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[u/mrichter/AliRoot.git] / STEER / AliCDBManager.h

#ifndef ALI_CDB_MANAGER_H
#define ALI_CDB_MANAGER_H

/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/////////////////////////////////////////////////////////////////////
//                                                                 //
//  class AliCDBManager                                            //
//                                                                 //
/////////////////////////////////////////////////////////////////////

#include <TObject.h>
#include <TList.h>
#include <TMap.h>

class AliCDBEntry;
class AliCDBId;
class AliCDBPath;
class AliCDBRunRange;
class AliCDBMetaData;
class AliCDBStorage;
class AliCDBStorageFactory;
class AliCDBParam;

class AliCDBManager: public TObject {

 public:

	void RegisterFactory(AliCDBStorageFactory* factory);

	Bool_t HasStorage(const char* dbString) const;

	AliCDBParam* CreateParameter(const char* dbString) const;

	AliCDBStorage* GetStorage(const char* dbString);
	AliCDBStorage* GetStorage(const AliCDBParam* param);
	
	TList* GetActiveStorages();

	void SetDefaultStorage(const char* dbString);
	void SetDefaultStorage(const AliCDBParam* param);
	void SetDefaultStorage(AliCDBStorage *storage);
	
	Bool_t IsDefaultStorageSet() const {return fDefaultStorage != 0;}
	AliCDBStorage* GetDefaultStorage() const {return fDefaultStorage;}
	void UnsetDefaultStorage() {fDefaultStorage = 0x0;}
	
	void SetSpecificStorage(const char* calibType, const char* dbString);
	void SetSpecificStorage(const char* calibType, AliCDBParam* param);

	AliCDBStorage* GetSpecificStorage(const char* calibType);

	void SetDrain(const char* dbString);
	void SetDrain(const AliCDBParam* param);
	void SetDrain(AliCDBStorage *storage);

	Bool_t IsDrainSet() const {return fDrainStorage != 0;}

	Bool_t Drain(AliCDBEntry* entry);

	void UnsetDrain(){fDrainStorage = 0x0;}

	AliCDBEntry* Get(const AliCDBId& query);
	AliCDBEntry* Get(const AliCDBPath& path, Int_t runNumber=-1, 
				Int_t version = -1, Int_t subVersion = -1);
	AliCDBEntry* Get(const AliCDBPath& path, const AliCDBRunRange& runRange,
				 Int_t version = -1, Int_t subVersion = -1);

	TList* GetAll(const AliCDBId& query);
	TList* GetAll(const AliCDBPath& path, Int_t runNumber=-1, 
				Int_t version = -1, Int_t subVersion = -1);
	TList* GetAll(const AliCDBPath& path, const AliCDBRunRange& runRange,
				 Int_t version = -1, Int_t subVersion = -1); 

	Bool_t Put(TObject* object, AliCDBId& id,  AliCDBMetaData* metaData);
	Bool_t Put(AliCDBEntry* entry);
		
	void SetCacheFlag(Bool_t cacheFlag) {fCache=cacheFlag;}
	Bool_t GetCacheFlag() const {return fCache;}

	void SetRun(Long64_t run);
	Long64_t GetRun() const {return fRun;}

	// AliCDBEntry* Get(const char* path);

	void DestroyActiveStorages();
	void DestroyActiveStorage(AliCDBStorage* storage);
	
	static void Destroy();
	~AliCDBManager();

	static AliCDBManager* Instance(); 

 private:
		
	AliCDBManager();
	static AliCDBManager* fgInstance; // AliCDBManager instance
	
	AliCDBStorage* GetActiveStorage(const AliCDBParam* param);
	void PutActiveStorage(AliCDBParam* param, AliCDBStorage* storage);
	
  	void ClearCache();
  	void CacheEntry(const char* path, AliCDBEntry* entry);
	
	AliCDBParam* SelectSpecificStorage(const TString& path);
	

	void Init();
	
	TList fFactories; 		//! list of registered storage factories
	TMap fActiveStorages;		//! list of active storages
	TMap fSpecificStorages;         //! list of detector-specific storages

	AliCDBStorage *fDefaultStorage;	//! pointer to default storage
	AliCDBStorage *fDrainStorage;	//! pointer to drain storage

  	TMap fEntryCache;    	//! cache of the retrieved objects

	Bool_t fCache;			//! The cache flag
  	Long64_t fRun;			//! The run number

	ClassDef(AliCDBManager, 0);
};


/////////////////////////////////////////////////////////////////////
//                                                                 //
//  class AliCDBStorageFactory                                     //
//                                                                 //
/////////////////////////////////////////////////////////////////////

class AliCDBParam;
class AliCDBStorageFactory: public TObject {
	friend class AliCDBManager;
	
public:
	virtual ~AliCDBStorageFactory(){}
	virtual Bool_t Validate(const char* dbString) = 0;
	virtual AliCDBParam* CreateParameter(const char* dbString) = 0;	

protected:
	virtual AliCDBStorage* Create(const AliCDBParam* param) = 0;

	ClassDef(AliCDBStorageFactory, 0);
};

/////////////////////////////////////////////////////////////////////
//                                                                 //
//  class AliCDBParam                                              //
//                                                                 //
/////////////////////////////////////////////////////////////////////

class AliCDBParam: public TObject {

public:

	AliCDBParam();
	virtual ~AliCDBParam();

	const TString& GetType() const {return fType;};
	const TString& GetURI() const {return fURI;};

	virtual AliCDBParam* CloneParam() const = 0;

protected:

	void SetType(const char* type) {fType = type;};
	void SetURI(const char* uri) {fURI = uri;};

private:

	TString fType; // CDB type
	TString fURI;  // CDB URI

	ClassDef(AliCDBParam, 0);
};

#endif