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/*
* TimeResolver.cpp
*****************************************************************************
* Copyright (C) 2012, bitmovin Softwareentwicklung OG, All Rights Reserved
*
* Email: libdash-dev@vicky.bitmovin.net
*
* This source code and its use and distribution, is subject to the terms
* and conditions of the applicable license agreement.
*****************************************************************************/
#include "TimeResolver.h"
#include "sstream"
using namespace libdash::framework::mpd;
bool TimeResolver::checkTimeInterval(std::string availabilityStartTime, std::string availabilityEndTime)
{
struct tm* startTime = TimeResolver::resolveUTCDateTime(availabilityStartTime);
struct tm* currentTime = TimeResolver::getCurrentUTCTime();
struct tm* endTime = TimeResolver::resolveUTCDateTime(availabilityEndTime);
if (!startTime)
{
if (!endTime)
return true;
if (difftime(mktime(endTime),mktime(currentTime)) > 0)
return true;
}
else
{
if (difftime(mktime(currentTime),mktime(startTime)) > 0)
{
if (!endTime)
return true;
if (difftime(mktime(endTime),mktime(currentTime)) > 0)
return true;
}
}
return false;
}
uint32_t TimeResolver::getCurrentTimeInSec()
{
return mktime(TimeResolver::getCurrentUTCTime());
}
uint32_t TimeResolver::getUTCDateTimeInSec(const std::string& datetime)
{
return mktime(TimeResolver::resolveUTCDateTime(datetime));
}
double TimeResolver::getDurationInSec(const std::string& duration)
{
/* no check for duration with yyyy,dd,mm */
if (duration == "" || duration.substr(0, 2) != "PT")
return 0;
size_t startPos = 2;
size_t endPos = std::string::npos;
uint32_t hours = 0;
uint32_t mins = 0;
double secs = 0;
char designators[] = { 'H', 'M', 'S' };
endPos = duration.find(designators[0], startPos);
if (endPos != std::string::npos)
{
hours = strtol(duration.substr(startPos, endPos - startPos).c_str(), NULL, 10);
startPos = endPos + 1;
}
endPos = duration.find(designators[1], startPos);
if (endPos != std::string::npos)
{
mins = strtol(duration.substr(startPos, endPos - startPos).c_str(), NULL, 10);
startPos = endPos + 1;
}
endPos = duration.find(designators[2], startPos);
if (endPos != std::string::npos)
secs = strtod(duration.substr(startPos, endPos - startPos).c_str(), NULL);
return hours*3600 + mins*60 + secs;
}
struct tm* TimeResolver::resolveUTCDateTime(const std::string& dateTimeString)
{
if (dateTimeString == "")
return NULL;
time_t rawtime;
struct tm* timeInfo;
time ( &rawtime );
timeInfo = gmtime ( &rawtime );
std::string timeString = dateTimeString.substr();
timeString = timeString.substr(0, timeString.size()-1);
std::vector<std::string> dateTime = splitToStr(timeString, 'T');
std::vector<int> dateChunks = splitToI(dateTime.at(0), '-');
std::vector<int> timeChunks = splitToI(dateTime.at(1), ':');
timeInfo->tm_year = dateChunks.at(0) - 1900;
timeInfo->tm_mon = dateChunks.at(1) - 1;
timeInfo->tm_mday = dateChunks.at(2);
timeInfo->tm_hour = timeChunks.at(0);
timeInfo->tm_min = timeChunks.at(1);
timeInfo->tm_sec = timeChunks.at(2);
return timeInfo;
}
struct tm* TimeResolver::getCurrentUTCTime()
{
time_t rawTime;
time(&rawTime);
return gmtime(&rawTime);
}
std::vector<int> TimeResolver::splitToI(const std::string &s, char delim)
{
std::stringstream ss(s);
std::string item;
std::vector<int> integers;
while(std::getline(ss, item, delim))
integers.push_back((int)strtol(item.c_str(), NULL, 10));
return integers;
}
std::vector<std::string> TimeResolver::splitToStr(const std::string &s, char delim)
{
std::stringstream ss(s);
std::string item;
std::vector<std::string> strings;
while(std::getline(ss, item, delim))
strings.push_back(item);
return strings;
}
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