public void LockMapping(PointMapping <TKey> mapping, MappingLockToken mappingLockToken)
{
ExceptionUtils.DisallowNullArgument(mapping, "mapping");
ExceptionUtils.DisallowNullArgument(mappingLockToken, "mappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
// Generate a lock owner id
Guid lockOwnerId = mappingLockToken.LockOwnerId;
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.ListShardMap,
"Lock", "Start; LockOwnerId: {0}", lockOwnerId);
Stopwatch stopwatch = Stopwatch.StartNew();
_lsm.LockOrUnlockMappings(mapping, lockOwnerId, LockOwnerIdOpType.Lock);
stopwatch.Stop();
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.ListShardMap,
"Lock", "Complete; Duration: {0}; StoreLockOwnerId: {1}",
stopwatch.Elapsed, lockOwnerId);
}
}
public RangeMapping <TKey> MergeMappings(RangeMapping <TKey> left, RangeMapping <TKey> right,
MappingLockToken leftMappingLockToken, MappingLockToken rightMappingLockToken)
{
ExceptionUtils.DisallowNullArgument(left, "left");
ExceptionUtils.DisallowNullArgument(right, "right");
ExceptionUtils.DisallowNullArgument(leftMappingLockToken, "leftMappingLockToken");
ExceptionUtils.DisallowNullArgument(rightMappingLockToken, "rightMappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"SplitMapping", "Start; Left Shard: {0}; Right Shard: {1}",
left.Shard.Location, right.Shard.Location);
Stopwatch stopwatch = Stopwatch.StartNew();
RangeMapping <TKey> rangeMapping = this.rsm.Merge(left, right, leftMappingLockToken.LockOwnerId, rightMappingLockToken.LockOwnerId);
stopwatch.Stop();
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"SplitMapping", "Complete; Duration: {0}", stopwatch.Elapsed);
return(rangeMapping);
}
}
public PointMapping <TKey> UpdateMapping(PointMapping <TKey> currentMapping, PointMappingUpdate update,
MappingLockToken mappingLockToken)
{
ExceptionUtils.DisallowNullArgument(currentMapping, "currentMapping");
ExceptionUtils.DisallowNullArgument(update, "update");
ExceptionUtils.DisallowNullArgument(mappingLockToken, "mappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
string mappingKey = BitConverter.ToString(currentMapping.Key.RawValue);
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.ListShardMap,
"UpdatePointMapping", "Start; ShardMap name: {0}; Current Point Mapping: {1}",
this.Name, mappingKey);
Stopwatch stopwatch = Stopwatch.StartNew();
PointMapping <TKey> pointMapping = _lsm.Update(currentMapping, update, mappingLockToken.LockOwnerId);
stopwatch.Stop();
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.ListShardMap,
"UpdatePointMapping", "Complete; ShardMap name: {0}; Current Point Mapping: {1}; Duration: {2}",
this.Name, mappingKey, stopwatch.Elapsed);
return(pointMapping);
}
}
public RangeMapping <TKey> UpdateMapping(RangeMapping <TKey> currentMapping, RangeMappingUpdate update,
MappingLockToken mappingLockToken)
{
ExceptionUtils.DisallowNullArgument(currentMapping, "currentMapping");
ExceptionUtils.DisallowNullArgument(update, "update");
ExceptionUtils.DisallowNullArgument(mappingLockToken, "mappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"UpdateMapping", "Start; Current mapping shard: {0}",
currentMapping.Shard.Location);
Stopwatch stopwatch = Stopwatch.StartNew();
RangeMapping <TKey> rangeMapping = this.rsm.Update(currentMapping, update, mappingLockToken.LockOwnerId, MappingOptions.Validate);
stopwatch.Stop();
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"UpdateMapping", "Complete; Current mapping shard: {0}; Duration: {1}",
currentMapping.Shard.Location, stopwatch.Elapsed);
return(rangeMapping);
}
}
public RangeMapping <TKey> MarkMappingOnline(RangeMapping <TKey> mapping, MappingLockToken mappingLockToken)
{
ExceptionUtils.DisallowNullArgument(mapping, "mapping");
ExceptionUtils.DisallowNullArgument(mappingLockToken, "mappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.RangeShardMap,
"MarkMappingOnline", "Start; ");
Stopwatch stopwatch = Stopwatch.StartNew();
RangeMapping <TKey> result = this.rsm.MarkMappingOnline(mapping, mappingLockToken.LockOwnerId);
stopwatch.Stop();
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.RangeShardMap,
"MarkMappingOnline", "Complete; Duration: {0}",
stopwatch.Elapsed);
return(result);
}
}
public void DeleteMapping(RangeMapping <TKey> mapping, MappingLockToken mappingLockToken)
{
ExceptionUtils.DisallowNullArgument(mapping, "mapping");
ExceptionUtils.DisallowNullArgument(mappingLockToken, "mappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"DeleteMapping", "Start; Shard: {0}", mapping.Shard.Location);
Stopwatch stopwatch = Stopwatch.StartNew();
this.rsm.Remove(mapping, mappingLockToken.LockOwnerId);
stopwatch.Stop();
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"DeleteMapping", "Complete; Shard: {0}; Duration: {1}",
mapping.Shard.Location, stopwatch.Elapsed);
}
}
public void UnlockMapping(MappingLockToken mappingLockToken)
{
ExceptionUtils.DisallowNullArgument(mappingLockToken, "mappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
Guid lockOwnerId = mappingLockToken.LockOwnerId;
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.ListShardMap,
"UnlockAllMappingsWithLockOwnerId", "Start; LockOwnerId: {0}", lockOwnerId);
Stopwatch stopwatch = Stopwatch.StartNew();
_lsm.LockOrUnlockMappings(null, lockOwnerId, LockOwnerIdOpType.UnlockAllMappingsForId);
stopwatch.Stop();
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.ListShardMap,
"UnlockAllMappingsWithLockOwnerId", "Complete; Duration: {0}",
stopwatch.Elapsed);
}
}
public IReadOnlyList <RangeMapping <TKey> > SplitMapping(RangeMapping <TKey> existingMapping, TKey splitAt,
MappingLockToken mappingLockToken)
{
ExceptionUtils.DisallowNullArgument(existingMapping, "existingMapping");
ExceptionUtils.DisallowNullArgument(mappingLockToken, "mappingLockToken");
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"SplitMapping", "Start; Shard: {0}", existingMapping.Shard.Location);
Stopwatch stopwatch = Stopwatch.StartNew();
IReadOnlyList <RangeMapping <TKey> > rangeMapping = this.rsm.Split(existingMapping, splitAt, mappingLockToken.LockOwnerId);
stopwatch.Stop();
Tracer.TraceInfo(TraceSourceConstants.ComponentNames.RangeShardMap,
"SplitMapping", "Complete; Shard: {0}; Duration: {1}",
existingMapping.Shard.Location, stopwatch.Elapsed);
return(rangeMapping);
}
}
/// <summary>
/// Marks the specified mapping offline.
/// </summary>
/// <param name="mapping">Input range mapping.</param>
/// <param name="mappingLockToken">An instance of <see cref="MappingLockToken"/></param>
/// <returns>An offline mapping.</returns>
public RangeMapping <TKey> MarkMappingOffline(RangeMapping <TKey> mapping, MappingLockToken mappingLockToken)
{
return(this.MarkMappingOffline(mapping, mappingLockToken, MappingOptions.Validate));
}