/// <summary>Create a new subspace from a binary prefix</summary>
/// <param name="prefix">Prefix of the new subspace</param>
/// <param name="encoder">Encoder that will be used by this subspace</param>
/// <param name="context">Context that controls the lifetime of this subspace</param>
internal DynamicKeySubspace(Slice prefix, IDynamicKeyEncoder encoder, ISubspaceContext context)
: base(prefix, context)
{
Contract.Requires(encoder != null);
this.KeyEncoder = encoder;
this.Partition = new DynamicPartition(this);
}
public FdbDynamicSubspacePartition([NotNull] IFdbDynamicSubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
Contract.NotNull(subspace, nameof(subspace));
Contract.NotNull(encoder, nameof(encoder));
this.Subspace = subspace;
this.Encoder = encoder;
}
/// <summary>Pack a tuple into a key, using the specified encoder</summary>
public static Slice Pack <TTuple>(this IDynamicKeyEncoder encoder, TTuple tuple)
where TTuple : IVarTuple
{
var writer = new SliceWriter(checked (tuple.Count * 8));
encoder.PackKey(ref writer, tuple);
return(writer.ToSlice());
}
public static IFdbDynamicSubspace CreateDynamic(Slice slice, [NotNull] IDynamicKeyEncoder encoder)
{
if (encoder == null)
{
throw new ArgumentNullException("encoder");
}
return(new FdbDynamicSubspace(slice, encoder));
}
/// <summary>Create a new subspace from a binary prefix</summary>
/// <param name="prefix">Prefix of the new subspace</param>
/// <param name="encoder">Encoder that will be used by this subspace</param>
internal DynamicKeySubspace(Slice prefix, [NotNull] IDynamicKeyEncoder encoder)
: base(prefix)
{
Contract.Requires(encoder != null);
this.Encoding = encoder.Encoding;
this.KeyEncoder = encoder;
this.Keys = new DynamicKeys(this, encoder);
this.Partition = new DynamicPartition(this);
}
public static IFdbDynamicSubspace CreateDynamic <TKey>([NotNull] TKey key, IDynamicKeyEncoder encoder)
where TKey : IFdbKey
{
if (key == null)
{
throw new ArgumentNullException("key");
}
if (encoder == null)
{
throw new ArgumentNullException("encoder");
}
return(new FdbDynamicSubspace(key.ToFoundationDbKey(), encoder));
}
public FdbDynamicSubspacePartition([NotNull] IFdbDynamicSubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
if (subspace == null)
{
throw new ArgumentNullException("subspace");
}
if (encoder == null)
{
throw new ArgumentNullException("encoder");
}
this.Subspace = subspace;
this.Encoder = encoder;
}
internal FdbDirectorySubspace(IFdbTuple location, IFdbTuple relativeLocation, Slice prefix, FdbDirectoryLayer directoryLayer, Slice layer, IDynamicKeyEncoder encoder)
: base(prefix, encoder)
{
Contract.Requires(location != null && relativeLocation != null && prefix != null && directoryLayer != null);
if (layer.IsNull) layer = Slice.Empty;
this.DirectoryLayer = directoryLayer;
this.Location = location;
this.RelativeLocation = relativeLocation;
this.Layer = layer;
this.Path = location.ToArray<string>();
Contract.Ensures(this.DirectoryLayer != null && this.Location != null && this.RelativeLocation != null && this.Path != null);
Contract.Ensures(this.RelativeLocation.Count <= this.Location.Count && this.Location.EndsWith(this.RelativeLocation));
}
/// <summary>Create a new subspace from a binary prefix</summary>
/// <param name="rawPrefix">Prefix of the new subspace</param>
/// <param name="copy">If true, take a copy of the prefix</param>
/// <param name="encoder">Type System used to encode keys in this subspace (optional, will use Tuple Encoding by default)</param>
internal FdbDynamicSubspace(Slice rawPrefix, bool copy, IDynamicKeyEncoder encoder)
: base(rawPrefix, copy)
{
this.m_encoder = encoder ?? TypeSystem.Default.GetDynamicEncoder();
}
public FdbDynamicSubspace(Slice rawPrefix, IDynamicKeyEncoder encoder)
: this(rawPrefix, true, encoder)
{
}
public FdbDynamicSubspaceKeys([NotNull] IFdbSubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
Contract.Requires(subspace != null && encoder != null);
this.Subspace = subspace;
this.Encoder = encoder;
}
private static T[] BatchDecode <T>(IEnumerable <Slice> packed, IFdbSubspace subspace, IDynamicKeyEncoder encoder, Func <Slice, IDynamicKeyEncoder, T> decode)
{
var coll = packed as ICollection <Slice>;
if (coll != null)
{
var res = new T[coll.Count];
int p = 0;
foreach (var data in packed)
{
res[p++] = decode(subspace.ExtractKey(data), encoder);
}
Contract.Assert(p == res.Length);
return(res);
}
else
{
var res = new List <T>();
foreach (var data in packed)
{
res.Add(decode(subspace.ExtractKey(data), encoder));
}
return(res.ToArray());
}
}
public static DynamicKeySubspace CreateDynamic(Slice prefix, [NotNull] IDynamicKeyEncoder encoder)
{
Contract.NotNull(encoder, nameof(encoder));
return(new DynamicKeySubspace(prefix, encoder));
}
public static IFdbDynamicSubspace CreateDynamic(Slice slice, [NotNull] IDynamicKeyEncoder encoder)
{
Contract.NotNull(encoder, nameof(encoder));
return(new FdbDynamicSubspace(slice, encoder));
}
internal DynamicKeys(DynamicKeySubspace parent, IDynamicKeyEncoder encoder)
{
Contract.Requires(parent != null && encoder != null);
this.Parent = parent;
this.Encoder = encoder;
}
internal FdbDirectorySubspace(IFdbTuple location, IFdbTuple relativeLocation, Slice prefix, FdbDirectoryLayer directoryLayer, Slice layer, IDynamicKeyEncoder encoder)
: base(prefix, encoder)
{
Contract.Requires(location != null && relativeLocation != null && prefix != null && directoryLayer != null);
if (layer.IsNull)
{
layer = Slice.Empty;
}
this.DirectoryLayer = directoryLayer;
this.Location = location;
this.RelativeLocation = relativeLocation;
this.Layer = layer;
this.Path = location.ToArray <string>();
Contract.Ensures(this.DirectoryLayer != null && this.Location != null && this.RelativeLocation != null && this.Path != null);
Contract.Ensures(this.RelativeLocation.Count <= this.Location.Count && this.Location.EndsWith(this.RelativeLocation));
}
public IFdbDynamicSubspace ByKey(T value, [NotNull] IDynamicKeyEncoder encoder)
{
return(FdbSubspace.CreateDynamic(this.Subspace.ConcatKey(this.Encoder.EncodeKey(value)), encoder));
}
public static IDynamicKeySubspace UsingEncoder(this IKeySubspace subspace, IDynamicKeyEncoder encoder, ISubspaceContext?context = null)
{
Contract.NotNull(subspace);
Contract.NotNull(encoder);
return(new DynamicKeySubspace(subspace.GetPrefix(), encoder, context ?? subspace.Context));
}
internal FdbDirectoryPartition(FdbDirectoryLayer.DirectoryDescriptor descriptor, FdbDirectoryLayer.PartitionDescriptor parent, IDynamicKeyEncoder keyEncoder, ISubspaceContext?context)
: base(descriptor, keyEncoder, context)
{
Contract.NotNull(parent, nameof(parent));
this.Parent = parent;
}
public static IFdbDynamicSubspace CopyDynamic([NotNull] IFdbSubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
if (encoder == null)
{
throw new ArgumentNullException("encoder");
}
return(new FdbDynamicSubspace(subspace.Key, true, encoder));
}
/// <summary>Return a version of this subspace, which uses a different type system to produces the keys and values</summary>
/// <param name="subspace">Instance of a generic subspace</param>
/// <param name="encoder">Custom key encoder</param>
/// <returns>Subspace equivalent to <paramref name="subspace"/>, but augmented with a specific TypeSystem</returns>
public static IFdbDynamicSubspace UsingEncoder([NotNull] this IFdbSubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
if (subspace == null)
{
throw new ArgumentNullException("subspace");
}
if (encoder == null)
{
throw new ArgumentNullException("encoder");
}
return(FdbSubspace.CopyDynamic(subspace, encoder));
}
public FdbDynamicSubspace(Slice rawPrefix, IDynamicKeyEncoder encoder)
: this(rawPrefix, true, encoder)
{ }
/// <summary>Create a new subspace from a binary prefix</summary>
/// <param name="rawPrefix">Prefix of the new subspace</param>
/// <param name="copy">If true, take a copy of the prefix</param>
/// <param name="encoder">Type System used to encode keys in this subspace (optional, will use Tuple Encoding by default)</param>
internal FdbDynamicSubspace(Slice rawPrefix, bool copy, IDynamicKeyEncoder encoder)
: base (rawPrefix, copy)
{
this.m_encoder = encoder ?? TypeSystem.Default.GetDynamicEncoder();
}
/// <summary>Returns the same view but using a different Type System</summary>
/// <param name="encoder">Type System that will code keys in this new view</param>
/// <returns>Review that will partition this subspace using a different Type System</returns>
/// <remarks>
/// This should only be used for one-off usages where creating a new subspace just to encode one key would be overkill.
/// If you are calling this in a loop, consider creating a new subspace using that encoder.
/// </remarks>
public FdbDynamicSubspacePartition UsingEncoder([NotNull] IDynamicKeyEncoder encoder)
{
return(new FdbDynamicSubspacePartition(this.Subspace, encoder));
}
public static IFdbDynamicSubspace CopyDynamic([NotNull] IFdbSubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
Contract.NotNull(encoder, nameof(encoder));
return(new FdbDynamicSubspace(subspace.Key, true, encoder));
}
public static IDynamicKeySubspace CreateDynamic(Slice prefix, IDynamicKeyEncoder encoder, ISubspaceContext?context = null)
{
Contract.NotNull(encoder);
return(new DynamicKeySubspace(prefix, encoder, context ?? SubspaceContext.Default));
}
public IFdbDynamicSubspace ByKey(T1 value1, T2 value2, IDynamicKeyEncoder encoder)
{
return(FdbSubspace.CreateDynamic(this.Subspace.ConcatKey(this.Encoder.EncodeKey(value1, value2)), encoder));
}
public IFdbDynamicSubspace ByKey(T1 value1, T2 value2, T3 value3, T4 value4, [NotNull] IDynamicKeyEncoder encoder)
{
return(FdbSubspace.CreateDynamic(this.Subspace.ConcatKey(this.Encoder.EncodeKey(value1, value2, value3, value4)), encoder));
}
public static IDynamicKeySubspace UsingEncoder([NotNull] this IKeySubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
Contract.NotNull(subspace, nameof(subspace));
Contract.NotNull(encoder, nameof(encoder));
return(new DynamicKeySubspace(subspace.GetPrefix(), encoder.Encoding));
}
public static DynamicKeySubspace Copy(this IKeySubspace subspace, IDynamicKeyEncoder encoder, ISubspaceContext?context = null)
{
Contract.NotNull(subspace);
Contract.NotNull(encoder);
return(new DynamicKeySubspace(StealPrefix(subspace), encoder, context ?? subspace.Context));
}
public static DynamicKeySubspace Copy([NotNull] this IKeySubspace subspace, IDynamicKeyEncoder encoder)
{
Contract.NotNull(subspace, nameof(subspace));
Contract.NotNull(encoder, nameof(encoder));
return(new DynamicKeySubspace(StealPrefix(subspace), encoder));
}
internal FdbDirectorySubspace(FdbDirectoryLayer.DirectoryDescriptor descriptor, IDynamicKeyEncoder encoder, ISubspaceContext?context)
: base(descriptor.Prefix, encoder, context ?? SubspaceContext.Default)
{
Contract.Requires(descriptor?.Partition != null);
this.Descriptor = descriptor;
}
public static IFdbDynamicSubspace UsingEncoder([NotNull] this IFdbSubspace subspace, [NotNull] IDynamicKeyEncoder encoder)
{
Contract.NotNull(subspace, nameof(subspace));
Contract.NotNull(encoder, nameof(encoder));
return(FdbSubspace.CopyDynamic(subspace, encoder));
}