#ifndef lint
static char rcsid[] = "@(#$Id: history.cpp,v 1.4 2005-11-30 18:10:55 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
#ifndef TEST_HISTORY
#include <stdio.h>
#include <time.h>
#include "history.h"
#include "base64.h"
#include "smallut.h"
#include "debuglog.h"
#ifndef NO_NAMESPACES
using namespace std;
#endif
static const char *docSubkey = "docs";
RclDHistory::RclDHistory(const string &fn, unsigned int mxs)
: m_mlen(mxs), m_data(fn.c_str())
{
}
bool RclDHistory::decodeValue(const string &value, RclDHistoryEntry *e)
{
list<string> vall;
stringToStrings(value, vall);
list<string>::const_iterator it1 = vall.begin();
if (vall.size() < 2)
return false;
e->unixtime = atol((*it1++).c_str());
base64_decode(*it1++, e->fn);
if (vall.size() == 3)
base64_decode(*it1, e->ipath);
else
e->ipath.erase();
return true;
}
bool RclDHistory::enterDocument(const string fn, const string ipath)
{
LOGDEB(("RclDHistory::enterDocument: [%s] [%s] into %s\n",
fn.c_str(), ipath.c_str(), m_data.getFilename().c_str()));
// Encode value part: Unix time + base64 of fn + base64 of ipath
// separated by a space. If ipath is not set, there are only 2 parts
char chartime[20];
time_t now = time(0);
sprintf(chartime, "%ld", (long)now);
string bfn, bipath;
base64_encode(fn, bfn);
base64_encode(ipath, bipath);
string value = string(chartime) + " " + bfn + " " + bipath;
LOGDEB1(("Encoded value [%s] (%d)\n", value.c_str(), value.size()));
// Is this doc already in history ? If it is we remove the old entry
list<string> names = m_data.getNames(docSubkey);
list<string>::const_iterator it;
bool changed = false;
for (it = names.begin(); it != names.end(); it++) {
string oval;
if (!m_data.get(*it, oval, docSubkey)) {
LOGDEB(("No data for %s\n", (*it).c_str()));
continue;
}
RclDHistoryEntry entry;
decodeValue(oval, &entry);
if (entry.fn == fn && entry.ipath == ipath) {
LOGDEB(("Erasing old entry\n"));
m_data.erase(*it, docSubkey);
changed = true;
}
}
// Maybe reget list
if (changed)
names = m_data.getNames(docSubkey);
// How many do we have
if (names.size() >= m_mlen) {
// 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() - m_mlen + 1; i++, it++) {
m_data.erase(*it, docSubkey);
}
}
// Increment highest number
unsigned int hi = names.empty() ? 0 :
(unsigned int)atoi(names.back().c_str());
hi++;
char nname[20];
sprintf(nname, "%010u", hi);
if (!m_data.set(string(nname), value, docSubkey)) {
LOGERR(("RclDHistory::enterDocument: set failed\n"));
return false;
}
return true;
}
list<RclDHistoryEntry> RclDHistory::getDocHistory()
{
list<RclDHistoryEntry> mlist;
RclDHistoryEntry entry;
list<string> names = m_data.getNames(docSubkey);
for (list<string>::const_iterator it = names.begin();
it != names.end(); it++) {
string value;
if (m_data.get(*it, value, docSubkey)) {
if (!decodeValue(value, &entry))
continue;
mlist.push_front(entry);
}
}
return mlist;
}
#else
#include <string>
#include "history.h"
#include "debuglog.h"
#ifndef NO_NAMESPACES
using namespace std;
#endif
int main(int argc, char **argv)
{
RclDHistory hist("toto", 5);
DebugLog::getdbl()->setloglevel(DEBDEB1);
DebugLog::setfilename("stderr");
for (int i = 0; i < 10; i++) {
char docname[100];
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.enterDocument(string(docname), "ipathx");
}
list< pair<string, string> > hlist = hist.getDocHistory();
for (list< pair<string, string> >::const_iterator it = hlist.begin();
it != hlist.end(); it++) {
printf("[%s] [%s]\n", it->first.c_str(), it->second.c_str());
}
}
#endif