PhysicalOptimizer.h

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 *  Copyright 2018 Rice University                                           *
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#ifndef PDB_PHYSICAL_OPTIMIZER_H
#define PDB_PHYSICAL_OPTIMIZER_H

#include <set>
#include "AggregationJobStage.h"
#include "AtomicComputationList.h"
#include "BroadcastJoinBuildHTJobStage.h"
#include "Computation.h"
#include "ComputePlan.h"
#include "Configuration.h"
#include "HashPartitionedJoinBuildHTJobStage.h"
#include "LogicalPlan.h"
#include "PDBLogger.h"
#include "Statistics.h"
#include "TupleSetJobStage.h"
#include "AbstractPhysicalNodeFactory.h"

namespace pdb {

class PhysicalOptimizer {
 public:

  PhysicalOptimizer(std::vector<AbstractPhysicalNodePtr> &sources, PDBLoggerPtr &logger);

  ~PhysicalOptimizer();

  bool getNextStagesOptimized(std::vector<pdb::Handle<AbstractJobStage>> &physicalPlanToOutput,
                              std::vector<pdb::Handle<SetIdentifier>> &interGlobalSets,
                              StatisticsPtr &stats,
                              int &jobStageId);

  bool hasSources();

  bool hasConsumers(Handle<SetIdentifier> &set);


  AbstractPhysicalNodePtr getBestNode(StatisticsPtr &ptr);

 private:

  static constexpr double SOURCE_PENALIZE_FACTOR = 1000.00;

  std::map<std::string, AbstractPhysicalNodePtr> sourceNodes;

  std::set<std::string> penalizedSets;

  PDBLoggerPtr logger;

};

}


#endif //PDB_PHYSICAL_OPTIMIZER_H