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5312f439 | 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 | /////////////////////////////////////////////////////////////////////////////// | |
17 | // // | |
18 | // Class for Parsing simple text configuration files // | |
19 | // It produces a TList for the TObjArrays with the name of the Key | |
20 | // the TObjArray contain the Values, split from kommas, as found in the // | |
21 | // Configutation file. // | |
22 | // // | |
23 | // The configuration file has a simple structure: // | |
24 | // * Lines starting with a # or empty lines are ignored // | |
25 | // * Key and Value are separated either by a <tab> or <space>es // | |
26 | // // | |
27 | // Currently the class is used in the TPC DAs to allow an adjustment of // | |
28 | // the most relevant parameters without recompiling the DAs // | |
29 | /////////////////////////////////////////////////////////////////////////////// | |
30 | ||
31 | ||
32 | #include <fstream> | |
33 | //Root includes | |
34 | #include <TObjString.h> | |
35 | #include <TObjArray.h> | |
36 | #include <TString.h> | |
37 | #include <TIterator.h> | |
38 | #include <TList.h> | |
6e7d7dc4 | 39 | #include <TSystem.h> |
5312f439 | 40 | //AliRoot includes |
41 | ||
42 | //header | |
43 | #include "AliTPCConfigParser.h" | |
44 | ||
45 | ||
46 | AliTPCConfigParser::AliTPCConfigParser() : | |
47 | TObject(), | |
48 | fConfigMap(new TList), | |
49 | fKeyIter(0), | |
50 | fValIter(0) | |
51 | { | |
52 | // | |
53 | // default constructor | |
54 | // | |
55 | fConfigMap->SetOwner(); | |
56 | } | |
57 | //_____________________________________________________________________ | |
58 | AliTPCConfigParser::AliTPCConfigParser(const AliTPCConfigParser &cfg) : | |
59 | TObject(), | |
60 | fConfigMap((TList*)cfg.fConfigMap->Clone()), | |
61 | fKeyIter(0), | |
62 | fValIter(0) | |
63 | { | |
64 | // | |
65 | // copy constructor | |
66 | // | |
67 | fConfigMap->SetOwner(); | |
68 | } | |
69 | ||
70 | //_____________________________________________________________________ | |
71 | AliTPCConfigParser::AliTPCConfigParser(const char* cfgfile) : | |
72 | TObject(), | |
73 | fConfigMap(new TList), | |
74 | fKeyIter(0), | |
75 | fValIter(0) | |
76 | { | |
77 | // | |
78 | // default constructor using the config file name as input parameter | |
79 | // | |
80 | fConfigMap->SetOwner(); | |
81 | if ( !cfgfile ) return; | |
82 | ParseConfigFileTxt(cfgfile); | |
83 | } | |
84 | //_____________________________________________________________________ | |
85 | AliTPCConfigParser& AliTPCConfigParser::operator = (const AliTPCConfigParser &source) | |
86 | { | |
87 | // | |
88 | // assignment operator | |
89 | // | |
90 | if (&source == this) return *this; | |
91 | new (this) AliTPCConfigParser(source); | |
92 | ||
93 | return *this; | |
94 | } | |
95 | //_____________________________________________________________________ | |
96 | AliTPCConfigParser::~AliTPCConfigParser() | |
97 | { | |
98 | // | |
99 | // dtor | |
100 | // | |
101 | delete fConfigMap; | |
102 | delete fKeyIter; | |
103 | delete fValIter; | |
104 | } | |
105 | //_____________________________________________________________________ | |
106 | Int_t AliTPCConfigParser::ParseConfigFileTxt(const char* cfgfile) | |
107 | { | |
108 | // | |
109 | // Function to parse a configuration file | |
110 | // | |
6e7d7dc4 | 111 | ResetMap(); |
112 | ifstream file(gSystem->ExpandPathName(cfgfile)); | |
5312f439 | 113 | if ( !file.is_open() ){ |
114 | Error("ParseConfigFileTxt","File '%s' could not be opened!", cfgfile); | |
115 | return 1; | |
116 | } | |
117 | TString strFile; | |
118 | strFile.ReadFile(file); | |
119 | TObjArray *arr=strFile.Tokenize("\n"); | |
120 | if ( !arr ) { | |
121 | file.close(); | |
122 | return 2; | |
123 | } | |
124 | TIter nextLine(arr); | |
125 | while (TObject *l=nextLine()){ | |
126 | TString line(((TObjString*)l)->GetString()); | |
127 | //remove whitespcaces | |
128 | line.Remove(TString::kBoth,' '); | |
129 | line.Remove(TString::kBoth,'\t'); | |
130 | if ( line.BeginsWith("#") || line=="" ) continue; | |
131 | line.ReplaceAll(", ",","); | |
132 | TObjArray *arrValues=line.Tokenize(" \t"); | |
133 | //currently only name => Value is supported | |
134 | //and name => 'nothing' | |
135 | //value may be a comma separated list, in which case a TObjArray | |
136 | //of the list will be created and stored as the value | |
137 | Int_t nentries=arrValues->GetEntries(); | |
138 | if (nentries>2){ | |
139 | Error("AliTPCConfigParser","ParseConfigFileTxt: Cannot parse line '%s'\n",line.Data()); | |
140 | delete arrValues; | |
141 | continue; | |
142 | } | |
143 | TObjArray *objArr=0x0; | |
144 | if (nentries==2){ | |
145 | TObject *objVal=arrValues->At(1); | |
146 | const TString &str=((TObjString*)objVal)->GetString(); | |
147 | if (str.Contains(",")) | |
148 | objArr=str.Tokenize(","); | |
149 | else{ | |
150 | objArr=new TObjArray; | |
151 | objArr->Add(objVal->Clone()); | |
152 | } | |
153 | objArr->SetOwner(kTRUE); | |
154 | } else { | |
155 | objArr=new TObjArray; | |
156 | } | |
157 | objArr->SetName(arrValues->At(0)->GetName()); | |
158 | fConfigMap->AddLast(objArr); | |
159 | delete arrValues; | |
160 | } | |
161 | ||
162 | delete arr; | |
163 | return 0; | |
164 | } | |
165 | //_____________________________________________________________________ | |
166 | Float_t AliTPCConfigParser::GetValue(const char *key, UInt_t position) | |
167 | { | |
168 | // | |
169 | //Get value for the speciefied key | |
170 | // | |
171 | TObject *val=((TObjArray*)fConfigMap->FindObject(key))->At(position); | |
172 | if ( !val ) return -999.; | |
173 | TString sval(((TObjString*)val)->GetString()); | |
174 | return sval.Atof(); | |
175 | } | |
176 | //_____________________________________________________________________ | |
6fb51ca4 | 177 | const char* AliTPCConfigParser::GetData(const char *key, UInt_t position) |
178 | { | |
179 | // | |
180 | //Get value for the speciefied key | |
181 | // | |
7390f655 | 182 | TObjArray *arr=((TObjArray*)fConfigMap->FindObject(key)); |
be1765e4 | 183 | if (position>=(UInt_t)(arr->GetEntries())) return ""; |
7390f655 | 184 | TObject *val=arr->At(position); |
185 | if ( !val ) return ""; | |
6fb51ca4 | 186 | return (((TObjString*)val)->GetString()).Data(); |
187 | } | |
188 | //_____________________________________________________________________ | |
189 | Float_t AliTPCConfigParser::GetValue(const TObject *key, UInt_t position) | |
190 | { | |
191 | // | |
192 | //Get value for the speciefied key | |
193 | // | |
194 | TObject *val=((TObjArray*)fConfigMap->FindObject(key))->At(position); | |
195 | if ( !val ) return -999.; | |
196 | TString sval(((TObjString*)val)->GetString()); | |
197 | return sval.Atof(); | |
198 | } | |
199 | //_____________________________________________________________________ | |
200 | const char* AliTPCConfigParser::GetData(const TObject *key, UInt_t position) | |
201 | { | |
202 | // | |
203 | //Get value for the speciefied key | |
204 | // | |
7390f655 | 205 | TObjArray *arr=((TObjArray*)fConfigMap->FindObject(key)); |
be1765e4 | 206 | if (position>=((UInt_t)arr->GetEntries())) return ""; |
7390f655 | 207 | TObject *val=arr->At(position); |
208 | if ( !val ) return ""; | |
6fb51ca4 | 209 | return (((TObjString*)val)->GetString()).Data(); |
210 | } | |
211 | //_____________________________________________________________________ | |
212 | Int_t AliTPCConfigParser::GetNumberOfValues(const char* key) const | |
213 | { | |
214 | // | |
215 | // return the number of values for key | |
216 | // | |
217 | return ((TObjArray*)fConfigMap->FindObject(key))->GetEntries(); | |
218 | } | |
219 | //_____________________________________________________________________ | |
220 | Int_t AliTPCConfigParser::GetNumberOfValues(TObject* key) const | |
221 | { | |
222 | // | |
223 | // return the number of values for key | |
224 | // | |
225 | return ((TObjArray*)fConfigMap->FindObject(key))->GetEntries(); | |
226 | } | |
227 | //_____________________________________________________________________ | |
5312f439 | 228 | TObject* AliTPCConfigParser::NextKey(){ |
229 | if (!fKeyIter) fKeyIter=fConfigMap->MakeIterator(); | |
230 | TObject *obj=fKeyIter->Next(); | |
231 | if (!obj) { | |
232 | delete fKeyIter; | |
233 | fKeyIter=0; | |
234 | } | |
235 | return obj; | |
236 | } | |
237 | //_____________________________________________________________________ | |
238 | TObject* AliTPCConfigParser::NextValue(const char *key){ | |
239 | return NextValueIter((TObjArray*)fConfigMap->FindObject(key)); | |
240 | } | |
241 | //_____________________________________________________________________ | |
242 | TObject* AliTPCConfigParser::NextValue(TObject *key){ | |
243 | return NextValueIter((TObjArray*)fConfigMap->FindObject(key)); | |
244 | } | |
245 | //_____________________________________________________________________ | |
246 | TObject* AliTPCConfigParser::NextValueIter(TObjArray *key){ | |
247 | if (!key) return 0; | |
248 | //check if the collection has changed | |
5dbad769 | 249 | if (fValIter && key!=fValIter->GetCollection()) { |
250 | delete fValIter; | |
251 | fValIter=0x0; | |
252 | } | |
5312f439 | 253 | if (!fValIter) fValIter=key->MakeIterator(); |
254 | TObject *value=fValIter->Next(); | |
255 | if (!value) { | |
256 | delete fValIter; | |
257 | fValIter=0; | |
258 | } | |
259 | return value; | |
260 | } | |
261 | //_____________________________________________________________________ | |
262 | void AliTPCConfigParser::ResetMap() | |
263 | { | |
264 | // | |
265 | // Reset the map with the configuration values | |
266 | // | |
267 | fConfigMap->Delete(); | |
268 | } |