// To connect a slot to a data container, the data types declared by both must
// match.
//
-// The method Init will be called once per session at the moment when the data is
-// available at all input slots.
-// The method Init() has to be overloaded by the derived class in order to:
-// 1. Define objects that should be created only once per session (e.g. output
-// histograms)
-// 2. Set the branch address or connect to a branch address in case the input
-// slots are connected to trees.
-//
+// The method ConnectInputData() has to be overloaded by the derived class in order to
+// set the branch address or connect to a branch address in case the input
+// slots are connected to trees.
// Example:
-// MyAnalysisTask::Init(Option_t *)
+// MyAnalysisTask::ConnectInputData(Option_t *)
// {
-// if (!fHist1) fHist1 = new TH1F("h1", ....);
-// if (!fHist2) fHist2 = new TH1F("h2", ....);
-// fESD = GetBranchAddress(islot=0, "ESD");
-// if (!fESD) SetBranchAddress(islot=0, "ESD", &fESD);
+// // One should first check if the branch address was taken by some other task
+// char ** address = (char **)GetBranchAddress(0, "ESD");
+// if (address) {
+// fESD = (AliESD*)(*address);
+// } else {
+// fESD = new AliESD();
+// SetBranchAddress(0, "ESD", &fESD);
+// }
+// }
+//
+// The method CreateOutputObjects() has to be overloaded an will contain the
+// objects that should be created only once per session (e.g. output
+// histograms)
+//
+// void MyAnalysisTask::CreateOutputObjects()
+//{
+ // create histograms
+// fhPt = new TH1F("fhPt","This is the Pt distribution",15,0.1,3.1);
+// fhPt->SetStats(kTRUE);
+// fhPt->GetXaxis()->SetTitle("P_{T} [GeV]");
+// fhPt->GetYaxis()->SetTitle("#frac{dN}{dP_{T}}");
+// fhPt->GetXaxis()->SetTitleColor(1);
+// fhPt->SetMarkerStyle(kFullCircle);
// }
//
// The method Terminate() will be called by the framework once at the end of
-// data processing. Overload this if needed.
+// data processing. Overload this if needed. DO NOT ASSUME that the pointers
+// to histograms defined in CreateOutputObjects() are valid, since this is
+// not true in case of PROOF. Restore the pointer values like:
//
-//==============================================================================
+//void MyAnalysisTask::Terminate(Option_t *)
+//{
+// fhPt = (TH1F*)GetOutputData(0);
+// ...
+//}
-#include "Riostream.h"
+//
+//==============================================================================
-#include "TClass.h"
+#include <Riostream.h>
+#include <TDirectory.h>
+#include <TClass.h>
-//#include "AliLog.h"
#include "AliAnalysisTask.h"
#include "AliAnalysisDataSlot.h"
#include "AliAnalysisDataContainer.h"
AliAnalysisTask::~AliAnalysisTask()
{
// Dtor.
+ if (fTasks) fTasks->Clear();
if (fInputs) {fInputs->Delete(); delete fInputs;}
if (fOutputs) {fOutputs->Delete(); delete fOutputs;}
}
for (i=0; i<fNinputs; i++) {
slot = (AliAnalysisDataSlot*)fInputs->At(i);
if (!slot) {
- cout<<"Input slot "<<i<<" of task "<<GetName()<<" not defined !"<<endl;
- //AliError(Form("Input slot %i of task %s not defined !",i,GetName()));
+ Error("AreSlotsConnected", "Input slot %d of task %s not defined !",i,GetName());
return kFALSE;
}
if (!slot->IsConnected()) return kFALSE;
for (i=0; i<fNoutputs; i++) {
slot = (AliAnalysisDataSlot*)fOutputs->At(i);
if (!slot) {
- cout<<"Output slot "<<i<<" of task "<<GetName()<<" not defined !"<<endl;
- //AliError(Form("Output slot %i of task %s not defined !",i,GetName()));
+ Error("AreSlotsConnected", "Output slot %d of task %s not defined !",i,GetName());
return kFALSE;
}
if (!slot->IsConnected()) return kFALSE;
SetActive(kTRUE);
if (fInitialized) return;
TDirectory *cursav = gDirectory;
- Init();
+ ConnectInputData();
if (cursav) cursav->cd();
fInitialized = kTRUE;
}
// Connect an input slot to a data container.
AliAnalysisDataSlot *input = GetInputSlot(islot);
if (!input) {
- cout<<"Input slot "<<islot<<" not defined for analysis task "<<GetName()<<endl;
- //AliError(Form("Input slot %i not defined for analysis task %s", islot, GetName()));
+ Error("ConnectInput","Input slot %i not defined for analysis task %s", islot, GetName());
return kFALSE;
}
// Check type matching
if (!input->GetType()->InheritsFrom(cont->GetType())) {
- cout<<"Data type "<<input->GetType()->GetName()<<" for input "<<islot<<" of task "<<GetName()<<" not matching container "<<cont->GetName()<<" of type "<<cont->GetType()->GetName()<<endl;
- //AliError(Form("Data type %s for input %i of task %s not matching container %s of type %s",input->GetType()->GetName(), islot, GetName(), cont->GetName(), cont->GetType()->GetName()));
+ Error("ConnectInput","Data type %s for input %i of task %s not matching container %s of type %s",input->GetType()->GetName(), islot, GetName(), cont->GetName(), cont->GetType()->GetName());
return kFALSE;
}
// Connect the slot to the container as input
// Connect an output slot to a data container.
AliAnalysisDataSlot *output = GetOutputSlot(islot);
if (!output) {
- cout<<"Output slot "<<islot<<" not defined for analysis task "<<GetName()<<endl;
- //AliError(Form("Output slot %i not defined for analysis task %s", islot, GetName()));
+ Error("ConnectOutput","Output slot %i not defined for analysis task %s", islot, GetName());
return kFALSE;
}
// Check type matching
if (!output->GetType()->InheritsFrom(cont->GetType())) {
- cout<<"Data type "<<output->GetType()->GetName()<<" for output "<<islot<<" of task "<<GetName()<<" not matching container "<<cont->GetName()<<" of type "<<cont->GetType()->GetName()<<endl;
- //AliError(Form("Data type %s for output %i of task %s not matching container %s of type %s",output->GetType()->GetName(), islot, GetName(), cont->GetName(), cont->GetType()->GetName()));
+ Error("ConnectOutput","Data type %s for output %i of task %s not matching container %s of type %s",output->GetType()->GetName(), islot, GetName(), cont->GetName(), cont->GetType()->GetName());
return kFALSE;
}
// Connect the slot to the container as output
void AliAnalysisTask::DefineOutput(Int_t islot, TClass *type)
{
// Define an output slot and its type.
- if (islot<0) {
- cout<<"Cannot define negative output slot number for task "<<GetName()<<endl;
- //AliError(Form("Cannot define negative output slot number for task %s", GetName()));
- return;
- }
AliAnalysisDataSlot *output = new AliAnalysisDataSlot(type, this);
if (fNoutputs<islot+1) {
fNoutputs = islot+1;
// Retreive type of a given input slot.
AliAnalysisDataSlot *input = GetInputSlot(islot);
if (!input) {
- cout<<"Input slot "<<islot<<" not defined for analysis task "<<GetName()<<endl;
- //AliError(Form("Input slot %i not defined for analysis task %s", islot, GetName()));
+ Error("GetInputType","Input slot %d not defined for analysis task %s", islot, GetName());
return NULL;
}
return (input->GetType());
// Retreive type of a given output slot.
AliAnalysisDataSlot *output = GetOutputSlot(islot);
if (!output) {
- cout<<"Output slot "<<islot<<" not defined for analysis task "<<GetName()<<endl;
- //AliError(Form("Output slot %i not defined for analysis task %s", islot, GetName()));
+ Error("GetOutputType","Output slot %d not defined for analysis task %s", islot, GetName());
return NULL;
}
return (output->GetType());
// the object has to be statically cast to the appropriate type.
AliAnalysisDataSlot *input = GetInputSlot(islot);
if (!input) {
- cout<<"Input slot "<<islot<<" not defined for analysis task "<<GetName()<<endl;
- //AliError(Form("Input slot %i not defined for analysis task %s", islot, GetName()));
+ Error("GetInputData","Input slot %d not defined for analysis task %s", islot, GetName());
return NULL;
}
return (input->GetData());
}
+//______________________________________________________________________________
+TObject *AliAnalysisTask::GetOutputData(Int_t islot) const
+{
+// Retreive output data for a slot. Normally called in UserTask::Terminate to
+// get a valid pointer to data even in case of Proof.
+ AliAnalysisDataSlot *output = GetOutputSlot(islot);
+ if (!output) {
+ Error("GetOutputData","Input slot %d not defined for analysis task %s", islot, GetName());
+ return NULL;
+ }
+ return (output->GetData());
+}
+
//______________________________________________________________________________
char *AliAnalysisTask::GetBranchAddress(Int_t islot, const char *branch) const
{
}
//______________________________________________________________________________
-void AliAnalysisTask::Init(Option_t *)
+void AliAnalysisTask::ConnectInputData(Option_t *)
{
-// Branch address initialization.
+// Overload and connect your branches here.
}
//______________________________________________________________________________
-void AliAnalysisTask::Terminate(Option_t *)
+void AliAnalysisTask::CreateOutputObjects()
{
-// Method called by the framework at the end of data processing.
+// Overload and create your output objects here.
}
//______________________________________________________________________________
-void AliAnalysisTask::OpenFile(Int_t iout, const char *name, Option_t *option) const
+void AliAnalysisTask::Terminate(Option_t *)
{
-// Set data at output iout to be written in the specified file.
- GetOutputSlot(iout)->GetContainer()->OpenFile(name, option);
-}
+// Method called by the framework at the end of data processing.
+}
//______________________________________________________________________________
Bool_t AliAnalysisTask::PostData(Int_t iout, TObject *data, Option_t *option)
fPublishedData = 0;
AliAnalysisDataSlot *output = GetOutputSlot(iout);
if (!output) {
- cout<<"Output slot "<<iout<<" not defined for analysis task "<<GetName()<<endl;
- //AliError(Form("Output slot %i not defined for analysis task %s", iout, GetName()));
+ Error("PostData","Output slot %i not defined for analysis task %s", iout, GetName());
return kFALSE;
}
if (!output->IsConnected()) {
- cout<<"Output slot "<<iout<<" of analysis task "<<GetName()<<" not connected to any data container"<<endl;
- //AliError(Form("Output slot %i of analysis task %s not connected to any data container", iout, GetName()));
+ Error("PostData","Output slot %i of analysis task %s not connected to any data container", iout, GetName());
return kFALSE;
}
if (!fOutputReady) {
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff