public void rollback()

in encryption/src/main/java/org/apache/solr/update/DirectUpdateHandler2Copy.java [847:881]

• 25 lines of code
• 3 McCabe index (conditional complexity)

  public void rollback(RollbackUpdateCommand cmd) throws IOException {
    TestInjection.injectDirectUpdateLatch();
    if (core.getCoreContainer().isZooKeeperAware()) {
      throw new UnsupportedOperationException(
        "Rollback is currently not supported in SolrCloud mode. (SOLR-4895)");
    }

    rollbackCommands.mark();

    boolean error = true;

    try {
      log.info("start {}", cmd);

      rollbackWriter();

      // callPostRollbackCallbacks();

      // reset commit tracking
      commitTracker.didRollback();
      softCommitTracker.didRollback();

      log.info("end_rollback");

      error = false;
    } finally {
      addCommandsCumulative.mark(-addCommands.sumThenReset());
      deleteByIdCommandsCumulative.mark(-deleteByIdCommands.sumThenReset());
      deleteByQueryCommandsCumulative.mark(-deleteByQueryCommands.sumThenReset());
      if (error) {
        numErrors.increment();
        numErrorsCumulative.mark();
      }
    }
  }