Package backtype.storm.transactional.state

Examples of backtype.storm.transactional.state.RotatingTransactionalState


    }
   
    @Override
    public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) {
        _state = TransactionalState.newCoordinatorState(conf, (String) conf.get(Config.TOPOLOGY_TRANSACTIONAL_ID), _spout.getComponentConfiguration());
        _coordinatorState = new RotatingTransactionalState(_state, META_DIR, true);
        _collector = collector;
        _coordinator = _spout.getCoordinator(conf, context);
        _currTransaction = getStoredCurrTransaction(_state);
        Object active = conf.get(Config.TOPOLOGY_MAX_SPOUT_PENDING);
        if(active==null) {
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        @Override
        public void emitBatch(final TransactionAttempt tx, final Integer partitions,
                final BatchOutputCollector collector) {
            for(int i=_index; i < partitions; i+=_numTasks) {
                if(!_partitionStates.containsKey(i)) {
                    _partitionStates.put(i, new RotatingTransactionalState(_state, "" + i));
                }
                RotatingTransactionalState state = _partitionStates.get(i);
                final int partition = i;
                Object meta = state.getStateOrCreate(tx.getTransactionId(),
                        new RotatingTransactionalState.StateInitializer() {
                    @Override
                    public Object init(BigInteger txid, Object lastState) {
                        return _emitter.emitPartitionBatchNew(tx, collector, partition, lastState);
                    }
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            _state = TransactionalState.newUserState(conf, (String) conf.get(Config.TOPOLOGY_TRANSACTIONAL_ID), getComponentConfiguration());
            List<String> existingPartitions = _state.list("");
            for(String p: existingPartitions) {
                int partition = Integer.parseInt(p);
                if((partition - _index) % _numTasks == 0) {
                    _partitionStates.put(partition, new RotatingTransactionalState(_state, p));
                }
            }
        }
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        public void emitBatch(TransactionAttempt tx, Object coordinatorMeta, BatchOutputCollector collector) {
            Map<Integer, Object> metas = new HashMap<Integer, Object>();
            _cachedMetas.put(tx.getTransactionId(), metas);
            int partitions = _emitter.numPartitions();
            for(int i=_index; i < partitions; i+=_numTasks) {
                RotatingTransactionalState state = _partitionStates.get(i);
                if(state==null) {
                    state = new RotatingTransactionalState(_state, "" + i);
                    _partitionStates.put(i, state);
                }
                state.removeState(tx.getTransactionId());
                Object meta = _emitter.emitPartitionBatch(tx, collector, i, state.getLastState());
                metas.put(i, meta);
            }
        }
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    @Override
    public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) {
        _rand = new Random(Utils.secureRandomLong());
        _state = TransactionalState.newCoordinatorState(conf, (String) conf.get(Config.TOPOLOGY_TRANSACTIONAL_ID), _spout.getComponentConfiguration());
        _coordinatorState = new RotatingTransactionalState(_state, META_DIR, true);
        _collector = collector;
        _coordinator = _spout.getCoordinator(conf, context);
        _currTransaction = getStoredCurrTransaction(_state);
        Object active = conf.get(Config.TOPOLOGY_MAX_SPOUT_PENDING);
        if(active==null) {
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        @Override
        public void emitBatch(final TransactionAttempt tx, final Integer partitions,
                final BatchOutputCollector collector) {
            for(int i=_index; i < partitions; i+=_numTasks) {
                if(!_partitionStates.containsKey(i)) {
                    _partitionStates.put(i, new RotatingTransactionalState(_state, "" + i));
                }
                RotatingTransactionalState state = _partitionStates.get(i);
                final int partition = i;
                Object meta = state.getStateOrCreate(tx.getTransactionId(),
                        new RotatingTransactionalState.StateInitializer() {
                    @Override
                    public Object init(BigInteger txid, Object lastState) {
                        return _emitter.emitPartitionBatchNew(tx, collector, partition, lastState);
                    }
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            _state = TransactionalState.newUserState(conf, (String) conf.get(Config.TOPOLOGY_TRANSACTIONAL_ID), getComponentConfiguration());
            List<String> existingPartitions = _state.list("");
            for(String p: existingPartitions) {
                int partition = Integer.parseInt(p);
                if((partition - _index) % _numTasks == 0) {
                    _partitionStates.put(partition, new RotatingTransactionalState(_state, p));
                }
            }
        }
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            } else {
                prevCached = new HashMap<Integer, Object>();
            }
           
            for(int i=_index; i < partitions; i+=_numTasks) {
                RotatingTransactionalState state = _partitionStates.get(i);
                if(state==null) {
                    state = new RotatingTransactionalState(_state, "" + i);
                    _partitionStates.put(i, state);
                }
                state.removeState(tx.getTransactionId());
                Object lastMeta = prevCached.get(i);
                if(lastMeta==null) lastMeta = state.getLastState();
                Object meta = _emitter.emitPartitionBatch(tx, collector, i, lastMeta);
                metas.put(i, meta);
            }
        }
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      SpoutOutputCollector collector) {
    _rand = new Random(Utils.secureRandomLong());
    _state = TransactionalState.newCoordinatorState(conf,
        (String) conf.get(Config.TOPOLOGY_TRANSACTIONAL_ID),
        _spout.getComponentConfiguration());
    _coordinatorState = new RotatingTransactionalState(_state, META_DIR,
        true);
    _collector = collector;
    _coordinator = _spout.getCoordinator(conf, context);
    _currTransaction = getStoredCurrTransaction(_state);
    Object active = conf.get(Config.TOPOLOGY_MAX_SPOUT_PENDING);
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    @Override
    public void emitBatch(final TransactionAttempt tx,
        final Integer partitions, final BatchOutputCollector collector) {
      for (int i = _index; i < partitions; i += _numTasks) {
        if (!_partitionStates.containsKey(i)) {
          _partitionStates.put(i, new RotatingTransactionalState(
              _state, "" + i));
        }
        RotatingTransactionalState state = _partitionStates.get(i);
        final int partition = i;
        Object meta = state.getStateOrCreate(tx.getTransactionId(),
            new RotatingTransactionalState.StateInitializer() {
              @Override
              public Object init(BigInteger txid, Object lastState) {
                return _emitter.emitPartitionBatchNew(tx,
                    collector, partition, lastState);
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Related Classes of backtype.storm.transactional.state.RotatingTransactionalState

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