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use crate::params::*;
use smallvec::SmallVec;
use crate::types::*;
use fxhash::FxHashMap;
use fxhash::FxHashSet;
use log::*;
pub fn screen_refs_filenames<'a>(
identity: f64,
kmer_to_sketch: &KmerToSketch,
query_sketch: &Sketch,
sketch_params: &SketchParams,
ref_sketches: &'a Vec<Sketch>
) -> Vec<&'a String>{
let mut count_hash_map = FxHashMap::default();
for marker in query_sketch.marker_seeds.iter() {
if kmer_to_sketch.contains_key(marker) {
for sketch_id in kmer_to_sketch[marker].iter() {
let count = count_hash_map.entry(sketch_id).or_insert(0);
*count += 1;
}
}
}
let k = if sketch_params.use_aa {
K_MARKER_AA
} else {
K_MARKER_DNA
};
let cutoff = identity.powi(k as i32);
trace!("cutoff screening val {}",cutoff);
let ret = count_hash_map
.iter()
.filter(|x| {
*x.1 > usize::max((cutoff
* usize::min(
ref_sketches[**x.0 as usize].marker_seeds.len(),
query_sketch.marker_seeds.len(),
) as f64) as usize,1)
})
.map(|x| &ref_sketches[**x.0 as usize].file_name)
.collect();
ret
}
pub fn screen_refs(
identity: f64,
kmer_to_sketch: &KmerToSketch,
query_sketch: &Sketch,
sketch_params: &SketchParams,
ref_sketches: &Vec<Sketch>,
) -> FxHashSet<usize> {
let mut count_hash_map = FxHashMap::default();
if query_sketch.marker_seeds.len() < 20{
return (0..ref_sketches.len()).collect();
}
for marker in query_sketch.marker_seeds.iter() {
if kmer_to_sketch.contains_key(marker) {
for sketch_id in kmer_to_sketch[marker].iter() {
let count = count_hash_map.entry(sketch_id).or_insert(0);
*count += 1;
}
}
}
let k = if sketch_params.use_aa {
K_MARKER_AA
} else {
K_MARKER_DNA
};
let cutoff = identity.powi(k as i32);
let ret = count_hash_map
.iter()
.filter(|x| {
*x.1 > usize::max((cutoff
* usize::min(
ref_sketches[**x.0 as usize].marker_seeds.len(),
query_sketch.marker_seeds.len(),
) as f64) as usize,1)
})
.map(|x| **x.0 as usize)
.collect();
ret
}
pub fn kmer_to_sketch_from_refs(ref_sketches: &Vec<Sketch>) -> KmerToSketch {
let max_size: usize = ref_sketches.iter().map(|x| x.marker_seeds.len()).sum();
let mut ret = KmerToSketch::default();
ret.reserve(max_size);
for (i, ref_sketch) in ref_sketches.iter().enumerate() {
for kmer in ref_sketch.marker_seeds.iter() {
let sketch_set = ret.entry(*kmer).or_insert(SmallVec::<[u32; KMER_SK_SMALL_VEC_SIZE]>::new());
sketch_set.push(i as u32);
}
}
ret
}