ept::popcon::Popcon Class Reference

Maps Packages to IDs and vice-versa. More...

#include <popcon.h>

Inheritance diagram for ept::popcon::Popcon:

Public Member Functions
	Popcon ()
time_t	timestamp () const
	Get the timestamp of when the index was last updated. More...
bool	hasData () const
	Return true if this data source has data, false if it's empty. More...
size_t	submissions () const
	Return the total number of popcon submissions. More...
size_t	size () const
	Get the number of packages in the index. More...
std::string	name (size_t idx) const
	Get a package name by index. More...
float	scoreByIndex (size_t idx) const
	Get the score by index. More...
float	scoreByName (const std::string &name) const
	Get the score structure by package name. More...
float	score (size_t idx) const
	Get the score by index. More...
float	operator[] (int idx) const
	Get the score by index. More...
float	score (const std::string &name) const
	Get the score by name. More...
float	operator[] (const std::string &name) const
	Get the score structure by package name. More...

Detailed Description

Maps Packages to IDs and vice-versa.

This is used in building the Debtags fast index, which works representing tags and packages as int IDs.

Index building works like this:

1. The file all-popcon-results.txt.gz is downloaded from http://popcon.debian.org/all-popcon-results.txt.gz
2. The file is put in either ~/.popcon/all-popcon-results.txt.gz or in /var/lib/popcon/all-popcon-results.txt.gz
3. If the file is newer than the index, it will be automatically used to recompute the scores and rebuild the index.

Constructor & Destructor Documentation

ept::popcon::Popcon::Popcon

(

)

References ept::axi::timestamp().

Member Function Documentation

bool ept::popcon::Popcon::hasData ( ) const

inline

Return true if this data source has data, false if it's empty.

Referenced by TestPopcon::fallbackValues().

std::string ept::popcon::Popcon::name ( size_t  idx) const

inline

Get a package name by index.

If the index is not valid, returns the empty string.

References ept::popcon::Score::offset.

float ept::popcon::Popcon::operator[] ( int  idx) const

inline

Get the score by index.

References scoreByIndex().

float ept::popcon::Popcon::operator[] ( const std::string &  name) const

inline

Get the score structure by package name.

References scoreByName().

float ept::popcon::Popcon::score ( size_t  idx) const

inline

Get the score by index.

References scoreByIndex().

Referenced by TestPopcon::fallbackValues(), and ept::popcon::Local::tfidf().

float ept::popcon::Popcon::score ( const std::string &  name) const

inline

Get the score by name.

References scoreByName().

float ept::popcon::Popcon::scoreByIndex ( size_t  idx) const

inline

Get the score by index.

References ept::popcon::Score::score.

Referenced by operator[](), and score().

float ept::popcon::Popcon::scoreByName

(

const std::string &

name)

const

Get the score structure by package name.

Referenced by operator[](), and score().

size_t ept::popcon::Popcon::size ( ) const

inline

Get the number of packages in the index.

Referenced by TestPopcon::fallbackValues().

size_t ept::popcon::Popcon::submissions ( ) const

inline

Return the total number of popcon submissions.

Referenced by TestPopcon::fallbackValues(), and ept::popcon::Local::tfidf().

time_t ept::popcon::Popcon::timestamp ( ) const

inline

Get the timestamp of when the index was last updated.

Referenced by TestPopcon::fallbackValues().

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The documentation for this class was generated from the following files:

• popcon.h
• popcon.cc