public static void EncodeValue(PropertyBlock block, int keyId, Value value, DynamicRecordAllocator stringAllocator, DynamicRecordAllocator arrayAllocator, bool allowStorePointsAndTemporal)
{
if (value is ArrayValue)
{
object asObject = value.AsObject();
// Try short array first, i.e. inlined in the property block
if (ShortArray.encode(keyId, asObject, block, PropertyType.PayloadSize))
{
return;
}
// Fall back to dynamic array store
IList <DynamicRecord> arrayRecords = new List <DynamicRecord>();
AllocateArrayRecords(arrayRecords, asObject, arrayAllocator, allowStorePointsAndTemporal);
SetSingleBlockValue(block, keyId, PropertyType.Array, Iterables.first(arrayRecords).Id);
foreach (DynamicRecord valueRecord in arrayRecords)
{
valueRecord.SetType(PropertyType.Array.intValue());
}
block.ValueRecords = arrayRecords;
}
else
{
value.WriteTo(new PropertyBlockValueWriter(block, keyId, stringAllocator, allowStorePointsAndTemporal));
}
}
private static sbyte[] CreateBitCompactedArray(ShortArray type, object array, int offsetBytes)
{
Type componentType = array.GetType().GetElementType();
bool isPrimitiveByteArray = componentType.Equals(Byte.TYPE);
bool isByteArray = componentType.Equals(typeof(Byte)) || isPrimitiveByteArray;
int arrayLength = Array.getLength(array);
int requiredBits = isByteArray ? (sizeof(sbyte) * 8) : type.calculateRequiredBitsForArray(array, arrayLength);
int totalBits = requiredBits * arrayLength;
int bitsUsedInLastByte = totalBits % 8;
bitsUsedInLastByte = bitsUsedInLastByte == 0 ? 8 : bitsUsedInLastByte;
if (isByteArray)
{
return(CreateBitCompactedByteArray(type, isPrimitiveByteArray, array, bitsUsedInLastByte, requiredBits, offsetBytes));
}
else
{
int numberOfBytes = (totalBits - 1) / 8 + 1;
numberOfBytes += NUMBER_HEADER_SIZE; // type + rest + requiredBits header. TODO no need to use full bytes
Bits bits = Bits.bits(numberOfBytes);
bits.Put(( sbyte )type.intValue());
bits.Put(( sbyte )bitsUsedInLastByte);
bits.Put(( sbyte )requiredBits);
type.writeAll(array, arrayLength, requiredBits, bits);
return(bits.AsBytes(offsetBytes));
}
}
private void AssertCanEncodeAndDecodeToSameValue(object value, int payloadSize)
{
PropertyBlock target = new PropertyBlock();
bool encoded = ShortArray.encode(0, value, target, payloadSize);
assertTrue(encoded);
assertEquals(Values.of(value), ShortArray.decode(target));
}
public static Value GetRightArray(Pair <sbyte[], sbyte[]> data)
{
sbyte[] header = data.First();
sbyte[] bArray = data.Other();
sbyte typeId = header[0];
if (typeId == PropertyType.String.intValue())
{
ByteBuffer headerBuffer = ByteBuffer.wrap(header, 1, header.Length - 1);
int arrayLength = headerBuffer.Int;
string[] result = new string[arrayLength];
ByteBuffer dataBuffer = ByteBuffer.wrap(bArray);
for (int i = 0; i < arrayLength; i++)
{
int byteLength = dataBuffer.Int;
sbyte[] stringByteArray = new sbyte[byteLength];
dataBuffer.get(stringByteArray);
result[i] = PropertyStore.DecodeString(stringByteArray);
}
return(Values.stringArray(result));
}
else if (typeId == PropertyType.Geometry.intValue())
{
GeometryType.GeometryHeader geometryHeader = GeometryType.GeometryHeader.fromArrayHeaderBytes(header);
return(GeometryType.decodeGeometryArray(geometryHeader, bArray));
}
else if (typeId == PropertyType.Temporal.intValue())
{
TemporalType.TemporalHeader temporalHeader = TemporalType.TemporalHeader.fromArrayHeaderBytes(header);
return(TemporalType.decodeTemporalArray(temporalHeader, bArray));
}
else
{
ShortArray type = ShortArray.typeOf(typeId);
int bitsUsedInLastByte = header[1];
int requiredBits = header[2];
if (requiredBits == 0)
{
return(type.createEmptyArray());
}
if (type == ShortArray.Byte && requiredBits == (sizeof(sbyte) * 8))
{ // Optimization for byte arrays (probably large ones)
return(Values.byteArray(bArray));
}
else
{ // Fallback to the generic approach, which is a slower
Bits bits = Bits.bitsFromBytes(bArray);
int length = (bArray.Length * 8 - (8 - bitsUsedInLastByte)) / requiredBits;
return(type.createArray(length, bits, requiredBits));
}
}
}
private static sbyte[] CreateUncompactedArray(ShortArray type, object array, int offsetBytes)
{
int arrayLength = Array.getLength(array);
int bytesPerElement = type.maxBits / 8;
sbyte[] bytes = new sbyte[NUMBER_HEADER_SIZE + bytesPerElement * arrayLength + offsetBytes];
bytes[offsetBytes + 0] = ( sbyte )type.intValue();
bytes[offsetBytes + 1] = ( sbyte )8;
bytes[offsetBytes + 2] = ( sbyte )type.maxBits;
type.writeAll(array, bytes, NUMBER_HEADER_SIZE + offsetBytes);
return(bytes);
}
public static sbyte[] EncodeFromNumbers(object array, int offsetBytes)
{
ShortArray type = ShortArray.typeOf(array);
if (type == null)
{
throw new System.ArgumentException(array + " not a valid array type.");
}
if (type == ShortArray.Double || type == ShortArray.Float)
{
// Skip array compaction for floating point numbers where compaction makes very little difference
return(CreateUncompactedArray(type, array, offsetBytes));
}
else
{
return(CreateBitCompactedArray(type, array, offsetBytes));
}
}
private static sbyte[] CreateBitCompactedByteArray(ShortArray type, bool isPrimitiveByteArray, object array, int bitsUsedInLastByte, int requiredBits, int offsetBytes)
{
int arrayLength = Array.getLength(array);
sbyte[] bytes = new sbyte[NUMBER_HEADER_SIZE + arrayLength + offsetBytes];
bytes[offsetBytes + 0] = ( sbyte )type.intValue();
bytes[offsetBytes + 1] = ( sbyte )bitsUsedInLastByte;
bytes[offsetBytes + 2] = ( sbyte )requiredBits;
if (isPrimitiveByteArray)
{
arraycopy(array, 0, bytes, NUMBER_HEADER_SIZE + offsetBytes, arrayLength);
}
else
{
sbyte?[] source = ( sbyte?[] )array;
for (int i = 0; i < source.Length; i++)
{
bytes[NUMBER_HEADER_SIZE + offsetBytes + i] = source[i].Value;
}
}
return(bytes);
}
public static ArrayValue ReadArrayFromBuffer(ByteBuffer buffer)
{
if (buffer.limit() <= 0)
{
throw new System.InvalidOperationException("Given buffer is empty");
}
sbyte typeId = buffer.get();
buffer.order(ByteOrder.BIG_ENDIAN);
try
{
if (typeId == PropertyType.String.intValue())
{
int arrayLength = buffer.Int;
string[] result = new string[arrayLength];
for (int i = 0; i < arrayLength; i++)
{
int byteLength = buffer.Int;
result[i] = UTF8.decode(buffer.array(), buffer.position(), byteLength);
buffer.position(buffer.position() + byteLength);
}
return(Values.stringArray(result));
}
else if (typeId == PropertyType.Geometry.intValue())
{
GeometryType.GeometryHeader header = GeometryType.GeometryHeader.fromArrayHeaderByteBuffer(buffer);
sbyte[] byteArray = new sbyte[buffer.limit() - buffer.position()];
buffer.get(byteArray);
return(GeometryType.decodeGeometryArray(header, byteArray));
}
else if (typeId == PropertyType.Temporal.intValue())
{
TemporalType.TemporalHeader header = TemporalType.TemporalHeader.fromArrayHeaderByteBuffer(buffer);
sbyte[] byteArray = new sbyte[buffer.limit() - buffer.position()];
buffer.get(byteArray);
return(TemporalType.decodeTemporalArray(header, byteArray));
}
else
{
ShortArray type = ShortArray.typeOf(typeId);
int bitsUsedInLastByte = buffer.get();
int requiredBits = buffer.get();
if (requiredBits == 0)
{
return(type.createEmptyArray());
}
if (type == ShortArray.Byte && requiredBits == (sizeof(sbyte) * 8))
{ // Optimization for byte arrays (probably large ones)
sbyte[] byteArray = new sbyte[buffer.limit() - buffer.position()];
buffer.get(byteArray);
return(Values.byteArray(byteArray));
}
else
{ // Fallback to the generic approach, which is a slower
Bits bits = Bits.bitsFromBytes(buffer.array(), buffer.position());
int length = ((buffer.limit() - buffer.position()) * 8 - (8 - bitsUsedInLastByte)) / requiredBits;
return(type.createArray(length, bits, requiredBits));
}
}
}
finally
{
buffer.order(ByteOrder.LITTLE_ENDIAN);
}
}
private void AssertCanNotEncode(object intArray, int payloadSize)
{
assertFalse(ShortArray.encode(0, intArray, new PropertyBlock(), payloadSize));
}
