static final String toHex()

in datasketches-memory-java8/src/main/java/org/apache/datasketches/memory/internal/ResourceImpl.java [399:448]
47 lines of code
6 McCabe index (conditional complexity)

  static final String toHex(final ResourceImpl state, final String preamble, final long offsetBytes,
      final int lengthBytes) {
    final long capacity = state.getCapacity();
    ResourceImpl.checkBounds(offsetBytes, lengthBytes, capacity);
    final StringBuilder sb = new StringBuilder();
    final Object uObj = state.getUnsafeObject();
    final String uObjStr;
    final long uObjHeader;
    if (uObj == null) {
      uObjStr = "null";
      uObjHeader = 0;
    } else {
      uObjStr =  uObj.getClass().getSimpleName() + ", " + (uObj.hashCode() & 0XFFFFFFFFL);
      uObjHeader = UnsafeUtil.getArrayBaseOffset(uObj.getClass());
    }
    final ByteBuffer bb = state.getByteBuffer();
    final String bbStr = bb == null ? "null"
            : bb.getClass().getSimpleName() + ", " + (bb.hashCode() & 0XFFFFFFFFL);
    final MemoryRequestServer memReqSvr = state.getMemoryRequestServer();
    final String memReqStr = memReqSvr != null
        ? memReqSvr.getClass().getSimpleName() + ", " + (memReqSvr.hashCode() & 0XFFFFFFFFL)
        : "null";
    final long cumBaseOffset = state.getCumulativeOffset(0);
    sb.append(preamble).append(LS);
    sb.append("UnsafeObj, hashCode : ").append(uObjStr).append(LS);
    sb.append("UnsafeObjHeader     : ").append(uObjHeader).append(LS);
    sb.append("ByteBuf, hashCode   : ").append(bbStr).append(LS);
    sb.append("RegionOffset        : ").append(state.getTotalOffset()).append(LS);
    sb.append("Capacity            : ").append(capacity).append(LS);
    sb.append("CumBaseOffset       : ").append(cumBaseOffset).append(LS);
    sb.append("MemReq, hashCode    : ").append(memReqStr).append(LS);
    sb.append("Valid               : ").append(state.isValid()).append(LS);
    sb.append("Read Only           : ").append(state.isReadOnly()).append(LS);
    sb.append("Type Byte Order     : ").append(state.getByteOrder().toString()).append(LS);
    sb.append("Native Byte Order   : ").append(ByteOrder.nativeOrder().toString()).append(LS);
    sb.append("JDK Runtime Version : ").append(UnsafeUtil.JDK).append(LS);
    //Data detail
    sb.append("Data, littleEndian  :  0  1  2  3  4  5  6  7");

    for (long i = 0; i < lengthBytes; i++) {
      final int b = unsafe.getByte(uObj, cumBaseOffset + offsetBytes + i) & 0XFF;
      if (i % 8 == 0) { //row header
        sb.append(String.format("%n%20s: ", offsetBytes + i));
      }
      sb.append(String.format("%02x ", b));
    }
    sb.append(LS);

    return sb.toString();
  }