JobInformationStorage.h

// -*- indent-tabs-mode: nil -*-

#ifndef __ARC_JOBINFORMATIONSTORAGE_H__
#define __ARC_JOBINFORMATIONSTORAGE_H__

#include <string>
#include <set>

#include <arc/compute/Job.h>

namespace Arc {
  
  class JobInformationStorage;
  
  typedef struct {
    const char *name;
    JobInformationStorage* (*instance)(const std::string&);
  } JobInformationStorageDescriptor;


  class JobInformationStorage {
  public:

    JobInformationStorage(const std::string& name, unsigned nTries = 10, unsigned tryInterval = 500000)
      : name(name), nTries(nTries), tryInterval(tryInterval), isValid(false) {}
    virtual ~JobInformationStorage() {}
    

    bool IsValid() const { return isValid; }
    

    bool IsStorageExisting() const { return isStorageExisting; }


    virtual bool ReadAll(std::list<Job>& jobs, const std::list<std::string>& rejectEndpoints = std::list<std::string>()) = 0;
    

    virtual bool Read(std::list<Job>& jobs, std::list<std::string>& jobIdentifiers,
                      const std::list<std::string>& endpoints = std::list<std::string>(),
                      const std::list<std::string>& rejectEndpoints = std::list<std::string>()) = 0;


    virtual bool Write(const std::list<Job>& jobs)  { std::list<const Job*> newJobs; std::set<std::string> prunedServices; return Write(jobs, prunedServices, newJobs); }


    virtual bool Write(const std::list<Job>& jobs, const std::set<std::string>& prunedServices, std::list<const Job*>& newJobs) = 0;


    virtual bool Clean() = 0;


    virtual bool Remove(const std::list<std::string>& jobids) = 0;
    

    const std::string& GetName() const { return name; }
    
    static JobInformationStorageDescriptor AVAILABLE_TYPES[];

  protected:
    const std::string name;
    unsigned nTries;
    unsigned tryInterval;
    bool isValid;
    bool isStorageExisting;
  };

} // namespace Arc

#endif // __ARC_JOBINFORMATIONSTORAGE_H__