87 lines
3.0 KiB
Java
87 lines
3.0 KiB
Java
package com.camillepradel.movierecommender.controller;
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import java.util.Arrays;
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import java.util.LinkedList;
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import java.util.List;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.servlet.ModelAndView;
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import com.camillepradel.movierecommender.model.Genre;
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import com.camillepradel.movierecommender.model.Movie;
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import java.net.ConnectException;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.neo4j.driver.v1.Record;
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import org.neo4j.driver.v1.Session;
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import org.neo4j.driver.v1.StatementResult;
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@Controller
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public class MainController {
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@RequestMapping("/hello")
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public ModelAndView showMessage(
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@RequestParam(value = "name", required = false, defaultValue = "World") String name) {
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System.out.println("in controller");
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ModelAndView mv = new ModelAndView("helloworld");
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mv.addObject("name", name);
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return mv;
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}
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public List<Movie>getMoviesNeo4JByUser (Integer userId){
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List<Movie> movies = new LinkedList<Movie>();
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String oldMovie=null;
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int id=0;
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StatementResult result = null;
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try {
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if (userId != null && userId >=0 ){
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result = Neo4jConnector.getInstance().getConnection().run( "MATCH (me:User { id: "+userId+" })-[:RATED]->(movie:Movie) -[:CATEGORIZED_AS]->(g:Genre) RETURN movie.title as movies, collect(g.name) as genre;" );
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}
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else{
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result = Neo4jConnector.getInstance().getConnection().run( "MATCH (m:Movie) -[:CATEGORIZED_AS]->(g:Genre) RETURN m.title as movies, collect(g.name) as genre;" );
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}
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} catch (ConnectException ex) {
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Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex);
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}
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finally{
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Neo4jConnector.getInstance().close();
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}
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while ( result.hasNext() )
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{
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Record record = result.next();
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String[] listGenre = record.get("genre").toString().split(",");
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List<Genre> listTypeGenre = new LinkedList<Genre>();
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for(String g : listGenre){
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if(g != null)
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listTypeGenre.add(new Genre(id, g.replace("\"", "").replace("[", "").replace("]", "")));
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}
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movies.add(new Movie(id, record.get("movies").asString(), (listTypeGenre.isEmpty())?null:listTypeGenre ) );
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id+=1;
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}
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return movies;
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}
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@RequestMapping("/movies")
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public ModelAndView showMovies(
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@RequestParam(value = "user_id", required = false) Integer userId) {
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List<Movie> movies = getMoviesNeo4JByUser(userId);
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ModelAndView mv = new ModelAndView("movies");
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mv.addObject("userId", userId);
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mv.addObject("movies", movies);
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return mv;
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}
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}
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