// AliAnalysisDataContainer *cont)
// To connect a slot to a data container, the data types declared by both must
// match.
+//
+// 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::ConnectInputData(Option_t *)
+// {
+// // 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. 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 "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()
:fReady(kFALSE),
+ fInitialized(kFALSE),
fNinputs(0),
fNoutputs(0),
fOutputReady(NULL),
AliAnalysisTask::AliAnalysisTask(const char *name, const char *title)
:TTask(name,title),
fReady(kFALSE),
+ fInitialized(kFALSE),
fNinputs(0),
fNoutputs(0),
fOutputReady(NULL),
AliAnalysisTask::AliAnalysisTask(const AliAnalysisTask &task)
:TTask(task),
fReady(task.fReady),
+ fInitialized(task.fInitialized),
fNinputs(task.fNinputs),
fNoutputs(task.fNoutputs),
fOutputReady(NULL),
AliAnalysisTask::~AliAnalysisTask()
{
// Dtor.
+ if (fTasks) fTasks->Clear();
if (fInputs) {fInputs->Delete(); delete fInputs;}
if (fOutputs) {fOutputs->Delete(); delete fOutputs;}
}
if (&task == this) return *this;
TTask::operator=(task);
fReady = task.IsReady();
+ fInitialized = task.IsInitialized();
fNinputs = task.GetNinputs();
fNoutputs = task.GetNoutputs();
fInputs = new TObjArray((fNinputs)?fNinputs:2);
for (i=0; i<fNinputs; i++) {
slot = (AliAnalysisDataSlot*)fInputs->At(i);
if (!slot) {
- 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) {
- 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;
}
//______________________________________________________________________________
-void AliAnalysisTask::CheckNotify()
+void AliAnalysisTask::CheckNotify(Bool_t init)
{
// Check if data is available from all inputs. Change the status of the task
// accordingly. This method is called automatically for all tasks connected
// to a container where the data was published.
+ if (init) fInitialized = kFALSE;
for (Int_t islot=0; islot<fNinputs; islot++) {
if (!GetInputData(islot)) {
SetActive(kFALSE);
}
}
SetActive(kTRUE);
+ if (fInitialized) return;
+ TDirectory *cursav = gDirectory;
+ ConnectInputData();
+ if (cursav) cursav->cd();
+ fInitialized = kTRUE;
}
//______________________________________________________________________________
// Connect an input slot to a data container.
AliAnalysisDataSlot *input = GetInputSlot(islot);
if (!input) {
- 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())) {
- 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) {
- 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())) {
- 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) {
- 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) {
- 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) {
- 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) {
- 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
+{
+// Check if a branch with a given name from the specified input is connected
+// to some address. Call this in Init() before trying to call SetBranchAddress()
+// since the adress may be set by other task.
+ return (char *)GetInputSlot(islot)->GetBranchAddress(branch);
+}
+
+//______________________________________________________________________________
+Bool_t AliAnalysisTask::SetBranchAddress(Int_t islot, const char *branch, void *address) const
+{
+// Connect an object address to a branch of the specified input.
+ return GetInputSlot(islot)->SetBranchAddress(branch, address);
+}
+
+//______________________________________________________________________________
+void AliAnalysisTask::ConnectInputData(Option_t *)
+{
+// Overload and connect your branches here.
+}
+
+//______________________________________________________________________________
+void AliAnalysisTask::CreateOutputObjects()
+{
+// Overload and create your output objects here.
+}
+
+//______________________________________________________________________________
+void AliAnalysisTask::Terminate(Option_t *)
+{
+// 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) {
- 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()) {
- 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