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TAlienFile.h
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1 // @(#)root/alien:$Id$
2 // Author: Andreas Peters 11/09/2003
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2006, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 #ifndef ROOT_TAlienFile
13 #define ROOT_TAlienFile
14 
15 //////////////////////////////////////////////////////////////////////////
16 // //
17 // TAlienFile //
18 // //
19 // A TAlienFile is like a normal TFile except that it reads and writes //
20 // it's data via TXNetFile and gets authorization and the TXNetFile //
21 // URL from an alien service. //
22 // //
23 // Filenames are standard URL format with protocol "alien". //
24 // The following are valid TAlienFile URL's: //
25 // //
26 // alien:///alice/cern.ch/user/p/peters/test.root //
27 // /alien/alice/cern.ch/user/p/peters/test.root //
28 // //
29 // - notice that URLs like /alien/alice... are converted internally //
30 // to alien://alice... //
31 // //
32 //////////////////////////////////////////////////////////////////////////
33 
34 #include "TXNetFile.h"
35 
36 
37 class TUrl;
38 
39 class TAlienFile : public TXNetFile {
40 
41 private:
42  TString fLfn; // logical file name
43  TString fAuthz; // authorization envelope
44  TString fGUID; // GUID
45  TString fUrl; // url for the opened copy
46  TString fPfn; // physical file name
47  TString fSE; // Storage element
48  Int_t fImage; // Image number
49  Int_t fNreplicas; // Number of replicas
50  Long64_t fOpenedAt; // Absolute value for time when opened
51  Double_t fElapsed; // Time elapsed to opem file
52 public:
53  TAlienFile() : TXNetFile(), fLfn(), fAuthz(), fGUID(), fUrl(), fPfn(), fSE(), fImage(0), fNreplicas(0), fOpenedAt(0), fElapsed(0) { }
54  TAlienFile(const char *purl, Option_t *option = "",
55  const char *ftitle = "", Int_t compress = ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault,
56  Bool_t parallelopen = kFALSE, const char *lurl = 0,
57  const char *authz = 0);
58  virtual ~TAlienFile();
59 
60  virtual void Close(const Option_t *opt = "");
61 
62  const char *GetGUID() const {return fGUID;}
63  Double_t GetElapsed() const {return fElapsed;}
64  Int_t GetImage() const {return fImage;}
65  const char *GetLfn() const {return fLfn;}
66  Int_t GetNreplicas() const {return fNreplicas;}
67  Long64_t GetOpenTime() const {return fOpenedAt;}
68  const char *GetPfn() const {return fPfn;}
69  const char *GetSE() const {return fSE;}
70  const char *GetUrl() const {return fUrl;}
71 
72 protected:
73  void SetGUID(const char *guid) {fGUID = guid;}
74  void SetElapsed(Double_t real) {fElapsed = real;}
75  void SetImage(Int_t image) {fImage = image;}
76  void SetNreplicas(Int_t nrep) {fNreplicas = nrep;}
77  void SetPfn(const char *pfn) {fPfn = pfn;}
78  void SetSE(const char *se) {fSE = se;}
79  void SetUrl(const char *url) {fUrl = url;}
80 
81 public:
82  static TAlienFile *Open(const char *lfn, const Option_t *option = "",
83  const char *title = "", Int_t compress = ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault,
84  Bool_t parallelopen = kFALSE);
85  static TString SUrl(const char *lfn);
86 
87  ClassDef(TAlienFile, 4) //A ROOT file that reads/writes via AliEn services and TXNetFile protocol
88 };
89 
90 #endif