mendrika261/s5-prog-searchengine

Search products using natural language

Overview 🔮

Make search over products using natural language [french only].

Screen.Recording.2024-02-27.at.20.45.59.mov

How it works ℹ️

Keywords are extracted from the query, labeled and translated into SQL queries.

Example ⤵️

Query:

top 2 meilleur qualité de légumes et fruit supérieure ou égale à 7 avec un prix entre 3000 et 5000

Keywords extracted: (*key is index of the word in the query)

Adjectives: (1)
    {
        6=Adjective{id=0, name='meilleur', effect='+'}
    }
Categories: (2)
    {
        26=Category{id=1, name='légume'},
        37=Category{id=0, name='fruit'}
    }
Criteria: (2)
    {
        15=Criteria{id=2, name='qualité', label='quality', typeCriteria='numeric', bestValue='+'},
        75=Criteria{id=0, name='prix', label='price', typeCriteria='numeric', bestValue='-'}
    }
Comparators: (3)
    {
        43=Comparator{id=0, name='supérieur', value='>', parameterType='numeric', parameterNumber=1},
        57=Comparator{id=2, name='égal', value='=', parameterType='numeric', parameterNumber=1},
        80=Comparator{id=1, name='entre', value='BETWEEN', parameterType='numeric', parameterNumber=2}
    }
Products: (0){}

SQL Query:

SELECT *, c.name AS category_name, +(+quality / COALESCE(NULLIF(+price,0),1))  as priority FROM product p JOIN category c ON c.id = p.category_id WHERE (category_id = 1 OR category_id = 0) AND quality > 7 OR  (price = 7 AND price BETWEEN 3000 AND 5000) ORDER BY priority DESC LIMIT 2

How to use it 🛠

Required java >= 17 and maven installed

• After cloning the repository, run the following command to install the required packages:

mvn clean install

• To run the application, run the following command:

mvn spring-boot:run

• Insert rows in data.sql into the database
• The application will be available at the following address:http://localhost:8080/search