public override Dictionary <TKey, TValue> ConvertFromInternal(object value)
{
if (value is byte[])
{
var components = new Dictionary <TKey, TValue>();
var keyTypeHint = typeof(TKey);
var valueTypeHint = typeof(TValue);
using (var bytes = new MemoryStream((byte[])value))
{
// number of key / value pairs
var numEntriesBytes = new byte[2];
if (bytes.Read(numEntriesBytes, 0, 2) <= 0)
{
return(components);
}
var nEntries = BitConverter.ToUInt16(numEntriesBytes, 0);
for (var i = 0; i < nEntries; i++)
{
//get the length of the key
var keyLengthBytes = new byte[2];
bytes.Read(keyLengthBytes, 0, 2);
var keyLength = BitConverter.ToUInt16(keyLengthBytes, 0);
//read the content of the key into a buffer
var keyBuffer = new byte[keyLength];
bytes.Read(keyBuffer, 0, keyLength);
var entryKey = CassandraObject.GetCassandraObjectFromDatabaseByteArray(keyBuffer, keyTypeHint);
//get the length of the value
var valueLengthBytes = new byte[2];
bytes.Read(valueLengthBytes, 0, 2);
var valueLength = BitConverter.ToUInt16(valueLengthBytes, 0);
//read the content of the key into a buffer
var valueBuffer = new byte[valueLength];
bytes.Read(valueBuffer, 0, valueLength);
var entryValue = CassandraObject.GetCassandraObjectFromDatabaseByteArray(valueBuffer, valueTypeHint);
components.Add((TKey)entryKey, (TValue)entryValue);
}
}
return(components);
}
if (value.GetType().GetInterfaces().Contains(typeof(IEnumerable <object>)))
{
return(new Dictionary <TKey, TValue>(((IEnumerable <object>)value).Cast <KeyValuePair <TKey, TValue> >().ToDictionary(k => k.Key, v => v.Value)));
}
if (value.GetType().GetInterfaces().Contains(typeof(IEnumerable <KeyValuePair <TKey, TValue> >)))
{
return(new Dictionary <TKey, TValue>(((IEnumerable <KeyValuePair <TKey, TValue> >)value).ToDictionary(k => k.Key, v => v.Value)));
}
return(null);
}
private static T ConvertTo <T>(CassandraObject type)
{
if (type == null)
{
return(default(T));
}
return(type.GetValue <T>());
}
public static ListType <T> From <TIn>(List <TIn> obj)
{
//Check to make sure we can convert
if (ComponentType.CreateInstance().CanConvertFrom(typeof(TIn)))
{
return(new ListType <T>(obj.Select(o => (T)CassandraObject.GetCassandraObjectFromObject(o, typeof(T)))));
}
throw new ArgumentException(string.Format("can't convert list of type {0} to ListType of type {1}", typeof(TIn), typeof(T)));
}
public static MapType <TKey, TValue> From <TKeyIn, TValueIn>(IDictionary <TKeyIn, TValueIn> obj)
{
//Check to make sure we can convert
if (KeyType.CreateInstance().CanConvertFrom(typeof(TKeyIn)) && ValueType.CreateInstance().CanConvertFrom(typeof(TValueIn)))
{
return(new MapType <TKey, TValue>(obj.ToDictionary(
k => (TKey)CassandraObject.GetCassandraObjectFromObject(k.Key, KeyType),
v => (TValue)CassandraObject.GetCassandraObjectFromObject(v.Value, ValueType))));
}
throw new ArgumentException(string.Format("can't convert IDictionary of type {0},{1} to MapType of type {2},{3}", typeof(TKeyIn), typeof(TValueIn), typeof(TKey), typeof(TValue)));
}
public void CassandraType_Cast()
{
// arrange
var expected = new CassandraObject[] { (AsciiType)"string1", (LongType)300 };
// act
CompositeType actualType = expected;
CassandraObject actual = actualType;
// assert
Assert.True(expected.SequenceEqual((CassandraObject[])actual));
}
public void CassandraType_Cast()
{
// arrange
BigInteger expected = 100;
IntegerType actualType = expected;
// act
CassandraObject actual = actualType;
// assert
Assert.Equal(expected, (BigInteger)actual);
}
public void CassandraType_Cast()
{
// arrange
Guid expected = guid;
TimeUUIDType actualType = expected;
// act
CassandraObject actual = actualType;
// assert
Assert.Equal(expected, (Guid)actual);
}
public void CassandraType_Cast()
{
// arranage
string expected = "The quick brown fox jumps over the lazy dog.";
UTF8Type actualType = expected;
// act
CassandraObject actual = actualType;
// assert
Assert.Equal(expected, (string)actual);
}
public void CassandraType_Cast()
{
//arrange
var expected = _setType;
//act
SetType <UTF8Type> actualType = expected;
CassandraObject actual = actualType;
//assert
Assert.True(expected.SequenceEqual((CassandraObject[])actual));
}
public void CassandraType_Cast()
{
//arrange
var expected = _mapType;
//act
MapType <LongType, UUIDType> actualType = expected;
CassandraObject actual = actualType;
//assert
Assert.True(expected.SequenceEqual(actual.GetValue <Dictionary <LongType, UUIDType> >()));
}
public void CassandraType_Cast()
{
// arranage
long expected = 100L;
IntegerType actualType = expected;
// act
CassandraObject actual = actualType;
// assert
Assert.Equal(expected, (long)actual);
}
public void CassandraType_Cast()
{
// arrange
BigDecimal expected = bigDecimal;
DecimalType actualType = expected;
// act
CassandraObject actual = actualType;
// assert
Assert.Equal(expected, (BigDecimal)actual);
}
public void JavaBytes_To_CompositeType()
{
// arrange
var expected = new CassandraObject[] { (BytesType)_compositeType[0].GetValue <string>(), (BytesType)_compositeType[1].GetValue <long>() };
// act
var actual = new CompositeType();
actual.SetValueFromBigEndian(_javaByteOrder);
// assert
Assert.True(expected.SequenceEqual((CassandraObject[])actual));
}
public void Implicit_ByteArray_Cast()
{
// arrange
var expected = new CassandraObject[] { (AsciiType)"string1", (LongType)300 };
byte[] bytes = GetBytes(expected);
// act
CompositeType actual = bytes;
// assert
Assert.True(expected.SequenceEqual(actual));
}
public void CassandraType_Cast()
{
// arrange
byte[] expected = new byte[] { 0, 32, 0, 16, 0, 0, 64, 128 };
BytesType actualType = expected;
// act
CassandraObject actualCassandraType = actualType;
byte[] actual = actualCassandraType;
// assert
Assert.True(expected.SequenceEqual(actual));
}
public override Dictionary <TKey, TValue> FromBigEndian(byte[] value)
{
var components = new Dictionary <TKey, TValue>();
var keyTypeHint = typeof(TKey);
var valueTypeHint = typeof(TValue);
if (value == null)
{
return(components);
}
using (var bytes = new MemoryStream((byte[])value))
{
// number of key / value pairs
var numEntriesBytes = new byte[2];
if (bytes.Read(numEntriesBytes, 0, 2) <= 0)
{
return(components);
}
var nEntries = BitConverter.ToUInt16(ConvertEndian(numEntriesBytes), 0);
for (var i = 0; i < nEntries; i++)
{
//get the length of the key
var keyLengthBytes = new byte[2];
bytes.Read(keyLengthBytes, 0, 2);
var keyLength = BitConverter.ToUInt16(ConvertEndian(keyLengthBytes), 0);
//read the content of the key into a buffer
var keyBuffer = new byte[keyLength];
bytes.Read(keyBuffer, 0, keyLength);
var entryKey = CassandraObject.GetCassandraObjectFromDatabaseByteArray(keyBuffer, keyTypeHint);
//get the length of the value
var valueLengthBytes = new byte[2];
bytes.Read(valueLengthBytes, 0, 2);
var valueLength = BitConverter.ToUInt16(ConvertEndian(valueLengthBytes), 0);
//read the content of the key into a buffer
var valueBuffer = new byte[valueLength];
bytes.Read(valueBuffer, 0, valueLength);
var entryValue = CassandraObject.GetCassandraObjectFromDatabaseByteArray(valueBuffer, valueTypeHint);
components.Add((TKey)entryKey, (TValue)entryValue);
}
}
return(components);
}
public static CassandraType GetCassandraType(CassandraObject obj)
{
var typeName = obj.GetType().Name;
var cassandraType = (CassandraType)null;
switch (typeName.ToLower())
{
case "asciitype": cassandraType = AsciiType; break;
case "booleantype": cassandraType = BooleanType; break;
case "bytestype": cassandraType = BytesType; break;
case "datetype": cassandraType = DateType; break;
case "decimaltype": cassandraType = DecimalType; break;
case "doubletype": cassandraType = DoubleType; break;
case "floattype": cassandraType = FloatType; break;
case "int32type": cassandraType = Int32Type; break;
case "integertype": cassandraType = IntegerType; break;
case "lexicaluuidtype": cassandraType = LexicalUUIDType; break;
case "longtype": cassandraType = LongType; break;
case "timeuuidtype": cassandraType = TimeUUIDType; break;
case "utf8type": cassandraType = UTF8Type; break;
case "uuidtype": cassandraType = UUIDType; break;
case "emptytype": cassandraType = EmptyType; break;
case "inetaddresstype": cassandraType = InetAddressType; break;
// these need work
//case "compositetype": cassandraType = CompositeType; break;
//case "dynamiccompositetype": cassandraType = DynamicCompositeType; break;
//case "countercolumntype": cassandraType = CounterColumnType; break;
//case "reversedtype": cassandraType = ReversedType; break;
default: throw new CassandraException("Type '" + typeName + "' not found.");
}
return(cassandraType);
}
public override List <T> ConvertFromInternal(object value)
{
if (value is byte[])
{
var components = new List <T>();
var typeHint = typeof(T);
using (var bytes = new MemoryStream((byte[])value))
{
// number of elements
var numElementsBytes = new byte[2];
if (bytes.Read(numElementsBytes, 0, 2) <= 0)
{
return(components);
}
var nElements = BitConverter.ToUInt16(numElementsBytes, 0);
for (var i = 0; i < nElements; i++)
{
//get the length of this element
var elementLengthBytes = new byte[2];
bytes.Read(elementLengthBytes, 0, 2);
var elementLength = BitConverter.ToUInt16(elementLengthBytes, 0);
//read the content of the element into a buffer
var buffer = new byte[elementLength];
bytes.Read(buffer, 0, elementLength);
var component = CassandraObject.GetCassandraObjectFromDatabaseByteArray(buffer, typeHint);
components.Add((T)component);
}
}
return(components);
}
if (value.GetType().GetInterfaces().Contains(typeof(IEnumerable <object>)))
{
return(new List <T>(((IEnumerable <object>)value).Cast <T>()));
}
if (value.GetType().GetInterfaces().Contains(typeof(IEnumerable <T>)))
{
return(new List <T>((IEnumerable <T>)value));
}
return(null);
}
public void Explicit_Dictionary_Cast()
{
//arrange
Dictionary <string, int> expected = new Dictionary <string, int>()
{
{ "item1", 1 }, { "item2", 2 }, { "item3", 3 }
};
//act
MapType <UTF8Type, IntegerType> actualType = MapType <UTF8Type, IntegerType> .From(expected);
CassandraObject actual = actualType;
//assert
Assert.True(expected.SequenceEqual(actual.GetValue <Dictionary <string, int> >()));
}
public void Explicit_List_Cast()
{
//arrange
List <int> expected = new List <int>()
{
1, 2, 3
};
SetType <IntegerType> actualType = SetType <IntegerType> .From(expected);
//act
CassandraObject actual = actualType;
var actualValues = actual.GetValue <List <object> >();
//assert
Assert.True(expected.SequenceEqual(actualValues.Select(Convert.ToInt32)));
}
public override List <T> FromBigEndian(byte[] value)
{
var components = new List <T>();
var typeHint = typeof(T);
if (value == null)
{
return(components);
}
using (var bytes = new MemoryStream(value))
{
// number of elements
var numElementsBytes = new byte[2];
if (bytes.Read(numElementsBytes, 0, 2) <= 0)
{
return(components);
}
var nElements = BitConverter.ToUInt16(ConvertEndian(numElementsBytes), 0);
for (var i = 0; i < nElements; i++)
{
//get the length of this element
var elementLengthBytes = new byte[2];
bytes.Read(elementLengthBytes, 0, 2);
var elementLength = BitConverter.ToUInt16(ConvertEndian(elementLengthBytes), 0);
//read the content of the element into a buffer
var buffer = new byte[elementLength];
bytes.Read(buffer, 0, elementLength);
var component = CassandraObject.GetCassandraObjectFromDatabaseByteArray(buffer, typeHint);
components.Add((T)component);
}
}
return(components);
}
