private WritableBuffer regionImpl()

in src/main/java/org/apache/datasketches/memory/internal/WritableBufferImpl.java [117:144]

27 lines of code
11 McCabe index (conditional complexity)


  private WritableBuffer regionImpl(
      final long offsetBytes,
      final long capacityBytes,
      final boolean localReadOnly,
      final ByteOrder byteOrder) {
    if (!this.isAlive()) { throw new IllegalStateException("This Buffer is not alive."); }
    Objects.requireNonNull(byteOrder, "byteOrder must be non-null.");
    final boolean readOnly = isReadOnly() || localReadOnly;
    final MemorySegment slice = (readOnly && !seg.isReadOnly())
        ? seg.asSlice(offsetBytes, capacityBytes).asReadOnly()
        : seg.asSlice(offsetBytes, capacityBytes);
    final boolean duplicateType = isDuplicate();
    final boolean mapType = seg.isMapped();
    final boolean directType = seg.isNative();
    final boolean nativeBOType = byteOrder == ByteOrder.nativeOrder();
    final boolean byteBufferType = hasByteBuffer();
    final int type = BUFFER | REGION
        | (readOnly ? READONLY : 0)
        | (duplicateType ? DUPLICATE : 0)
        | (mapType ? MAP : 0)
        | (directType ? DIRECT : 0)
        | (nativeBOType ? NATIVE_BO : NONNATIVE_BO)
        | (byteBufferType ? BYTEBUF : 0);

    final WritableBuffer wbuf = selectBuffer(slice, type, memReqSvr, byteBufferType, mapType, nativeBOType);
    wbuf.setStartPositionEnd(0, 0, wbuf.getCapacity());
    return wbuf;
  }