fn collect_logs(rates_file: &Path, topology: &Topology) -> HashMap<OperatorId,HashMap<OperatorInstanceId,Vec<Log>>>
{
    let file = File::open(&rates_file).expect("Cannot open rates file.");
    let reader = BufReader::new(file);
    let mut logs: HashMap<OperatorId,HashMap<OperatorInstanceId,Vec<Log>>> = HashMap::new();
    for line in reader.lines()
    {
        let line = line.unwrap();
        if line.trim().len() == 0 || line.chars().next()==Some('#') {continue;}
        let log: Vec<&str> = line.split(',').map(|x| x.trim()).collect();
        let num_of_instances = u32::from_str(log[2]).expect("Cannot extract number of operator instances.");
        let &(_,inst) = topology.dictionary.get(log[0]).expect("Operator not found in dictionary.");
        // Registered instances must match the provided number
        assert_eq!(num_of_instances,inst);
        // Collect rate information
        let operator_slot = logs.entry(log[0].to_string()).or_insert_with(|| HashMap::new());
        let instance_slot = operator_slot
                            .entry(log[1].to_string())
                            .or_insert_with(|| Vec::new());
        instance_slot.push((u64::from_str(log[3]).expect("Cannot extract epoch timestamp."),
                            f64::from_str(log[4]).expect("Cannot extract true processing rate."),
                            f64::from_str(log[5]).expect("Cannot extract true output rate."),
                            f64::from_str(log[6]).expect("Cannot extract observed processing rate."),
                            f64::from_str(log[7]).expect("Cannot extract observed output rate."))
                    );
    }
    logs
}
/// Parses operator rates from a CSV file and stores them in a dictionary
///
/// # Arguments
///
/// `rates_file`: The path to the CSV file
///
/// `topology`: The topology the rates correspond to
///
/// # Returns
///
/// A mapping from operators to rate logs per instance and epoch
///
/// # Comments
///
/// * The `topology` is only used to validate the given operator IDs and their number of instances
Parses operator rates from a CSV file and stores them in a dictionary
Parses operator rates from a CSV file and stores them in a dictionary
fn collect_logs(rates_file: &Path, topology: &Topology) -> HashMap<OperatorId,HashMap<OperatorInstanceId,Vec<Log>>>
{
    let file = File::open(&rates_file).expect("Cannot open rates file.");
    let reader = BufReader::new(file);
    let mut logs: HashMap<OperatorId,HashMap<OperatorInstanceId,Vec<Log>>> = HashMap::new();
    for line in reader.lines()
    {
        let line = line.unwrap();
        if line.trim().len() == 0 || line.chars().next()==Some('#') {continue;}
        let log: Vec<&str> = line.split(',').map(|x| x.trim()).collect();
        let num_of_instances = u32::from_str(log[2]).expect("Cannot extract number of operator instances.");
        let &(_,inst) = topology.dictionary.get(log[0]).expect("Operator not found in dictionary.");
        // Registered instances must match the provided number
        assert_eq!(num_of_instances,inst);
        // Collect rate information
        let operator_slot = logs.entry(log[0].to_string()).or_insert_with(|| HashMap::new());
        let instance_slot = operator_slot
                            .entry(log[1].to_string())
                            .or_insert_with(|| Vec::new());
        instance_slot.push((u64::from_str(log[3]).expect("Cannot extract epoch timestamp."),
                            f64::from_str(log[4]).expect("Cannot extract true processing rate."),
                            f64::from_str(log[5]).expect("Cannot extract true output rate."),
                            f64::from_str(log[6]).expect("Cannot extract observed processing rate."),
                            f64::from_str(log[7]).expect("Cannot extract observed output rate."))
                    );
    }
    logs
}
fn collect_logs ( rates_file : & Path , topology : & Topology ) -> HashMap < OperatorId , HashMap < OperatorInstanceId , Vec < Log > > > { let file = File :: open ( & rates_file ) . expect ( " " ) ; let reader = BufReader :: new ( file ) ; let mut logs : HashMap < OperatorId , HashMap < OperatorInstanceId , Vec < Log > > > = HashMap :: new ( ) ; for line in reader . lines ( ) { let line = line . unwrap ( ) ; if line . trim ( ) . len ( ) == 0 || line . chars ( ) . next ( ) == Some ( '#' ) { continue ; } let log : Vec < & str > = line . split ( ',' ) . map ( | x | x . trim ( ) ) . collect ( ) ; let num_of_instances = u32 :: from_str ( log [ 2 ] ) . expect ( " " ) ; let & ( _ , inst ) = topology . dictionary . get ( log [ 0 ] ) . expect ( " " ) ; // Registered instances must match the provided number assert_eq ! ( num_of_instances inst ) ; // Collect rate information let operator_slot = logs . entry ( log [ 0 ] . to_string ( ) ) . or_insert_with ( | | HashMap :: new ( ) ) ; let instance_slot = operator_slot . entry ( log [ 1 ] . to_string ( ) ) . or_insert_with ( | | Vec :: new ( ) ) ; instance_slot . push ( ( u64 :: from_str ( log [ 3 ] ) . expect ( " " ) , f64 :: from_str ( log [ 4 ] ) . expect ( " " ) , f64 :: from_str ( log [ 5 ] ) . expect ( " " ) , f64 :: from_str ( log [ 6 ] ) . expect ( " " ) , f64 :: from_str ( log [ 7 ] ) . expect ( " " ) ) ) ; } logs }
Parses operator rates from a CSV file and stores them in a dictionary
Parses operator rates from a CSV file and stores them in a dictionary
rates_file
&Path
topology
&Topology
A mapping from operators to rate logs per instance and epoch
A mapping from operators to rate logs per instance and epoch
rates_file
&Path
topology
&Topology
comments
The `topology` is only used to validate the given operator IDs and their number of instances
The ` topology ` is only used to validate the given operator IDs and their number of instances