[219] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * source.h --
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| 4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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| 5 | *
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[534] | 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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[219] | 9 | *
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[534] | 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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[219] | 24 | * $Id: source.h 534 1999-09-07 04:57:43Z sjboddie $
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| 25 | *
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| 26 | *********************************************************************/
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| 27 |
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| 28 |
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| 29 | #ifndef SOURCE_H
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| 30 | #define SOURCE_H
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| 31 |
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| 32 | #include "gsdlconf.h"
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| 33 | #include "text_t.h"
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| 34 | #include "comtypes.h"
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| 35 |
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| 36 |
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| 37 | class sourceclass {
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| 38 | public:
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| 39 | sourceclass ();
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| 40 | virtual ~sourceclass ();
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| 41 |
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| 42 | // configure should be called once for each configuration line
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| 43 | virtual void configure (const text_t &key, const text_tarray &cfgline);
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| 44 |
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| 45 | // init should be called after all the configuration is done but
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| 46 | // before any other methods are called
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| 47 | virtual bool init (ostream &logout);
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[226] | 48 |
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[249] | 49 | // translate_OID translates OIDs using ".pr", ."fc" etc.
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| 50 | virtual bool translate_OID (const text_t &OIDin, text_t &OIDout,
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| 51 | comerror_t &err, ostream &logout);
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| 52 |
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[226] | 53 | // get_metadata fills out the metadata if possible, if it is not responsable
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| 54 | // for the given OID then it will return false.
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| 55 | virtual bool get_metadata (const text_t &requestParams, const text_t &refParams,
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[271] | 56 | bool getParents, const text_tarray &fields, const text_t &OID,
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| 57 | MetadataInfo_tarray &metadata, comerror_t &err, ostream &logout);
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[259] | 58 |
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| 59 | virtual bool get_document (const text_t &OID, text_t &doc,
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| 60 | comerror_t &err, ostream &logout);
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[219] | 61 | };
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| 62 |
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| 63 |
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| 64 | // The sourceptr class does not 'own' the source. The
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| 65 | // source should be deleted by the code which created it.
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| 66 | class sourceptr {
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| 67 | public:
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| 68 | sourceclass *s;
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| 69 |
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| 70 | sourceptr () {s=NULL;}
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[504] | 71 | ~sourceptr () {}
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[219] | 72 | };
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| 73 |
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[504] | 74 | bool operator==(const sourceptr &x, const sourceptr &y);
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| 75 | bool operator<(const sourceptr &x, const sourceptr &y);
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| 76 |
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[219] | 77 | typedef vector<sourceptr> sourceptrlist;
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| 78 |
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| 79 | // contains a list of sources
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| 80 | class sourcelistclass {
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| 81 | protected:
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| 82 | sourceptrlist sourceptrs;
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| 83 |
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| 84 | public:
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| 85 | // type support for sourcelistclass
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| 86 | typedef sourceptrlist::iterator iterator;
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| 87 | typedef sourceptrlist::const_iterator const_iterator;
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| 88 | typedef sourceptrlist::reference reference;
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| 89 | typedef sourceptrlist::const_reference const_reference;
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| 90 | typedef sourceptrlist::size_type size_type;
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| 91 |
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| 92 | typedef sourceptrlist::difference_type difference_type;
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| 93 | typedef sourceptrlist::const_reverse_iterator const_reverse_iterator;
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| 94 | typedef sourceptrlist::reverse_iterator reverse_iterator;
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| 95 |
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| 96 | // basic container support
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| 97 | iterator begin () {return sourceptrs.begin();}
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| 98 | const_iterator begin () const {return sourceptrs.begin();}
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| 99 | iterator end () {return sourceptrs.end();}
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| 100 | const_iterator end () const {return sourceptrs.end();}
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| 101 |
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| 102 | void erase(iterator pos) {sourceptrs.erase(pos);}
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| 103 | void erase(iterator first, iterator last) {sourceptrs.erase(first, last);}
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| 104 | sourcelistclass &operator=(const sourcelistclass &x)
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| 105 | {sourceptrs=x.sourceptrs;return *this;}
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| 106 |
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| 107 | bool empty () const {return sourceptrs.empty();}
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| 108 | size_type size() const {return sourceptrs.size();}
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| 109 |
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| 110 |
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| 111 | // added functionality
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| 112 | void clear () {sourceptrs.erase(sourceptrs.begin(),sourceptrs.end());}
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| 113 |
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| 114 | // thesource remains the property of the calling code but
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| 115 | // should not be deleted until it is removed from this list.
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| 116 | void addsource (sourceclass *thesource);
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| 117 | };
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| 118 |
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| 119 |
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| 120 |
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| 121 | #endif
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