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dynconf.cpp    227 lines (195 with data), 5.8 kB

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/* Copyright (C) 2005 J.F.Dockes
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef TEST_HISTORY
#include "safeunistd.h"
#include "dynconf.h"
#include "base64.h"
#include "smallut.h"
#include "log.h"
using namespace std;
// Well known keys for history and external indexes.
const string docHistSubKey = "docs";
const string allEdbsSk = "allExtDbs";
const string actEdbsSk = "actExtDbs";
const string advSearchHistSk = "advSearchHist";
RclDynConf::RclDynConf(const std::string &fn)
: m_data(fn.c_str())
{
if (m_data.getStatus() != ConfSimple::STATUS_RW) {
// Maybe the config dir is readonly, in which case we try to
// open readonly, but we must also handle the case where the
// history file does not exist
if (access(fn.c_str(), 0) != 0) {
m_data = ConfSimple(string(), 1);
} else {
m_data = ConfSimple(fn.c_str(), 1);
}
}
}
bool RclDynConf::insertNew(const string &sk, DynConfEntry &n, DynConfEntry &s,
int maxlen)
{
if (!rw()) {
LOGDEB("RclDynConf::insertNew: not writable\n");
return false;
}
// Is this doc already in list ? If it is we remove the old entry
vector<string> names = m_data.getNames(sk);
vector<string>::const_iterator it;
bool changed = false;
for (it = names.begin(); it != names.end(); it++) {
string oval;
if (!m_data.get(*it, oval, sk)) {
LOGDEB("No data for " << *it << "\n");
continue;
}
s.decode(oval);
if (s.equal(n)) {
LOGDEB("Erasing old entry\n");
m_data.erase(*it, sk);
changed = true;
}
}
// Maybe reget things
if (changed)
names = m_data.getNames(sk);
// Need to prune ?
if (maxlen > 0 && names.size() >= (unsigned int)maxlen) {
// Need to erase entries until we're back to size. Note that
// we don't ever reset numbers. Problems will arise when
// history is 4 billion entries old
it = names.begin();
for (unsigned int i = 0; i < names.size() - maxlen + 1; i++, it++) {
m_data.erase(*it, sk);
}
}
// Increment highest number
unsigned int hi = names.empty() ? 0 :
(unsigned int)atoi(names.back().c_str());
hi++;
char nname[20];
sprintf(nname, "%010u", hi);
string value;
n.encode(value);
LOGDEB1("Encoded value [" << value << "] (" << value.size() << ")\n");
if (!m_data.set(string(nname), value, sk)) {
LOGERR("RclDynConf::insertNew: set failed\n");
return false;
}
return true;
}
bool RclDynConf::eraseAll(const string &sk)
{
if (!rw()) {
LOGDEB("RclDynConf::eraseAll: not writable\n");
return false;
}
for (const auto& nm : m_data.getNames(sk)) {
m_data.erase(nm, sk);
}
return true;
}
// Specialization for plain strings ///////////////////////////////////
bool RclDynConf::enterString(const string sk, const string value, int maxlen)
{
if (!rw()) {
LOGDEB("RclDynConf::enterString: not writable\n");
return false;
}
RclSListEntry ne(value);
RclSListEntry scratch;
return insertNew(sk, ne, scratch, maxlen);
}
#else
#include <string>
#include <iostream>
#include "history.h"
#include "log.h"
#ifndef NO_NAMESPACES
using namespace std;
#endif
static string thisprog;
static string usage =
"trhist [opts] <filename>\n"
" [-s <subkey>]: specify subkey (default: RclDynConf::docHistSubKey)\n"
" [-e] : erase all\n"
" [-a <string>] enter string (needs -s, no good for history entries\n"
"\n"
;
static void
Usage(void)
{
cerr << thisprog << ": usage:\n" << usage;
exit(1);
}
static int op_flags;
#define OPT_e 0x2
#define OPT_s 0x4
#define OPT_a 0x8
int main(int argc, char **argv)
{
string sk = "docs";
string value;
thisprog = argv[0];
argc--; argv++;
while (argc > 0 && **argv == '-') {
(*argv)++;
if (!(**argv))
/* Cas du "adb - core" */
Usage();
while (**argv)
switch (*(*argv)++) {
case 'a': op_flags |= OPT_a; if (argc < 2) Usage();
value = *(++argv); argc--;
goto b1;
case 's': op_flags |= OPT_s; if (argc < 2) Usage();
sk = *(++argv); argc--;
goto b1;
case 'e': op_flags |= OPT_e; break;
default: Usage(); break;
}
b1: argc--; argv++;
}
if (argc != 1)
Usage();
string filename = *argv++;argc--;
RclDynConf hist(filename, 5);
DebugLog::getdbl()->setloglevel(DEBDEB1);
DebugLog::setfilename("stderr");
if (op_flags & OPT_e) {
hist.eraseAll(sk);
} else if (op_flags & OPT_a) {
if (!(op_flags & OPT_s))
Usage();
hist.enterString(sk, value);
} else {
for (int i = 0; i < 10; i++) {
char docname[200];
sprintf(docname, "A very long document document name"
"is very long indeed and this is the end of "
"it here and exactly here:\n%d", i);
hist.enterDoc(string(docname), "ipathx");
}
list<RclDHistoryEntry> hlist = hist.getDocHistory();
for (list<RclDHistoryEntry>::const_iterator it = hlist.begin();
it != hlist.end(); it++) {
printf("[%ld] [%s] [%s]\n", it->unixtime,
it->fn.c_str(), it->ipath.c_str());
}
}
}
#endif