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d3106602 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | // Author: Andrei Gheata, 31/05/2006 | |
18 | ||
19 | //============================================================================== | |
20 | // AliAnalysysDataSlot - Class representing a data slot of an analysis task. | |
21 | // An analysis slot enforces a certain data type required by the Exec() | |
22 | // method of the analysis task. The slot must be connected to a data | |
23 | // container with data of the same type. | |
24 | // | |
25 | // The class should not be directly created by users - it is created by | |
26 | // each AliAnalysisTask when defining its input/output slots using: | |
27 | // | |
28 | // AliAnalysisTask::SetInput(Int_t index, TClass *type); | |
29 | // AliAnalysisTask::SetOutput(TClass *type); | |
30 | // | |
31 | // An existing data contaner (AliAnalysisDataContainer) can be connected to the | |
32 | // input/output slots of an analysis task using: | |
33 | // | |
34 | // AliAnalysisModule::ConnectInput(AliAnalysisTask *task, Int_t islot, | |
35 | // AliAnalysisDataContainer *cont) | |
36 | // AliAnalysisModule::ConnectOutput(AliAnalysisTask *task, | |
37 | // AliAnalysisDataContainer *cont) | |
38 | // To connect a slot to a data container, the data types declared by both must | |
39 | // match. | |
40 | //============================================================================== | |
41 | ||
c52c2132 | 42 | #include <Riostream.h> |
43 | #include <TROOT.h> | |
44 | #include <TClass.h> | |
45 | #include <TTree.h> | |
521adffd | 46 | #include <TLeaf.h> |
d3106602 | 47 | |
48 | #include "AliAnalysisDataSlot.h" | |
49 | #include "AliAnalysisTask.h" | |
50 | #include "AliAnalysisDataContainer.h" | |
51 | ||
c82bb898 | 52 | using std::endl; |
53 | using std::cout; | |
d3106602 | 54 | ClassImp(AliAnalysisDataSlot) |
55 | ||
c52c2132 | 56 | //______________________________________________________________________________ |
57 | AliAnalysisDataSlot::AliAnalysisDataSlot(TClass *type, AliAnalysisTask *task) | |
58 | :TNamed(), | |
59 | fType(type), | |
60 | fParent(task), | |
61 | fContainer(NULL) | |
62 | { | |
63 | // Default constructor. | |
64 | SetTitle(fType->GetName()); | |
65 | } | |
66 | ||
67 | //______________________________________________________________________________ | |
68 | AliAnalysisDataSlot::AliAnalysisDataSlot(const AliAnalysisDataSlot &slot) | |
69 | :TNamed(slot), | |
70 | fType(NULL), | |
71 | fParent(slot.fParent), | |
72 | fContainer(slot.fContainer) | |
73 | { | |
74 | // Copy ctor. | |
75 | GetType(); | |
76 | } | |
77 | ||
37a26056 | 78 | //______________________________________________________________________________ |
79 | AliAnalysisDataSlot& AliAnalysisDataSlot::operator=(const AliAnalysisDataSlot &slot) | |
80 | { | |
81 | // Assignment | |
82 | if (&slot == this) return *this; | |
c52c2132 | 83 | TNamed::operator=(slot); |
84 | GetType(); | |
37a26056 | 85 | fParent = slot.fParent; |
86 | fContainer = slot.fContainer; | |
87 | return *this; | |
88 | } | |
89 | ||
d3106602 | 90 | //______________________________________________________________________________ |
91 | Bool_t AliAnalysisDataSlot::ConnectContainer(AliAnalysisDataContainer *cont) | |
92 | { | |
93 | // Connect the data slot with a given container. The operation will succeed only | |
94 | // if the type defined by the slot inherits from the type enforced by the container. | |
95 | // The error message in case of failure is posted by the caller. | |
c52c2132 | 96 | if (!cont || !GetType()) return kFALSE; |
d3106602 | 97 | if (!fType->InheritsFrom(cont->GetType())) { |
c52c2132 | 98 | cout<<"Data slot of type "<<GetTitle()<<" of task "<<fParent->GetName()<<" cannot be connected to data container "<<cont->GetName()<<" of type "<<cont->GetTitle()<<endl; |
11026a80 | 99 | //AliError(Form("Data slot of type %s of task %s cannot be connected to data container %s of type %s", fType->GetName(), fParent->GetName(), cont->GetName(), cont->GetType()->GetName())); |
d3106602 | 100 | return kFALSE; |
101 | } | |
102 | fContainer = cont; | |
103 | return kTRUE; | |
104 | } | |
105 | ||
c52c2132 | 106 | //______________________________________________________________________________ |
107 | TClass *AliAnalysisDataSlot::GetType() const | |
108 | { | |
109 | // Get class type for this slot. | |
110 | AliAnalysisDataSlot *slot = (AliAnalysisDataSlot*)this; | |
111 | if (!fType) slot->SetType(gROOT->GetClass(fTitle.Data())); | |
112 | if (!fType) printf("AliAnalysisDataSlot: Unknown class: %s\n", GetTitle()); | |
113 | return fType; | |
114 | } | |
115 | ||
327eaf46 | 116 | //______________________________________________________________________________ |
117 | void *AliAnalysisDataSlot::GetBranchAddress(const char *branchname) const | |
118 | { | |
119 | // Retrieve the address for a given branch. One should always test this before | |
120 | // using SetBranchAddress because the address gets set by the first caller. | |
121 | // Call this in MyTask::Init() | |
c52c2132 | 122 | if (!GetType()) return NULL; |
327eaf46 | 123 | if (!fType->InheritsFrom(TTree::Class())) { |
11026a80 | 124 | cout<<"Cannot call GetBranchAddress() for data slot of task "<<fParent->GetName()<<" not pointing to tree-type data"<<endl; |
125 | //AliFatal(Form("Cannot call GetBranchAddress() for data slot of task %s not pointing to tree-type data", fParent->GetName())); | |
327eaf46 | 126 | return NULL; |
127 | } | |
128 | if (!IsDataReady()) { | |
11026a80 | 129 | cout<<"Cannot call GetBranchAddress() for data slot of task "<<fParent->GetName()<<" while data is not ready"<<endl; |
130 | //AliFatal(Form("Cannot call GetBranchAddress() for data slot of task %s while data is not ready", fParent->GetName())); | |
327eaf46 | 131 | return NULL; |
132 | } | |
133 | TTree *tree = (TTree*)GetData(); | |
134 | TBranch *br = tree->GetBranch(branchname); | |
135 | if (!br) { | |
11026a80 | 136 | cout<<"Branch "<<branchname<<" not found in tree "<<tree->GetName()<<" as input of task "<<fParent->GetName()<<"..."<<endl; |
137 | //AliFatal(Form("Branch %s not found in tree %s as input of task %s...", branchname, tree->GetName(), fParent->GetName())); | |
327eaf46 | 138 | return NULL; |
139 | } | |
140 | return br->GetAddress(); | |
141 | } | |
142 | ||
b1310ef5 | 143 | //______________________________________________________________________________ |
144 | Int_t AliAnalysisDataSlot::EnableBranch(const char *bname, TTree *tree) | |
145 | { | |
146 | // Static method to enable recursively a branch in a tree (why this in not in ROOT?) | |
147 | TBranch *branch = tree->GetBranch(bname); | |
148 | Int_t count = 0; | |
149 | // static Int_t indent = 0; | |
150 | if (!branch) return count; | |
151 | // TString s; | |
152 | // for (Int_t i=0; i<indent; i++) s += " "; | |
153 | count++; | |
154 | // printf("%sbranch %s: kDoNotProcess=%d\n",s.Data(), branch->GetName(), branch->TestBit(kDoNotProcess)); | |
155 | branch->SetBit(kDoNotProcess, kFALSE); | |
156 | TIter next(branch->GetListOfBranches()); | |
157 | TBranch *branch_sub; | |
158 | // Activate all sub-branches | |
159 | // indent++; | |
160 | while ((branch_sub=(TBranch*)next())) { | |
161 | count += AliAnalysisDataSlot::EnableBranch(branch_sub->GetName(), tree); | |
162 | } | |
163 | // indent--; | |
164 | return count; | |
165 | } | |
166 | ||
327eaf46 | 167 | //______________________________________________________________________________ |
168 | Bool_t AliAnalysisDataSlot::SetBranchAddress(const char *branchname, void *address) | |
169 | { | |
170 | // Set a branch address for input tree. To be called during MyTask::Init() | |
171 | // only if GetBranchAddress() returns a NULL pointer for a tree-type slot. | |
172 | if (GetBranchAddress(branchname)) { | |
981f2614 | 173 | Error("SetBranchAddress","Branch address for %s already set by other task. Call first GetBranchAddress() in %s::ConnectInputData()",branchname, fParent->GetName()); |
327eaf46 | 174 | return kFALSE; |
175 | } | |
176 | TTree *tree = (TTree*)GetData(); | |
177 | tree->SetBranchAddress(branchname, address); | |
178 | return kTRUE; | |
179 | } | |
180 | ||
d3106602 | 181 | //______________________________________________________________________________ |
182 | TObject *AliAnalysisDataSlot::GetData() const | |
183 | { | |
184 | // Retreives the data from the container if it is ready. | |
185 | if (!fContainer) { | |
11026a80 | 186 | //AliError(Form("Data slot of type %s of task %s has no connected data container",fType->GetName(), fParent->GetName())); |
d3106602 | 187 | return NULL; |
188 | } | |
189 | if (!fContainer->IsDataReady()) return NULL; | |
190 | return fContainer->GetData(); | |
191 | } | |
192 | ||
193 | //______________________________________________________________________________ | |
194 | Bool_t AliAnalysisDataSlot::IsDataReady() const | |
195 | { | |
196 | // Check if data for this slot is ready in its container. | |
197 | if (!fContainer) { | |
c52c2132 | 198 | cout<<"Data slot of type "<<GetTitle()<<" of task "<<fParent->GetName()<<" has no connected data container"<<endl; |
11026a80 | 199 | //AliError(Form("Data slot of type %s of task %s has no connected data container",fType->GetName(), fParent->GetName())); |
d3106602 | 200 | return kFALSE; |
201 | } | |
202 | return fContainer->IsDataReady(); | |
203 | } | |
204 |