private static boolean valueEquals(
Type type, Slice leftSlice, int leftOffset, Slice rightSlice, int rightOffset) {
// check if null flags are the same
boolean leftIsNull = leftSlice.getByte(leftOffset) != 0;
boolean rightIsNull = rightSlice.getByte(rightOffset) != 0;
if (leftIsNull != rightIsNull) {
return false;
}
// if values are both null, they are equal
if (leftIsNull) {
return true;
}
if (type == Type.FIXED_INT_64 || type == Type.DOUBLE) {
long leftValue = leftSlice.getLong(leftOffset + SIZE_OF_BYTE);
long rightValue = rightSlice.getLong(rightOffset + SIZE_OF_BYTE);
return leftValue == rightValue;
} else if (type == Type.BOOLEAN) {
boolean leftValue = leftSlice.getByte(leftOffset + SIZE_OF_BYTE) != 0;
boolean rightValue = rightSlice.getByte(rightOffset + SIZE_OF_BYTE) != 0;
return leftValue == rightValue;
} else if (type == Type.VARIABLE_BINARY) {
int leftLength = getVariableBinaryLength(leftSlice, leftOffset);
int rightLength = getVariableBinaryLength(rightSlice, rightOffset);
return leftSlice.equals(
leftOffset + SIZE_OF_BYTE + SIZE_OF_INT,
leftLength,
rightSlice,
rightOffset + SIZE_OF_BYTE + SIZE_OF_INT,
rightLength);
} else {
throw new IllegalArgumentException("Unsupported type " + type);
}
}
private static int valueHashCode(Type type, Slice slice, int offset) {
boolean isNull = slice.getByte(offset) != 0;
if (isNull) {
return 0;
}
if (type == Type.FIXED_INT_64) {
return Longs.hashCode(slice.getLong(offset + SIZE_OF_BYTE));
} else if (type == Type.DOUBLE) {
long longValue = Double.doubleToLongBits(slice.getDouble(offset + SIZE_OF_BYTE));
return Longs.hashCode(longValue);
} else if (type == Type.BOOLEAN) {
return slice.getByte(offset + SIZE_OF_BYTE) != 0 ? 1 : 0;
} else if (type == Type.VARIABLE_BINARY) {
int sliceLength = getVariableBinaryLength(slice, offset);
return slice.hashCode(offset + SIZE_OF_BYTE + SIZE_OF_INT, sliceLength);
} else {
throw new IllegalArgumentException("Unsupported type " + type);
}
}
public void appendTo(int position, BlockBuilder builder) {
checkArgument(position >= 0 && position < positionOffsets.size());
int offset = positionOffsets.getInt(position);
if (slice.getByte(offset) != 0) {
builder.appendNull();
} else if (type == Type.FIXED_INT_64) {
builder.append(slice.getLong(offset + SIZE_OF_BYTE));
} else if (type == Type.DOUBLE) {
builder.append(slice.getDouble(offset + SIZE_OF_BYTE));
} else if (type == Type.BOOLEAN) {
builder.append(slice.getByte(offset + SIZE_OF_BYTE) != 0);
} else if (type == Type.VARIABLE_BINARY) {
int sliceLength = getVariableBinaryLength(slice, offset);
builder.append(slice.slice(offset + SIZE_OF_BYTE + SIZE_OF_INT, sliceLength));
} else {
throw new IllegalArgumentException("Unsupported type " + type);
}
}