libzypp  11.13.5
PackageProvider.h
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12 #ifndef ZYPP_REPO_PACKAGEPROVIDER_H
13 #define ZYPP_REPO_PACKAGEPROVIDER_H
14 
15 #include <iosfwd>
16 
17 #include "zypp/base/NonCopyable.h"
18 
19 #include "zypp/ZYppCallbacks.h"
20 #include "zypp/Package.h"
21 #include "zypp/ManagedFile.h"
22 #include "zypp/repo/RepoProvideFile.h"
23 #include "zypp/repo/DeltaCandidates.h"
24 
26 namespace zypp
27 {
28 
29  namespace repo
30  {
31 
33  //
34  // CLASS NAME : PackageProviderPolicy
35  //
37  class PackageProviderPolicy
38  {
39  public:
41  typedef function<bool ( const std::string &, const Edition &, const Arch & )> QueryInstalledCB;
42 
44  PackageProviderPolicy & queryInstalledCB( QueryInstalledCB queryInstalledCB_r )
45  { _queryInstalledCB = queryInstalledCB_r; return *this; }
46 
48  bool queryInstalled( const std::string & name_r,
49  const Edition & ed_r,
50  const Arch & arch_r ) const;
51 
52  private:
53  QueryInstalledCB _queryInstalledCB;
54  };
56 
58  //
59  // CLASS NAME : PackageProvider
60  //
64  class PackageProvider : private base::NonCopyable
65  {
66  typedef shared_ptr<void> ScopedGuard;
67  typedef callback::SendReport<repo::DownloadResolvableReport> Report;
68 
69  typedef packagedelta::DeltaRpm DeltaRpm;
70 
71  public:
73  PackageProvider( RepoMediaAccess &access,
74  const Package::constPtr & package,
75  const DeltaCandidates & deltas,
76  const PackageProviderPolicy & policy_r = PackageProviderPolicy() );
77  ~PackageProvider();
78 
79  public:
83  ManagedFile providePackage() const;
84 
85  private:
86  ManagedFile doProvidePackage() const;
87  ManagedFile tryDelta( const DeltaRpm & delta_r ) const;
88 
89  private:
90  ScopedGuard newReport() const;
91  Report & report() const;
92  bool progressDeltaDownload( int value ) const;
93  void progressDeltaApply( int value ) const;
94  bool progressPackageDownload( int value ) const;
95  bool failOnChecksumError() const;
96  bool queryInstalled( const Edition & ed_r = Edition() ) const;
97 
98  private:
99  PackageProviderPolicy _policy;
100  Package::constPtr _package;
101  mutable bool _retry;
102  mutable shared_ptr<Report> _report;
103  DeltaCandidates _deltas;
104  RepoMediaAccess & _access;
105  };
107 
109  } // namespace repo
112 } // namespace zypp
114 #endif // ZYPP_SOURCE_PACKAGEPROVIDER_H