fixing log message when pp want to skip dcs value retrieval

[u/mrichter/AliRoot.git] / SHUTTLE / AliShuttle.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/*
$Log$
Revision 1.40  2007/04/27 07:06:48  jgrosseo
GetFileSources returns empty list in case of no files, but successful query
No mails sent in testmode

Revision 1.39  2007/04/17 12:43:57  acolla
Correction in StoreOCDB; change of text in mail to detector expert

Revision 1.38  2007/04/12 08:26:18  jgrosseo
updated comment

Revision 1.37  2007/04/10 16:53:14  jgrosseo
redirecting sub detector stdout, stderr to sub detector log file

Revision 1.35  2007/04/04 16:26:38  acolla
1. Re-organization of function calls in TestPreprocessor to make it more meaningful.
2. Added missing dependency in test preprocessors.
3. in AliShuttle.cxx: processing time and memory consumption info on a single line.

Revision 1.34  2007/04/04 10:33:36  jgrosseo
1) Storing of files to the Grid is now done _after_ your preprocessors succeeded. This is transparent, which means that you can still use the same functions (Store, StoreReferenceData) to store files to the Grid. However, the Shuttle first stores them locally and transfers them after the preprocessor finished. The return code of these two functions has changed from UInt_t to Bool_t which gives you the success of the storing.
In case of an error with the Grid, the Shuttle will retry the storing later, the preprocessor does not need to be run again.

2) The meaning of the return code of the preprocessor has changed. 0 is now success and any other value means failure. This value is stored in the log and you can use it to keep details about the error condition.

3) New function StoreReferenceFile to _directly_ store a file (without opening it) to the reference storage.

4) The memory usage of the preprocessor is monitored. If it exceeds 2 GB it is terminated.

5) New function AliPreprocessor::ProcessDCS(). If you do not need to have DCS data in all cases, you can skip the processing by implemting this function and returning kFALSE under certain conditions. E.g. if there is a certain run type.
If you always need DCS data (like before), you do not need to implement it.

6) The run type has been added to the monitoring page

Revision 1.33  2007/04/03 13:56:01  acolla
Grid Storage at the end of preprocessing. Added virtual method to disable DCS query according to the
run type.

Revision 1.32  2007/02/28 10:41:56  acolla
Run type field added in SHUTTLE framework. Run type is read from "run type" logbook and retrieved by
AliPreprocessor::GetRunType() function.
Added some ldap definition files.

Revision 1.30  2007/02/13 11:23:21  acolla
Moved getters and setters of Shuttle's main OCDB/Reference, local
OCDB/Reference, temp and log folders to AliShuttleInterface

Revision 1.27  2007/01/30 17:52:42  jgrosseo
adding monalisa monitoring

Revision 1.26  2007/01/23 19:20:03  acolla
Removed old ldif files, added TOF, MCH ldif files. Added some options in
AliShuttleConfig::Print. Added in Ali Shuttle: SetShuttleTempDir and
SetShuttleLogDir

Revision 1.25  2007/01/15 19:13:52  acolla
Moved some AliInfo to AliDebug in SendMail function

Revision 1.21  2006/12/07 08:51:26  jgrosseo
update (alberto):
table, db names in ldap configuration
added GRP preprocessor
DCS data can also be retrieved by data point

Revision 1.20  2006/11/16 16:16:48  jgrosseo
introducing strict run ordering flag
removed giving preprocessor name to preprocessor, they have to know their name themselves ;-)

Revision 1.19  2006/11/06 14:23:04  jgrosseo
major update (Alberto)
o) reading of run parameters from the logbook
o) online offline naming conversion
o) standalone DCSclient package

Revision 1.18  2006/10/20 15:22:59  jgrosseo
o) Adding time out to the execution of the preprocessors: The Shuttle forks and the parent process monitors the child
o) Merging Collect, CollectAll, CollectNew function
o) Removing implementation of empty copy constructors (declaration still there!)

Revision 1.17  2006/10/05 16:20:55  jgrosseo
adapting to new CDB classes

Revision 1.16  2006/10/05 15:46:26  jgrosseo
applying to the new interface

Revision 1.15  2006/10/02 16:38:39  jgrosseo
update (alberto):
fixed memory leaks
storing of objects that failed to be stored to the grid before
interfacing of shuttle status table in daq system

Revision 1.14  2006/08/29 09:16:05  jgrosseo
small update

Revision 1.13  2006/08/15 10:50:00  jgrosseo
effc++ corrections (alberto)

Revision 1.12  2006/08/08 14:19:29  jgrosseo
Update to shuttle classes (Alberto)

- Possibility to set the full object's path in the Preprocessor's and
Shuttle's  Store functions
- Possibility to extend the object's run validity in the same classes
("startValidity" and "validityInfinite" parameters)
- Implementation of the StoreReferenceData function to store reference
data in a dedicated CDB storage.

Revision 1.11  2006/07/21 07:37:20  jgrosseo
last run is stored after each run

Revision 1.10  2006/07/20 09:54:40  jgrosseo
introducing status management: The processing per subdetector is divided into several steps,
after each step the status is stored on disk. If the system crashes in any of the steps the Shuttle
can keep track of the number of failures and skips further processing after a certain threshold is
exceeded. These thresholds can be configured in LDAP.

Revision 1.9  2006/07/19 10:09:55  jgrosseo
new configuration, accesst to DAQ FES (Alberto)

Revision 1.8  2006/07/11 12:44:36  jgrosseo
adding parameters for extended validity range of data produced by preprocessor

Revision 1.7  2006/07/10 14:37:09  jgrosseo
small fix + todo comment

Revision 1.6  2006/07/10 13:01:41  jgrosseo
enhanced storing of last sucessfully processed run (alberto)

Revision 1.5  2006/07/04 14:59:57  jgrosseo
revision of AliDCSValue: Removed wrapper classes, reduced storage size per value by factor 2

Revision 1.4  2006/06/12 09:11:16  jgrosseo
coding conventions (Alberto)

Revision 1.3  2006/06/06 14:26:40  jgrosseo
o) removed files that were moved to STEER
o) shuttle updated to follow the new interface (Alberto)

Revision 1.2  2006/03/07 07:52:34  hristov
New version (B.Yordanov)

Revision 1.6  2005/11/19 17:19:14  byordano
RetrieveDATEEntries and RetrieveConditionsData added

Revision 1.5  2005/11/19 11:09:27  byordano
AliShuttle declaration added

Revision 1.4  2005/11/17 17:47:34  byordano
TList changed to TObjArray

Revision 1.3  2005/11/17 14:43:23  byordano
import to local CVS

Revision 1.1.1.1  2005/10/28 07:33:58  hristov
Initial import as subdirectory in AliRoot

Revision 1.2  2005/09/13 08:41:15  byordano
default startTime endTime added

Revision 1.4  2005/08/30 09:13:02  byordano
some docs added

Revision 1.3  2005/08/29 21:15:47  byordano
some docs added

*/

//
// This class is the main manager for AliShuttle. 
// It organizes the data retrieval from DCS and call the 
// interface methods of AliPreprocessor.
// For every detector in AliShuttleConfgi (see AliShuttleConfig),
// data for its set of aliases is retrieved. If there is registered
// AliPreprocessor for this detector then it will be used
// accroding to the schema (see AliPreprocessor).
// If there isn't registered AliPreprocessor than the retrieved
// data is stored automatically to the undelying AliCDBStorage.
// For detSpec is used the alias name.
//

#include "AliShuttle.h"

#include "AliCDBManager.h"
#include "AliCDBStorage.h"
#include "AliCDBId.h"
#include "AliCDBRunRange.h"
#include "AliCDBPath.h"
#include "AliCDBEntry.h"
#include "AliShuttleConfig.h"
#include "DCSClient/AliDCSClient.h"
#include "AliLog.h"
#include "AliPreprocessor.h"
#include "AliShuttleStatus.h"
#include "AliShuttleLogbookEntry.h"

#include <TSystem.h>
#include <TObject.h>
#include <TString.h>
#include <TTimeStamp.h>
#include <TObjString.h>
#include <TSQLServer.h>
#include <TSQLResult.h>
#include <TSQLRow.h>
#include <TMutex.h>
#include <TSystemDirectory.h>
#include <TSystemFile.h>
#include <TFileMerger.h>
#include <TGrid.h>
#include <TGridResult.h>

#include <TMonaLisaWriter.h>

#include <fstream>

#include <sys/types.h>
#include <sys/wait.h>

ClassImp(AliShuttle)

//______________________________________________________________________________________________
AliShuttle::AliShuttle(const AliShuttleConfig* config,
		UInt_t timeout, Int_t retries):
fConfig(config),
fTimeout(timeout), fRetries(retries),
fPreprocessorMap(),
fLogbookEntry(0),
fCurrentDetector(),
fStatusEntry(0),
fMonitoringMutex(0),
fLastActionTime(0),
fLastAction(),
fMonaLisa(0),
fTestMode(kNone),
fReadTestMode(kFALSE),
fOutputRedirected(kFALSE)
{
	//
	// config: AliShuttleConfig used
	// timeout: timeout used for AliDCSClient connection
	// retries: the number of retries in case of connection error.
	//

	if (!fConfig->IsValid()) AliFatal("********** !!!!! Invalid configuration !!!!! **********");
	for(int iSys=0;iSys<4;iSys++) {
		fServer[iSys]=0;
		if (iSys < 3)
			fFXSlist[iSys].SetOwner(kTRUE);
	}
	fPreprocessorMap.SetOwner(kTRUE);

	for (UInt_t iDet=0; iDet<NDetectors(); iDet++)
		fFirstUnprocessed[iDet] = kFALSE;

	fMonitoringMutex = new TMutex();
}

//______________________________________________________________________________________________
AliShuttle::~AliShuttle()
{
	//
	// destructor
	//

	fPreprocessorMap.DeleteAll();
	for(int iSys=0;iSys<4;iSys++)
		if(fServer[iSys]) {
			fServer[iSys]->Close();
			delete fServer[iSys];
		        fServer[iSys] = 0;
		}

	if (fStatusEntry){
		delete fStatusEntry;
		fStatusEntry = 0;
	}
	
	if (fMonitoringMutex) 
	{
		delete fMonitoringMutex;
		fMonitoringMutex = 0;
	}
}

//______________________________________________________________________________________________
void AliShuttle::RegisterPreprocessor(AliPreprocessor* preprocessor)
{
	//
	// Registers new AliPreprocessor.
	// It uses GetName() for indentificator of the pre processor.
	// The pre processor is registered it there isn't any other
	// with the same identificator (GetName()).
	//

	const char* detName = preprocessor->GetName();
	if(GetDetPos(detName) < 0)
		AliFatal(Form("********** !!!!! Invalid detector name: %s !!!!! **********", detName));

	if (fPreprocessorMap.GetValue(detName)) {
		AliWarning(Form("AliPreprocessor %s is already registered!", detName));
		return;
	}

	fPreprocessorMap.Add(new TObjString(detName), preprocessor);
}
//______________________________________________________________________________________________
Bool_t AliShuttle::Store(const AliCDBPath& path, TObject* object,
		AliCDBMetaData* metaData, Int_t validityStart, Bool_t validityInfinite)
{
	// Stores a CDB object in the storage for offline reconstruction. Objects that are not needed for
	// offline reconstruction, but should be stored anyway (e.g. for debugging) should NOT be stored
	// using this function. Use StoreReferenceData instead!
	// It calls StoreLocally function which temporarily stores the data locally; when the preprocessor
	// finishes the data are transferred to the main storage (Grid).

	return StoreLocally(fgkLocalCDB, path, object, metaData, validityStart, validityInfinite);
}

//______________________________________________________________________________________________
Bool_t AliShuttle::StoreReferenceData(const AliCDBPath& path, TObject* object, AliCDBMetaData* metaData)
{
	// Stores a CDB object in the storage for reference data. This objects will not be available during
	// offline reconstrunction. Use this function for reference data only!
	// It calls StoreLocally function which temporarily stores the data locally; when the preprocessor
	// finishes the data are transferred to the main storage (Grid).

	return StoreLocally(fgkLocalRefStorage, path, object, metaData);
}

//______________________________________________________________________________________________
Bool_t AliShuttle::StoreLocally(const TString& localUri,
			const AliCDBPath& path, TObject* object, AliCDBMetaData* metaData,
			Int_t validityStart, Bool_t validityInfinite)
{
	// Store object temporarily in local storage. Parameters are passed by Store and StoreReferenceData functions.
	// when the preprocessor finishes the data are transferred to the main storage (Grid).
	// The parameters are:
	//   1) Uri of the backup storage (Local)
	//   2) the object's path.
	//   3) the object to be stored
	//   4) the metaData to be associated with the object
	//   5) the validity start run number w.r.t. the current run,
	//      if the data is valid only for this run leave the default 0
	//   6) specifies if the calibration data is valid for infinity (this means until updated),
	//      typical for calibration runs, the default is kFALSE
	//
	// returns 0 if fail, 1 otherwise

	if (fTestMode & kErrorStorage)
	{
		Log(fCurrentDetector, "StoreLocally - In TESTMODE - Simulating error while storing locally");
		return kFALSE;
	}
	
	const char* cdbType = (localUri == fgkLocalCDB) ? "CDB" : "Reference";

	Int_t firstRun = GetCurrentRun() - validityStart;
  	if(firstRun < 0) {
		AliWarning("First valid run happens to be less than 0! Setting it to 0.");
		firstRun=0;
  	}

	Int_t lastRun = -1;
	if(validityInfinite) {
		lastRun = AliCDBRunRange::Infinity();
	} else {
		lastRun = GetCurrentRun();
	}

	// Version is set to current run, it will be used later to transfer data to Grid
	AliCDBId id(path, firstRun, lastRun, GetCurrentRun(), -1);

	if(! dynamic_cast<TObjString*> (metaData->GetProperty("RunUsed(TObjString)"))){
		TObjString runUsed = Form("%d", GetCurrentRun());
		metaData->SetProperty("RunUsed(TObjString)", runUsed.Clone());
	}

	Bool_t result = kFALSE;

	if (!(AliCDBManager::Instance()->GetStorage(localUri))) {
		Log("SHUTTLE", Form("StoreLocally - Cannot activate local %s storage", cdbType));
	} else {
		result = AliCDBManager::Instance()->GetStorage(localUri)
					->Put(object, id, metaData);
	}

	if(!result) {

		Log(fCurrentDetector, Form("StoreLocally - Can't store object <%s>!", id.ToString().Data()));
	}

	return result;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::StoreOCDB()
{
	//
	// Called when preprocessor ends successfully or when previous storage attempt failed (kStoreError status)
	// Calls underlying StoreOCDB(const char*) function twice, for OCDB and Reference storage.
	// Then calls StoreRefFilesToGrid to store reference files. 
	//
	
	if (fTestMode & kErrorGrid)
	{
		Log("SHUTTLE", "StoreOCDB - In TESTMODE - Simulating error while storing in the Grid");
		Log(fCurrentDetector, "StoreOCDB - In TESTMODE - Simulating error while storing in the Grid");
		return kFALSE;
	}
	
	AliInfo("Storing OCDB data ...");
	Bool_t resultCDB = StoreOCDB(fgkMainCDB);

	AliInfo("Storing reference data ...");
	Bool_t resultRef = StoreOCDB(fgkMainRefStorage);
	
	AliInfo("Storing reference files ...");
	Bool_t resultRefFiles = StoreRefFilesToGrid();
	
	return resultCDB && resultRef && resultRefFiles;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::StoreOCDB(const TString& gridURI)
{
	//
	// Called by StoreOCDB(), performs actual storage to the main OCDB and reference storages (Grid)
	//

	TObjArray* gridIds=0;

	Bool_t result = kTRUE;

	const char* type = 0;
	TString localURI;
	if(gridURI == fgkMainCDB) {
		type = "OCDB";
		localURI = fgkLocalCDB;
	} else if(gridURI == fgkMainRefStorage) {
		type = "reference";
		localURI = fgkLocalRefStorage;
	} else {
		AliError(Form("Invalid storage URI: %s", gridURI.Data()));
		return kFALSE;
	}

	AliCDBManager* man = AliCDBManager::Instance();

	AliCDBStorage *gridSto = man->GetStorage(gridURI);
	if(!gridSto) {
		Log("SHUTTLE",
			Form("StoreOCDB - cannot activate main %s storage", type));
		return kFALSE;
	}

	gridIds = gridSto->GetQueryCDBList();

	// get objects previously stored in local CDB
	AliCDBStorage *localSto = man->GetStorage(localURI);
	if(!localSto) {
		Log("SHUTTLE",
			Form("StoreOCDB - cannot activate local %s storage", type));
		return kFALSE;
	}
	AliCDBPath aPath(GetOfflineDetName(fCurrentDetector.Data()),"*","*");
	// Local objects were stored with current run as Grid version!
	TList* localEntries = localSto->GetAll(aPath.GetPath(), GetCurrentRun(), GetCurrentRun());
	localEntries->SetOwner(1);

	// loop on local stored objects
	TIter localIter(localEntries);
	AliCDBEntry *aLocEntry = 0;
	while((aLocEntry = dynamic_cast<AliCDBEntry*> (localIter.Next()))){
		aLocEntry->SetOwner(1);
		AliCDBId aLocId = aLocEntry->GetId();
		aLocEntry->SetVersion(-1);
		aLocEntry->SetSubVersion(-1);

		// If local object is valid up to infinity we store it only if it is
		// the first unprocessed run!
		if (aLocId.GetLastRun() == AliCDBRunRange::Infinity() &&
			!fFirstUnprocessed[GetDetPos(fCurrentDetector)])
		{
			Log("SHUTTLE", Form("StoreOCDB - %s: object %s has validity infinite but "
						"there are previous unprocessed runs!",
						fCurrentDetector.Data(), aLocId.GetPath().Data()));
			continue;
		}

		// loop on Grid valid Id's
		Bool_t store = kTRUE;
		TIter gridIter(gridIds);
		AliCDBId* aGridId = 0;
		while((aGridId = dynamic_cast<AliCDBId*> (gridIter.Next()))){
			if(aGridId->GetPath() != aLocId.GetPath()) continue;
			// skip all objects valid up to infinity
			if(aGridId->GetLastRun() == AliCDBRunRange::Infinity()) continue;
			// if we get here, it means there's already some more recent object stored on Grid!
			store = kFALSE;
			break;
		}

		// If we get here, the file can be stored!
		Bool_t storeOk = gridSto->Put(aLocEntry);
		if(!store || storeOk){

			if (!store)
			{
				Log(fCurrentDetector.Data(),
					Form("StoreOCDB - A more recent object already exists in %s storage: <%s>",
						type, aGridId->ToString().Data()));
			} else {
				Log("SHUTTLE",
					Form("StoreOCDB - Object <%s> successfully put into %s storage",
						aLocId.ToString().Data(), type));
			}

			// removing local filename...
			TString filename;
			localSto->IdToFilename(aLocId, filename);
			AliInfo(Form("Removing local file %s", filename.Data()));
			RemoveFile(filename.Data());
			continue;
		} else	{
			Log("SHUTTLE",
				Form("StoreOCDB - Grid %s storage of object <%s> failed",
					type, aLocId.ToString().Data()));
			result = kFALSE;
		}
	}
	localEntries->Clear();

	return result;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::StoreReferenceFile(const char* detector, const char* localFile, const char* gridFileName)
{
	//
	// Stores reference file directly (without opening it). This function stores the file locally.
	//
	// The file is stored under the following location: 
	// <base folder of local reference storage>/<DET>/<RUN#>_<gridFileName>
	// where <gridFileName> is the second parameter given to the function
	// 
	
	if (fTestMode & kErrorStorage)
	{
		Log(fCurrentDetector, "StoreReferenceFile - In TESTMODE - Simulating error while storing locally");
		return kFALSE;
	}
	
	AliCDBManager* man = AliCDBManager::Instance();
	AliCDBStorage* sto = man->GetStorage(fgkLocalRefStorage);
	
	TString localBaseFolder = sto->GetBaseFolder();
	
	TString targetDir;
	targetDir.Form("%s/%s", localBaseFolder.Data(), detector);
	
	TString target;
	target.Form("%s/%d_%s", targetDir.Data(), GetCurrentRun(), gridFileName);
	
	Int_t result = gSystem->GetPathInfo(targetDir, 0, (Long64_t*) 0, 0, 0);
	if (result)
	{
		result = gSystem->mkdir(targetDir, kTRUE);
		if (result != 0)
		{
			Log("SHUTTLE", Form("StoreReferenceFile - Error creating base directory %s", targetDir.Data()));
			return kFALSE;
		}
	}
		
	result = gSystem->CopyFile(localFile, target);

	if (result == 0)
	{
		Log("SHUTTLE", Form("StoreReferenceFile - Stored file %s locally to %s", localFile, target.Data()));
		return kTRUE;
	}
	else
	{
		Log("SHUTTLE", Form("StoreReferenceFile - Storing file %s locally to %s failed", localFile, target.Data()));
		return kFALSE;
	}	
}

//______________________________________________________________________________________________
Bool_t AliShuttle::StoreRefFilesToGrid()
{
	//
	// Transfers the reference file to the Grid.
	//
	// The files are stored under the following location: 
	// <base folder of reference storage>/<DET>/<RUN#>_<gridFileName>
	//
	
	AliCDBManager* man = AliCDBManager::Instance();
	AliCDBStorage* sto = man->GetStorage(fgkLocalRefStorage);
	if (!sto)
		return kFALSE;
	TString localBaseFolder = sto->GetBaseFolder();
		
	TString dir;
	dir.Form("%s/%s", localBaseFolder.Data(), GetOfflineDetName(fCurrentDetector));
	
	AliCDBStorage* gridSto = man->GetStorage(fgkMainRefStorage);
	if (!gridSto)
		return kFALSE;
	TString gridBaseFolder = gridSto->GetBaseFolder();
	TString alienDir;
	alienDir.Form("%s%s", gridBaseFolder.Data(), GetOfflineDetName(fCurrentDetector));
	
	if (!gGrid) 
		return kFALSE;
	
	TString begin;
	begin.Form("%d_", GetCurrentRun());
	
	TSystemDirectory* baseDir = new TSystemDirectory("/", dir);
	if (!baseDir)
		return kTRUE;
		
	TList* dirList            = baseDir->GetListOfFiles();
	if (!dirList)
	{
		delete baseDir;
		return kTRUE;
	}
		
	Int_t nDirs               = dirList->GetEntries();
	
	Bool_t success = kTRUE;
	Bool_t first = kTRUE;
	
	for (Int_t iDir=0; iDir<nDirs; ++iDir)
	{
		TSystemFile* entry = dynamic_cast<TSystemFile*> (dirList->At(iDir));
		if (!entry)
			continue;
			
		if (entry->IsDirectory())
			continue;
			
		TString fileName(entry->GetName());
		if (!fileName.BeginsWith(begin))
			continue;
			
		if (first)
		{
			first = kFALSE;
			// check that DET folder exists, otherwise create it
			TGridResult* result = gGrid->Ls(alienDir.Data(), "a");
			
			if (!result)
				return kFALSE;
			
			if (!result->GetFileName(0)) 
			{
				if (!gGrid->Mkdir(alienDir.Data(),"",0))
				{
					Log("SHUTTLE", Form("StoreRefFilesToGrid - Cannot create directory %s",
							alienDir.Data()));
					delete baseDir;
					return kFALSE;
				}
				
			}
		}
			
		TString fullLocalPath;
		fullLocalPath.Form("%s/%s", dir.Data(), fileName.Data());
		
		TString fullGridPath;
		fullGridPath.Form("alien://%s/%s", alienDir.Data(), fileName.Data());

		Log("SHUTTLE", Form("StoreRefFilesToGrid - Copying local file %s to %s", fullLocalPath.Data(), fullGridPath.Data()));
		
		TFileMerger fileMerger;
		Bool_t result = fileMerger.Cp(fullLocalPath, fullGridPath);
		
		if (result)
		{
			Log("SHUTTLE", Form("StoreRefFilesToGrid - Copying local file %s to %s succeeded", fullLocalPath.Data(), fullGridPath.Data()));
			RemoveFile(fullLocalPath);
		}
		else
		{
			Log("SHUTTLE", Form("StoreRefFilesToGrid - Copying local file %s to %s failed", fullLocalPath.Data(), fullGridPath.Data()));
			success = kFALSE;
		}
	}
	
	delete baseDir;
	
	return success;
}

//______________________________________________________________________________________________
void AliShuttle::CleanLocalStorage(const TString& uri)
{
	//
	// Called in case the preprocessor is declared failed. Remove remaining objects from the local storages.
	//

	const char* type = 0;
	if(uri == fgkLocalCDB) {
		type = "OCDB";
	} else if(uri == fgkLocalRefStorage) {
		type = "reference";
	} else {
		AliError(Form("Invalid storage URI: %s", uri.Data()));
		return;
	}

	AliCDBManager* man = AliCDBManager::Instance();

	// open local storage
	AliCDBStorage *localSto = man->GetStorage(uri);
	if(!localSto) {
		Log("SHUTTLE",
			Form("CleanLocalStorage - cannot activate local %s storage", type));
		return;
	}

	TString filename(Form("%s/%s/*/Run*_v%d_s*.root",
		localSto->GetBaseFolder().Data(), fCurrentDetector.Data(), GetCurrentRun()));

	AliInfo(Form("filename = %s", filename.Data()));

	AliInfo(Form("Removing remaining local files from run %d and detector %s ...",
		GetCurrentRun(), fCurrentDetector.Data()));

	RemoveFile(filename.Data());

}

//______________________________________________________________________________________________
void AliShuttle::RemoveFile(const char* filename)
{
	//
	// removes local file
	//

	TString command(Form("rm -f %s", filename));

	Int_t result = gSystem->Exec(command.Data());
	if(result != 0)
	{
		Log("SHUTTLE", Form("RemoveFile - %s: Cannot remove file %s!",
			fCurrentDetector.Data(), filename));
	}
}

//______________________________________________________________________________________________
AliShuttleStatus* AliShuttle::ReadShuttleStatus()
{
	//
	// Reads the AliShuttleStatus from the CDB
	//

	if (fStatusEntry){
		delete fStatusEntry;
		fStatusEntry = 0;
	}

	fStatusEntry = AliCDBManager::Instance()->GetStorage(GetLocalCDB())
		->Get(Form("/SHUTTLE/STATUS/%s", fCurrentDetector.Data()), GetCurrentRun());

	if (!fStatusEntry) return 0;
	fStatusEntry->SetOwner(1);

	AliShuttleStatus* status = dynamic_cast<AliShuttleStatus*> (fStatusEntry->GetObject());
	if (!status) {
		AliError("Invalid object stored to CDB!");
		return 0;
	}

	return status;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::WriteShuttleStatus(AliShuttleStatus* status)
{
	//
	// writes the status for one subdetector
	//

	if (fStatusEntry){
		delete fStatusEntry;
		fStatusEntry = 0;
	}

	Int_t run = GetCurrentRun();

	AliCDBId id(AliCDBPath("SHUTTLE", "STATUS", fCurrentDetector), run, run);

	fStatusEntry = new AliCDBEntry(status, id, new AliCDBMetaData);
	fStatusEntry->SetOwner(1);

	UInt_t result = AliCDBManager::Instance()->GetStorage(fgkLocalCDB)->Put(fStatusEntry);

	if (!result) {
		Log("SHUTTLE", Form("WriteShuttleStatus - Failed for %s, run %d",
						fCurrentDetector.Data(), run));
		return kFALSE;
	}
	
	SendMLInfo();

	return kTRUE;
}

//______________________________________________________________________________________________
void AliShuttle::UpdateShuttleStatus(AliShuttleStatus::Status newStatus, Bool_t increaseCount)
{
	//
	// changes the AliShuttleStatus for the given detector and run to the given status
	//

	if (!fStatusEntry){
		AliError("UNEXPECTED: fStatusEntry empty");
		return;
	}

	AliShuttleStatus* status = dynamic_cast<AliShuttleStatus*> (fStatusEntry->GetObject());

	if (!status){
		Log("SHUTTLE", "UNEXPECTED: status could not be read from current CDB entry");
		return;
	}

	TString actionStr = Form("UpdateShuttleStatus - %s: Changing state from %s to %s",
				fCurrentDetector.Data(),
				status->GetStatusName(),
				status->GetStatusName(newStatus));
	Log("SHUTTLE", actionStr);
	SetLastAction(actionStr);

	status->SetStatus(newStatus);
	if (increaseCount) status->IncreaseCount();

	AliCDBManager::Instance()->GetStorage(fgkLocalCDB)->Put(fStatusEntry);

	SendMLInfo();
}

//______________________________________________________________________________________________
void AliShuttle::SendMLInfo()
{
	//
	// sends ML information about the current status of the current detector being processed
	//
	
	AliShuttleStatus* status = dynamic_cast<AliShuttleStatus*> (fStatusEntry->GetObject());
	
	if (!status){
		Log("SHUTTLE", "SendMLInfo - UNEXPECTED: status could not be read from current CDB entry");
		return;
	}
	
	TMonaLisaText  mlStatus(Form("%s_status", fCurrentDetector.Data()), status->GetStatusName());
	TMonaLisaValue mlRetryCount(Form("%s_count", fCurrentDetector.Data()), status->GetCount());

	TList mlList;
	mlList.Add(&mlStatus);
	mlList.Add(&mlRetryCount);

	fMonaLisa->SendParameters(&mlList);
}

//______________________________________________________________________________________________
Bool_t AliShuttle::ContinueProcessing()
{
	// this function reads the AliShuttleStatus information from CDB and
	// checks if the processing should be continued
	// if yes it returns kTRUE and updates the AliShuttleStatus with nextStatus

	if (!fConfig->HostProcessDetector(fCurrentDetector)) return kFALSE;

	AliPreprocessor* aPreprocessor =
		dynamic_cast<AliPreprocessor*> (fPreprocessorMap.GetValue(fCurrentDetector));
	if (!aPreprocessor)
	{
		AliInfo(Form("%s: no preprocessor registered", fCurrentDetector.Data()));
		return kFALSE;
	}

	AliShuttleLogbookEntry::Status entryStatus =
		fLogbookEntry->GetDetectorStatus(fCurrentDetector);

	if(entryStatus != AliShuttleLogbookEntry::kUnprocessed) {
		AliInfo(Form("ContinueProcessing - %s is %s",
				fCurrentDetector.Data(),
				fLogbookEntry->GetDetectorStatusName(entryStatus)));
		return kFALSE;
	}

	// if we get here, according to Shuttle logbook subdetector is in UNPROCESSED state

	// check if current run is first unprocessed run for current detector
	if (fConfig->StrictRunOrder(fCurrentDetector) &&
		!fFirstUnprocessed[GetDetPos(fCurrentDetector)])
	{
		if (fTestMode == kNone)
		{
			Log("SHUTTLE", Form("ContinueProcessing - %s requires strict run ordering but this is not the first unprocessed run!"));
			return kFALSE;
		}
		else
		{
			Log("SHUTTLE", Form("ContinueProcessing - In TESTMODE - Although %s requires strict run ordering and this is not the first unprocessed run, the SHUTTLE continues"));
		}
	}

	AliShuttleStatus* status = ReadShuttleStatus();
	if (!status) {
		// first time
		Log("SHUTTLE", Form("ContinueProcessing - %s: Processing first time",
				fCurrentDetector.Data()));
		status = new AliShuttleStatus(AliShuttleStatus::kStarted);
		return WriteShuttleStatus(status);
	}

	// The following two cases shouldn't happen if Shuttle Logbook was correctly updated.
	// If it happens it may mean Logbook updating failed... let's do it now!
	if (status->GetStatus() == AliShuttleStatus::kDone ||
	    status->GetStatus() == AliShuttleStatus::kFailed){
		Log("SHUTTLE", Form("ContinueProcessing - %s is already %s. Updating Shuttle Logbook",
					fCurrentDetector.Data(),
					status->GetStatusName(status->GetStatus())));
		UpdateShuttleLogbook(fCurrentDetector.Data(),
					status->GetStatusName(status->GetStatus()));
		return kFALSE;
	}

	if (status->GetStatus() == AliShuttleStatus::kStoreError) {
		Log("SHUTTLE",
			Form("ContinueProcessing - %s: Grid storage of one or more objects failed. Trying again now",
				fCurrentDetector.Data()));
		UpdateShuttleStatus(AliShuttleStatus::kStoreStarted);
		if (StoreOCDB()){
			Log("SHUTTLE", Form("ContinueProcessing - %s: all objects successfully stored into main storage",
				fCurrentDetector.Data()));
			UpdateShuttleStatus(AliShuttleStatus::kDone);
			UpdateShuttleLogbook(fCurrentDetector.Data(), "DONE");
		} else {
			Log("SHUTTLE",
				Form("ContinueProcessing - %s: Grid storage failed again",
					fCurrentDetector.Data()));
			UpdateShuttleStatus(AliShuttleStatus::kStoreError);
		}
		return kFALSE;
	}

	// if we get here, there is a restart
	Bool_t cont = kFALSE;

	// abort conditions
	if (status->GetCount() >= fConfig->GetMaxRetries()) {
		Log("SHUTTLE", Form("ContinueProcessing - %s failed %d times in status %s - "
				"Updating Shuttle Logbook", fCurrentDetector.Data(),
				status->GetCount(), status->GetStatusName()));
		UpdateShuttleLogbook(fCurrentDetector.Data(), "FAILED");
		UpdateShuttleStatus(AliShuttleStatus::kFailed);

		// there may still be objects in local OCDB and reference storage
		// and FXS databases may be not updated: do it now!
		
		// TODO Currently disabled, we want to keep files in case of failure!
		// CleanLocalStorage(fgkLocalCDB);
		// CleanLocalStorage(fgkLocalRefStorage);
		// UpdateTableFailCase();
		
		// Send mail to detector expert!
		AliInfo(Form("Sending mail to %s expert...", fCurrentDetector.Data()));
		if (!SendMail())
			Log("SHUTTLE", Form("ContinueProcessing - Could not send mail to %s expert",
					fCurrentDetector.Data()));

	} else {
		Log("SHUTTLE", Form("ContinueProcessing - %s: restarting. "
				"Aborted before with %s. Retry number %d.", fCurrentDetector.Data(),
				status->GetStatusName(), status->GetCount()));
		Bool_t increaseCount = kTRUE;
		if (status->GetStatus() == AliShuttleStatus::kDCSError || status->GetStatus() == AliShuttleStatus::kDCSStarted)
			increaseCount = kFALSE;
		UpdateShuttleStatus(AliShuttleStatus::kStarted, increaseCount);
		cont = kTRUE;
	}

	return cont;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::Process(AliShuttleLogbookEntry* entry)
{
	//
	// Makes data retrieval for all detectors in the configuration.
	// entry: Shuttle logbook entry, contains run paramenters and status of detectors
	// (Unprocessed, Inactive, Failed or Done).
	// Returns kFALSE in case of error occured and kTRUE otherwise
	//

	if (!entry) return kFALSE;

	fLogbookEntry = entry;

	AliInfo(Form("\n\n \t\t\t^*^*^*^*^*^*^*^*^*^*^*^* run %d: START ^*^*^*^*^*^*^*^*^*^*^*^* \n",
					GetCurrentRun()));

	// create ML instance that monitors this run
	fMonaLisa = new TMonaLisaWriter(Form("%d", GetCurrentRun()), "SHUTTLE", "aliendb1.cern.ch");
	// disable monitoring of other parameters that come e.g. from TFile
	gMonitoringWriter = 0;

	// Send the information to ML
	TMonaLisaText  mlStatus("SHUTTLE_status", "Processing");
	TMonaLisaText  mlRunType("SHUTTLE_runtype", Form("%s (%s)", entry->GetRunType(), entry->GetRunParameter("log")));

	TList mlList;
	mlList.Add(&mlStatus);
	mlList.Add(&mlRunType);

	fMonaLisa->SendParameters(&mlList);

	if (fLogbookEntry->IsDone())
	{
		Log("SHUTTLE","Process - Shuttle is already DONE. Updating logbook");
		UpdateShuttleLogbook("shuttle_done");
		fLogbookEntry = 0;
		return kTRUE;
	}

	// read test mode if flag is set
	if (fReadTestMode)
	{
		fTestMode = kNone;
		TString logEntry(entry->GetRunParameter("log"));
		//printf("log entry = %s\n", logEntry.Data());
		TString searchStr("Testmode: ");
		Int_t pos = logEntry.Index(searchStr.Data());
		//printf("%d\n", pos);
		if (pos >= 0)
		{
			TSubString subStr = logEntry(pos + searchStr.Length(), logEntry.Length());
			//printf("%s\n", subStr.String().Data());
			TString newStr(subStr.Data());
			TObjArray* token = newStr.Tokenize(' ');
			if (token)
			{
				//token->Print();
				TObjString* tmpStr = dynamic_cast<TObjString*> (token->First());
				if (tmpStr)
				{
					Int_t testMode = tmpStr->String().Atoi();
					if (testMode > 0)
					{
						Log("SHUTTLE", Form("Enabling test mode %d", testMode));
						SetTestMode((TestMode) testMode);
					}
				}
				delete token;	       
			}
		}
	}
	
	Log("SHUTTLE", Form("The test mode flag is %d", (Int_t) fTestMode));
	
	fLogbookEntry->Print("all");

	// Initialization
	Bool_t hasError = kFALSE;

	AliCDBStorage *mainCDBSto = AliCDBManager::Instance()->GetStorage(fgkMainCDB);
	if(mainCDBSto) mainCDBSto->QueryCDB(GetCurrentRun());
	AliCDBStorage *mainRefSto = AliCDBManager::Instance()->GetStorage(fgkMainRefStorage);
	if(mainRefSto) mainRefSto->QueryCDB(GetCurrentRun());

	// Loop on detectors in the configuration
	TIter iter(fConfig->GetDetectors());
	TObjString* aDetector = 0;

	while ((aDetector = (TObjString*) iter.Next()))
	{
		fCurrentDetector = aDetector->String();

		if (ContinueProcessing() == kFALSE) continue;

		AliInfo(Form("\n\n \t\t\t****** run %d - %s: START  ******",
						GetCurrentRun(), aDetector->GetName()));

		for(Int_t iSys=0;iSys<3;iSys++) fFXSCalled[iSys]=kFALSE;

		Log(fCurrentDetector.Data(), "Starting processing");

		Int_t pid = fork();

		if (pid < 0)
		{
			Log("SHUTTLE", "ERROR: Forking failed");
		}
		else if (pid > 0)
		{
			// parent
			AliInfo(Form("In parent process of %d - %s: Starting monitoring",
							GetCurrentRun(), aDetector->GetName()));

			Long_t begin = time(0);

			int status; // to be used with waitpid, on purpose an int (not Int_t)!
			while (waitpid(pid, &status, WNOHANG) == 0)
			{
				Long_t expiredTime = time(0) - begin;

				if (expiredTime > fConfig->GetPPTimeOut())
				{
					TString tmp;
					tmp.Form("Process of %s time out. Run time: %d seconds. Killing...",
								fCurrentDetector.Data(), expiredTime);
					Log("SHUTTLE", tmp);
					Log(fCurrentDetector, tmp);

					kill(pid, 9);

    					UpdateShuttleStatus(AliShuttleStatus::kPPTimeOut);
					hasError = kTRUE;

					gSystem->Sleep(1000);
				}
				else
				{
					gSystem->Sleep(1000);
					
					TString checkStr;
					checkStr.Form("ps -o vsize --pid %d | tail -n 1", pid);
					FILE* pipe = gSystem->OpenPipe(checkStr, "r");
					if (!pipe)
					{
						Log("SHUTTLE", Form("Error: Could not open pipe to %s", checkStr.Data()));
						continue;
					}
						
					char buffer[100];
					if (!fgets(buffer, 100, pipe))
					{
						Log("SHUTTLE", "Error: ps did not return anything");
						gSystem->ClosePipe(pipe);
						continue;
					}
					gSystem->ClosePipe(pipe);
					
					//Log("SHUTTLE", Form("ps returned %s", buffer));
					
					Int_t mem = 0;
					if ((sscanf(buffer, "%d\n", &mem) != 1) || !mem)
					{
						Log("SHUTTLE", "Error: Could not parse output of ps");
						continue;
					}
					
					if (expiredTime % 60 == 0)
						Log("SHUTTLE", Form("%s: Checking process. Run time: %d seconds - Memory consumption: %d KB",
								fCurrentDetector.Data(), expiredTime, mem));
					
					if (mem > fConfig->GetPPMaxMem())
					{
						TString tmp;
						tmp.Form("Process exceeds maximum allowed memory (%d KB > %d KB). Killing...",
							mem, fConfig->GetPPMaxMem());
						Log("SHUTTLE", tmp);
						Log(fCurrentDetector, tmp);
	
						kill(pid, 9);
	
	    					UpdateShuttleStatus(AliShuttleStatus::kPPOutOfMemory);
						hasError = kTRUE;
	
						gSystem->Sleep(1000);
					}
				}
			}

			AliInfo(Form("In parent process of %d - %s: Client has terminated.",
								GetCurrentRun(), aDetector->GetName()));

			if (WIFEXITED(status))
			{
				Int_t returnCode = WEXITSTATUS(status);

				Log("SHUTTLE", Form("%s: the return code is %d", fCurrentDetector.Data(),
										returnCode));

				if (returnCode == 0) hasError = kTRUE;
			}
		}
		else if (pid == 0)
		{
			// client
			AliInfo(Form("In client process of %d - %s", GetCurrentRun(), aDetector->GetName()));

			AliInfo("Redirecting output...");

			if ((freopen(GetLogFileName(fCurrentDetector), "w", stdout)) == 0)
			{
				Log("SHUTTLE", "Could not freopen stdout");
			}
			else
			{
				fOutputRedirected = kTRUE;
				if ((dup2(fileno(stdout), fileno(stderr))) < 0)
					Log("SHUTTLE", "Could not redirect stderr");
				
			}
			
			Bool_t success = ProcessCurrentDetector();
			if (success) // Preprocessor finished successfully!
			{ 
				// Update time_processed field in FXS DB
				if (UpdateTable() == kFALSE)
					Log("SHUTTLE", Form("Process - %s: Could not update FXS databases!"));

				// Transfer the data from local storage to main storage (Grid)
				UpdateShuttleStatus(AliShuttleStatus::kStoreStarted);
				if (StoreOCDB() == kFALSE)
				{
					AliInfo(Form("\n \t\t\t****** run %d - %s: STORAGE ERROR ****** \n\n",
							GetCurrentRun(), aDetector->GetName()));
					UpdateShuttleStatus(AliShuttleStatus::kStoreError);
					success = kFALSE;
				} else {
					AliInfo(Form("\n \t\t\t****** run %d - %s: DONE ****** \n\n",
							GetCurrentRun(), aDetector->GetName()));
					UpdateShuttleStatus(AliShuttleStatus::kDone);
					UpdateShuttleLogbook(fCurrentDetector, "DONE");
				}
			}

			for (UInt_t iSys=0; iSys<3; iSys++)
			{
				if (fFXSCalled[iSys]) fFXSlist[iSys].Clear();
			}

			AliInfo(Form("Client process of %d - %s is exiting now with %d.",
							GetCurrentRun(), aDetector->GetName(), success));

			// the client exits here
			gSystem->Exit(success);

			AliError("We should never get here!!!");
		}
	}

	AliInfo(Form("\n\n \t\t\t^*^*^*^*^*^*^*^*^*^*^*^* run %d: FINISH ^*^*^*^*^*^*^*^*^*^*^*^* \n",
							GetCurrentRun()));

	//check if shuttle is done for this run, if so update logbook
	TObjArray checkEntryArray;
	checkEntryArray.SetOwner(1);
	TString whereClause = Form("where run=%d", GetCurrentRun());
	if (!QueryShuttleLogbook(whereClause.Data(), checkEntryArray) || checkEntryArray.GetEntries() == 0) {
		Log("SHUTTLE", Form("Process - Warning: Cannot check status of run %d on Shuttle logbook!",
						GetCurrentRun()));
		return hasError == kFALSE;
	}

	AliShuttleLogbookEntry* checkEntry = dynamic_cast<AliShuttleLogbookEntry*>
						(checkEntryArray.At(0));

	if (checkEntry)
	{
		if (checkEntry->IsDone())
		{
			Log("SHUTTLE","Process - Shuttle is DONE. Updating logbook");
			UpdateShuttleLogbook("shuttle_done");
		}
		else
		{
			for (UInt_t iDet=0; iDet<NDetectors(); iDet++)
			{
				if (checkEntry->GetDetectorStatus(iDet) == AliShuttleLogbookEntry::kUnprocessed)
				{
					AliDebug(2, Form("Run %d: setting %s as \"not first time unprocessed\"",
							checkEntry->GetRun(), GetDetName(iDet)));
					fFirstUnprocessed[iDet] = kFALSE;
				}
			}
		}
	}

	// remove ML instance
	delete fMonaLisa;
	fMonaLisa = 0;

	fLogbookEntry = 0;

	return hasError == kFALSE;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::ProcessCurrentDetector()
{
	//
        // Makes data retrieval just for a specific detector (fCurrentDetector).
	// Threre should be a configuration for this detector.

	AliInfo(Form("Retrieving values for %s, run %d", fCurrentDetector.Data(), GetCurrentRun()));

	TMap dcsMap;
	dcsMap.SetOwner(1);

	Bool_t aDCSError = kFALSE;

	// call preprocessor
	AliPreprocessor* aPreprocessor =
		dynamic_cast<AliPreprocessor*> (fPreprocessorMap.GetValue(fCurrentDetector));

	aPreprocessor->Initialize(GetCurrentRun(), GetCurrentStartTime(), GetCurrentEndTime());

	Bool_t processDCS = aPreprocessor->ProcessDCS();

	if (!processDCS)
	{
		Log(fCurrentDetector, "The preprocessor requested to skip the retrieval of DCS values");
	}
	else if (fTestMode & kSkipDCS))
	{
		Log(fCurrentDetector, "In TESTMODE - Skipping DCS processing!");
	} 
	else if (fTestMode & kErrorDCS)
	{
		Log(fCurrentDetector, "In TESTMODE - Simulating DCS error");
		UpdateShuttleStatus(AliShuttleStatus::kDCSStarted);
		UpdateShuttleStatus(AliShuttleStatus::kDCSError);
		return kFALSE;
	} else {

		UpdateShuttleStatus(AliShuttleStatus::kDCSStarted);

		TString host(fConfig->GetDCSHost(fCurrentDetector));
		Int_t port = fConfig->GetDCSPort(fCurrentDetector);

		// Retrieval of Aliases
		TObjString* anAlias = 0;
		Int_t iAlias = 1;
		Int_t nTotAliases= ((TMap*)fConfig->GetDCSAliases(fCurrentDetector))->GetEntries();
		TIter iterAliases(fConfig->GetDCSAliases(fCurrentDetector));
		while ((anAlias = (TObjString*) iterAliases.Next()))
		{
			TObjArray *valueSet = new TObjArray();
			valueSet->SetOwner(1);

			if (((iAlias-1) % 500) == 0 || iAlias == nTotAliases)
				AliInfo(Form("Querying DCS archive: alias %s (%d of %d)",
						anAlias->GetName(), iAlias++, nTotAliases));
			aDCSError = (GetValueSet(host, port, anAlias->String(), valueSet, kAlias) == 0);

			if(!aDCSError)
			{
				dcsMap.Add(anAlias->Clone(), valueSet);
			} else {
				Log(fCurrentDetector,
					Form("ProcessCurrentDetector - Error while retrieving alias %s",
						anAlias->GetName()));
				UpdateShuttleStatus(AliShuttleStatus::kDCSError);
				dcsMap.DeleteAll();
				return kFALSE;
			}
		}

		// Retrieval of Data Points
		TObjString* aDP = 0;
		Int_t iDP = 0;
		Int_t nTotDPs= ((TMap*)fConfig->GetDCSDataPoints(fCurrentDetector))->GetEntries();
		TIter iterDP(fConfig->GetDCSDataPoints(fCurrentDetector));
		while ((aDP = (TObjString*) iterDP.Next()))
		{
			TObjArray *valueSet = new TObjArray();
			valueSet->SetOwner(1);
			if (((iDP-1) % 500) == 0 || iDP == nTotDPs)
				AliInfo(Form("Querying DCS archive: DP %s (%d of %d)",
						aDP->GetName(), iDP++, nTotDPs));
			aDCSError = (GetValueSet(host, port, aDP->String(), valueSet, kDP) == 0);

			if(!aDCSError)
			{
				dcsMap.Add(aDP->Clone(), valueSet);
			} else {
				Log(fCurrentDetector,
					Form("ProcessCurrentDetector - Error while retrieving data point %s",
						aDP->GetName()));
				UpdateShuttleStatus(AliShuttleStatus::kDCSError);
				dcsMap.DeleteAll();
				return kFALSE;
			}
		}
	}

	// DCS Archive DB processing successful. Call Preprocessor!
	UpdateShuttleStatus(AliShuttleStatus::kPPStarted);

	UInt_t returnValue = aPreprocessor->Process(&dcsMap);

	if (returnValue > 0) // Preprocessor error!
	{
		Log(fCurrentDetector, Form("Preprocessor failed. Process returned %d.", returnValue));
		UpdateShuttleStatus(AliShuttleStatus::kPPError);
		dcsMap.DeleteAll();
		return kFALSE;
	}
	
	// preprocessor ok!
	UpdateShuttleStatus(AliShuttleStatus::kPPDone);
	Log(fCurrentDetector, Form("ProcessCurrentDetector - %s preprocessor returned success",
				fCurrentDetector.Data()));

	dcsMap.DeleteAll();

	return kTRUE;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::QueryShuttleLogbook(const char* whereClause,
		TObjArray& entries)
{
	// Query DAQ's Shuttle logbook and fills detector status object.
	// Call QueryRunParameters to query DAQ logbook for run parameters.
	//

	entries.SetOwner(1);

	// check connection, in case connect
	if(!Connect(3)) return kFALSE;

	TString sqlQuery;
	sqlQuery = Form("select * from %s %s order by run", fConfig->GetShuttlelbTable(), whereClause);

	TSQLResult* aResult = fServer[3]->Query(sqlQuery);
	if (!aResult) {
		AliError(Form("Can't execute query <%s>!", sqlQuery.Data()));
		return kFALSE;
	}

	AliDebug(2,Form("Query = %s", sqlQuery.Data()));

	if(aResult->GetRowCount() == 0) {
		AliInfo("No entries in Shuttle Logbook match request");
		delete aResult;
		return kTRUE;
	}

	// TODO Check field count!
	const UInt_t nCols = 22;
	if (aResult->GetFieldCount() != (Int_t) nCols) {
		AliError("Invalid SQL result field number!");
		delete aResult;
		return kFALSE;
	}

	TSQLRow* aRow;
	while ((aRow = aResult->Next())) {
		TString runString(aRow->GetField(0), aRow->GetFieldLength(0));
		Int_t run = runString.Atoi();

		AliShuttleLogbookEntry *entry = QueryRunParameters(run);
		if (!entry)
			continue;

		// loop on detectors
		for(UInt_t ii = 0; ii < nCols; ii++)
			entry->SetDetectorStatus(aResult->GetFieldName(ii), aRow->GetField(ii));

		entries.AddLast(entry);
		delete aRow;
	}

	delete aResult;
	return kTRUE;
}

//______________________________________________________________________________________________
AliShuttleLogbookEntry* AliShuttle::QueryRunParameters(Int_t run)
{
	//
	// Retrieve run parameters written in the DAQ logbook and sets them into AliShuttleLogbookEntry object
	//

	// check connection, in case connect
	if (!Connect(3))
		return 0;

	TString sqlQuery;
	sqlQuery.Form("select * from %s where run=%d", fConfig->GetDAQlbTable(), run);

	TSQLResult* aResult = fServer[3]->Query(sqlQuery);
	if (!aResult) {
		AliError(Form("Can't execute query <%s>!", sqlQuery.Data()));
		return 0;
	}

	if (aResult->GetRowCount() == 0) {
		Log("SHUTTLE", Form("QueryRunParameters - No entry in DAQ Logbook for run %d. Skipping", run));
		delete aResult;
		return 0;
	}

	if (aResult->GetRowCount() > 1) {
		AliError(Form("More than one entry in DAQ Logbook for run %d. Skipping", run));
		delete aResult;
		return 0;
	}

	TSQLRow* aRow = aResult->Next();
	if (!aRow)
	{
		AliError(Form("Could not retrieve row for run %d. Skipping", run));
		delete aResult;
		return 0;
	}

	AliShuttleLogbookEntry* entry = new AliShuttleLogbookEntry(run);

	for (Int_t ii = 0; ii < aResult->GetFieldCount(); ii++)
		entry->SetRunParameter(aResult->GetFieldName(ii), aRow->GetField(ii));

	UInt_t startTime = entry->GetStartTime();
	UInt_t endTime = entry->GetEndTime();

	if (!startTime || !endTime || startTime > endTime) {
		Log("SHUTTLE",
			Form("QueryRunParameters - Invalid parameters for Run %d: startTime = %d, endTime = %d",
				run, startTime, endTime));
		delete entry;
		delete aRow;
		delete aResult;
		return 0;
	}

	delete aRow;
	delete aResult;

	return entry;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::GetValueSet(const char* host, Int_t port, const char* entry,
				TObjArray* valueSet, DCSType type)
{
	// Retrieve all "entry" data points from the DCS server
	// host, port: TSocket connection parameters
	// entry: name of the alias or data point
	// valueSet: array of retrieved AliDCSValue's
	// type: kAlias or kDP

	AliDCSClient client(host, port, fTimeout, fRetries);
	if (!client.IsConnected())
	{
		return kFALSE;
	}

	Int_t result=0;

	if (type == kAlias)
	{
		result = client.GetAliasValues(entry,
			GetCurrentStartTime(), GetCurrentEndTime(), valueSet);
	} else
	if (type == kDP)
	{
		result = client.GetDPValues(entry,
			GetCurrentStartTime(), GetCurrentEndTime(), valueSet);
	}

	if (result < 0)
	{
		Log(fCurrentDetector.Data(), Form("GetValueSet - Can't get '%s'! Reason: %s",
			entry, AliDCSClient::GetErrorString(result)));

		if (result == AliDCSClient::fgkServerError)
		{
			Log(fCurrentDetector.Data(), Form("GetValueSet - Server error: %s",
				client.GetServerError().Data()));
		}

		return kFALSE;
	}

	return kTRUE;
}

//______________________________________________________________________________________________
const char* AliShuttle::GetFile(Int_t system, const char* detector,
		const char* id, const char* source)
{
	// Get calibration file from file exchange servers
	// First queris the FXS database for the file name, using the run, detector, id and source info
	// then calls RetrieveFile(filename) for actual copy to local disk
	// run: current run being processed (given by Logbook entry fLogbookEntry)
	// detector: the Preprocessor name
	// id: provided as a parameter by the Preprocessor
	// source: provided by the Preprocessor through GetFileSources function

	// check if test mode should simulate a FXS error
	if (fTestMode & kErrorFXSFiles)
	{
		Log(detector, Form("GetFile - In TESTMODE - Simulating error while connecting to %s FXS", GetSystemName(system)));
		return 0;
	}
	
	// check connection, in case connect
	if (!Connect(system))
	{
		Log(detector, Form("GetFile - Couldn't connect to %s FXS database", GetSystemName(system)));
		return 0;
	}

	// Query preparation
	TString sourceName(source);
	Int_t nFields = 3;
	TString sqlQueryStart = Form("select filePath,size,fileChecksum from %s where",
								fConfig->GetFXSdbTable(system));
	TString whereClause = Form("run=%d and detector=\"%s\" and fileId=\"%s\"",
								GetCurrentRun(), detector, id);

	if (system == kDAQ)
	{
		whereClause += Form(" and DAQsource=\"%s\"", source);
	}
	else if (system == kDCS)
	{
		sourceName="none";
	}
	else if (system == kHLT)
	{
		whereClause += Form(" and DDLnumbers=\"%s\"", source);
		nFields = 3;
	}

	TString sqlQuery = Form("%s %s", sqlQueryStart.Data(), whereClause.Data());

	AliDebug(2, Form("SQL query: \n%s",sqlQuery.Data()));

	// Query execution
	TSQLResult* aResult = 0;
	aResult = dynamic_cast<TSQLResult*> (fServer[system]->Query(sqlQuery));
	if (!aResult) {
		Log(detector, Form("GetFileName - Can't execute SQL query to %s database for: id = %s, source = %s",
				GetSystemName(system), id, sourceName.Data()));
		return 0;
	}

	if(aResult->GetRowCount() == 0)
	{
		Log(detector,
			Form("GetFileName - No entry in %s FXS db for: id = %s, source = %s",
				GetSystemName(system), id, sourceName.Data()));
		delete aResult;
		return 0;
	}

	if (aResult->GetRowCount() > 1) {
		Log(detector,
			Form("GetFileName - More than one entry in %s FXS db for: id = %s, source = %s",
				GetSystemName(system), id, sourceName.Data()));
		delete aResult;
		return 0;
	}

	if (aResult->GetFieldCount() != nFields) {
		Log(detector,
			Form("GetFileName - Wrong field count in %s FXS db for: id = %s, source = %s",
				GetSystemName(system), id, sourceName.Data()));
		delete aResult;
		return 0;
	}

	TSQLRow* aRow = dynamic_cast<TSQLRow*> (aResult->Next());

	if (!aRow){
		Log(detector, Form("GetFileName - Empty set result in %s FXS db from query: id = %s, source = %s",
				GetSystemName(system), id, sourceName.Data()));
		delete aResult;
		return 0;
	}

	TString filePath(aRow->GetField(0), aRow->GetFieldLength(0));
	TString fileSize(aRow->GetField(1), aRow->GetFieldLength(1));
	TString fileChecksum(aRow->GetField(2), aRow->GetFieldLength(2));

	delete aResult;
	delete aRow;

	AliDebug(2, Form("filePath = %s; size = %s, fileChecksum = %s",
				filePath.Data(), fileSize.Data(), fileChecksum.Data()));

	// retrieved file is renamed to make it unique
	TString localFileName = Form("%s_%s_%d_%s_%s.shuttle",
					GetSystemName(system), detector, GetCurrentRun(), id, sourceName.Data());


	// file retrieval from FXS
	UInt_t nRetries = 0;
	UInt_t maxRetries = 3;
	Bool_t result = kFALSE;

	// copy!! if successful TSystem::Exec returns 0
	while(nRetries++ < maxRetries) {
		AliDebug(2, Form("Trying to copy file. Retry # %d", nRetries));
		result = RetrieveFile(system, filePath.Data(), localFileName.Data());
		if(!result)
		{
			Log(detector, Form("GetFileName - Copy of file %s from %s FXS failed",
					filePath.Data(), GetSystemName(system)));
			continue;
		} else {
			AliInfo(Form("File %s copied from %s FXS into %s/%s",
						filePath.Data(), GetSystemName(system),
						GetShuttleTempDir(), localFileName.Data()));
		}

		if (fileChecksum.Length()>0)
		{
			// compare md5sum of local file with the one stored in the FXS DB
			Int_t md5Comp = gSystem->Exec(Form("md5sum %s/%s |grep %s 2>&1 > /dev/null",
						GetShuttleTempDir(), localFileName.Data(), fileChecksum.Data()));

			if (md5Comp != 0)
			{
				Log(detector, Form("GetFileName - md5sum of file %s does not match with local copy!",
							filePath.Data()));
				result = kFALSE;
				continue;
			}
		} else {
			Log(fCurrentDetector, Form("GetFile - md5sum of file %s not set in %s database, skipping comparison",
							filePath.Data(), GetSystemName(system)));
		}
		if (result) break;
	}

	if(!result) return 0;

	fFXSCalled[system]=kTRUE;
	TObjString *fileParams = new TObjString(Form("%s#!?!#%s", id, sourceName.Data()));
	fFXSlist[system].Add(fileParams);

	static TString fullLocalFileName;
	fullLocalFileName = TString::Format("%s/%s", GetShuttleTempDir(), localFileName.Data());

	AliInfo(Form("fullLocalFileName = %s", fullLocalFileName.Data()));

	return fullLocalFileName.Data();

}

//______________________________________________________________________________________________
Bool_t AliShuttle::RetrieveFile(UInt_t system, const char* fxsFileName, const char* localFileName)
{
	//
	// Copies file from FXS to local Shuttle machine
	//

	// check temp directory: trying to cd to temp; if it does not exist, create it
	AliDebug(2, Form("Copy file %s from %s FXS into %s/%s",
			GetSystemName(system), fxsFileName, GetShuttleTempDir(), localFileName));

	void* dir = gSystem->OpenDirectory(GetShuttleTempDir());
	if (dir == NULL) {
		if (gSystem->mkdir(GetShuttleTempDir(), kTRUE)) {
			AliError(Form("Can't open directory <%s>", GetShuttleTempDir()));
			return kFALSE;
		}

	} else {
		gSystem->FreeDirectory(dir);
	}

	TString baseFXSFolder;
	if (system == kDAQ)
	{
		baseFXSFolder = "FES/";
	}
	else if (system == kDCS)
	{
		baseFXSFolder = "";
	}
	else if (system == kHLT)
	{
		baseFXSFolder = "~/";
	}


	TString command = Form("scp -oPort=%d -2 %s@%s:%s%s %s/%s",
		fConfig->GetFXSPort(system),
		fConfig->GetFXSUser(system),
		fConfig->GetFXSHost(system),
		baseFXSFolder.Data(),
		fxsFileName,
		GetShuttleTempDir(),
		localFileName);

	AliDebug(2, Form("%s",command.Data()));

	Bool_t result = (gSystem->Exec(command.Data()) == 0);

	return result;
}

//______________________________________________________________________________________________
TList* AliShuttle::GetFileSources(Int_t system, const char* detector, const char* id)
{
	//
	// Get sources producing the condition file Id from file exchange servers
	//
	
	// check if test mode should simulate a FXS error
	if (fTestMode & kErrorFXSSources)
	{
		Log(detector, Form("GetFileSources - In TESTMODE - Simulating error while connecting to %s FXS", GetSystemName(system)));
		return 0;
	}


	if (system == kDCS)
	{
		AliError("DCS system has only one source of data!");
		return NULL;
	}

	// check connection, in case connect
	if (!Connect(system))
	{
		Log(detector, Form("GetFile - Couldn't connect to %s FXS database", GetSystemName(system)));
		return NULL;
	}

	TString sourceName = 0;
	if (system == kDAQ)
	{
		sourceName = "DAQsource";
	} else if (system == kHLT)
	{
		sourceName = "DDLnumbers";
	}

	TString sqlQueryStart = Form("select %s from %s where", sourceName.Data(), fConfig->GetFXSdbTable(system));
	TString whereClause = Form("run=%d and detector=\"%s\" and fileId=\"%s\"",
				GetCurrentRun(), detector, id);
	TString sqlQuery = Form("%s %s", sqlQueryStart.Data(), whereClause.Data());

	AliDebug(2, Form("SQL query: \n%s",sqlQuery.Data()));

	// Query execution
	TSQLResult* aResult;
	aResult = fServer[system]->Query(sqlQuery);
	if (!aResult) {
		Log(detector, Form("GetFileSources - Can't execute SQL query to %s database for id: %s",
				GetSystemName(system), id));
		return 0;
	}

	TList *list = new TList();
	list->SetOwner(1);
	
	if (aResult->GetRowCount() == 0)
	{
		Log(detector,
			Form("GetFileSources - No entry in %s FXS table for id: %s", GetSystemName(system), id));
		delete aResult;
		return list;
	}

	TSQLRow* aRow;

	while ((aRow = aResult->Next()))
	{

		TString source(aRow->GetField(0), aRow->GetFieldLength(0));
		AliDebug(2, Form("%s = %s", sourceName.Data(), source.Data()));
		list->Add(new TObjString(source));
		delete aRow;
	}

	delete aResult;

	return list;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::Connect(Int_t system)
{
	// Connect to MySQL Server of the system's FXS MySQL databases
	// DAQ Logbook, Shuttle Logbook and DAQ FXS db are on the same host
	//

	// check connection: if already connected return
	if(fServer[system] && fServer[system]->IsConnected()) return kTRUE;

	TString dbHost, dbUser, dbPass, dbName;

	if (system < 3) // FXS db servers
	{
		dbHost = Form("mysql://%s:%d", fConfig->GetFXSdbHost(system), fConfig->GetFXSdbPort(system));
		dbUser = fConfig->GetFXSdbUser(system);
		dbPass = fConfig->GetFXSdbPass(system);
		dbName =   fConfig->GetFXSdbName(system);
	} else { // Run & Shuttle logbook servers
	// TODO Will the Shuttle logbook server be the same as the Run logbook server ???
		dbHost = Form("mysql://%s:%d", fConfig->GetDAQlbHost(), fConfig->GetDAQlbPort());
		dbUser = fConfig->GetDAQlbUser();
		dbPass = fConfig->GetDAQlbPass();
		dbName =   fConfig->GetDAQlbDB();
	}

	fServer[system] = TSQLServer::Connect(dbHost.Data(), dbUser.Data(), dbPass.Data());
	if (!fServer[system] || !fServer[system]->IsConnected()) {
		if(system < 3)
		{
		AliError(Form("Can't establish connection to FXS database for %s",
					AliShuttleInterface::GetSystemName(system)));
		} else {
		AliError("Can't establish connection to Run logbook.");
		}
		if(fServer[system]) delete fServer[system];
		return kFALSE;
	}

	// Get tables
	TSQLResult* aResult=0;
	switch(system){
		case kDAQ:
			aResult = fServer[kDAQ]->GetTables(dbName.Data());
			break;
		case kDCS:
			aResult = fServer[kDCS]->GetTables(dbName.Data());
			break;
		case kHLT:
			aResult = fServer[kHLT]->GetTables(dbName.Data());
			break;
		default:
			aResult = fServer[3]->GetTables(dbName.Data());
			break;
	}

	delete aResult;
	return kTRUE;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::UpdateTable()
{
	//
	// Update FXS table filling time_processed field in all rows corresponding to current run and detector
	//

	Bool_t result = kTRUE;

	for (UInt_t system=0; system<3; system++)
	{
		if(!fFXSCalled[system]) continue;

		// check connection, in case connect
		if (!Connect(system))
		{
			Log(fCurrentDetector, Form("UpdateTable - Couldn't connect to %s FXS database", GetSystemName(system)));
			result = kFALSE;
			continue;
		}

		TTimeStamp now; // now

		// Loop on FXS list entries
		TIter iter(&fFXSlist[system]);
		TObjString *aFXSentry=0;
		while ((aFXSentry = dynamic_cast<TObjString*> (iter.Next())))
		{
			TString aFXSentrystr = aFXSentry->String();
			TObjArray *aFXSarray = aFXSentrystr.Tokenize("#!?!#");
			if (!aFXSarray || aFXSarray->GetEntries() != 2 )
			{
				Log(fCurrentDetector, Form("UpdateTable - error updating %s FXS entry. Check string: <%s>",
					GetSystemName(system), aFXSentrystr.Data()));
				if(aFXSarray) delete aFXSarray;
				result = kFALSE;
				continue;
			}
			const char* fileId = ((TObjString*) aFXSarray->At(0))->GetName();
			const char* source = ((TObjString*) aFXSarray->At(1))->GetName();

			TString whereClause;
			if (system == kDAQ)
			{
				whereClause = Form("where run=%d and detector=\"%s\" and fileId=\"%s\" and DAQsource=\"%s\";",
							GetCurrentRun(), fCurrentDetector.Data(), fileId, source);
			}
			else if (system == kDCS)
			{
				whereClause = Form("where run=%d and detector=\"%s\" and fileId=\"%s\";",
							GetCurrentRun(), fCurrentDetector.Data(), fileId);
			}
			else if (system == kHLT)
			{
				whereClause = Form("where run=%d and detector=\"%s\" and fileId=\"%s\" and DDLnumbers=\"%s\";",
							GetCurrentRun(), fCurrentDetector.Data(), fileId, source);
			}

			delete aFXSarray;

			TString sqlQuery = Form("update %s set time_processed=%d %s", fConfig->GetFXSdbTable(system),
								now.GetSec(), whereClause.Data());

			AliDebug(2, Form("SQL query: \n%s",sqlQuery.Data()));

			// Query execution
			TSQLResult* aResult;
			aResult = dynamic_cast<TSQLResult*> (fServer[system]->Query(sqlQuery));
			if (!aResult)
			{
				Log(fCurrentDetector, Form("UpdateTable - %s db: can't execute SQL query <%s>",
								GetSystemName(system), sqlQuery.Data()));
				result = kFALSE;
				continue;
			}
			delete aResult;
		}
	}

	return result;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::UpdateTableFailCase()
{
	// Update FXS table filling time_processed field in all rows corresponding to current run and detector
	// this is called in case the preprocessor is declared failed for the current run, because
	// the fields are updated only in case of success

	Bool_t result = kTRUE;

	for (UInt_t system=0; system<3; system++)
	{
		// check connection, in case connect
		if (!Connect(system))
		{
			Log(fCurrentDetector, Form("UpdateTableFailCase - Couldn't connect to %s FXS database",
							GetSystemName(system)));
			result = kFALSE;
			continue;
		}

		TTimeStamp now; // now

		// Loop on FXS list entries

		TString whereClause = Form("where run=%d and detector=\"%s\";",
						GetCurrentRun(), fCurrentDetector.Data());


		TString sqlQuery = Form("update %s set time_processed=%d %s", fConfig->GetFXSdbTable(system),
							now.GetSec(), whereClause.Data());

		AliDebug(2, Form("SQL query: \n%s",sqlQuery.Data()));

		// Query execution
		TSQLResult* aResult;
		aResult = dynamic_cast<TSQLResult*> (fServer[system]->Query(sqlQuery));
		if (!aResult)
		{
			Log(fCurrentDetector, Form("UpdateTableFailCase - %s db: can't execute SQL query <%s>",
							GetSystemName(system), sqlQuery.Data()));
			result = kFALSE;
			continue;
		}
		delete aResult;
	}

	return result;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::UpdateShuttleLogbook(const char* detector, const char* status)
{
	//
	// Update Shuttle logbook filling detector or shuttle_done column
	// ex. of usage: UpdateShuttleLogbook("PHOS", "DONE") or UpdateShuttleLogbook("shuttle_done")
	//

	// check connection, in case connect
	if(!Connect(3)){
		Log("SHUTTLE", "UpdateShuttleLogbook - Couldn't connect to DAQ Logbook.");
		return kFALSE;
	}

	TString detName(detector);
	TString setClause;
	if(detName == "shuttle_done")
	{
		setClause = "set shuttle_done=1";

		// Send the information to ML
		TMonaLisaText  mlStatus("SHUTTLE_status", "Done");

		TList mlList;
		mlList.Add(&mlStatus);

		fMonaLisa->SendParameters(&mlList);
	} else {
		TString statusStr(status);
		if(statusStr.Contains("done", TString::kIgnoreCase) ||
		   statusStr.Contains("failed", TString::kIgnoreCase)){
			setClause = Form("set %s=\"%s\"", detector, status);
		} else {
			Log("SHUTTLE",
				Form("UpdateShuttleLogbook - Invalid status <%s> for detector %s",
					status, detector));
			return kFALSE;
		}
	}

	TString whereClause = Form("where run=%d", GetCurrentRun());

	TString sqlQuery = Form("update %s %s %s",
					fConfig->GetShuttlelbTable(), setClause.Data(), whereClause.Data());

	AliDebug(2, Form("SQL query: \n%s",sqlQuery.Data()));

	// Query execution
	TSQLResult* aResult;
	aResult = dynamic_cast<TSQLResult*> (fServer[3]->Query(sqlQuery));
	if (!aResult) {
		Log("SHUTTLE", Form("UpdateShuttleLogbook - Can't execute query <%s>", sqlQuery.Data()));
		return kFALSE;
	}
	delete aResult;

	return kTRUE;
}

//______________________________________________________________________________________________
Int_t AliShuttle::GetCurrentRun() const
{
	//
	// Get current run from logbook entry
	//

	return fLogbookEntry ? fLogbookEntry->GetRun() : -1;
}

//______________________________________________________________________________________________
UInt_t AliShuttle::GetCurrentStartTime() const
{
	//
	// get current start time
	//

	return fLogbookEntry ? fLogbookEntry->GetStartTime() : 0;
}

//______________________________________________________________________________________________
UInt_t AliShuttle::GetCurrentEndTime() const
{
	//
	// get current end time from logbook entry
	//

	return fLogbookEntry ? fLogbookEntry->GetEndTime() : 0;
}

//______________________________________________________________________________________________
void AliShuttle::Log(const char* detector, const char* message)
{
	//
	// Fill log string with a message
	//

	void* dir = gSystem->OpenDirectory(GetShuttleLogDir());
	if (dir == NULL) {
		if (gSystem->mkdir(GetShuttleLogDir(), kTRUE)) {
			AliError(Form("Can't open directory <%s>", GetShuttleLogDir()));
			return;
		}

	} else {
		gSystem->FreeDirectory(dir);
	}

	TString toLog = Form("%s (%d): %s - ", TTimeStamp(time(0)).AsString("s"), getpid(), detector);
	if (GetCurrentRun() >= 0) 
		toLog += Form("run %d - ", GetCurrentRun());
	toLog += Form("%s", message);

  	AliInfo(toLog.Data());
	
	// if we redirect the log output already to the file, leave here
	if (fOutputRedirected && strcmp(detector, "SHUTTLE") != 0)
		return;

  	TString fileName = GetLogFileName(detector);
	
  	gSystem->ExpandPathName(fileName);

  	ofstream logFile;
  	logFile.open(fileName, ofstream::out | ofstream::app);

  	if (!logFile.is_open()) {
    		AliError(Form("Could not open file %s", fileName.Data()));
    		return;
  	}

  	logFile << toLog.Data() << "\n";

  	logFile.close();
}

//______________________________________________________________________________________________
TString AliShuttle::GetLogFileName(const char* detector) const
{
	// 
	// returns the name of the log file for a given sub detector
	//
	
	TString fileName;
	
	if (GetCurrentRun() >= 0) 
		fileName.Form("%s/%s_%d.log", GetShuttleLogDir(), detector, GetCurrentRun());
	else
		fileName.Form("%s/%s.log", GetShuttleLogDir(), detector);

	return fileName;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::Collect(Int_t run)
{
	//
	// Collects conditions data for all UNPROCESSED run written to DAQ LogBook in case of run = -1 (default)
	// If a dedicated run is given this run is processed
	//
	// In operational mode, this is the Shuttle function triggered by the EOR signal.
	//

	if (run == -1)
		Log("SHUTTLE","Collect - Shuttle called. Collecting conditions data for unprocessed runs");
	else
		Log("SHUTTLE", Form("Collect - Shuttle called. Collecting conditions data for run %d", run));

	SetLastAction("Starting");

	TString whereClause("where shuttle_done=0");
	if (run != -1)
		whereClause += Form(" and run=%d", run);

	TObjArray shuttleLogbookEntries;
	if (!QueryShuttleLogbook(whereClause, shuttleLogbookEntries))
	{
		Log("SHUTTLE", "Collect - Can't retrieve entries from Shuttle logbook");
		return kFALSE;
	}

	if (shuttleLogbookEntries.GetEntries() == 0)
	{
		if (run == -1)
			Log("SHUTTLE","Collect - Found no UNPROCESSED runs in Shuttle logbook");
		else
			Log("SHUTTLE", Form("Collect - Run %d is already DONE "
						"or it does not exist in Shuttle logbook", run));
		return kTRUE;
	}

	for (UInt_t iDet=0; iDet<NDetectors(); iDet++)
		fFirstUnprocessed[iDet] = kTRUE;

	if (run != -1)
	{
		// query Shuttle logbook for earlier runs, check if some detectors are unprocessed,
		// flag them into fFirstUnprocessed array
		TString whereClause(Form("where shuttle_done=0 and run < %d", run));
		TObjArray tmpLogbookEntries;
		if (!QueryShuttleLogbook(whereClause, tmpLogbookEntries))
		{
			Log("SHUTTLE", "Collect - Can't retrieve entries from Shuttle logbook");
			return kFALSE;
		}

		TIter iter(&tmpLogbookEntries);
		AliShuttleLogbookEntry* anEntry = 0;
		while ((anEntry = dynamic_cast<AliShuttleLogbookEntry*> (iter.Next())))
		{
			for (UInt_t iDet=0; iDet<NDetectors(); iDet++)
			{
				if (anEntry->GetDetectorStatus(iDet) == AliShuttleLogbookEntry::kUnprocessed)
				{
					AliDebug(2, Form("Run %d: setting %s as \"not first time unprocessed\"",
							anEntry->GetRun(), GetDetName(iDet)));
					fFirstUnprocessed[iDet] = kFALSE;
				}
			}

		}

	}

	if (!RetrieveConditionsData(shuttleLogbookEntries))
	{
		Log("SHUTTLE", "Collect - Process of at least one run failed");
		return kFALSE;
	}

	Log("SHUTTLE", "Collect - Requested run(s) successfully processed");
	return kTRUE;
}

//______________________________________________________________________________________________
Bool_t AliShuttle::RetrieveConditionsData(const TObjArray& dateEntries)
{
	//
	// Retrieve conditions data for all runs that aren't processed yet
	//

	Bool_t hasError = kFALSE;

	TIter iter(&dateEntries);
	AliShuttleLogbookEntry* anEntry;

	while ((anEntry = (AliShuttleLogbookEntry*) iter.Next())){
		if (!Process(anEntry)){
			hasError = kTRUE;
		}

		// clean SHUTTLE temp directory
		TString filename = Form("%s/*.shuttle", GetShuttleTempDir());
		RemoveFile(filename.Data());
	}

	return hasError == kFALSE;
}

//______________________________________________________________________________________________
ULong_t AliShuttle::GetTimeOfLastAction() const
{
	//
	// Gets time of last action
	//

	ULong_t tmp;

	fMonitoringMutex->Lock();

	tmp = fLastActionTime;

	fMonitoringMutex->UnLock();

	return tmp;
}

//______________________________________________________________________________________________
const TString AliShuttle::GetLastAction() const
{
	//
	// returns a string description of the last action
	//

	TString tmp;

	fMonitoringMutex->Lock();
	
	tmp = fLastAction;
	
	fMonitoringMutex->UnLock();

	return tmp;
}

//______________________________________________________________________________________________
void AliShuttle::SetLastAction(const char* action)
{
	//
	// updates the monitoring variables
	//

	fMonitoringMutex->Lock();

	fLastAction = action;
	fLastActionTime = time(0);
	
	fMonitoringMutex->UnLock();
}

//______________________________________________________________________________________________
const char* AliShuttle::GetRunParameter(const char* param)
{
	//
	// returns run parameter read from DAQ logbook
	//

	if(!fLogbookEntry) {
		AliError("No logbook entry!");
		return 0;
	}

	return fLogbookEntry->GetRunParameter(param);
}

//______________________________________________________________________________________________
AliCDBEntry* AliShuttle::GetFromOCDB(const char* detector, const AliCDBPath& path)
{
	//
	// returns object from OCDB valid for current run
	//

	if (fTestMode & kErrorOCDB)
	{
		Log(detector, "GetFromOCDB - In TESTMODE - Simulating error with OCDB");
		return 0;
	}
	
	AliCDBStorage *sto = AliCDBManager::Instance()->GetStorage(fgkMainCDB);
	if (!sto)
	{
		Log(detector, "GetFromOCDB - Cannot activate main OCDB for query!");
		return 0;
	}

	return dynamic_cast<AliCDBEntry*> (sto->Get(path, GetCurrentRun()));
}

//______________________________________________________________________________________________
Bool_t AliShuttle::SendMail()
{
	//
	// sends a mail to the subdetector expert in case of preprocessor error
	//
	
	if (fTestMode != kNone)
		return kTRUE;

	void* dir = gSystem->OpenDirectory(GetShuttleLogDir());
	if (dir == NULL)
	{
		if (gSystem->mkdir(GetShuttleLogDir(), kTRUE))
		{
			AliError(Form("Can't open directory <%s>", GetShuttleLogDir()));
			return kFALSE;
		}

	} else {
		gSystem->FreeDirectory(dir);
	}

  	TString bodyFileName;
  	bodyFileName.Form("%s/mail.body", GetShuttleLogDir());
  	gSystem->ExpandPathName(bodyFileName);

  	ofstream mailBody;
  	mailBody.open(bodyFileName, ofstream::out);

  	if (!mailBody.is_open())
	{
    		AliError(Form("Could not open mail body file %s", bodyFileName.Data()));
    		return kFALSE;
  	}

	TString to="";
	TIter iterExperts(fConfig->GetResponsibles(fCurrentDetector));
	TObjString *anExpert=0;
	while ((anExpert = (TObjString*) iterExperts.Next()))
	{
		to += Form("%s,", anExpert->GetName());
	}
	to.Remove(to.Length()-1);
	AliDebug(2, Form("to: %s",to.Data()));

	if (to.IsNull()) {
		AliInfo("List of detector responsibles not yet set!");
		return kFALSE;
	}

	TString cc="alberto.colla@cern.ch";

	TString subject = Form("%s Shuttle preprocessor error in run %d !",
				fCurrentDetector.Data(), GetCurrentRun());
	AliDebug(2, Form("subject: %s", subject.Data()));

	TString body = Form("Dear %s expert(s), \n\n", fCurrentDetector.Data());
	body += Form("SHUTTLE just detected that your preprocessor "
			"exited with ERROR state in run %d!!\n\n", GetCurrentRun());
	body += Form("Please check %s status on the web page asap!\n\n", fCurrentDetector.Data());
	body += Form("The last 10 lines of %s log file are following:\n\n");

	AliDebug(2, Form("Body begin: %s", body.Data()));

	mailBody << body.Data();
  	mailBody.close();
  	mailBody.open(bodyFileName, ofstream::out | ofstream::app);

	TString logFileName = Form("%s/%s_%d.log", GetShuttleLogDir(), fCurrentDetector.Data(), GetCurrentRun());
	TString tailCommand = Form("tail -n 10 %s >> %s", logFileName.Data(), bodyFileName.Data());
	if (gSystem->Exec(tailCommand.Data()))
	{
		mailBody << Form("%s log file not found ...\n\n", fCurrentDetector.Data());
	}

	TString endBody = Form("------------------------------------------------------\n\n");
	endBody += Form("In case of problems please contact the SHUTTLE core team.\n\n");
	endBody += "Please do not answer this message directly, it is automatically generated.\n\n";
	endBody += "Sincerely yours,\n\n \t\t\tthe SHUTTLE\n";

	AliDebug(2, Form("Body end: %s", endBody.Data()));

	mailBody << endBody.Data();

  	mailBody.close();

	// send mail!
	TString mailCommand = Form("mail -s \"%s\" -c %s %s < %s",
						subject.Data(),
						cc.Data(),
						to.Data(),
						bodyFileName.Data());
	AliDebug(2, Form("mail command: %s", mailCommand.Data()));

	Bool_t result = gSystem->Exec(mailCommand.Data());

	return result == 0;
}

//______________________________________________________________________________________________
const char* AliShuttle::GetRunType()
{
	//
	// returns run type read from "run type" logbook
	//

	if(!fLogbookEntry) {
		AliError("No logbook entry!");
		return 0;
	}

	return fLogbookEntry->GetRunType();
}

//______________________________________________________________________________________________
void AliShuttle::SetShuttleTempDir(const char* tmpDir)
{
	//
	// sets Shuttle temp directory
	//

	fgkShuttleTempDir = gSystem->ExpandPathName(tmpDir);
}

//______________________________________________________________________________________________
void AliShuttle::SetShuttleLogDir(const char* logDir)
{
	//
	// sets Shuttle log directory
	//

	fgkShuttleLogDir = gSystem->ExpandPathName(logDir);
}