message: fixed bug on bp4 dir name
diff: @@ -188,7 +188,7 @@ std::string BP4Base::GetBPMetadataFileName(const std::string &name) const noexce
  if (lastPathSeparator != std::string::npos)
  {
  - bpRoot = bpName.substr(lastPathSeparator);
  + bpRoot = bpName.substr(lastPathSeparator+1);
  }
  //const size_t index =
  @@ -199,7 +199,7 @@ std::string BP4Base::GetBPMetadataFileName(const std::string &name) const noexce
  //const std::string bpRankName(bpName + ".dir" + PathSeparator + bpRoot +
  // "." + std::to_string(index));
  - const std::string bpMetaDataRankName(bpRoot + PathSeparator + "md." + std::to_string(index));
  + const std::string bpMetaDataRankName(bpName + PathSeparator + "md." + std::to_string(index));
  return bpMetaDataRankName;
  }
  @@ -232,7 +232,7 @@ std::string BP4Base::GetBPMetadataIndexFileName(const std::string &name) const
  if (lastPathSeparator != std::string::npos)
  {
  - bpRoot = bpName.substr(lastPathSeparator);
  + bpRoot = bpName.substr(lastPathSeparator+1);
  }
  //const size_t index =
  @@ -243,7 +243,7 @@ std::string BP4Base::GetBPMetadataIndexFileName(const std::string &name) const
  //const std::string bpRankName(bpName + ".dir" + PathSeparator + bpRoot +
  // "." + std::to_string(index));
  - const std::string bpMetaDataIndexRankName(bpRoot + PathSeparator + "md.idx");
  + const std::string bpMetaDataIndexRankName(bpName + PathSeparator + "md.idx");
  return bpMetaDataIndexRankName;
  }
  @@ -900,7 +900,7 @@ std::string BP4Base::GetBPSubStreamName(const std::string &name,
  if (lastPathSeparator != std::string::npos)
  {
  - bpRoot = bpName.substr(lastPathSeparator);
  + bpRoot = bpName.substr(lastPathSeparator+1);
  }
  const size_t index =
  @@ -910,7 +910,7 @@ std::string BP4Base::GetBPSubStreamName(const std::string &name,
  //const std::string bpRankName(bpName + ".dir" + PathSeparator + bpRoot +
  // "." + std::to_string(index));
  - const std::string bpRankName(bpRoot + PathSeparator + "data." + std::to_string(index));
  + const std::string bpRankName(bpName + PathSeparator + "data." + std::to_string(index));
  return bpRankName;
  }
  