Method OpenInputReader

cpp/src/arrow/filesystem/mockfs.cc:417–430

  }

  Result<std::shared_ptr<io::BufferReader>> OpenInputReader(const std::string& path) {
    ARROW_RETURN_NOT_OK(internal::AssertNoTrailingSlash(path));
    auto parts = SplitAbstractPath(path);
    RETURN_NOT_OK(ValidateAbstractPathParts(parts));

    Entry* entry = FindEntry(parts);
    if (entry == nullptr) {
      return PathNotFound(path);
    }
    if (!entry->is_file()) {
      return NotAFile(path);
    }
    return std::make_shared<MockFSInputStream>(entry->as_file());
  }
};

MockFileSystem::~MockFileSystem() = default;