils.DisallowNullArgument(argsList, "argsList");
// Partition the mappings by shardlocation.
IDictionary <ShardLocation, IList <PointMapping <TKey> > > pointMappings = new Dictionary <ShardLocation, IList <PointMapping <TKey> > >();
foreach (PointMappingCreationArgs <TKey> args in argsList)
{
ExceptionUtils.DisallowNullArgument(args, "args");
if (!pointMappings.ContainsKey(args.Shard.Location))
{
pointMappings[args.Shard.Location] = new List <PointMapping <TKey> >();
}
pointMappings[args.Shard.Location].Add(new PointMapping <TKey>(this.Manager, this.Id, args));
}
// For each shardlocation bulk add all the mappings to local only.
ConcurrentQueue <Exception> exceptions = new ConcurrentQueue <Exception>();
Parallel.ForEach(pointMappings, (kvp) =>
{
try
{
this.lsm.AddLocals(kvp.Value, kvp.Key);
}
catch (Exception e)
{
exceptions.Enqueue(e);
}
});
if (exceptions.Count > 0)
{
throw new AggregateException(exceptions);
}
// Rebuild the global from locals.
RecoveryManager recoveryManager = this.Manager.GetRecoveryManager();
recoveryManager.RebuildShardMapManager(pointMappings.Keys);
return(pointMappings.Values.SelectMany(x => x.AsEnumerable()));
}
