TreeMod/src/Selector.cc

// $Id: Selector.cc,v 1.5 2008/09/28 02:37:31 loizides Exp $

#include "MitAna/TreeMod/interface/Selector.h"
#include "MitAna/DataTree/interface/Names.h"
#include "MitAna/TreeMod/interface/OutputMod.h"
#include <TProcessID.h>
#include <TFile.h>
#include <TTree.h>

using namespace mithep;

ClassImp(mithep::Selector)

//--------------------------------------------------------------------------------------------------
Selector::Selector() :
  fDoRunInfo(kTRUE),
  fEvtHdrName(Names::gkEvtHeaderBrn),
  fRunTreeName(Names::gkRunTreeName),
  fRunInfoName(Names::gkRunInfoBrn),
  fAllEvtHdrBrn(Names::gkAllEvtHeaderBrn),
  fLATreeName(Names::gkLATreeName),
  fLAHdrName(Names::gkLAHeaderBrn),
  fAllEvtTreeName(Names::gkAllEvtTreeName),
  fRunTree(0),
  fEventHeader(0),
  fRunInfo(0),
  fLATree(0),
  fLAHeader(0),
  fCurRunNum(UInt_t(-1))
{
  // Constructor.
}

//--------------------------------------------------------------------------------------------------
Selector::~Selector()
{
  // Destructor.

  fRunTree = 0;
  fEventHeader = 0;
  fRunInfo = 0;
  fLATree = 0;
  fLAHeader = 0;
  fCurRunNum = UInt_t(-1);
}

//--------------------------------------------------------------------------------------------------
Bool_t Selector::BeginRun()
{
  // Determines whether we are at beginning of a new run.

  if (!fDoRunInfo) 
    return kFALSE;

  LoadBranch(fEvtHdrName);
  if (!fEventHeader) 
    return kFALSE;

  if (ConsistentRunNum())
    return kFALSE;

  UpdateRunInfo();
  return ValidRunNum();
}

//--------------------------------------------------------------------------------------------------
Bool_t Selector::EndRun()
{
  // Determines whether we are at the end of a run. Also, do treat special case of output module 
  // here so it in any case can process the event.
  
  if (fOutputMod && (IsAModAborted() || IsEventAborted())) {
    fOutputMod->ProcessAll();
  } 

  if (!fDoRunInfo) 
    return kFALSE;

  if (!ValidRunNum())
    return kFALSE;

  // determine if run will end
  if (fCurEvt+1==fTree->GetTree()->GetEntries())
    return kTRUE; // we are at last entry in current file

  fLAHeader=0;
  Int_t ret = fLATree->GetEvent(fCurEvt);
  if (ret<0 || fLAHeader==0) {
    Error("EndRun", "Could not get entry lookahead entry for next event,"
                    " assuming end of run %ld reached!", fCurRunNum);
    return kTRUE;
  }

  return (fLAHeader->RunNum()!=fCurRunNum);
}

//--------------------------------------------------------------------------------------------------
Bool_t Selector::Notify()
{
  // The Notify() function is called when a new file is opened. 
  // Here, we check for a new run info tree. 

  if (!GetCurrentFile()) 
    return kTRUE;

  if (fDoRunInfo) 
    UpdateRunInfoTree();

  return TAMSelector::Notify();
}

//--------------------------------------------------------------------------------------------------
void Selector::SlaveBegin(TTree *tree)
{
  // The SlaveBegin() function is called after the Begin() function and can be used to setup
  // analysis on the slaves. Here, we request the event header branch.

  if (fDoRunInfo) {
    ReqBranch(fEvtHdrName.Data(), fEventHeader);
  }

  TAMSelector::SlaveBegin(tree);
}

//--------------------------------------------------------------------------------------------------
void Selector::UpdateRunInfo() 
{
  // Update the run info to be consistent with the information from the event header.

  fRunInfo   = 0;

  if (!fRunTree) 
    return;

  Int_t ret = fRunTree->GetEvent(fEventHeader->RunEntry());
  if (ret<0 || fRunInfo==0) {
    Error("UpdateRunInfo", "Error updating run info for run %ld, entry %ld, return value %d", 
          fEventHeader->RunNum(), fEventHeader->RunEntry(), ret);
    return;
  }

  fCurRunNum = fEventHeader->RunNum();
  if (!ValidRunInfo()) {
    Error("UpdateRunInfo", "Error updating run info, run values do not match %d %d", 
          fCurRunNum, fRunInfo->RunNum());
    return;
  }
}

//--------------------------------------------------------------------------------------------------
void Selector::UpdateRunInfoTree() 
{
  // Get the run info tree from current file and set our branches.

  // first erase previous entries
  fRunTree   = 0;
  fRunInfo   = 0;
  fCurRunNum = UInt_t(-1);
  fLATree    = 0;
  fLAHeader  = 0;

  // get current file and retrieve trees
  TFile *f = GetCurrentFile();
  if (!f) {
    Error("UpdateRunInfoTree", "Ptr to current file is null");
    return;
  }

  // run info tree
  fRunTree = dynamic_cast<TTree*>(f->Get(fRunTreeName));
  if (!fRunTree) {
    Fatal("UpdateRunInfoTree", "Can not find run info tree with name %s", fRunTreeName.Data());
  }

  // set branches 
  if (fRunTree->GetBranch(fRunInfoName)) {
    fRunTree->SetBranchAddress(fRunInfoName, &fRunInfo);
  } else {
    Fatal("UpdateRunInfoTree", "Can not find run info branch with name %s", fRunInfoName.Data());
  }

  // look-ahead tree
  fLATree = dynamic_cast<TTree*>(f->Get(fLATreeName));
  if (!fLATree) {
    Fatal("UpdateRunInfoTree", "Can not find look-ahead tree with name %s", fLATreeName.Data());
  }

  // set branches 
  if (fLATree->GetBranch(fLAHdrName)) {
    fLATree->SetBranchAddress(fLAHdrName, &fLAHeader);
  } else {
    Fatal("UpdateRunInfoTree", "Can not find look-ahead branch with name %s", fLAHdrName.Data());
  }
}
Revision:	1.6
Committed:	Wed Dec 3 17:42:37 2008 UTC (16 years, 5 months ago) by loizides
Content type:	text/plain
Branch:	MAIN
Changes since 1.5:	+11 -4 lines
Log Message:	Added hook for output module to be called even if events are skipped.
#	User	Rev	Content
1	loizides	1.6	// $Id: Selector.cc,v 1.5 2008/09/28 02:37:31 loizides Exp $
2	loizides	1.1
3			#include "MitAna/TreeMod/interface/Selector.h"
4	loizides	1.2	#include "MitAna/DataTree/interface/Names.h"
5	loizides	1.6	#include "MitAna/TreeMod/interface/OutputMod.h"
6	loizides	1.2	#include <TProcessID.h>
7			#include <TFile.h>
8			#include <TTree.h>
9
10	loizides	1.1	using namespace mithep;
11
12			ClassImp(mithep::Selector)
13
14	loizides	1.4	//--------------------------------------------------------------------------------------------------
15	loizides	1.2	Selector::Selector() :
16			fDoRunInfo(kTRUE),
17	loizides	1.5	fEvtHdrName(Names::gkEvtHeaderBrn),
18			fRunTreeName(Names::gkRunTreeName),
19			fRunInfoName(Names::gkRunInfoBrn),
20	loizides	1.6	fAllEvtHdrBrn(Names::gkAllEvtHeaderBrn),
21	loizides	1.5	fLATreeName(Names::gkLATreeName),
22			fLAHdrName(Names::gkLAHeaderBrn),
23	loizides	1.6	fAllEvtTreeName(Names::gkAllEvtTreeName),
24	loizides	1.2	fRunTree(0),
25			fEventHeader(0),
26			fRunInfo(0),
27			fLATree(0),
28	loizides	1.3	fLAHeader(0),
29			fCurRunNum(UInt_t(-1))
30	loizides	1.1	{
31	loizides	1.5	// Constructor.
32	loizides	1.1	}
33
34	loizides	1.4	//--------------------------------------------------------------------------------------------------
35	loizides	1.1	Selector::~Selector()
36			{
37	loizides	1.5	// Destructor.
38
39			fRunTree = 0;
40			fEventHeader = 0;
41			fRunInfo = 0;
42			fLATree = 0;
43			fLAHeader = 0;
44			fCurRunNum = UInt_t(-1);
45	loizides	1.1	}
46	loizides	1.2
47	loizides	1.4	//--------------------------------------------------------------------------------------------------
48	loizides	1.2	Bool_t Selector::BeginRun()
49			{
50			// Determines whether we are at beginning of a new run.
51
52			if (!fDoRunInfo)
53			return kFALSE;
54
55	loizides	1.5	LoadBranch(fEvtHdrName);
56	loizides	1.2	if (!fEventHeader)
57			return kFALSE;
58
59			if (ConsistentRunNum())
60			return kFALSE;
61
62			UpdateRunInfo();
63			return ValidRunNum();
64			}
65
66	loizides	1.4	//--------------------------------------------------------------------------------------------------
67	loizides	1.2	Bool_t Selector::EndRun()
68			{
69	loizides	1.6	// Determines whether we are at the end of a run. Also, do treat special case of output module
70			// here so it in any case can process the event.
71
72			if (fOutputMod && (IsAModAborted() \|\| IsEventAborted())) {
73			fOutputMod->ProcessAll();
74			}
75	loizides	1.2
76			if (!fDoRunInfo)
77			return kFALSE;
78
79			if (!ValidRunNum())
80			return kFALSE;
81
82			// determine if run will end
83			if (fCurEvt+1==fTree->GetTree()->GetEntries())
84			return kTRUE; // we are at last entry in current file
85
86			fLAHeader=0;
87			Int_t ret = fLATree->GetEvent(fCurEvt);
88			if (ret<0 \|\| fLAHeader==0) {
89			Error("EndRun", "Could not get entry lookahead entry for next event,"
90			" assuming end of run %ld reached!", fCurRunNum);
91			return kTRUE;
92			}
93
94			return (fLAHeader->RunNum()!=fCurRunNum);
95			}
96
97	loizides	1.4	//--------------------------------------------------------------------------------------------------
98	loizides	1.2	Bool_t Selector::Notify()
99			{
100	loizides	1.5	// The Notify() function is called when a new file is opened.
101			// Here, we check for a new run info tree.
102	loizides	1.2
103			if (!GetCurrentFile())
104			return kTRUE;
105
106			if (fDoRunInfo)
107			UpdateRunInfoTree();
108
109			return TAMSelector::Notify();
110			}
111
112	loizides	1.4	//--------------------------------------------------------------------------------------------------
113	loizides	1.6	void Selector::SlaveBegin(TTree *tree)
114	loizides	1.2	{
115			// The SlaveBegin() function is called after the Begin() function and can be used to setup
116			// analysis on the slaves. Here, we request the event header branch.
117
118			if (fDoRunInfo) {
119	loizides	1.5	ReqBranch(fEvtHdrName.Data(), fEventHeader);
120	loizides	1.2	}
121
122			TAMSelector::SlaveBegin(tree);
123			}
124
125	loizides	1.4	//--------------------------------------------------------------------------------------------------
126	loizides	1.2	void Selector::UpdateRunInfo()
127			{
128			// Update the run info to be consistent with the information from the event header.
129
130			fRunInfo = 0;
131
132			if (!fRunTree)
133			return;
134
135			Int_t ret = fRunTree->GetEvent(fEventHeader->RunEntry());
136			if (ret<0 \|\| fRunInfo==0) {
137			Error("UpdateRunInfo", "Error updating run info for run %ld, entry %ld, return value %d",
138			fEventHeader->RunNum(), fEventHeader->RunEntry(), ret);
139			return;
140			}
141
142			fCurRunNum = fEventHeader->RunNum();
143			if (!ValidRunInfo()) {
144			Error("UpdateRunInfo", "Error updating run info, run values do not match %d %d",
145			fCurRunNum, fRunInfo->RunNum());
146			return;
147			}
148			}
149
150	loizides	1.4	//--------------------------------------------------------------------------------------------------
151	loizides	1.2	void Selector::UpdateRunInfoTree()
152			{
153			// Get the run info tree from current file and set our branches.
154
155			// first erase previous entries
156			fRunTree = 0;
157			fRunInfo = 0;
158			fCurRunNum = UInt_t(-1);
159			fLATree = 0;
160			fLAHeader = 0;
161
162			// get current file and retrieve trees
163			TFile *f = GetCurrentFile();
164			if (!f) {
165			Error("UpdateRunInfoTree", "Ptr to current file is null");
166			return;
167			}
168
169			// run info tree
170	loizides	1.5	fRunTree = dynamic_cast<TTree*>(f->Get(fRunTreeName));
171	loizides	1.2	if (!fRunTree) {
172	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find run info tree with name %s", fRunTreeName.Data());
173	loizides	1.2	}
174
175			// set branches
176	loizides	1.5	if (fRunTree->GetBranch(fRunInfoName)) {
177			fRunTree->SetBranchAddress(fRunInfoName, &fRunInfo);
178	loizides	1.2	} else {
179	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find run info branch with name %s", fRunInfoName.Data());
180	loizides	1.2	}
181
182			// look-ahead tree
183	loizides	1.5	fLATree = dynamic_cast<TTree*>(f->Get(fLATreeName));
184	loizides	1.2	if (!fLATree) {
185	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find look-ahead tree with name %s", fLATreeName.Data());
186	loizides	1.2	}
187
188			// set branches
189	loizides	1.5	if (fLATree->GetBranch(fLAHdrName)) {
190			fLATree->SetBranchAddress(fLAHdrName, &fLAHeader);
191	loizides	1.2	} else {
192	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find look-ahead branch with name %s", fLAHdrName.Data());
193	loizides	1.2	}
194			}