Examples of org.apache.flume.Transaction.rollback()

org.apache.flume.Transaction.rollback()
Indicates that the transaction can must be aborted. It is required that a transaction be in progress when this method is invoked.

      } else {
        sinkCounter.addToEventDrainSuccessCount(txnEventCount);
        return Status.READY;
      }
    } catch (IOException eIO) {
      transaction.rollback();
      LOG.warn("HDFS IO error", eIO);
      return Status.BACKOFF;
    } catch (Throwable th) {
      transaction.rollback();
      LOG.error("process failed", th);

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    } catch (IOException eIO) {
      transaction.rollback();
      LOG.warn("HDFS IO error", eIO);
      return Status.BACKOFF;
    } catch (Throwable th) {
      transaction.rollback();
      LOG.error("process failed", th);
      if (th instanceof Error) {
        throw (Error) th;
      } else {
        throw new EventDeliveryException(th);

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                input.addAll(putWithoutCommit(channel, tx, "failAfterPut", 3));
                try {
                  latch.await();
                  tx.commit();
                } catch (InterruptedException e) {
                  tx.rollback();
                  Throwables.propagate(e);
                } finally {
                  tx.close();
                }
              }

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    Transaction transaction;
    transaction = channel.getTransaction();
    transaction.begin();
    Event event = channel.take();
    Assert.assertNotNull(event);
    transaction.rollback();
    transaction.close();
    // ensure the take the didn't change the state of the capacity
    Assert.assertEquals(0, fillChannel(channel, "capacity").size());
    // ensure we the events back
    Assert.assertEquals(5, takeEvents(channel, 1, 5).size());

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    channel.start();
    putEvents(channel, "testing-reference-counting", 1, 15);
    Transaction tx = channel.getTransaction();
    takeWithoutCommit(channel, tx, 10);
    forceCheckpoint(channel);
    tx.rollback();
    //Since we did not commit the original transaction. now we should get 15
    //events back.
    final Set<String> takenEvents = Sets.newHashSet();
    Executors.newSingleThreadExecutor().submit(new Runnable() {
      @Override

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    }


    try {
      txn.commit();
    } catch (Throwable t) {
      txn.rollback();
    } finally {
      txn.close();
    }


    source.stop();

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    }


    try {
      txn.commit();
    } catch (Throwable t) {
      txn.rollback();
    } finally {
      txn.close();
    }


    source.stop();

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              } else {
                if (testRollbacks &&
                  index == 4 &&
                  (!rolledBack.get()) &&
                  startedGettingEvents.get()) {
                  tx.rollback();
                  tx.close();
                  tx = null;
                  rolledBack.set(true);
                  final int eventsLocalSize = eventsLocal.size();
                  eventsLocal.clear();

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                }
              }
            } catch (Exception ex) {
              eventsLocal.clear();
              if (tx != null) {
                tx.rollback();
                tx.close();
              }
              tx = null;
              ex.printStackTrace();
            }

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        Event event = channel.take();
        String content = new String(event.getBody(), Charsets.UTF_8);
        Assert.assertEquals("File " + i, content);
        txn.commit();
      } catch (Throwable t) {
        txn.rollback();
      } finally {
        txn.close();
      }
      source.stop();
      Assert.assertFalse("Fatal error on iteration " + i, source.hasFatalError());

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