124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _DYNCONF_H_INCLUDED_
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#define _DYNCONF_H_INCLUDED_
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/* @(#$Id: dynconf.h,v 1.7 2007-06-20 13:16:11 dockes Exp $ (C) 2004 J.F.Dockes */
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/**
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* Dynamic configuration storage
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*
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* This used to be called "history" because of the initial usage.
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* Used to store some parameters which would fit neither in recoll.conf,
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* basically because they change a lot, nor in the QT preferences file, mostly
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* because they are specific to a configuration directory.
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* Examples:
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* - History of documents selected for preview
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* - Active and inactive external databases (depend on the
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* configuration directory)
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* - ...
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*
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* The storage is performed in a ConfSimple file, with subkeys and
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* encodings which depend on the data stored. Under each section, the keys
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* are sequential numeric, so this basically manages a set of lists.
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*
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*/
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#include <string>
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#include <list>
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#include <utility>
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#include "conftree.h"
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#ifndef NO_NAMESPACES
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using namespace std;
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#endif
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// Entry interface.
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class DynConfEntry {
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public:
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virtual ~DynConfEntry() {}
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virtual bool decode(const string &value) = 0;
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virtual bool encode(string& value) = 0;
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virtual bool equal(const DynConfEntry &other) = 0;
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};
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/** String storage generic object */
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class RclSListEntry : public DynConfEntry {
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public:
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RclSListEntry() {}
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RclSListEntry(const string& v) : value(v) {}
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virtual ~RclSListEntry() {}
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virtual bool decode(const string &enc);
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virtual bool encode(string& enc);
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virtual bool equal(const DynConfEntry& other);
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string value;
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};
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/** The dynamic configuration class */
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class RclDynConf {
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public:
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RclDynConf(const string &fn)
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: m_data(fn.c_str()) {}
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bool ok() {return m_data.getStatus() == ConfSimple::STATUS_RW;}
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string getFilename() {return m_data.getFilename();}
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// Generic methods
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bool eraseAll(const string& sk);
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bool insertNew(const string& sk, DynConfEntry &n, DynConfEntry &s,
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int maxlen = -1);
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template<typename Tp> list<Tp> getList(const string& sk);
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// Specialized methods for simple string lists, designated by the
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// subkey value
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bool enterString(const string sk, const string value, int maxlen = -1);
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list<string> getStringList(const string sk);
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private:
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unsigned int m_mlen;
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ConfSimple m_data;
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};
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template<typename Tp> list<Tp> RclDynConf::getList(const string &sk)
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{
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list<Tp> mlist;
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Tp entry;
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list<string> names = m_data.getNames(sk);
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for (list<string>::const_iterator it = names.begin();
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it != names.end(); it++) {
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string value;
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if (m_data.get(*it, value, sk)) {
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if (!entry.decode(value))
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continue;
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mlist.push_front(entry);
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}
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}
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return mlist;
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}
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// Defined subkeys. Values in dynconf.cpp
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// History
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extern const string docHistSubKey;
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// All external indexes
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extern const string allEdbsSk;
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// Active external indexes
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extern const string actEdbsSk;
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#endif /* _DYNCONF_H_INCLUDED_ */
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