OPeNDAP Hyrax Back End Server (BES)  Updated for version 3.8.3
BESUncompressManager.h
Go to the documentation of this file.
1 // BESUncompressManager.h
2 
3 // This file is part of bes, A C++ back-end server implementation framework
4 // for the OPeNDAP Data Access Protocol.
5 
6 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research
7 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
8 //
9 // This library is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU Lesser General Public
11 // License as published by the Free Software Foundation; either
12 // version 2.1 of the License, or (at your option) any later version.
13 //
14 // This library is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // Lesser General Public License for more details.
18 //
19 // You should have received a copy of the GNU Lesser General Public
20 // License along with this library; if not, write to the Free Software
21 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 //
23 // You can contact University Corporation for Atmospheric Research at
24 // 3080 Center Green Drive, Boulder, CO 80301
25 
26 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
27 // Please read the full copyright statement in the file COPYRIGHT_UCAR.
28 //
29 // Authors:
30 // pwest Patrick West <pwest@ucar.edu>
31 // jgarcia Jose Garcia <jgarcia@ucar.edu>
32 
33 #ifndef I_BESUncompressManager_h
34 #define I_BESUncompressManager_h 1
35 
36 #include <map>
37 #include <string>
38 
39 using std::map ;
40 using std::string ;
41 
42 #include "BESObj.h"
43 
44 class BESCache ;
45 
46 typedef void (*p_bes_uncompress)( const string &src, const string &target ) ;
47 
67 {
68 private:
69  static BESUncompressManager * _instance ;
70  map< string, p_bes_uncompress > _uncompress_list ;
71  unsigned int _retry ; // milleseconds
72  unsigned int _num_tries ;
73 
74  typedef map< string, p_bes_uncompress >::const_iterator UCIter ;
75  typedef map< string, p_bes_uncompress >::iterator UIter ;
76 protected:
77  BESUncompressManager(void) ;
78 public:
79  virtual ~BESUncompressManager(void) {}
80 
81  virtual bool add_method( const string &name,
82  p_bes_uncompress method ) ;
83  virtual bool remove_method( const string &name ) ;
84  virtual p_bes_uncompress find_method( const string &name ) ;
85 
86  virtual string get_method_names() ;
87 
88  virtual bool uncompress( const string &src,
89  string &target,
90  BESCache &cache ) ;
91 
92  virtual void dump( ostream &strm ) const ;
93 
94  static BESUncompressManager * TheManager() ;
95 };
96 
97 #endif // I_BESUncompressManager_h
98 
static BESUncompressManager * TheManager()
virtual bool remove_method(const string &name)
removes a uncompress method from the list
virtual void dump(ostream &strm) const
dumps information about this object
virtual ~BESUncompressManager(void)
Implementation of a caching mechanism.
Definition: BESCache.h:58
Base object for bes objects.
Definition: BESObj.h:52
List of all registered uncompress methods.
virtual bool uncompress(const string &src, string &target, BESCache &cache)
find the method that can uncompress the specified src and pass control to that method.
virtual string get_method_names()
returns the comma separated list of all uncompression methods currently registered.
virtual bool add_method(const string &name, p_bes_uncompress method)
add a uncompress method to the list
virtual p_bes_uncompress find_method(const string &name)
returns the uncompression method specified
void(* p_bes_uncompress)(const string &src, const string &target)
BESUncompressManager(void)
constructs an uncompression manager adding gz, z, and bz2 uncompression methods by default...