public static CassandraSlicePredicate SetSchemaForSlicePredicate(CassandraSlicePredicate predicate, CassandraColumnFamilySchema schema, bool forSuperColumn = false)
{
CassandraType columnType = forSuperColumn ? schema.SuperColumnNameType : schema.ColumnNameType;
if (predicate is CassandraRangeSlicePredicate)
{
var x = (CassandraRangeSlicePredicate)predicate;
var start = CassandraObject.GetCassandraObjectFromObject(x.Start, columnType);
var finish = CassandraObject.GetCassandraObjectFromObject(x.Finish, columnType);
return(new CassandraRangeSlicePredicate(start, finish, x.Reversed, x.Count));
}
else if (predicate is CassandraColumnSlicePredicate)
{
var x = (CassandraColumnSlicePredicate)predicate;
var cols = x.Columns.ToList();
for (int i = 0; i < cols.Count; i++)
{
cols[i] = CassandraObject.GetCassandraObjectFromObject(cols[i], columnType);
}
return(new CassandraColumnSlicePredicate(cols));
}
return(null);
}
private static Cassandra.IndexExpression VisitRelationalExpression(BinaryExpression exp)
{
Cassandra.IndexExpression indexExpression;
var columnName = GetColumnName(exp.Left);
var value = CassandraType.GetType <BytesType>(Expression.Lambda(exp.Right).Compile().DynamicInvoke());
indexExpression = new Cassandra.IndexExpression {
Column_name = columnName,
Value = value
};
switch (exp.NodeType)
{
case ExpressionType.Equal: indexExpression.Op = Cassandra.IndexOperator.EQ; break;
case ExpressionType.GreaterThan: indexExpression.Op = Cassandra.IndexOperator.GT; break;
case ExpressionType.GreaterThanOrEqual: indexExpression.Op = Cassandra.IndexOperator.GTE; break;
case ExpressionType.LessThan: indexExpression.Op = Cassandra.IndexOperator.LT; break;
case ExpressionType.LessThanOrEqual: indexExpression.Op = Cassandra.IndexOperator.LTE; break;
default:
throw new NotSupportedException(exp.NodeType.ToString() + " is not a supported relational criteria.");
}
return(indexExpression);
}
/// <summary>
///
/// </summary>
/// <param name="name"></param>
/// <param name="value"></param>
/// <returns></returns>
public override bool TrySetColumn(object name, object value)
{
var col = Columns.FirstOrDefault(c => c.ColumnName == name);
var mutationType = MutationType.Changed;
// if column doesn't exisit create it and add it to the columns
if (col == null)
{
mutationType = MutationType.Added;
col = new FluentColumn <CompareWith>();
((FluentColumn <CompareWith>)col).ColumnName = CassandraType.GetType <CompareWith>(name);
_columns.SupressChangeNotification = true;
_columns.Add(col);
_columns.SupressChangeNotification = false;
}
// set the column value
col.ColumnValue = CassandraType.GetType <BytesType>(value);
// notify the tracker that the column has changed
OnColumnMutated(mutationType, col);
return(true);
}
public RangeSlicePredicate(CassandraType start, CassandraType finish, bool reversed = false, int count = 100)
{
Start = start;
Finish = finish;
Reversed = reversed;
Count = count;
}
public void Test_Composite3()
{
// arrange
var keyspace = _db.Keyspace;
// create column family using API
_db.TryDropColumnFamily("Data");
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema {
FamilyName = "Data",
KeyValueType = CassandraType.CompositeType(CassandraType.AsciiType, CassandraType.AsciiType, CassandraType.TimeUUIDType),
ColumnNameType = CassandraType.AsciiType,
DefaultColumnValueType = CassandraType.BytesType
});
var stamp = new DateTimeOffset(2012, 6, 22, 4, 41, 00, TimeSpan.Zero);
InsertData3("TT", "A", stamp, new Dictionary <string, string> {
{ "Status", "Working" }
});
// act
var actual = GetData3("TT", "A", stamp, "Status");
// assert
Assert.NotNull(actual);
Assert.Equal(1, actual.Columns.Count);
}
public void ResetDatabase()
{
using (var session = new CassandraSession(ConnectionBuilder))
using (var db = new CassandraContext(session))
{
db.ThrowErrors = true;
db.TryDropKeyspace(Keyspace);
var keyspace = new CassandraKeyspace(new CassandraKeyspaceSchema
{
Name = Keyspace
}, db);
db.Keyspace = keyspace;
keyspace.TryCreateSelf();
keyspace.TryCreateColumnFamily <AsciiType>("Standard");
keyspace.TryCreateColumnFamily <AsciiType, AsciiType>("Super");
keyspace.TryCreateColumnFamily <AsciiType>("StandardAsciiType");
keyspace.TryCreateColumnFamily <BytesType>("StandardBytesType");
keyspace.TryCreateColumnFamily <IntegerType>("StandardIntegerType");
keyspace.TryCreateColumnFamily <LexicalUUIDType>("StandardLexicalUUIDType");
keyspace.TryCreateColumnFamily <LongType>("StandardLongType");
keyspace.TryCreateColumnFamily <TimeUUIDType>("StandardTimeUUIDType");
keyspace.TryCreateColumnFamily <UTF8Type>("StandardUTF8Type");
keyspace.TryCreateColumnFamily <UUIDType>("StandardUUIDType");
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema
{
FamilyName = "StandardCompositeType",
ColumnNameType = CassandraType.CompositeType(new[] { CassandraType.AsciiType, CassandraType.DoubleType })
});
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema
{
FamilyName = "StandardDynamicCompositeType",
ColumnNameType = CassandraType.DynamicCompositeType(new Dictionary <char, CassandraType> {
{ 'a', CassandraType.AsciiType }, { 'd', CassandraType.DoubleType }
})
});
db.ExecuteNonQuery(string.Format(@"
CREATE TABLE {0} (
id int ,
name ascii,
email ascii,
age int,
PRIMARY KEY(id)
);", toLowerIf(toLower, "Users")));
//db.ExecuteNonQuery(@"CREATE INDEX User_Age ON users (Age);");
db.Keyspace.ClearCachedKeyspaceSchema();
var family = db.GetColumnFamily <AsciiType>("Standard");
var superFamily = db.GetColumnFamily <AsciiType, AsciiType>("Super");
var userFamily = db.GetColumnFamily(toLowerIf(toLower, "Users"));
ResetFamily(family);
ResetSuperFamily(superFamily);
ResetUsersFamily(userFamily);
}
}
/// <summary>
///
/// </summary>
/// <param name="name"></param>
/// <param name="result"></param>
/// <returns></returns>
public override bool TryGetColumn(object name, out object result)
{
var col = Columns.FirstOrDefault(c => c.ColumnName == name);
result = (col == null) ? CreateSuperColumn(CassandraType.GetType <CompareWith>(name)) : col;
return(true);
}
public InsertColumn(BytesType key, CassandraType name, BytesType value, DateTimeOffset timestamp, int timeToLive)
{
Key = key;
ColumnName = name;
ColumnValue = value;
Timestamp = timestamp;
TimeToLive = timeToLive;
}
public static FluentColumn <CompareWith> ConvertColumnToFluentColumn <CompareWith>(Column col)
where CompareWith : CassandraType
{
return(new FluentColumn <CompareWith> {
ColumnName = CassandraType.GetType <CompareWith>(col.Name),
ColumnValue = col.Value,
ColumnTimestamp = new DateTimeOffset(col.Timestamp, TimeSpan.Zero),
ColumnTimeToLive = col.Ttl
});
}
private static CassandraSlicePredicate BuildPredicateFromExpression(IDictionary <string, object> calls)
{
object fetch, take, takeUntil;
if (!calls.TryGetValue("Fetch", out fetch))
{
fetch = new CassandraType[0];
}
var columns = (CassandraType[])fetch;
RangeSlicePredicate predicate;
if (columns.Length > 1)
{
if (calls.Count > 1)
{
throw new CassandraException("A multi column fetch cannot be used with the following query options: " + String.Join(", ", calls.Keys.Where(x => x != "Fetch")));
}
return(new ColumnSlicePredicate(columns));
}
else if (columns.Length == 1)
{
if (calls.Count == 1)
{
return(new ColumnSlicePredicate(columns));
}
predicate = new RangeSlicePredicate(columns[0], null);
}
else
{
predicate = new RangeSlicePredicate(null, null);
}
if (calls.TryGetValue("Take", out take))
{
int count = (int)take;
predicate.Count = count;
}
if (calls.TryGetValue("TakeUntil", out takeUntil))
{
CassandraType column = (CassandraType)takeUntil;
predicate.Finish = column;
}
if (calls.ContainsKey("Reverse"))
{
predicate.Reversed = true;
}
return(predicate);
}
public void CassandraType_Cast()
{
// arranage
string expected = "The quick brown fox jumps over the lazy dog.";
UTF8Type actualType = expected;
// act
CassandraType actual = actualType;
// assert
Assert.AreEqual(expected, (string)actual);
}
public void CassandraType_Cast()
{
// arranage
Guid expected = guid;
LexicalUUIDType actualType = expected;
// act
CassandraType actual = actualType;
// assert
Assert.AreEqual(expected, (Guid)actual);
}
public void CassandraType_Cast()
{
// arranage
BigInteger expected = 100;
IntegerType actualType = expected;
// act
CassandraType actual = actualType;
// assert
Assert.AreEqual(expected, (BigInteger)actual);
}
public void CassandraType_Cast()
{
// arranage
long expected = 100L;
IntegerType actualType = expected;
// act
CassandraType actual = actualType;
// assert
Assert.AreEqual(expected, (long)actual);
}
public void CassandraType_Cast()
{
// arranage
byte[] expected = new byte[] { 0, 32, 0, 16, 0, 0, 64, 128 };
BytesType actualType = expected;
// act
CassandraType actualCassandraType = actualType;
byte[] actual = actualCassandraType;
// assert
Assert.IsTrue(expected.SequenceEqual(actual));
}
public static FluentSuperColumn <CompareWith, CompareSubcolumnWith> ConvertSuperColumnToFluentSuperColumn <CompareWith, CompareSubcolumnWith>(SuperColumn col)
where CompareWith : CassandraType
where CompareSubcolumnWith : CassandraType
{
var superCol = new FluentSuperColumn <CompareWith, CompareSubcolumnWith> {
ColumnName = CassandraType.GetType <CompareWith>(col.Name)
};
foreach (var xcol in col.Columns)
{
superCol.Columns.Add(ConvertColumnToFluentColumn <CompareSubcolumnWith>(xcol));
}
return(superCol);
}
public CassandraCqlRowSchema(CqlResult result, string familyName)
{
#if DEBUG
_def = result.Schema;
#endif
var def = result.Schema;
var colNameType = CassandraType.GetCassandraType(def.Default_name_type);
var colValueType = CassandraType.GetCassandraType(def.Default_value_type);
FamilyName = familyName;
DefaultColumnNameType = colNameType;
DefaultColumnValueType = colValueType;
Columns = new List <CassandraColumnSchema>();
var colNameTypes = new Dictionary <CassandraObject, CassandraType>();
foreach (var c in def.Name_types)
{
var type = CassandraType.GetCassandraType(c.Value);
var name = CassandraObject.GetCassandraObjectFromDatabaseByteArray(c.Key, CassandraType.BytesType);
colNameTypes.Add(name, type);
}
// columns returned
foreach (var c in def.Value_types)
{
var type = CassandraType.GetCassandraType(c.Value);
var nameType = colNameType;
var name = CassandraObject.GetCassandraObjectFromDatabaseByteArray(c.Key, CassandraType.BytesType);
if (colNameTypes.ContainsKey(name))
{
nameType = colNameTypes[name];
}
var colSchema = new CassandraColumnSchema {
NameType = nameType,
Name = name,
ValueType = type
};
Columns.Add(colSchema);
}
}
public CassandraColumnFamilySchema(CfDef def)
{
_def = def;
KeyspaceName = def.Keyspace;
var familyType = ColumnType.Standard;
Enum.TryParse <ColumnType>(def.Column_type, out familyType);
var defaultKeyValueType = CassandraType.GetCassandraType(def.Key_validation_class);
var defaultColumnValueType = CassandraType.GetCassandraType(def.Default_validation_class);
CassandraType columnNameType, superColumnNameType;
if (familyType == ColumnType.Super)
{
superColumnNameType = CassandraType.GetCassandraType(def.Comparator_type);
columnNameType = CassandraType.GetCassandraType(def.Subcomparator_type);
}
else
{
superColumnNameType = null;
columnNameType = CassandraType.GetCassandraType(def.Comparator_type);
}
FamilyType = familyType;
FamilyName = def.Name;
FamilyDescription = def.Comment;
KeyName = CassandraObject.GetCassandraObjectFromDatabaseByteArray(def.Key_alias, DefaultKeyNameType);
KeyValueType = defaultKeyValueType;
SuperColumnNameType = superColumnNameType;
ColumnNameType = columnNameType;
DefaultColumnValueType = defaultColumnValueType;
Columns = def.Column_metadata.Select(col => new CassandraColumnSchema(col, columnNameType)).ToList();
}
public GetSuperColumnRangeSlices(CassandraKeyRange keyRange, CassandraType superColumnName, CassandraSlicePredicate columnSlicePredicate)
{
KeyRange = keyRange;
SuperColumnName = superColumnName;
SlicePredicate = columnSlicePredicate;
}
public void ResetDatabase()
{
using (var session = new CassandraSession(ConnectionBuilder))
using (var db = new CassandraContext(session))
{
db.ThrowErrors = true;
db.TryDropKeyspace(Keyspace);
var keyspace = new CassandraKeyspace(new CassandraKeyspaceSchema {
Name = Keyspace
}, db);
db.Keyspace = keyspace;
keyspace.TryCreateSelf();
keyspace.TryCreateColumnFamily <AsciiType>("Standard");
keyspace.TryCreateColumnFamily <AsciiType, AsciiType>("Super");
keyspace.TryCreateColumnFamily <AsciiType>("StandardAsciiType");
keyspace.TryCreateColumnFamily <BytesType>("StandardBytesType");
keyspace.TryCreateColumnFamily <IntegerType>("StandardIntegerType");
keyspace.TryCreateColumnFamily <LexicalUUIDType>("StandardLexicalUUIDType");
keyspace.TryCreateColumnFamily <LongType>("StandardLongType");
keyspace.TryCreateColumnFamily <TimeUUIDType>("StandardTimeUUIDType");
keyspace.TryCreateColumnFamily <UTF8Type>("StandardUTF8Type");
keyspace.TryCreateColumnFamily <UUIDType>("StandardUUIDType");
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema()
{
FamilyName = "Counters",
ColumnNameType = CassandraType.AsciiType,
DefaultColumnValueType = CassandraType.CounterColumnType
});
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema(type: ColumnType.Super)
{
FamilyName = "SuperCounters",
SuperColumnNameType = CassandraType.AsciiType,
ColumnNameType = CassandraType.AsciiType,
DefaultColumnValueType = CassandraType.CounterColumnType
});
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema {
FamilyName = "StandardDecimalType",
ColumnNameType = CassandraType.DecimalType
});
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema {
FamilyName = "StandardCompositeType",
ColumnNameType = CassandraType.CompositeType(new[] { CassandraType.AsciiType, CassandraType.DoubleType })
});
keyspace.TryCreateColumnFamily(new CassandraColumnFamilySchema {
FamilyName = "StandardDynamicCompositeType",
ColumnNameType = CassandraType.DynamicCompositeType(new Dictionary <char, CassandraType> {
{ 'a', CassandraType.AsciiType }, { 'd', CassandraType.DoubleType }
})
});
db.ExecuteNonQuery(@"
CREATE COLUMNFAMILY ""Users"" (
Id int PRIMARY KEY,
Name ascii,
Email ascii,
Age int
);");
db.ExecuteNonQuery(@"CREATE INDEX User_Age ON ""Users"" (Age);");
db.ExecuteNonQuery(@"
CREATE COLUMNFAMILY Cql3List (
Id int PRIMARY KEY,
TagList list<text> --list of strings
);");
db.ExecuteNonQuery(@"
CREATE COLUMNFAMILY Cql3Set (
Id int PRIMARY KEY,
TagSet set<uuid> --set of Guids
);");
db.ExecuteNonQuery(@"
CREATE COLUMNFAMILY Cql3Map (
Id int PRIMARY KEY,
TagMap map<bigint,uuid> --map of long integers and Guids
);");
db.Keyspace.ClearCachedKeyspaceSchema();
var family = db.GetColumnFamily <AsciiType>("Standard");
var superFamily = db.GetColumnFamily <AsciiType, AsciiType>("Super");
var userFamily = db.GetColumnFamily("Users");
var counterFamily = db.GetColumnFamily("Counters");
ResetFamily(family);
ResetSuperFamily(superFamily);
ResetUsersFamily(userFamily);
ResetCounterColumnFamily(counterFamily);
}
}
public static IMarshaller GetMarshallerForCassandraType(CassandraType type)
{
return TypeDescriptions.Where(td => td.Type == type).First().Marshaller;
}
public GetColumn(BytesType key, CassandraType superColumnName, CassandraType columnName)
{
Key = key;
SuperColumnName = superColumnName;
ColumnName = columnName;
}
public GetColumn(BytesType key, CassandraType columnName)
{
Key = key;
ColumnName = columnName;
}
public MultiGetSuperColumnSlice(IEnumerable <BytesType> keys, CassandraType superColumnName, CassandraSlicePredicate columnSlicePredicate)
{
Keys = keys.ToList();
SuperColumnName = superColumnName;
SlicePredicate = columnSlicePredicate;
}
public CassandraColumnSchema(ColumnDef def, CassandraType columnNameType)
{
NameType = columnNameType;
Name = CassandraObject.GetCassandraObjectFromDatabaseByteArray(def.Name, columnNameType);
ValueType = CassandraType.GetCassandraType(def.Validation_class);
}
public GetSuperColumnSlice(BytesType key, CassandraType superColumnName, CassandraSlicePredicate columnSlicePredicate)
{
Key = key;
SuperColumnName = superColumnName;
SlicePredicate = columnSlicePredicate;
}
public RemoveSuperColumn(BytesType key, CassandraType superColumnName)
{
Key = key;
SuperColumnName = superColumnName;
}
/// <summary>
///
/// </summary>
/// <param name="binder"></param>
/// <param name="value"></param>
/// <returns></returns>
public override bool TrySetColumn(object name, object value)
{
if (!(value is FluentSuperColumn <CompareWith, CompareSubcolumnWith>))
{
throw new ArgumentException("Value must be of type " + typeof(FluentSuperColumn <CompareWith, CompareSubcolumnWith>) + ", because this column family is of type Super.", "value");
}
var col = Columns.FirstOrDefault(c => c.ColumnName == name);
var mutationType = col == null ? MutationType.Added : MutationType.Changed;
col = (FluentSuperColumn <CompareWith, CompareSubcolumnWith>)value;
((FluentSuperColumn <CompareWith, CompareSubcolumnWith>)col).ColumnName = CassandraType.GetType <CompareWith>(name);
int index = Columns.IndexOf(col);
_columns.SupressChangeNotification = true;
if (index < 0)
{
Columns.Add(col);
}
else
{
Columns.Insert(index, col);
}
_columns.SupressChangeNotification = false;
// notify the tracker that the column has changed
OnColumnMutated(mutationType, col);
return(true);
}
public GetSuperColumnIndexedSlices(CassandraIndexClause indexClause, CassandraType superColumnName, CassandraSlicePredicate columnSlicePredicate)
{
IndexClause = indexClause;
SuperColumnName = superColumnName;
SlicePredicate = columnSlicePredicate;
}
