Line data Source code
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 : // $MpId: AliMpDataStreams.cxx,v 1.12 2006/05/23 13:09:54 ivana Exp $
18 : // Category: basic
19 :
20 : //-----------------------------------------------------------------------------
21 : // Class AliMpDataStreams
22 : // ----------------------
23 : // Class for providing mapping data streams
24 : // See detailed description in the header file.
25 : // Author: Ivana Hrivnacova; IPN Orsay
26 : //-----------------------------------------------------------------------------
27 :
28 : #include "AliMpDataStreams.h"
29 : #include "AliMpDataMap.h"
30 : #include "AliMpFiles.h"
31 :
32 : #include "AliLog.h"
33 :
34 : #include <TMap.h>
35 : #include <TFile.h>
36 : #include <TObjString.h>
37 : #include <TString.h>
38 : #include <Riostream.h>
39 :
40 : #include <string>
41 :
42 : /// \cond CLASSIMP
43 18 : ClassImp(AliMpDataStreams)
44 : /// \endcond
45 :
46 :
47 : //______________________________________________________________________________
48 : AliMpDataStreams::AliMpDataStreams(AliMpDataMap* map)
49 5 : : TObject(),
50 5 : fMap(map),
51 5 : fReadFromFiles(kTRUE)
52 25 : {
53 : /// Standard and default constructor
54 :
55 10 : if ( map ) fReadFromFiles = kFALSE;
56 10 : }
57 :
58 : //______________________________________________________________________________
59 : AliMpDataStreams::AliMpDataStreams(TRootIOCtor* /*ioCtor*/)
60 0 : : TObject(),
61 0 : fMap(0),
62 0 : fReadFromFiles()
63 0 : {
64 : /// Root IO constructor
65 :
66 0 : }
67 :
68 : //______________________________________________________________________________
69 : AliMpDataStreams::~AliMpDataStreams()
70 10 : {
71 : /// Destructor
72 :
73 : // delete fMap;
74 : // Do not delete data map as it is a CDB object
75 : // which is cached
76 15 : }
77 :
78 : //
79 : // private methods
80 : //
81 :
82 : //______________________________________________________________________________
83 : void AliMpDataStreams::CutDataPath(string& dataPath) const
84 : {
85 : /// Cut the path defined in AliMpFiles as Top() + one more directory
86 :
87 35076 : string top = AliMpFiles::GetTop().Data();
88 17538 : if ( dataPath.find(top) != string::npos ) dataPath.erase(0, top.size()+1);
89 8769 : dataPath.erase(0,dataPath.find('/')+1);
90 8769 : }
91 :
92 :
93 :
94 : //
95 : // public methods
96 : //
97 :
98 : //______________________________________________________________________________
99 : istream& AliMpDataStreams::CreateDataStream(const TString& path) const
100 : {
101 : /// Return the string with data in the mapping file spcified with path.
102 : /// Both full path in the file system and a short path (without
103 : /// $LICE_ROOT/mapping/data string) can be used.
104 :
105 :
106 26235 : if ( fReadFromFiles ) {
107 8745 : AliDebugStream(2) << "Opening file " << path.Data() << endl;
108 0 : ifstream* fileBuffer = new ifstream();
109 0 : fileBuffer->open(path.Data());
110 0 : if ( ! fileBuffer->good() ) {
111 0 : AliErrorStream()
112 0 : << "Cannot open file " << path.Data() << endl;
113 0 : }
114 0 : return *fileBuffer;
115 : }
116 : else {
117 8745 : AliDebugStream(2) << "Opening stream " << path.Data() << endl;
118 :
119 : // Cut top from the path
120 8745 : string dataPath = path.Data();
121 8745 : CutDataPath(dataPath);
122 :
123 : istringstream* stringBuffer
124 61215 : = new istringstream(fMap->Get(dataPath).Data());
125 8745 : return *stringBuffer;
126 8745 : }
127 8745 : }
128 :
129 : //______________________________________________________________________________
130 : Bool_t AliMpDataStreams::IsDataStream(const TString& path) const
131 : {
132 : /// Return true, if data with given path exists
133 :
134 48 : if ( fReadFromFiles ) {
135 0 : ifstream fileBuffer(path.Data());
136 0 : return fileBuffer.good();
137 0 : }
138 : else {
139 : // Cut top from the path
140 24 : string dataPath = path.Data();
141 24 : CutDataPath(dataPath);
142 :
143 96 : return ( fMap->Get(dataPath, kFALSE) != "" );
144 24 : }
145 24 : }
146 :
147 : //______________________________________________________________________________
148 : void AliMpDataStreams::SetReadFromFiles()
149 : {
150 : /// Set option to read data from files
151 :
152 0 : fReadFromFiles = kTRUE;
153 0 : }
154 :
155 : //______________________________________________________________________________
156 : Bool_t AliMpDataStreams::GetReadFromFiles() const
157 : {
158 : /// Return the info where the data are loaded from
159 :
160 22 : return fReadFromFiles;
161 : }
|
