Add logic to reconcile the levels in a graph.

This commit is contained in:
James Pace 2026-06-28 09:12:55 -04:00
parent 6e714a2325
commit 87ad809e07
4 changed files with 281 additions and 69 deletions

39
src/diagnostic_node.rs Normal file
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@ -0,0 +1,39 @@
//
// Copyright 2026 James Pace
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
//
// This Source Code Form is "Incompatible With Secondary Licenses", as
// defined by the Mozilla Public License, v. 2.0.
//
use crate::DiagnosticStatus;
use anyhow::anyhow;
#[derive(Clone)]
pub enum DiagnosticNode {
Root,
DiagnosticStatus(DiagnosticStatus),
}
impl limbo_graph::NodeValue for DiagnosticNode {}
impl DiagnosticNode {
pub fn from_status(status: DiagnosticStatus) -> Self {
Self::DiagnosticStatus(status)
}
pub fn is_root(&self) -> bool {
match self {
Self::Root => true,
_ => false,
}
}
pub fn value(&self) -> anyhow::Result<&DiagnosticStatus> {
match self {
Self::DiagnosticStatus(value) => Ok(value),
_ => Err(anyhow!("Can't get value of root key.")),
}
}
}

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@ -12,9 +12,14 @@ use alloc::borrow::ToOwned;
use alloc::collections::BTreeMap;
use alloc::string::String;
use alloc::vec::Vec;
use core::default::Default;
#[derive(Clone, PartialEq)]
use crate::name_parsing::{get_child_name, get_parent_names, name_is_basic};
#[derive(Clone, PartialOrd, PartialEq, Default)]
pub enum DiagnosticLevel {
#[default]
UNSET,
OK,
WARN,
ERROR,
@ -50,7 +55,7 @@ impl DiagnosticStatus {
}
pub fn from_name(name: String) -> Self {
let level = DiagnosticLevel::STALE;
let level = DiagnosticLevel::UNSET;
let message = "";
let hardware_id = "";
let values = BTreeMap::<String, String>::new();
@ -93,40 +98,15 @@ impl DiagnosticStatus {
}
pub fn name_is_basic(&self) -> bool {
// A basic name is one that doesn't have slashes in it other than the
// first character.
let is_not_basic = self
.name
.strip_prefix("/")
.unwrap_or(&self.name)
.contains("/");
return !is_not_basic;
name_is_basic(&self.name)
}
pub fn get_parent_names(&self) -> Vec<String> {
if self.name_is_basic() {
return Vec::<String>::new();
}
let split: Vec<String> = self
.name()
.split("/")
.map(|x| x.to_owned())
.filter(|x| !x.is_empty())
.collect();
return split
.iter()
.take(split.len() - 1)
.map(|x| x.to_owned())
.collect();
get_parent_names(&self.name)
}
pub fn get_child_name(&self) -> String {
if self.name_is_basic() {
return self.name();
}
let split: Vec<String> = self.name().split("/").map(|x| x.to_owned()).collect();
return split.last().unwrap().clone();
get_child_name(&self.name)
}
pub fn copy_with_child_name(&self) -> Self {
@ -135,6 +115,12 @@ impl DiagnosticStatus {
return to_return;
}
pub fn copy_with_new_level(&self, level: DiagnosticLevel) -> Self {
let mut to_return: Self = self.clone();
to_return.level = level;
return to_return;
}
fn clean_name(name: &str) -> String {
// Remove prefix "/"
let without_prefix = name.strip_prefix("/").unwrap_or(name);

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@ -9,12 +9,6 @@
// defined by the Mozilla Public License, v. 2.0.
//
// Take in list of diagnostic statuses
// For each status:
// 1. Parse name into level, splitting on /
// 2. Cycle through current tree for each level from above.
// 1. If level from above is missing add it.
// 2. If present, keep looking down.
// Once all elements added, start at the edge nodes and travel up
// to mark levels of parent nodes.
// Depth first search from top to build new vector to return.
@ -24,7 +18,9 @@
#![allow(unused_imports)]
extern crate alloc;
mod diagnostic_node;
mod diagnostic_status;
mod name_parsing;
use anyhow::anyhow;
@ -36,29 +32,8 @@ use alloc::vec::Vec;
pub use crate::diagnostic_status::*;
// TODO: Make this not public.
#[derive(Clone)]
pub enum DiagnosticNode {
Root,
DiagnosticStatus(DiagnosticStatus),
}
impl limbo_graph::NodeValue for DiagnosticNode {}
impl DiagnosticNode {
pub fn is_root(&self) -> bool {
match self {
Self::Root => true,
_ => false,
}
}
pub fn value(&self) -> Option<&DiagnosticStatus> {
match self {
Self::DiagnosticStatus(value) => Some(value),
_ => None,
}
}
}
use crate::diagnostic_node::*;
use crate::name_parsing::*;
pub struct DiagnosticGraph {
graph: limbo_graph::Graph<DiagnosticNode>,
@ -77,11 +52,8 @@ impl DiagnosticGraph {
pub fn value_of(&self, key: &limbo_graph::Key) -> anyhow::Result<DiagnosticStatus> {
let graph_value = self.graph.value_of(key)?;
let result = graph_value.value();
if result.is_none() {
return Err(anyhow!("Can't get value of root key."));
}
Ok(result.unwrap().clone())
let result = graph_value.value()?;
Ok(result.clone())
}
pub fn children_of(&self, key: &limbo_graph::Key) -> anyhow::Result<Vec<limbo_graph::Key>> {
@ -89,11 +61,14 @@ impl DiagnosticGraph {
Ok(result)
}
pub fn child_of_with_name(
pub fn child_of_which_has_name(
&self,
parent: &limbo_graph::Key,
desired_child_name: &str,
) -> anyhow::Result<Option<limbo_graph::Key>> {
if !name_is_basic(&desired_child_name.to_owned()) {
return Err(anyhow!("desired child name must be basic."));
}
let all_children = self.children_of(parent)?;
for child in all_children.iter() {
let child_name = self.value_of(&child)?.name();
@ -101,10 +76,41 @@ impl DiagnosticGraph {
return Ok(Some(child.clone()));
}
}
return Ok(None);
}
pub fn key_from_full_name(
&self,
full_name: &String,
) -> anyhow::Result<Option<limbo_graph::Key>> {
let name_as_vec = split_name(&full_name);
let mut cur_base_key = self.graph.root_key();
for cur_name in name_as_vec.iter() {
let key_of_cur_name = self.child_of_which_has_name(&cur_base_key, &cur_name)?;
if key_of_cur_name.is_none() {
return Ok(None);
}
cur_base_key = key_of_cur_name.unwrap();
}
return Ok(Some(cur_base_key));
}
pub fn value_from_name(
&self,
full_name: &String,
) -> anyhow::Result<Option<(DiagnosticStatus, limbo_graph::Key)>> {
let key = self.key_from_full_name(full_name)?;
if key.is_none() {
return Ok(None);
}
let key = key.unwrap();
let value = self.value_of(&key)?;
return Ok(Some((value, key)));
}
pub fn add_status(&mut self, status: DiagnosticStatus) -> anyhow::Result<()> {
// If I'm basic I just need to be added as a child of the root.
if status.name_is_basic() {
@ -138,7 +144,7 @@ impl DiagnosticGraph {
// A child node can't be root.
return Err(anyhow!("A child node can't be root!"));
}
if child_node.value().unwrap().name() == *parent_name {
if child_node.value()?.name() == *parent_name {
// The child node matched the parent we were looking for.
// Continue to find the next parent, with this key as the
// current key.
@ -183,6 +189,42 @@ impl DiagnosticGraph {
}
Ok(())
}
pub fn reconcile_levels(&mut self) -> anyhow::Result<()> {
let leaf_keys = self.graph.find_leaf_keys()?;
'leaf_key_loop: for leaf_key in leaf_keys.iter() {
let mut child_key = leaf_key.clone();
while child_key != self.graph.root_key() {
let parent_key_opt = self.graph.parent_of(&child_key)?;
if parent_key_opt == None || parent_key_opt == Some(self.graph.root_key()) {
continue 'leaf_key_loop;
}
let parent_key = parent_key_opt.unwrap();
// Reconcile the parent values.
let parent_node = self.graph.value_of(&parent_key)?;
let parent_value = parent_node.value()?;
let child_node = self.graph.value_of(&child_key)?;
let child_value = child_node.value()?;
// if child level is worse than parent key.
// reset parent level.
if child_value.level() > parent_value.level() {
let replacement_parent = DiagnosticNode::from_status(
parent_value.copy_with_new_level(child_value.level()),
);
self.graph
.replace_value_of(&parent_key, replacement_parent)?;
}
// Push up the graph.
child_key = parent_key;
}
}
Ok(())
}
}
#[cfg(test)]
@ -205,6 +247,21 @@ mod tests {
)
}
fn make_a_status_with_name_and_level(name: &str, level: DiagnosticLevel) -> DiagnosticStatus {
let level = level;
let message = "";
let hardware_id = "";
let values = BTreeMap::<String, String>::new();
DiagnosticStatus::new(
level,
name.to_owned(),
message.to_owned(),
hardware_id.to_owned(),
values,
)
}
#[test]
fn add_one_to_graph() -> anyhow::Result<()> {
let mut graph = DiagnosticGraph::new();
@ -258,16 +315,64 @@ mod tests {
assert!(children_of_a_names.any(|x| x == "b"));
assert!(children_of_a_names.any(|x| x == "d"));
let b_key = graph.child_of_with_name(&root_children[0], "b")?;
let b_key = graph.child_of_which_has_name(&root_children[0], "b")?;
assert!(b_key.is_some());
let b_children = graph.children_of(&b_key.unwrap())?;
assert!(b_children.len() == 1);
let d_key = graph.child_of_with_name(&root_children[0], "d")?;
let d_key = graph.child_of_which_has_name(&root_children[0], "d")?;
assert!(d_key.is_some());
let d_children = graph.children_of(&d_key.unwrap())?;
assert!(d_children.len() == 2);
Ok(())
}
#[test]
fn key_from_name() -> anyhow::Result<()> {
let statuses = vec![
make_a_status_with_name("/a"),
make_a_status_with_name("/a/b"),
make_a_status_with_name("/a/d/e"),
make_a_status_with_name("/a/d"),
];
let mut graph = DiagnosticGraph::new();
graph.add_status_vec(&statuses)?;
let key_for_a = graph.key_from_full_name(&"/a".to_owned())?;
assert!(key_for_a == Some(1));
let key_for_e = graph.key_from_full_name(&"/a/d/e".to_owned())?;
assert!(key_for_e == Some(4));
let not_in_graph = graph.key_from_full_name(&"/a/b/c".to_owned())?;
assert!(not_in_graph == None);
Ok(())
}
#[test]
fn reconcile_graph() -> anyhow::Result<()> {
let statuses = vec![
make_a_status_with_name_and_level("/a", DiagnosticLevel::UNSET),
make_a_status_with_name_and_level("/a/b", DiagnosticLevel::UNSET),
make_a_status_with_name_and_level("/a/b/c", DiagnosticLevel::OK),
make_a_status_with_name_and_level("/a/d/e", DiagnosticLevel::WARN),
make_a_status_with_name_and_level("/a/d", DiagnosticLevel::WARN),
make_a_status_with_name_and_level("/a/d/f", DiagnosticLevel::OK),
];
let mut graph = DiagnosticGraph::new();
graph.add_status_vec(&statuses)?;
graph.reconcile_levels()?;
let (a_status, _) = graph.value_from_name(&"/a".to_owned())?.unwrap();
assert!(a_status.level() == DiagnosticLevel::WARN);
let (d_status, _) = graph.value_from_name(&"/a/d".to_owned())?.unwrap();
assert!(d_status.level() == DiagnosticLevel::WARN);
Ok(())
}
}

82
src/name_parsing.rs Normal file
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@ -0,0 +1,82 @@
//
// Copyright 2026 James Pace
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
//
// This Source Code Form is "Incompatible With Secondary Licenses", as
// defined by the Mozilla Public License, v. 2.0.
//
use alloc::borrow::ToOwned;
use alloc::string::String;
use alloc::vec::Vec;
pub fn name_is_basic(name: &String) -> bool {
// A basic name is one that doesn't have slashes in it other than the
// first character.
let is_not_basic = name.strip_prefix("/").unwrap_or(name).contains("/");
return !is_not_basic;
}
pub fn get_parent_names(name: &String) -> Vec<String> {
if name_is_basic(&name) {
return Vec::<String>::new();
}
let split: Vec<String> = name
.split("/")
.map(|x| x.to_owned())
.filter(|x| !x.is_empty())
.collect();
return split
.iter()
.take(split.len() - 1)
.map(|x| x.to_owned())
.collect();
}
pub fn get_child_name(name: &String) -> String {
if name_is_basic(&name) {
return name.clone();
}
let split: Vec<String> = name.split("/").map(|x| x.to_owned()).collect();
return split.last().unwrap().clone();
}
pub fn split_name(name: &String) -> Vec<String> {
name.split("/")
.map(|x| x.to_owned())
.filter(|x| !x.is_empty())
.collect()
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_is_basic() {
assert!(name_is_basic(&"a".to_owned()));
assert!(name_is_basic(&"/a".to_owned()));
assert!(!name_is_basic(&"/a/b".to_owned()));
}
#[test]
fn test_get_names() {
let name = "/a/b/c";
let parent_names = get_parent_names(&name.to_owned());
assert!(parent_names[0] == "a");
assert!(parent_names[1] == "b");
let child_name = get_child_name(&name.to_owned());
assert!(child_name == "c");
let split = split_name(&name.to_owned());
assert!(split[0] == "a");
assert!(split[1] == "b");
assert!(split[2] == "c");
}
}