public FileInputStream openRead()

in simplestore/src/main/java/com/uber/simplestore/impl/AtomicFile.java [155:173]

• 11 lines of code
• 5 McCabe index (conditional complexity)

  public FileInputStream openRead() throws FileNotFoundException {
    if (mLegacyBackupName.exists()) {
      rename(mLegacyBackupName, mBaseName);
    }

    // It was okay to call openRead() between startWrite() and finishWrite() for the first time
    // (because there is no backup file), where openRead() would open the file being written,
    // which makes no sense, but finishWrite() would still persist the write properly. For all
    // subsequent writes, if openRead() was called in between, it would see a backup file and
    // delete the file being written, the same behavior as our new implementation. So we only
    // need a special case for the first write, and don't delete the new file in this case so
    // that finishWrite() can still work.
    if (mNewName.exists() && mBaseName.exists()) {
      if (!mNewName.delete()) {
        Log.e(LOG_TAG, "Failed to delete outdated new file " + mNewName);
      }
    }
    return new FileInputStream(mBaseName);
  }