]>
Commit | Line | Data |
---|---|---|
2c8628dd | 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 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // base class for data base access classes // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | ||
25 | #include <TFile.h> | |
26 | #include <TKey.h> | |
27 | #include <TROOT.h> | |
28 | ||
29 | #include "AliLog.h" | |
30 | #include "AliMetaData.h" | |
31 | #include "AliRunData.h" | |
32 | #include "AliRunDataStorage.h" | |
33 | ||
34 | ||
35 | ClassImp(AliRunDataStorage) | |
36 | ||
37 | ||
38 | AliRunDataStorage* AliRunDataStorage::fgInstance = NULL; | |
39 | ||
40 | ||
41 | //_____________________________________________________________________________ | |
42 | AliRunDataStorage::AliRunDataStorage() : | |
43 | TObject(), | |
44 | fSelection(), | |
45 | fEntries(), | |
46 | fRecordFile(NULL) | |
47 | { | |
48 | // default constructor | |
49 | ||
50 | if (fgInstance) delete fgInstance; | |
51 | fgInstance = this; | |
52 | } | |
53 | ||
54 | //_____________________________________________________________________________ | |
55 | AliRunDataStorage::~AliRunDataStorage() | |
56 | { | |
57 | // destructor | |
58 | ||
59 | fSelection.Delete(); | |
60 | fEntries.Delete(); | |
61 | if (fRecordFile) { | |
62 | fRecordFile->Close(); | |
63 | delete fRecordFile; | |
64 | } | |
65 | fgInstance = NULL; | |
66 | } | |
67 | ||
68 | //_____________________________________________________________________________ | |
69 | AliRunDataStorage::AliRunDataStorage(const AliRunDataStorage& db) : | |
70 | TObject(db), | |
71 | fSelection(), | |
72 | fEntries(), | |
73 | fRecordFile(NULL) | |
74 | { | |
75 | // copy constructor | |
76 | ||
77 | AliFatal("not implemented"); | |
78 | } | |
79 | ||
80 | //_____________________________________________________________________________ | |
81 | AliRunDataStorage& AliRunDataStorage::operator = (const AliRunDataStorage& /*db*/) | |
82 | { | |
83 | // assignment operator | |
84 | ||
85 | AliFatal("not implemented"); | |
86 | return *this; | |
87 | } | |
88 | ||
89 | ||
90 | //_____________________________________________________________________________ | |
91 | const TObject* AliRunDataStorage::Get(const char* name, Int_t runNumber) | |
92 | { | |
93 | // get an object from the data base | |
94 | // (AliRunDataStorage is the owner of the returned object) | |
95 | ||
96 | AliMetaData defaultMetaData; | |
97 | AliMetaData* selectedMetaData = &defaultMetaData; | |
98 | ||
99 | // look for a meta data selection | |
100 | for (Int_t i = 0; i < fSelection.GetEntriesFast(); i++) { | |
101 | AliMetaData* selection = (AliMetaData*) fSelection[i]; | |
102 | if (!selection) continue; | |
103 | if (selection->Matches(name, runNumber)) { | |
104 | selectedMetaData = selection; | |
105 | } | |
106 | } | |
107 | ||
108 | // get the entry | |
109 | AliMetaData metaData(*selectedMetaData); | |
110 | metaData.SetName(name); | |
111 | AliRunData* entry = GetEntry(metaData, runNumber); | |
112 | if (entry) { | |
113 | AliDebug(2, "got the entry:"); | |
114 | ToAliDebug(2, entry->Dump()); | |
115 | } else { | |
116 | AliDebug(2, Form("got no entry for %s", name)); | |
117 | } | |
118 | ||
119 | // update array of current entries | |
120 | if (!entry) return NULL; | |
121 | TObject* oldEntry = fEntries.FindObject(entry->GetName()); | |
122 | if (oldEntry) { | |
123 | delete fEntries.Remove(oldEntry); | |
124 | } | |
125 | fEntries.Add(entry); | |
126 | ||
127 | // record entry to a file | |
128 | if (fRecordFile) { | |
129 | Bool_t isAlreadyRecorded = kFALSE; | |
130 | TDirectory* dir = gDirectory; | |
131 | fRecordFile->cd(); | |
132 | TKey* key = fRecordFile->GetKey(entry->GetName()); | |
133 | if (key) { | |
134 | Int_t nCycles = key->GetCycle(); | |
135 | for (Int_t iCycle = nCycles; iCycle > 0; iCycle--) { | |
136 | key = fRecordFile->GetKey(entry->GetName(), iCycle); | |
137 | if (!key) continue; | |
138 | AliRunData* recEntry = (AliRunData*) key->ReadObj(); | |
139 | if (!recEntry) continue; | |
140 | if (recEntry->InheritsFrom(AliRunData::Class()) && | |
141 | (recEntry->GetMetaData() == entry->GetMetaData())) { | |
142 | isAlreadyRecorded = kTRUE; | |
143 | } | |
144 | delete recEntry; | |
145 | if (isAlreadyRecorded) break; | |
146 | } | |
147 | } | |
148 | if (!isAlreadyRecorded) { | |
149 | if (entry->Write() == 0) { | |
150 | AliError(Form("could not record entry %s", entry->GetName())); | |
151 | } | |
152 | } | |
153 | if (dir) dir->cd(); else gROOT->cd(); | |
154 | } | |
155 | ||
156 | return entry->GetObject(); | |
157 | } | |
158 | ||
159 | ||
160 | //_____________________________________________________________________________ | |
161 | Bool_t AliRunDataStorage::Put(const TObject* object, | |
162 | const AliMetaData& metaData) | |
163 | { | |
164 | // put an object into the data base | |
165 | // (AliRunDataStorage does not adopt the object) | |
166 | ||
167 | if (!object) return kFALSE; | |
168 | AliRunData entry(object->Clone(), metaData); | |
169 | return PutEntry(&entry); | |
170 | } | |
171 | ||
172 | //_____________________________________________________________________________ | |
173 | Bool_t AliRunDataStorage::PutEntry(AliRunData* entry) | |
174 | { | |
175 | // put an object into the data base | |
176 | ||
177 | if (!entry) return kFALSE; | |
178 | AliError(Form("This is a read only data base. " | |
179 | "The object %s was not inserted", entry->GetName())); | |
180 | return kFALSE; | |
181 | } | |
182 | ||
183 | ||
184 | //_____________________________________________________________________________ | |
185 | void AliRunDataStorage::Select(const AliMetaData& metaData) | |
186 | { | |
187 | // add some meta data selection criteria | |
188 | ||
189 | fSelection.Add(new AliMetaData(metaData)); | |
190 | } | |
191 | ||
192 | ||
193 | //_____________________________________________________________________________ | |
194 | Bool_t AliRunDataStorage::RecordToFile(const char* fileName) | |
195 | { | |
196 | // record entries retrieved from the data base to a file with the given name | |
197 | ||
198 | if (fRecordFile) { | |
199 | fRecordFile->Close(); | |
200 | delete fRecordFile; | |
201 | } | |
202 | ||
203 | TDirectory* dir = gDirectory; | |
204 | fRecordFile = TFile::Open(fileName, "UPDATE"); | |
205 | if (dir) dir->cd(); else gROOT->cd(); | |
206 | if (!fRecordFile || !fRecordFile->IsOpen()) { | |
207 | AliError(Form("could not open file %s", fileName)); | |
208 | delete fRecordFile; | |
209 | fRecordFile = NULL; | |
210 | return kFALSE; | |
211 | } | |
212 | return kTRUE; | |
213 | } | |
214 | ||
215 | ||
216 | //_____________________________________________________________________________ | |
217 | AliRunDataStorage* AliRunDataStorage::Instance() | |
218 | { | |
219 | // return the current instance of the DB | |
220 | ||
221 | return fgInstance; | |
222 | } |