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TArchiveFile.h
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1// @(#)root/io:$Id$
2// Author: Fons Rademakers 30/6/04
3
4/*************************************************************************
5 * Copyright (C) 1995-2004, 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_TArchiveFile
13#define ROOT_TArchiveFile
14
15#include "TObject.h"
16#include "TString.h"
17#include "TDatime.h"
18
19class TFile;
20class TArchiveMember;
21class TObjArray;
22
23
24class TArchiveFile : public TObject {
25
26private:
27 TArchiveFile(const TArchiveFile&) = delete; ///< Not implemented because TArchiveFile can not be copied.
28 TArchiveFile& operator=(const TArchiveFile&) = delete; ///< Not implemented because TArchiveFile can not be copied.
29
30protected:
31 TString fArchiveName; ///< Archive file name
32 TString fMemberName; ///< Sub-file name
33 Int_t fMemberIndex; ///< Index of sub-file in archive
34 TFile *fFile; ///< File stream used to access the archive
35 TObjArray *fMembers; ///< Members in this archive
36 TArchiveMember *fCurMember; ///< Current archive member
37
38 static Bool_t ParseUrl(const char *url, TString &archive, TString &member, TString &type);
39
40public:
42 TArchiveFile(const char *archive, const char *member, TFile *file);
43 virtual ~TArchiveFile();
44
45 virtual Int_t OpenArchive() = 0;
46 virtual Int_t SetCurrentMember() = 0;
47 virtual Int_t SetMember(const char *member);
48 virtual Int_t SetMember(Int_t idx);
49
51 TArchiveMember *GetMember() const { return fCurMember; }
52 TObjArray *GetMembers() const { return fMembers; }
54
55 const char *GetArchiveName() const { return fArchiveName; }
56 const char *GetMemberName() const { return fMemberName; }
57 Int_t GetMemberIndex() const { return fMemberIndex; }
58
59 static TArchiveFile *Open(const char *url, TFile *file);
60
61 ClassDef(TArchiveFile,1) //An archive file containing multiple sub-files (like a ZIP archive)
62};
63
64
65class TArchiveMember : public TObject {
66
67friend class TArchiveFile;
68
69protected:
70 TString fName; ///< Name of member
71 TString fComment; ///< Comment field
72 TDatime fModTime; ///< Modification time
73 Long64_t fPosition; ///< Byte position in archive
74 Long64_t fFilePosition; ///< Byte position in archive where member data starts
75 Long64_t fCsize; ///< Compressed size
76 Long64_t fDsize; ///< Decompressed size
77 Bool_t fDirectory; ///< Flag indicating this is a directory
78
79public:
81 TArchiveMember(const char *name);
82 TArchiveMember(const TArchiveMember &member);
84 virtual ~TArchiveMember() { }
85
86 const char *GetName() const { return fName; }
87 const char *GetComment() const { return fComment; }
88 TDatime GetModTime() const { return fModTime; }
89 Long64_t GetPosition() const { return fPosition; }
91 Long64_t GetCompressedSize() const { return fCsize; }
93 Bool_t IsDirectory() const { return fDirectory; }
94
95 ClassDef(TArchiveMember,1) //An archive member file
96};
97
98#endif
int Int_t
Definition: RtypesCore.h:43
bool Bool_t
Definition: RtypesCore.h:61
long long Long64_t
Definition: RtypesCore.h:71
#define ClassDef(name, id)
Definition: Rtypes.h:322
char name[80]
Definition: TGX11.cxx:109
int type
Definition: TGX11.cxx:120
Class describing an archive file containing multiple sub-files, like a ZIP or TAR archive.
Definition: TArchiveFile.h:24
Int_t GetMemberIndex() const
Definition: TArchiveFile.h:57
const char * GetMemberName() const
Definition: TArchiveFile.h:56
virtual ~TArchiveFile()
Dtor.
virtual Int_t SetCurrentMember()=0
TArchiveFile & operator=(const TArchiveFile &)=delete
Not implemented because TArchiveFile can not be copied.
TArchiveMember * fCurMember
Current archive member.
Definition: TArchiveFile.h:36
const char * GetArchiveName() const
Definition: TArchiveFile.h:55
TArchiveMember * GetMember() const
Definition: TArchiveFile.h:51
TString fMemberName
Sub-file name.
Definition: TArchiveFile.h:32
static TArchiveFile * Open(const char *url, TFile *file)
Return proper archive file handler depending on passed url.
TString fArchiveName
Archive file name.
Definition: TArchiveFile.h:31
static Bool_t ParseUrl(const char *url, TString &archive, TString &member, TString &type)
Try to determine if url contains an anchor specifying an archive member.
TObjArray * GetMembers() const
Definition: TArchiveFile.h:52
Int_t fMemberIndex
Index of sub-file in archive.
Definition: TArchiveFile.h:33
Long64_t GetMemberFilePosition() const
Return position in archive of current member.
virtual Int_t SetMember(const char *member)
Explicitely make the specified member the current member.
virtual Int_t OpenArchive()=0
Int_t GetNumberOfMembers() const
Returns number of members in archive.
TObjArray * fMembers
Members in this archive.
Definition: TArchiveFile.h:35
TArchiveFile(const TArchiveFile &)=delete
Not implemented because TArchiveFile can not be copied.
TFile * fFile
File stream used to access the archive.
Definition: TArchiveFile.h:34
const char * GetName() const
Returns name of object.
Definition: TArchiveFile.h:86
TString fComment
Comment field.
Definition: TArchiveFile.h:71
TDatime fModTime
Modification time.
Definition: TArchiveFile.h:72
Long64_t GetDecompressedSize() const
Definition: TArchiveFile.h:92
Long64_t fCsize
Compressed size.
Definition: TArchiveFile.h:75
TDatime GetModTime() const
Definition: TArchiveFile.h:88
Long64_t fPosition
Byte position in archive.
Definition: TArchiveFile.h:73
Long64_t fFilePosition
Byte position in archive where member data starts.
Definition: TArchiveFile.h:74
const char * GetComment() const
Definition: TArchiveFile.h:87
TArchiveMember & operator=(const TArchiveMember &rhs)
Assignment operator.
TString fName
Name of member.
Definition: TArchiveFile.h:70
virtual ~TArchiveMember()
Definition: TArchiveFile.h:84
TArchiveMember()
Default ctor.
Bool_t fDirectory
Flag indicating this is a directory.
Definition: TArchiveFile.h:77
Long64_t GetPosition() const
Definition: TArchiveFile.h:89
Bool_t IsDirectory() const
Definition: TArchiveFile.h:93
Long64_t fDsize
Decompressed size.
Definition: TArchiveFile.h:76
Long64_t GetFilePosition() const
Definition: TArchiveFile.h:90
Long64_t GetCompressedSize() const
Definition: TArchiveFile.h:91
This class stores the date and time with a precision of one second in an unsigned 32 bit word (950130...
Definition: TDatime.h:37
A ROOT file is a suite of consecutive data records (TKey instances) with a well defined format.
Definition: TFile.h:53
An array of TObjects.
Definition: TObjArray.h:37
Mother of all ROOT objects.
Definition: TObject.h:37
Basic string class.
Definition: TString.h:131
Definition: file.py:1