TreeMod/src/Selector.cc

// $Id: Selector.cc,v 1.9 2008/12/12 16:57:42 bendavid 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>
#include <TROOT.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.

  fOutputMods.SetOwner(kFALSE);
  gROOT->GetListOfSpecials()->Add(this);
}

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

  fRunTree     = 0;
  fEventHeader = 0;
  fRunInfo     = 0;
  fLATree      = 0;
  fLAHeader    = 0;
  fCurRunNum   = UInt_t(-1);
  gROOT->GetListOfSpecials()->Remove(this);
}

//--------------------------------------------------------------------------------------------------
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 that in any case it can process the event.

  if (IsAModAborted() || IsEventAborted()) { // deal with output module if needed: Do this here,
    TIter it(fOutputMods.MakeIterator());    // avoids having to copy/rewrite large parts of
    OutputMod *o = 0;                        // TAMSelector::Process and interaction with TAModule
    while ((o=static_cast<OutputMod*>(it.Next())) != 0)
      o->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();

  //needed to force caching to occur for all files  
  fTree->GetTree()->SetCacheSize(fTree->GetCacheSize());
    
  return TAMSelector::Notify();
}

//--------------------------------------------------------------------------------------------------
void Selector::SearchOutputMods(const TAModule *mod)
{
  // Search for output module among list of modules.

  if (!mod)
    return;

  const OutputMod *o = dynamic_cast<const OutputMod*>(mod);
  if (o)
    fOutputMods.Add(const_cast<OutputMod*>(o));

  const TList *tasks = mod->GetSubModules();
  if (!tasks) 
    return;

  TIter it(tasks->MakeIterator());
  TObject *ob = 0;
  while ((ob=it.Next()) != 0) {
    TAModule *nmod = dynamic_cast<TAModule*>(ob);
    if (nmod) 
      SearchOutputMods(nmod);
  }
}

//--------------------------------------------------------------------------------------------------
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, fEventHeader);
  }

  SearchOutputMods(GetTopModule());

  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:	1.10
Committed:	Mon Mar 2 12:35:29 2009 UTC (16 years, 2 months ago) by loizides
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_008pre2, Mit_008pre1
Changes since 1.9:	+9 -6 lines
Log Message:	Expose selector to ROOT specials
#	User	Rev	Content
1	loizides	1.10	// $Id: Selector.cc,v 1.9 2008/12/12 16:57:42 bendavid 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	loizides	1.10	#include <TROOT.h>
10	loizides	1.2
11	loizides	1.1	using namespace mithep;
12
13			ClassImp(mithep::Selector)
14
15	loizides	1.4	//--------------------------------------------------------------------------------------------------
16	loizides	1.2	Selector::Selector() :
17			fDoRunInfo(kTRUE),
18	loizides	1.5	fEvtHdrName(Names::gkEvtHeaderBrn),
19			fRunTreeName(Names::gkRunTreeName),
20			fRunInfoName(Names::gkRunInfoBrn),
21	loizides	1.6	fAllEvtHdrBrn(Names::gkAllEvtHeaderBrn),
22	loizides	1.5	fLATreeName(Names::gkLATreeName),
23			fLAHdrName(Names::gkLAHeaderBrn),
24	loizides	1.6	fAllEvtTreeName(Names::gkAllEvtTreeName),
25	loizides	1.2	fRunTree(0),
26			fEventHeader(0),
27			fRunInfo(0),
28			fLATree(0),
29	loizides	1.3	fLAHeader(0),
30			fCurRunNum(UInt_t(-1))
31	loizides	1.1	{
32	loizides	1.5	// Constructor.
33	loizides	1.7
34			fOutputMods.SetOwner(kFALSE);
35	loizides	1.10	gROOT->GetListOfSpecials()->Add(this);
36	loizides	1.1	}
37
38	loizides	1.4	//--------------------------------------------------------------------------------------------------
39	loizides	1.1	Selector::~Selector()
40			{
41	loizides	1.5	// Destructor.
42
43	loizides	1.10	fRunTree = 0;
44	loizides	1.5	fEventHeader = 0;
45	loizides	1.10	fRunInfo = 0;
46			fLATree = 0;
47			fLAHeader = 0;
48			fCurRunNum = UInt_t(-1);
49			gROOT->GetListOfSpecials()->Remove(this);
50	loizides	1.1	}
51	loizides	1.2
52	loizides	1.4	//--------------------------------------------------------------------------------------------------
53	loizides	1.2	Bool_t Selector::BeginRun()
54			{
55			// Determines whether we are at beginning of a new run.
56
57			if (!fDoRunInfo)
58			return kFALSE;
59
60	loizides	1.5	LoadBranch(fEvtHdrName);
61	loizides	1.2	if (!fEventHeader)
62			return kFALSE;
63
64			if (ConsistentRunNum())
65			return kFALSE;
66
67			UpdateRunInfo();
68			return ValidRunNum();
69			}
70
71	loizides	1.4	//--------------------------------------------------------------------------------------------------
72	loizides	1.2	Bool_t Selector::EndRun()
73			{
74	loizides	1.6	// Determines whether we are at the end of a run. Also, do treat special case of output module
75	loizides	1.7	// here so that in any case it can process the event.
76
77			if (IsAModAborted() \|\| IsEventAborted()) { // deal with output module if needed: Do this here,
78			TIter it(fOutputMods.MakeIterator()); // avoids having to copy/rewrite large parts of
79			OutputMod *o = 0; // TAMSelector::Process and interaction with TAModule
80			while ((o=static_cast<OutputMod*>(it.Next())) != 0)
81			o->ProcessAll();
82			}
83	loizides	1.2
84			if (!fDoRunInfo)
85			return kFALSE;
86
87			if (!ValidRunNum())
88			return kFALSE;
89
90			// determine if run will end
91			if (fCurEvt+1==fTree->GetTree()->GetEntries())
92			return kTRUE; // we are at last entry in current file
93
94			fLAHeader=0;
95			Int_t ret = fLATree->GetEvent(fCurEvt);
96			if (ret<0 \|\| fLAHeader==0) {
97			Error("EndRun", "Could not get entry lookahead entry for next event,"
98			" assuming end of run %ld reached!", fCurRunNum);
99			return kTRUE;
100			}
101
102			return (fLAHeader->RunNum()!=fCurRunNum);
103			}
104
105	loizides	1.4	//--------------------------------------------------------------------------------------------------
106	loizides	1.2	Bool_t Selector::Notify()
107			{
108	loizides	1.5	// The Notify() function is called when a new file is opened.
109			// Here, we check for a new run info tree.
110	loizides	1.2
111			if (!GetCurrentFile())
112			return kTRUE;
113
114			if (fDoRunInfo)
115			UpdateRunInfoTree();
116
117	bendavid	1.9	//needed to force caching to occur for all files
118			fTree->GetTree()->SetCacheSize(fTree->GetCacheSize());
119
120	loizides	1.2	return TAMSelector::Notify();
121			}
122
123	loizides	1.4	//--------------------------------------------------------------------------------------------------
124	loizides	1.7	void Selector::SearchOutputMods(const TAModule *mod)
125			{
126			// Search for output module among list of modules.
127
128			if (!mod)
129			return;
130
131			const OutputMod o = dynamic_cast<const OutputMod>(mod);
132			if (o)
133			fOutputMods.Add(const_cast<OutputMod*>(o));
134
135			const TList *tasks = mod->GetSubModules();
136			if (!tasks)
137			return;
138
139			TIter it(tasks->MakeIterator());
140			TObject *ob = 0;
141			while ((ob=it.Next()) != 0) {
142			TAModule nmod = dynamic_cast<TAModule>(ob);
143			if (nmod)
144			SearchOutputMods(nmod);
145			}
146			}
147
148			//--------------------------------------------------------------------------------------------------
149	loizides	1.6	void Selector::SlaveBegin(TTree *tree)
150	loizides	1.2	{
151			// The SlaveBegin() function is called after the Begin() function and can be used to setup
152			// analysis on the slaves. Here, we request the event header branch.
153
154			if (fDoRunInfo) {
155	loizides	1.7	ReqBranch(fEvtHdrName, fEventHeader);
156	loizides	1.2	}
157
158	loizides	1.7	SearchOutputMods(GetTopModule());
159
160	loizides	1.2	TAMSelector::SlaveBegin(tree);
161			}
162
163	loizides	1.4	//--------------------------------------------------------------------------------------------------
164	loizides	1.2	void Selector::UpdateRunInfo()
165			{
166			// Update the run info to be consistent with the information from the event header.
167
168			fRunInfo = 0;
169
170			if (!fRunTree)
171			return;
172
173			Int_t ret = fRunTree->GetEvent(fEventHeader->RunEntry());
174			if (ret<0 \|\| fRunInfo==0) {
175			Error("UpdateRunInfo", "Error updating run info for run %ld, entry %ld, return value %d",
176			fEventHeader->RunNum(), fEventHeader->RunEntry(), ret);
177			return;
178			}
179
180			fCurRunNum = fEventHeader->RunNum();
181			if (!ValidRunInfo()) {
182			Error("UpdateRunInfo", "Error updating run info, run values do not match %d %d",
183			fCurRunNum, fRunInfo->RunNum());
184			return;
185			}
186			}
187
188	loizides	1.4	//--------------------------------------------------------------------------------------------------
189	loizides	1.2	void Selector::UpdateRunInfoTree()
190			{
191			// Get the run info tree from current file and set our branches.
192
193			// first erase previous entries
194			fRunTree = 0;
195			fRunInfo = 0;
196			fCurRunNum = UInt_t(-1);
197			fLATree = 0;
198			fLAHeader = 0;
199
200			// get current file and retrieve trees
201			TFile *f = GetCurrentFile();
202			if (!f) {
203			Error("UpdateRunInfoTree", "Ptr to current file is null");
204			return;
205			}
206
207			// run info tree
208	loizides	1.5	fRunTree = dynamic_cast<TTree*>(f->Get(fRunTreeName));
209	loizides	1.2	if (!fRunTree) {
210	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find run info tree with name %s", fRunTreeName.Data());
211	loizides	1.2	}
212
213			// set branches
214	loizides	1.5	if (fRunTree->GetBranch(fRunInfoName)) {
215			fRunTree->SetBranchAddress(fRunInfoName, &fRunInfo);
216	loizides	1.2	} else {
217	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find run info branch with name %s", fRunInfoName.Data());
218	loizides	1.2	}
219
220			// look-ahead tree
221	loizides	1.5	fLATree = dynamic_cast<TTree*>(f->Get(fLATreeName));
222	loizides	1.2	if (!fLATree) {
223	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find look-ahead tree with name %s", fLATreeName.Data());
224	loizides	1.2	}
225
226			// set branches
227	loizides	1.5	if (fLATree->GetBranch(fLAHdrName)) {
228			fLATree->SetBranchAddress(fLAHdrName, &fLAHeader);
229	loizides	1.2	} else {
230	loizides	1.5	Fatal("UpdateRunInfoTree", "Can not find look-ahead branch with name %s", fLAHdrName.Data());
231	loizides	1.2	}
232			}