Examples of stream.io.Sink

stream.io.Sink

          .compileEPL(epStatement);
      final EPStatement stmt = epAdmin.create(stmtModel);
      final String stmtName = Integer.toString(epStatement.hashCode());
      // TODO fast hack disabling queues, since they are currently not
      // supported by Streams-Storm.
      final Sink sink = _sinksMap.get(_statementSinksMap.get(stmtName));
      final String[] propertyNames = stmt.getEventType()
          .getPropertyNames();
      if (sink != null) {
        final EsperStatementSubscriber subscriber = new EsperStatementSubscriber(
            sink, propertyNames);

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      // If an output sink was defined, then we add a subscriber.
      if (epStatement.getOutput() != null) {
        final String[] sinkNamesList = epStatement.getOutput();
        final List<Sink> sinksList = new ArrayList<Sink>();
        for (String sinkName : sinkNamesList) {
          final Sink sink = _sinksMap.get(sinkName);


          if (sink == null) {
            _log.warn(
                "Statement {} declares the sink {} "
                    + "but the corresponding Esper processor does not.",

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          .create(stmtModel) : epAdmin.create(stmtModel, stmtName));


      // If an output sink was defined, then we add a subscriber.
      if (epStatement.getOutput() != null) {
        final String sinkName = epStatement.getOutput();
        final Sink sink = _sinksMap.get(sinkName);
        final String[] propertyNames = stmt.getEventType()
            .getPropertyNames();


        if (sink == null) {
          _log.warn(
              "Statement {} declares the sink {} "
                  + "but the corresponding Esper processor does not.",
              epStatement, sinkName);
        } else {
          final EsperStatementSubscriber subscriber = new EsperStatementSubscriber(
              sink, propertyNames);
          _log.info("Adding subscriber {} to statement {}", sink.getId(),
              epStatement);
          stmt.setSubscriber(subscriber);
        }
      }
    }

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      // Compute the hash value of the statement.
      // We use this to reference the statement's sink, if it declares
      // any.
      final String stmtName = Integer.toString(epStatement.hashCode());


      final Sink sink = _sinksMap.get(_statementSinksMap.get(stmtName));
      final String[] propertyNames = stmt.getEventType()
          .getPropertyNames();


      // Only add a subscriber, if the statement delcares to send its
      // output to a queue.

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Related Classes of stream.io.Sink

ch.uzh.ifi.ddis.ifp.streams.EsperProcessor

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