query.cpp

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// Copyright (c) 2009, Willow Garage, Inc.
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//       contributors may be used to endorse or promote products derived from
//       this software without specific prior written permission.
// 
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#include "rosbag/query.h"
#include "rosbag/bag.h"
 
using std::map;
using std::string;
using std::vector;
using std::multiset;
 
namespace rosbag {
 
// Query
 
Query::Query(boost::function<bool(ConnectionInfo const*)>& query, ros::Time const& start_time, ros::Time const& end_time)
        : query_(query), start_time_(start_time), end_time_(end_time)
{
}
 
boost::function<bool(ConnectionInfo const*)> const& Query::getQuery() const {
        return query_;
}
 
ros::Time const& Query::getStartTime() const { return start_time_; }
ros::Time const& Query::getEndTime()   const { return end_time_;   }
 
// TopicQuery
 
TopicQuery::TopicQuery(std::string const& topic) {
    topics_.push_back(topic);
}
 
TopicQuery::TopicQuery(std::vector<std::string> const& topics) : topics_(topics) { }
 
bool TopicQuery::operator()(ConnectionInfo const* info) const {
    return std::find(std::begin(topics_), std::end(topics_), info->topic) != std::end(topics_);
}
 
// TypeQuery
 
TypeQuery::TypeQuery(std::string const& type) {
    types_.push_back(type);
}
 
TypeQuery::TypeQuery(std::vector<std::string> const& types) : types_(types) { }
 
bool TypeQuery::operator()(ConnectionInfo const* info) const {
    return std::find(std::begin(types_), std::end(types_), info->datatype) != std::end(types_);
}
 
// BagQuery
 
BagQuery::BagQuery(Bag const* _bag, Query const& _query, uint32_t _bag_revision) : bag(_bag), query(_query), bag_revision(_bag_revision) {
}
 
// MessageRange
 
MessageRange::MessageRange(std::multiset<IndexEntry>::const_iterator const& _begin,
                           std::multiset<IndexEntry>::const_iterator const& _end,
                           ConnectionInfo const* _connection_info,
                           BagQuery const* _bag_query)
        : begin(_begin), end(_end), connection_info(_connection_info), bag_query(_bag_query)
{
}
 
// ViewIterHelper
 
ViewIterHelper::ViewIterHelper(std::multiset<IndexEntry>::const_iterator _iter, MessageRange const* _range)
        : iter(_iter), range(_range)
{
}
 
bool ViewIterHelperCompare::operator()(ViewIterHelper const& a, ViewIterHelper const& b) {
        return (a.iter)->time > (b.iter)->time;
}
 
} // namespace rosbag