public void populate(final int count){ for (int i = 0; i < count; i++) { if(value != null) { ((BitVector) vector).setSafe(i, value ? 1 : 0); } } vector.setValueCount(count); }
/** * * @param allocator * @param name * @return */ public static BitVector booleanVectorOf(BufferAllocator allocator,String name,int length) { BitVector float8Vector = new BitVector(name,allocator); float8Vector.allocateNew(length); float8Vector.setValueCount(length); return float8Vector; }
private static void writeBooleanData(BitVector vector, int valueCount) { final int even = 0; final int odd = 1; for (int i = 0; i < valueCount; i++) { if (i % 2 == 0) { vector.setSafe(i, even); } else { vector.setSafe(i, odd); } } vector.setValueCount(valueCount); }
public void writeNull() { vector.setNull(idx()); vector.setValueCount(idx()+1); } }
public void write(BitHolder h) { vector.setSafe(idx(), h); vector.setValueCount(idx()+1); }
public void writeBit(int value) { vector.setSafe(idx(), 1, value); vector.setValueCount(idx()+1); }
public void write(NullableBitHolder h) { vector.setSafe(idx(), h); vector.setValueCount(idx()+1); }
/** * * @param allocator * @param name * @param data * @return */ public static BitVector vectorFor(BufferAllocator allocator,String name,boolean[] data) { BitVector float8Vector = new BitVector(name,allocator); float8Vector.allocateNew(data.length); for(int i = 0; i < data.length; i++) { float8Vector.setSafe(i,data[i] ? 1 : 0); } float8Vector.setValueCount(data.length); return float8Vector; }
final BitVector output = (BitVector) allocationVectors.get(fieldName); decodeBoolean(input, output); output.setValueCount(recordsConsumedCurrentBatch);
private static Boolean[] populateBooleanValues(BitVector vector, int size) { assert size >= 4096; vector.allocateNew(size); Boolean[] booleanValues = new Boolean[size]; for (int i = 0; i < size; i++) { if (i < 64 || (i >= 256 && i < 256 + 64)) { vector.setNull(i); continue; } if ((i % 6) != 0) { /* every 6th value in boolean column is null */ if ((i & 1) == 0) { /* column value true */ vector.set(i, 1); booleanValues[i] = true; } else { /* column value false */ vector.set(i, 0); booleanValues[i] = false; } } else { vector.setNull(i); booleanValues[i] = null; } } vector.setValueCount(size); return booleanValues; }
private static Boolean[] populateBooleanValuesWithoutNull(BitVector vector, int size) { assert size >= 4096; vector.allocateNew(size); Boolean[] booleanValues = new Boolean[size]; for (int i = 0; i < size; i++) { if (i < 64 || (i >= 256 && i < 256 + 64)) { vector.setNull(i); continue; } if ((i % 6) != 0) { /* every 6th value in boolean column is null */ if ((i & 1) == 0) { /* column value true */ vector.set(i, 1); booleanValues[i] = true; } else { /* column value false */ vector.set(i, 0); booleanValues[i] = false; } } else { vector.setNull(i); booleanValues[i] = null; } } vector.setValueCount(size); return booleanValues; }
private BitVector bitVector(String name) { BitVector vec = new BitVector(name, getAllocator()); vec.allocateNew(COUNT); vec.set(0, 1); vec.set(1, 0); vec.setNull(2); vec.set(3, 1); vec.set(4, 1); vec.setValueCount(COUNT); return vec; }
inKey.setValueCount(count);
@Test public void testConvertBitsToBytes() { try ( BufferAllocator allocator = new RootAllocator(Integer.MAX_VALUE); BitVector bits = new BitVector("$bits$", allocator); UInt1Vector bytes = new UInt1Vector("$bits$", allocator); ) { int count = 100; for (int i = 0; i < count ; i++) { bits.setSafe(i, i % 2); } bits.setValueCount(count); ArrowBuf oldBuf = bits.getDataBuffer(); oldBuf.retain(); SerializedField.Builder fieldBuilder = TypeHelper.getMetadataBuilder(bits); ArrowBuf newBuf = convertBitsToBytes(allocator, fieldBuilder, oldBuf); bytes.setValueCount(count); SerializedField.Builder newfieldBuilder = TypeHelper.getMetadataBuilder(bytes); TypeHelper.loadData(bytes, newfieldBuilder.build(), newBuf); for (int i = 0; i < count ; i++) { assertEquals(i % 2, bytes.get(i)); } newBuf.release(); } }
@Test public void boolNullEveryOther() throws Exception { final int count = 1024; try ( BitVector in = new BitVector("in", allocator); BitVector out = new BitVector("out", allocator); ) { in.allocateNew(count); ArrowBuf tempBuf = allocator.buffer(1024); for (int i = 0; i < count; i ++) { if (i % 2 == 0) { in.set(i, 1); } } in.setValueCount(count); final PivotDef pivot = PivotBuilder.getBlockDefinition(new FieldVectorPair(in, out)); try ( final FixedBlockVector fbv = new FixedBlockVector(allocator, pivot.getBlockWidth()); final VariableBlockVector vbv = new VariableBlockVector(allocator, pivot.getVariableCount()); ) { fbv.ensureAvailableBlocks(count); Pivots.pivot(pivot, count, fbv, vbv); Unpivots.unpivot(pivot, fbv, vbv, 0, count); for (int i = 0; i < count; i++) { assertEquals(in.getObject(i), out.getObject(i)); } } tempBuf.release(); } }
in.setValueCount(count);
in.setValueCount(count);
BitVectorHelper.setValidityBit(valueBuf, 3, 0); in.setValueCount(count);