public override Task <AggregateMetadata> GetAggregate(string keyspaceName, string aggregateName, string signatureString)
{
var query = string.Format(SelectAggregates, keyspaceName, aggregateName, signatureString);
return(Cc
.QueryAsync(query, true)
.ContinueSync(rs =>
{
var row = rs.FirstOrDefault();
if (row == null)
{
return null;
}
var emptyArray = new string[0];
var aggregate = new AggregateMetadata
{
Name = row.GetValue <string>("aggregate_name"),
KeyspaceName = row.GetValue <string>("keyspace_name"),
Signature = row.GetValue <string[]>("signature") ?? emptyArray,
StateFunction = row.GetValue <string>("state_func"),
StateType = TypeCodec.ParseFqTypeName(row.GetValue <string>("state_type")),
FinalFunction = row.GetValue <string>("final_func"),
ReturnType = TypeCodec.ParseFqTypeName(row.GetValue <string>("return_type")),
ArgumentTypes = (row.GetValue <string[]>("argument_types") ?? emptyArray).Select(s => TypeCodec.ParseFqTypeName(s)).ToArray(),
};
var initConditionRaw = TypeCodec.Decode(Cc.ProtocolVersion, row.GetValue <byte[]>("initcond"), aggregate.StateType.TypeCode, aggregate.StateType.TypeInfo);
if (initConditionRaw != null)
{
aggregate.InitialCondition = initConditionRaw.ToString();
}
return aggregate;
}));
}
private static ColumnDesc[] AdaptKeyTypes(string typesString)
{
if (typesString == null)
{
return(new ColumnDesc[0]);
}
var indexes = new List <int>();
for (var i = 1; i < typesString.Length; i++)
{
if (typesString[i] == ',')
{
indexes.Add(i + 1);
}
}
if (typesString.StartsWith(CompositeTypeName))
{
indexes.Insert(0, CompositeTypeName.Length + 1);
indexes.Add(typesString.Length);
}
else
{
indexes.Insert(0, 0);
//we are talking about indexes
//the next valid start indexes would be at length + 1
indexes.Add(typesString.Length + 1);
}
var types = new ColumnDesc[indexes.Count - 1];
for (var i = 0; i < types.Length; i++)
{
types[i] = TypeCodec.ParseFqTypeName(typesString, indexes[i], indexes[i + 1] - indexes[i] - 1);
}
return(types);
}
public override Task <FunctionMetadata> GetFunction(string keyspaceName, string functionName, string signatureString)
{
var query = string.Format(SelectFunctions, keyspaceName, functionName, signatureString);
return(Cc
.QueryAsync(query, true)
.ContinueSync(rs =>
{
var row = rs.FirstOrDefault();
if (row == null)
{
return null;
}
var emptyArray = new string[0];
return new FunctionMetadata
{
Name = row.GetValue <string>("function_name"),
KeyspaceName = row.GetValue <string>("keyspace_name"),
Signature = row.GetValue <string[]>("signature") ?? emptyArray,
ArgumentNames = row.GetValue <string[]>("argument_names") ?? emptyArray,
Body = row.GetValue <string>("body"),
CalledOnNullInput = row.GetValue <bool>("called_on_null_input"),
Language = row.GetValue <string>("language"),
ReturnType = TypeCodec.ParseFqTypeName(row.GetValue <string>("return_type")),
ArgumentTypes = (row.GetValue <string[]>("argument_types") ?? emptyArray).Select(s => TypeCodec.ParseFqTypeName(s)).ToArray()
};
}));
}
public void Parse_DataType_Name_Frozen_Test()
{
var dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.FrozenType(org.apache.cassandra.db.marshal.ListType(org.apache.cassandra.db.marshal.TimeUUIDType))");
Assert.AreEqual(ColumnTypeCode.List, dataType.TypeCode);
Assert.IsInstanceOf <ListColumnInfo>(dataType.TypeInfo);
Assert.AreEqual(ColumnTypeCode.Timeuuid, (dataType.TypeInfo as ListColumnInfo).ValueTypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.FrozenType(org.apache.cassandra.db.marshal.ListType(org.apache.cassandra.db.marshal.Int32Type)))");
Assert.AreEqual(ColumnTypeCode.Map, dataType.TypeCode);
Assert.IsInstanceOf <MapColumnInfo>(dataType.TypeInfo);
Assert.AreEqual(ColumnTypeCode.Varchar, (dataType.TypeInfo as MapColumnInfo).KeyTypeCode);
Assert.AreEqual(ColumnTypeCode.List, (dataType.TypeInfo as MapColumnInfo).ValueTypeCode);
var subType = (ListColumnInfo)((dataType.TypeInfo as MapColumnInfo).ValueTypeInfo);
Assert.AreEqual(ColumnTypeCode.Int, subType.ValueTypeCode);
}
public void ParseDataTypeNameSingleTest()
{
var dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.Int32Type");
Assert.AreEqual(ColumnTypeCode.Int, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.UUIDType");
Assert.AreEqual(ColumnTypeCode.Uuid, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.UTF8Type");
Assert.AreEqual(ColumnTypeCode.Varchar, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.BytesType");
Assert.AreEqual(ColumnTypeCode.Blob, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.FloatType");
Assert.AreEqual(ColumnTypeCode.Float, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.DoubleType");
Assert.AreEqual(ColumnTypeCode.Double, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.BooleanType");
Assert.AreEqual(ColumnTypeCode.Boolean, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.InetAddressType");
Assert.AreEqual(ColumnTypeCode.Inet, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.DateType");
Assert.AreEqual(ColumnTypeCode.Timestamp, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.TimestampType");
Assert.AreEqual(ColumnTypeCode.Timestamp, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.LongType");
Assert.AreEqual(ColumnTypeCode.Bigint, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.DecimalType");
Assert.AreEqual(ColumnTypeCode.Decimal, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.IntegerType");
Assert.AreEqual(ColumnTypeCode.Varint, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.CounterColumnType");
Assert.AreEqual(ColumnTypeCode.Counter, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.TimeUUIDType");
Assert.AreEqual(ColumnTypeCode.Timeuuid, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.AsciiType");
Assert.AreEqual(ColumnTypeCode.Ascii, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.SimpleDateType");
Assert.AreEqual(ColumnTypeCode.Date, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.TimeType");
Assert.AreEqual(ColumnTypeCode.Time, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.ShortType");
Assert.AreEqual(ColumnTypeCode.SmallInt, dataType.TypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.ByteType");
Assert.AreEqual(ColumnTypeCode.TinyInt, dataType.TypeCode);
}
public void Parse_DataType_Name_Udt_Test()
{
var typeText =
"org.apache.cassandra.db.marshal.UserType(" +
"tester,70686f6e65,616c696173:org.apache.cassandra.db.marshal.UTF8Type,6e756d626572:org.apache.cassandra.db.marshal.UTF8Type" +
")";
var dataType = TypeCodec.ParseFqTypeName(typeText);
Assert.AreEqual(ColumnTypeCode.Udt, dataType.TypeCode);
//Udt name
Assert.AreEqual("phone", dataType.Name);
Assert.IsInstanceOf <UdtColumnInfo>(dataType.TypeInfo);
var subTypes = (dataType.TypeInfo as UdtColumnInfo).Fields;
Assert.AreEqual(2, subTypes.Count);
Assert.AreEqual("alias", subTypes[0].Name);
Assert.AreEqual(ColumnTypeCode.Varchar, subTypes[0].TypeCode);
Assert.AreEqual("number", subTypes[1].Name);
Assert.AreEqual(ColumnTypeCode.Varchar, subTypes[1].TypeCode);
}
public override Task <UdtColumnInfo> GetUdtDefinition(string keyspaceName, string typeName)
{
return(Cc
.QueryAsync(string.Format(SelectUdts, keyspaceName, typeName), true)
.ContinueSync(rs =>
{
var row = rs.FirstOrDefault();
if (row == null)
{
return null;
}
var udt = new UdtColumnInfo(row.GetValue <string>("keyspace_name") + "." + row.GetValue <string>("type_name"));
var fieldNames = row.GetValue <string[]>("field_names");
var fieldTypes = row.GetValue <string[]>("field_types");
for (var i = 0; i < fieldNames.Length && i < fieldTypes.Length; i++)
{
var field = TypeCodec.ParseFqTypeName(fieldTypes[i]);
field.Name = fieldNames[i];
udt.Fields.Add(field);
}
return udt;
}));
}
public void Parse_DataType_Name_Udt_Nested_Test()
{
var typeText =
"org.apache.cassandra.db.marshal.UserType(" +
"tester," +
"61646472657373," +
"737472656574:org.apache.cassandra.db.marshal.UTF8Type," +
"5a4950:org.apache.cassandra.db.marshal.Int32Type," +
"70686f6e6573:org.apache.cassandra.db.marshal.SetType(" +
"org.apache.cassandra.db.marshal.UserType(" +
"tester," +
"70686f6e65," +
"616c696173:org.apache.cassandra.db.marshal.UTF8Type," +
"6e756d626572:org.apache.cassandra.db.marshal.UTF8Type))" +
")";
var dataType = TypeCodec.ParseFqTypeName(typeText);
Assert.AreEqual(ColumnTypeCode.Udt, dataType.TypeCode);
Assert.IsInstanceOf <UdtColumnInfo>(dataType.TypeInfo);
Assert.AreEqual("address", dataType.Name);
Assert.AreEqual("tester.address", (dataType.TypeInfo as UdtColumnInfo).Name);
var subTypes = (dataType.TypeInfo as UdtColumnInfo).Fields;
Assert.AreEqual(3, subTypes.Count);
Assert.AreEqual("street,ZIP,phones", String.Join(",", subTypes.Select(s => s.Name)));
Assert.AreEqual(ColumnTypeCode.Varchar, subTypes[0].TypeCode);
Assert.AreEqual(ColumnTypeCode.Set, subTypes[2].TypeCode);
//field name
Assert.AreEqual("phones", subTypes[2].Name);
var phonesSubType = (UdtColumnInfo)((SetColumnInfo)subTypes[2].TypeInfo).KeyTypeInfo;
Assert.AreEqual("tester.phone", phonesSubType.Name);
Assert.AreEqual(2, phonesSubType.Fields.Count);
Assert.AreEqual("alias", phonesSubType.Fields[0].Name);
Assert.AreEqual("number", phonesSubType.Fields[1].Name);
}
public void Parse_DataType_Name_Multiple_Test()
{
var dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.ListType(org.apache.cassandra.db.marshal.Int32Type)");
Assert.AreEqual(ColumnTypeCode.List, dataType.TypeCode);
Assert.IsInstanceOf <ListColumnInfo>(dataType.TypeInfo);
Assert.AreEqual(ColumnTypeCode.Int, (dataType.TypeInfo as ListColumnInfo).ValueTypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UUIDType)");
Assert.AreEqual(ColumnTypeCode.Set, dataType.TypeCode);
Assert.IsInstanceOf <SetColumnInfo>(dataType.TypeInfo);
Assert.AreEqual(ColumnTypeCode.Uuid, (dataType.TypeInfo as SetColumnInfo).KeyTypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.TimeUUIDType)");
Assert.AreEqual(ColumnTypeCode.Set, dataType.TypeCode);
Assert.IsInstanceOf <SetColumnInfo>(dataType.TypeInfo);
Assert.AreEqual(ColumnTypeCode.Timeuuid, (dataType.TypeInfo as SetColumnInfo).KeyTypeCode);
dataType = TypeCodec.ParseFqTypeName("org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.LongType)");
Assert.AreEqual(ColumnTypeCode.Map, dataType.TypeCode);
Assert.IsInstanceOf <MapColumnInfo>(dataType.TypeInfo);
Assert.AreEqual(ColumnTypeCode.Varchar, (dataType.TypeInfo as MapColumnInfo).KeyTypeCode);
Assert.AreEqual(ColumnTypeCode.Bigint, (dataType.TypeInfo as MapColumnInfo).ValueTypeCode);
}
public override Task <TableMetadata> GetTable(string keyspaceName, string tableName)
{
var columns = new Dictionary <string, TableColumn>();
var partitionKeys = new List <Tuple <int, TableColumn> >();
var clusteringKeys = new List <Tuple <int, Tuple <TableColumn, SortOrder> > >();
return(Cc
.QueryAsync(string.Format(SelectSingleTable, tableName, keyspaceName), true)
.Then(rs =>
{
var tableMetadataRow = rs.FirstOrDefault();
if (tableMetadataRow == null)
{
return NullTableTask;
}
//Read table options
var options = new TableOptions
{
isCompactStorage = false,
bfFpChance = tableMetadataRow.GetValue <double>("bloom_filter_fp_chance"),
caching = tableMetadataRow.GetValue <string>("caching"),
comment = tableMetadataRow.GetValue <string>("comment"),
gcGrace = tableMetadataRow.GetValue <int>("gc_grace_seconds"),
localReadRepair = tableMetadataRow.GetValue <double>("local_read_repair_chance"),
readRepair = tableMetadataRow.GetValue <double>("read_repair_chance"),
compactionOptions = GetCompactionStrategyOptions(tableMetadataRow),
compressionParams =
(SortedDictionary <string, string>)Utils.ConvertStringToMap(tableMetadataRow.GetValue <string>("compression_parameters"))
};
//replicate_on_write column not present in C* >= 2.1
if (tableMetadataRow.GetColumn("replicate_on_write") != null)
{
options.replicateOnWrite = tableMetadataRow.GetValue <bool>("replicate_on_write");
}
return Cc
.QueryAsync(string.Format(SelectColumns, tableName, keyspaceName), true)
.ContinueSync(columnsMetadata =>
{
foreach (var row in columnsMetadata)
{
var dataType = TypeCodec.ParseFqTypeName(row.GetValue <string>("validator"));
var col = new TableColumn
{
Name = row.GetValue <string>("column_name"),
Keyspace = row.GetValue <string>("keyspace_name"),
Table = row.GetValue <string>("columnfamily_name"),
TypeCode = dataType.TypeCode,
TypeInfo = dataType.TypeInfo,
#pragma warning disable 618
SecondaryIndexName = row.GetValue <string>("index_name"),
SecondaryIndexType = row.GetValue <string>("index_type"),
SecondaryIndexOptions = Utils.ParseJsonStringMap(row.GetValue <string>("index_options")),
#pragma warning restore 618
KeyType =
row.GetValue <string>("index_name") != null
? KeyType.SecondaryIndex
: KeyType.None,
};
if (row.GetColumn("type") != null)
{
switch (row.GetValue <string>("type"))
{
case "partition_key":
partitionKeys.Add(Tuple.Create(row.GetValue <int?>("component_index") ?? 0, col));
break;
case "clustering_key":
{
var sortOrder = dataType.IsReversed ? SortOrder.Descending : SortOrder.Ascending;
clusteringKeys.Add(Tuple.Create(row.GetValue <int?>("component_index") ?? 0, Tuple.Create(col, sortOrder)));
break;
}
}
}
columns.Add(col.Name, col);
}
var comparator = tableMetadataRow.GetValue <string>("comparator");
if (tableMetadataRow.GetColumn("key_aliases") != null && partitionKeys.Count == 0)
{
//In C* 1.2, keys are not stored on the schema_columns table
var partitionKeyNames = Utils.ParseJsonStringArray(tableMetadataRow.GetValue <string>("key_aliases"));
var types = AdaptKeyTypes(tableMetadataRow.GetValue <string>("key_validator"));
for (var i = 0; i < partitionKeyNames.Length; i++)
{
var name = partitionKeyNames[i];
TableColumn c;
if (!columns.TryGetValue(name, out c))
{
c = new TableColumn
{
Name = name,
Keyspace = keyspaceName,
Table = tableName,
TypeCode = types[i].TypeCode,
TypeInfo = types[i].TypeInfo,
KeyType = KeyType.Partition
};
//The column is not part of columns metadata table
columns.Add(name, c);
}
partitionKeys.Add(Tuple.Create(i, c));
}
//In C* 1.2, keys are not stored on the schema_columns table
var clusteringKeyNames = Utils.ParseJsonStringArray(tableMetadataRow.GetValue <string>("column_aliases"));
if (clusteringKeyNames.Length > 0)
{
types = AdaptKeyTypes(comparator);
for (var i = 0; i < clusteringKeyNames.Length; i++)
{
var name = clusteringKeyNames[i];
TableColumn c;
var dataType = types[i];
if (!columns.TryGetValue(name, out c))
{
c = new TableColumn
{
Name = name,
Keyspace = keyspaceName,
Table = tableName,
TypeCode = dataType.TypeCode,
TypeInfo = dataType.TypeInfo,
KeyType = KeyType.Clustering
};
//The column is not part of columns metadata table
columns.Add(name, c);
}
clusteringKeys.Add(Tuple.Create(i, Tuple.Create(c, dataType.IsReversed ? SortOrder.Descending : SortOrder.Ascending)));
}
}
}
options.isCompactStorage = tableMetadataRow.GetColumn("is_dense") != null && tableMetadataRow.GetValue <bool>("is_dense");
if (!options.isCompactStorage)
{
//is_dense column does not exist in previous versions of Cassandra
//also, compact pk, ck and val appear as is_dense false
// clusteringKeys != comparator types - 1
// or not composite (comparator)
options.isCompactStorage = !comparator.StartsWith(TypeCodec.CompositeTypeName);
}
var result = new TableMetadata(tableName, GetIndexesFromColumns(columns.Values));
result.SetValues(
columns,
partitionKeys.OrderBy(p => p.Item1).Select(p => p.Item2).ToArray(),
clusteringKeys.OrderBy(p => p.Item1).Select(p => p.Item2).ToArray(),
options);
return result;
});
}));
}
