use crate::database::hashmap_store::{
HashMapStore, delete_from_backward_junction, junction_get, junction_remove, junction_set,
};
use crate::entities::File;
use crate::error::RepositoryError;
use crate::types::EntityId;
use crate::{impl_relationship_methods, impl_write_relationship_methods};
use im::HashMap;
use std::sync::RwLock;
use super::file_repository::FileRelationshipField;
use super::file_repository::FileTable;
use super::file_repository::FileTableRO;
pub struct FileHashMapTable<'a> {
store: &'a HashMapStore,
}
impl<'a> FileHashMapTable<'a> {
pub fn new(store: &'a HashMapStore) -> Self {
Self { store }
}
fn resolve_junction(
&self,
field: &FileRelationshipField,
) -> &RwLock<HashMap<EntityId, Vec<EntityId>>> {
match field {
FileRelationshipField::Entity => &self.store.jn_entity_from_file_entity,
FileRelationshipField::Feature => &self.store.jn_feature_from_file_feature,
FileRelationshipField::Field => &self.store.jn_field_from_file_field,
FileRelationshipField::UseCase => &self.store.jn_use_case_from_file_use_case,
}
}
fn hydrate(&self, entity: &mut File) {
entity.feature = junction_get(&self.store.jn_feature_from_file_feature, &entity.id)
.into_iter()
.next();
entity.entity = junction_get(&self.store.jn_entity_from_file_entity, &entity.id)
.into_iter()
.next();
entity.use_case = junction_get(&self.store.jn_use_case_from_file_use_case, &entity.id)
.into_iter()
.next();
entity.field = junction_get(&self.store.jn_field_from_file_field, &entity.id)
.into_iter()
.next();
}
}
impl<'a> FileTable for FileHashMapTable<'a> {
fn create(&mut self, entity: &File) -> Result<File, RepositoryError> {
self.create_multi(std::slice::from_ref(entity))
.map(|v| v.into_iter().next().unwrap())
}
fn create_multi(&mut self, entities: &[File]) -> Result<Vec<File>, RepositoryError> {
let mut created = Vec::with_capacity(entities.len());
let mut file_map = self.store.files.write().unwrap();
for entity in entities {
let new_entity = if entity.id == EntityId::default() {
let id = self.store.next_id("file");
File {
id,
..entity.clone()
}
} else {
if file_map.contains_key(&entity.id) {
return Err(RepositoryError::DuplicateId {
entity: "File",
id: entity.id,
});
}
entity.clone()
};
file_map.insert(new_entity.id, new_entity.clone());
junction_set(
&self.store.jn_entity_from_file_entity,
new_entity.id,
new_entity.entity.into_iter().collect::<Vec<EntityId>>(),
);
junction_set(
&self.store.jn_feature_from_file_feature,
new_entity.id,
new_entity.feature.into_iter().collect::<Vec<EntityId>>(),
);
junction_set(
&self.store.jn_field_from_file_field,
new_entity.id,
new_entity.field.into_iter().collect::<Vec<EntityId>>(),
);
junction_set(
&self.store.jn_use_case_from_file_use_case,
new_entity.id,
new_entity.use_case.into_iter().collect::<Vec<EntityId>>(),
);
created.push(new_entity);
}
Ok(created)
}
fn get(&self, id: &EntityId) -> Result<Option<File>, RepositoryError> {
let file_map = self.store.files.read().unwrap();
match file_map.get(id) {
Some(entity) => {
let mut e = entity.clone();
drop(file_map);
self.hydrate(&mut e);
Ok(Some(e))
}
None => Ok(None),
}
}
fn get_multi(&self, ids: &[EntityId]) -> Result<Vec<Option<File>>, RepositoryError> {
let mut result = Vec::with_capacity(ids.len());
for id in ids {
result.push(self.get(id)?);
}
Ok(result)
}
fn get_all(&self) -> Result<Vec<File>, RepositoryError> {
let file_map = self.store.files.read().unwrap();
let entries: Vec<File> = file_map.values().cloned().collect();
drop(file_map);
let mut result = Vec::with_capacity(entries.len());
for mut entity in entries {
self.hydrate(&mut entity);
result.push(entity);
}
Ok(result)
}
fn update(&mut self, entity: &File) -> Result<File, RepositoryError> {
self.update_multi(std::slice::from_ref(entity))
.map(|v| v.into_iter().next().unwrap())
}
fn update_multi(&mut self, entities: &[File]) -> Result<Vec<File>, RepositoryError> {
let mut file_map = self.store.files.write().unwrap();
for entity in entities {
file_map.insert(entity.id, entity.clone());
}
drop(file_map);
let ids: Vec<EntityId> = entities.iter().map(|e| e.id).collect();
let result = self.get_multi(&ids)?;
Ok(result.into_iter().flatten().collect())
}
fn update_with_relationships(&mut self, entity: &File) -> Result<File, RepositoryError> {
self.update_with_relationships_multi(std::slice::from_ref(entity))
.map(|v| v.into_iter().next().unwrap())
}
fn update_with_relationships_multi(
&mut self,
entities: &[File],
) -> Result<Vec<File>, RepositoryError> {
let mut file_map = self.store.files.write().unwrap();
for entity in entities {
file_map.insert(entity.id, entity.clone());
junction_set(
&self.store.jn_feature_from_file_feature,
entity.id,
entity.feature.into_iter().collect::<Vec<EntityId>>(),
);
junction_set(
&self.store.jn_entity_from_file_entity,
entity.id,
entity.entity.into_iter().collect::<Vec<EntityId>>(),
);
junction_set(
&self.store.jn_use_case_from_file_use_case,
entity.id,
entity.use_case.into_iter().collect::<Vec<EntityId>>(),
);
junction_set(
&self.store.jn_field_from_file_field,
entity.id,
entity.field.into_iter().collect::<Vec<EntityId>>(),
);
}
drop(file_map);
let ids: Vec<EntityId> = entities.iter().map(|e| e.id).collect();
let result = self.get_multi(&ids)?;
Ok(result.into_iter().flatten().collect())
}
fn remove(&mut self, id: &EntityId) -> Result<(), RepositoryError> {
self.remove_multi(std::slice::from_ref(id))
}
fn remove_multi(&mut self, ids: &[EntityId]) -> Result<(), RepositoryError> {
let mut file_map = self.store.files.write().unwrap();
for id in ids {
file_map.remove(id);
junction_remove(&self.store.jn_feature_from_file_feature, id);
junction_remove(&self.store.jn_entity_from_file_entity, id);
junction_remove(&self.store.jn_use_case_from_file_use_case, id);
junction_remove(&self.store.jn_field_from_file_field, id);
delete_from_backward_junction(&self.store.jn_file_from_system_files, id);
}
Ok(())
}
impl_write_relationship_methods!(FileHashMapTable<'a>, FileRelationshipField);
}
pub struct FileHashMapTableRO<'a> {
store: &'a HashMapStore,
}
impl<'a> FileHashMapTableRO<'a> {
pub fn new(store: &'a HashMapStore) -> Self {
Self { store }
}
fn resolve_junction(
&self,
field: &FileRelationshipField,
) -> &RwLock<HashMap<EntityId, Vec<EntityId>>> {
match field {
FileRelationshipField::Entity => &self.store.jn_entity_from_file_entity,
FileRelationshipField::Feature => &self.store.jn_feature_from_file_feature,
FileRelationshipField::Field => &self.store.jn_field_from_file_field,
FileRelationshipField::UseCase => &self.store.jn_use_case_from_file_use_case,
}
}
fn hydrate(&self, entity: &mut File) {
entity.feature = junction_get(&self.store.jn_feature_from_file_feature, &entity.id)
.into_iter()
.next();
entity.entity = junction_get(&self.store.jn_entity_from_file_entity, &entity.id)
.into_iter()
.next();
entity.use_case = junction_get(&self.store.jn_use_case_from_file_use_case, &entity.id)
.into_iter()
.next();
entity.field = junction_get(&self.store.jn_field_from_file_field, &entity.id)
.into_iter()
.next();
}
}
impl<'a> FileTableRO for FileHashMapTableRO<'a> {
fn get(&self, id: &EntityId) -> Result<Option<File>, RepositoryError> {
let file_map = self.store.files.read().unwrap();
match file_map.get(id) {
Some(entity) => {
let mut e = entity.clone();
drop(file_map);
self.hydrate(&mut e);
Ok(Some(e))
}
None => Ok(None),
}
}
fn get_multi(&self, ids: &[EntityId]) -> Result<Vec<Option<File>>, RepositoryError> {
let mut result = Vec::with_capacity(ids.len());
for id in ids {
result.push(self.get(id)?);
}
Ok(result)
}
fn get_all(&self) -> Result<Vec<File>, RepositoryError> {
let file_map = self.store.files.read().unwrap();
let entries: Vec<File> = file_map.values().cloned().collect();
drop(file_map);
let mut result = Vec::with_capacity(entries.len());
for mut entity in entries {
self.hydrate(&mut entity);
result.push(entity);
}
Ok(result)
}
impl_relationship_methods!(FileHashMapTableRO<'a>, FileRelationshipField);
}