How to use

build

method

in

org.apache.bookkeeper.mledger.proto.MLDataFormats$ManagedCursorInfo$Builder

private ManagedCursorInfo parseManagedCursorInfo(byte[] data)
    throws ParseException, InvalidProtocolBufferException {
  // First try binary format, then fallback to text
  try {
    return ManagedCursorInfo.parseFrom(data);
  } catch (InvalidProtocolBufferException e) {
    // Fallback to parsing protobuf text format
    ManagedCursorInfo.Builder builder = ManagedCursorInfo.newBuilder();
    TextFormat.merge(new String(data, Encoding), builder);
    return builder.build();
  }
}

@Test(timeOut = 20000)
void updatingCursorNode() throws Exception {
  final MetaStore store = new MetaStoreImplZookeeper(zkc, executor);
  zkc.create("/managed-ledgers/my_test", "".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
  final CountDownLatch latch = new CountDownLatch(1);
  ManagedCursorInfo info = ManagedCursorInfo.newBuilder().setCursorsLedgerId(1).build();
  store.asyncUpdateCursorInfo("my_test", "c1", info, null, new MetaStoreCallback<Void>() {
    public void operationFailed(MetaStoreException e) {
      fail("should have succeeded");
    }
    public void operationComplete(Void result, Stat version) {
      // Update again using the version
      zkc.failNow(Code.CONNECTIONLOSS);
      ManagedCursorInfo info = ManagedCursorInfo.newBuilder().setCursorsLedgerId(2).build();
      store.asyncUpdateCursorInfo("my_test", "c1", info, version, new MetaStoreCallback<Void>() {
        public void operationFailed(MetaStoreException e) {
          // ok
          latch.countDown();
        }
        @Override
        public void operationComplete(Void result, Stat version) {
          fail("should have failed");
        }
      });
    }
  });
  latch.await();
}

  public Object answer(InvocationOnMock invocation) {
    ManagedCursorInfo info = ManagedCursorInfo.newBuilder().setCursorsLedgerId(cursorsLedgerId)
        .setMarkDeleteLedgerId(markDeleteLedgerId).setMarkDeleteEntryId(markDeleteEntryId)
        .setLastActive(0L).build();
    Stat stat = mock(Stat.class);
    MetaStoreCallback<ManagedCursorInfo> callback = (MetaStoreCallback<ManagedCursorInfo>) invocation
        .getArguments()[2];
    callback.operationComplete(info, stat);
    return null;
  }
}).when(mockMetaStore).asyncGetCursorInfo(eq(mlName), eq(cursorName), any(MetaStoreCallback.class));

  public void operationComplete(Void result, Stat version) {
    // Update again using the version
    zkc.failNow(Code.CONNECTIONLOSS);
    ManagedCursorInfo info = ManagedCursorInfo.newBuilder().setCursorsLedgerId(2).build();
    store.asyncUpdateCursorInfo("my_test", "c1", info, version, new MetaStoreCallback<Void>() {
      public void operationFailed(MetaStoreException e) {
        // ok
        latch.countDown();
      }
      @Override
      public void operationComplete(Void result, Stat version) {
        fail("should have failed");
      }
    });
  }
});

private void persistPositionMetaStore(long cursorsLedgerId, PositionImpl position, Map<String, Long> properties,
    MetaStoreCallback<Void> callback, boolean persistIndividualDeletedMessageRanges) {
  // When closing we store the last mark-delete position in the z-node itself, so we won't need the cursor ledger,
  // hence we write it as -1. The cursor ledger is deleted once the z-node write is confirmed.
  ManagedCursorInfo.Builder info = ManagedCursorInfo.newBuilder() //
      .setCursorsLedgerId(cursorsLedgerId) //
      .setMarkDeleteLedgerId(position.getLedgerId()) //
      .setMarkDeleteEntryId(position.getEntryId()) //
      .setLastActive(lastActive); //
  info.addAllProperties(buildPropertiesMap(properties));
  if (persistIndividualDeletedMessageRanges) {
    info.addAllIndividualDeletedMessages(buildIndividualDeletedMessageRanges());
  }
  if (log.isDebugEnabled()) {
    log.debug("[{}][{}]  Closing cursor at md-position: {}", ledger.getName(), name, position);
  }
  ledger.getStore().asyncUpdateCursorInfo(ledger.getName(), name, info.build(), cursorLedgerStat,
      new MetaStoreCallback<Void>() {
        @Override
        public void operationComplete(Void result, Stat stat) {
          cursorLedgerStat = stat;
          callback.operationComplete(result, stat);
        }
        @Override
        public void operationFailed(MetaStoreException e) {
          callback.operationFailed(e);
        }
      });
}

private ManagedCursorInfo parseManagedCursorInfoFromText(byte[] data) throws ParseException {
  ManagedCursorInfo.Builder builder = ManagedCursorInfo.newBuilder();
  TextFormat.merge(new String(data, Encoding), builder);
  return builder.build();
}

private ManagedCursorInfo parseManagedCursorInfo(byte[] data)
    throws ParseException, InvalidProtocolBufferException {
  // First try binary format, then fallback to text
  try {
    return ManagedCursorInfo.parseFrom(data);
  } catch (InvalidProtocolBufferException e) {
    // Fallback to parsing protobuf text format
    ManagedCursorInfo.Builder builder = ManagedCursorInfo.newBuilder();
    TextFormat.merge(new String(data, Encoding), builder);
    return builder.build();
  }
}

private ManagedCursorInfo parseManagedCursorInfoFromBinary(byte[] data) throws InvalidProtocolBufferException {
  return ManagedCursorInfo.newBuilder().mergeFrom(data).build();
}

private void persistPositionMetaStore(long cursorsLedgerId, PositionImpl position,
    MetaStoreCallback<Void> callback) {
  // When closing we store the last mark-delete position in the z-node itself, so we won't need the cursor ledger,
  // hence we write it as -1. The cursor ledger is deleted once the z-node write is confirmed.
  ManagedCursorInfo.Builder info = ManagedCursorInfo.newBuilder() //
      .setCursorsLedgerId(cursorsLedgerId) //
      .setMarkDeleteLedgerId(position.getLedgerId()) //
      .setMarkDeleteEntryId(position.getEntryId()); //
  if (protobufFormat == ZNodeProtobufFormat.Binary) {
    info.addAllIndividualDeletedMessages(buildIndividualDeletedMessageRanges());
  }
  if (log.isDebugEnabled()) {
    log.debug("[{}][{}]  Closing cursor at md-position: {}", ledger.getName(), name, markDeletePosition);
  }
  ledger.getStore().asyncUpdateCursorInfo(ledger.getName(), name, info.build(), cursorLedgerStat,
      new MetaStoreCallback<Void>() {
        @Override
        public void operationComplete(Void result, Stat stat) {
          callback.operationComplete(result, stat);
        }
        @Override
        public void operationFailed(MetaStoreException e) {
          callback.operationFailed(e);
        }
      });
}

private void persistPositionMetaStore(long cursorsLedgerId, PositionImpl position, Map<String, Long> properties,
    MetaStoreCallback<Void> callback, boolean persistIndividualDeletedMessageRanges) {
  // When closing we store the last mark-delete position in the z-node itself, so we won't need the cursor ledger,
  // hence we write it as -1. The cursor ledger is deleted once the z-node write is confirmed.
  ManagedCursorInfo.Builder info = ManagedCursorInfo.newBuilder() //
      .setCursorsLedgerId(cursorsLedgerId) //
      .setMarkDeleteLedgerId(position.getLedgerId()) //
      .setMarkDeleteEntryId(position.getEntryId()) //
      .setLastActive(lastActive); //
  info.addAllProperties(buildPropertiesMap(properties));
  if (persistIndividualDeletedMessageRanges) {
    info.addAllIndividualDeletedMessages(buildIndividualDeletedMessageRanges());
  }
  if (log.isDebugEnabled()) {
    log.debug("[{}][{}]  Closing cursor at md-position: {}", ledger.getName(), name, position);
  }
  ledger.getStore().asyncUpdateCursorInfo(ledger.getName(), name, info.build(), cursorLedgerStat,
      new MetaStoreCallback<Void>() {
        @Override
        public void operationComplete(Void result, Stat stat) {
          cursorLedgerStat = stat;
          callback.operationComplete(result, stat);
        }
        @Override
        public void operationFailed(MetaStoreException e) {
          callback.operationFailed(e);
        }
      });
}