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#![allow(dead_code)]
pub mod config;
pub mod enumerate;
pub mod filter;
pub mod graph;
pub mod graph_ops;
pub mod order;
use std::io;
pub use crate::graph::Graph;
pub use config::{Config, Enumeration, Filter, Order};
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error("error while parsing graph file")]
ParseGraph {
#[from]
source: io::Error,
},
#[error("error while parsing GDL graph")]
ParseGdlGraph {
#[from]
source: gdl::graph::GraphHandlerError,
},
#[error("error while creating graph")]
CreateGraph {
#[from]
source: ::graph::Error,
},
}
pub fn find(data_graph: &Graph, query_graph: &Graph, config: impl Into<Config>) -> usize {
find_with(data_graph, query_graph, |_| {}, config)
}
pub fn find_with<F>(
data_graph: &Graph,
query_graph: &Graph,
action: F,
config: impl Into<Config>,
) -> usize
where
F: FnMut(&[usize]),
{
let config = config.into();
let mut candidates = match config.filter {
Filter::Ldf => filter::ldf_filter(data_graph, query_graph).unwrap_or_default(),
Filter::Gql => filter::gql_filter(data_graph, query_graph).unwrap_or_default(),
Filter::Nlf => filter::nlf_filter(data_graph, query_graph).unwrap_or_default(),
};
candidates.sort();
let order = match config.order {
Order::Gql => order::gql_order(data_graph, query_graph, &candidates),
};
match config.enumeration {
Enumeration::Gql => {
enumerate::gql_with(data_graph, query_graph, &candidates, &order, action)
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::graph::GdlGraph;
use trim_margin::MarginTrimmable;
fn graph(gdl: &str) -> GdlGraph {
gdl.trim_margin().unwrap().parse::<GdlGraph>().unwrap()
}
const TEST_GRAPH: &str = "
|(n0:L0)
|(n1:L1)
|(n2:L2)
|(n3:L1)
|(n4:L2)
|(n0)-->(n1)
|(n0)-->(n2)
|(n1)-->(n2)
|(n1)-->(n3)
|(n2)-->(n4)
|(n3)-->(n4)
|";
#[test]
fn test_find() {
let data_graph = graph(TEST_GRAPH);
let query_graph = graph(
"
|(n0:L2),(n1:L1),(n2:L1)
|(n0)-->(n1)
|(n1)-->(n2)
|",
);
assert_eq!(find(&data_graph, &query_graph, Config::default()), 2)
}
#[test]
fn test_find_with() {
let data_graph = graph(TEST_GRAPH);
let query_graph = graph(
"
|(n0:L2),(n1:L1),(n2:L1)
|(n0)-->(n1)
|(n1)-->(n2)
|",
);
let mut embeddings = Vec::new();
let count = find_with(
&data_graph,
&query_graph,
|embedding| embeddings.push(Vec::from(embedding)),
Config::default(),
);
assert_eq!(count, 2);
assert_eq!(embeddings[0], vec![2, 1, 3]);
assert_eq!(embeddings[1], vec![4, 3, 1])
}
}