3 #include "EventAlieve.h"
6 #include <AliRunLoader.h>
8 #include <AliESDfriend.h>
17 using namespace Alieve;
19 //______________________________________________________________________
25 Event* Alieve::gEvent = 0;
27 Bool_t Alieve::Event::fgUseRunLoader = true;
28 Bool_t Alieve::Event::fgUseESDTree = true;
30 void Event::Initialize(Bool_t use_runloader, Bool_t use_esd)
32 static const Exc_t eH("Event::Initialize ");
34 fgUseRunLoader = use_runloader;
35 fgUseESDTree = use_esd;
38 if(fgUseRunLoader == false && fgUseESDTree == false)
39 throw(eH + "should use at least one data source.");
42 AssertMacro("loadlibs.C");
44 else if(fgUseESDTree) {
45 gSystem->Load("libESD.so");
50 /**************************************************************************/
64 EventBase(), fEventId(0)
69 Event::Event(TString path, Int_t ev) :
70 EventBase("AliEVE Event"),
71 fPath(path), fEventId(ev)
77 /**************************************************************************/
81 static const Exc_t eH("Event::Open ");
83 gSystem->ExpandPathName(fPath);
85 fPath = Form("%s/%s", gSystem->WorkingDirectory(), fPath.Data());
88 TString ga_path(Form("%s/galice.root", fPath.Data()));
89 if(gSystem->AccessPathName(ga_path, kReadPermission))
90 throw(eH + "can not read '" + ga_path + "'.");
91 fRunLoader = AliRunLoader::Open(ga_path);
93 throw(eH + "failed opening ALICE run loader from '" + ga_path + "'.");
95 TString alice_path = fPath + "/";
96 fRunLoader->SetDirName(alice_path);
98 if(fRunLoader->LoadgAlice() != 0)
99 throw(eH + "failed loading gAlice.");
101 if(fRunLoader->GetEvent(fEventId) != 0)
102 throw(eH + "failed getting required event.");
106 TString p(Form("%s/AliESDs.root", fPath.Data()));
107 if(gSystem->AccessPathName(p, kReadPermission))
108 throw(eH + "can not read '" + p + "'.");
109 fESDFile = new TFile(p);
110 if(fESDFile->IsZombie()) {
111 delete fESDFile; fESDFile = 0;
112 throw(eH + "failed opening ALICE ESD from '" + p + "'.");
115 fESDTree = (TTree*) fESDFile->Get("esdTree");
117 throw(eH + "failed getting the esdTree.");
118 fESDTree->SetBranchAddress("ESD", &fESD);
119 if(fESDTree->GetEntry(fEventId) <= 0)
120 throw(eH + "failed getting required event from ESD.");
122 // Check if ESDfriends exists and load it
123 p = Form("%s/AliESDfriends.root", fPath.Data());
124 if(gSystem->AccessPathName(p, kReadPermission) == kFALSE) {
125 fESDfriendFile = new TFile(p);
126 if(fESDfriendFile->IsZombie()) {
127 delete fESDfriendFile; fESDfriendFile = 0;
128 throw(eH + "failed opening ALICE ESDfriend from '" + p + "'.");
131 fESDfriendTree = (TTree*) fESDfriendFile->Get("esdFriendTree");
132 if(fESDfriendTree == 0)
133 throw(eH + "failed getting the esdFriendTree.");
134 fESDfriendTree->SetBranchAddress("ESDfriend", &fESDfriend);
135 if(fESDfriendTree->GetEntry(fEventId) <= 0)
136 throw(eH + "failed getting required event from ESDfriend.");
138 fESD->SetESDfriend(fESDfriend);
142 SetName(Form("Event %d", fEventId));
146 void Event::GotoEvent(Int_t event)
148 static const Exc_t eH("Event::GotoEvent ");
150 if(fgUseRunLoader && fRunLoader == 0)
151 throw(eH + "RunLoader not initialized.");
153 if(fgUseESDTree && fESDTree == 0)
154 throw(eH + "ESDTree not initialized.");
158 maxEvent = fRunLoader->GetNumberOfEvents() - 1;
159 else if(fgUseESDTree)
160 maxEvent = fESDTree->GetEntries() - 1;
162 if(event < 0 || event > maxEvent)
163 throw(eH + Form("event %d not present, available range [%d, %d].",
164 event, 0, maxEvent));
168 SetName(Form("Event %d", fEventId));
172 if(fRunLoader->GetEvent(fEventId) != 0)
173 throw(eH + "failed getting required event.");
177 if(fESDTree->GetEntry(fEventId) <= 0)
178 throw(eH + "failed getting required event from ESD.");
180 if(fESDfriendTree != 0) {
181 if(fESDfriendTree->GetEntry(fEventId) <= 0)
182 throw(eH + "failed getting required event from ESDfriend.");
184 fESD->SetESDfriend(fESDfriend);
194 /**************************************************************************/
195 /**************************************************************************/
197 // Static convenience functions.
199 AliRunLoader* Event::AssertRunLoader()
201 static const Exc_t eH("Event::AssertRunLoader ");
204 throw(eH + "ALICE event not ready.");
205 if(gEvent->fRunLoader == 0)
206 throw(eH + "AliRunLoader not initialised.");
207 return gEvent->fRunLoader;
210 AliESD* Event::AssertESD()
212 static const Exc_t eH("Event::AssertESD ");
215 throw(eH + "ALICE event not ready.");
216 if(gEvent->fESD == 0)
217 throw(eH + "AliESD not initialised.");
221 AliESDfriend* Event::AssertESDfriend()
223 static const Exc_t eH("Event::AssertESDfriend ");
226 throw(eH + "ALICE event not ready.");
227 if(gEvent->fESDfriend == 0)
228 throw(eH + "AliESDfriend not initialised.");
229 return gEvent->fESDfriend;