feat: Added /cache endpoint that shows cache counts

Author: jruaux

src/main/java/com/redis/cache/demo/MovieController.java

@@ -10,6 +10,8 @@
 import static com.redis.cache.demo.SearchService.FIELD_VOTE_COUNT;
 
 import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
@@ -18,64 +20,76 @@
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestParam;
 
+import com.redis.cache.RedisCache;
+import com.redis.cache.RedisCacheManager;
+
 @Controller
 public class MovieController {
 
-	@Autowired
-	MovieService movieService;
-
-	@Autowired
-	SearchService searchService;
-
-	@GetMapping("/movie/{id}")
-	public String movie(Model model, @PathVariable("id") Integer id) {
-		model.addAttribute("movie", movieService.fetchMovie(id));
-		return "movie";
-	}
-
-	@GetMapping({ "/movies/popular", "/" })
-	public String getPopularMovies(Model model, @RequestParam(defaultValue = "1", name = "page") int page)
-			throws Exception {
-		// Add the movies to the model
-		model.addAttribute("movies", movieService.fetchPopularMovies(page));
-		model.addAttribute("page", page);
-		// Return the view name
-		return "popular";
-	}
-
-	@GetMapping("/movies/top-rated")
-	public String getTopRatedMovies(Model model, @RequestParam(defaultValue = "1", name = "page") int page)
-			throws Exception {
-
-		// Add the movies to the model
-		model.addAttribute("movies", movieService.fetchTopRatedMovies(page));
-		model.addAttribute("page", page);
-
-		// Return the view name
-		return "top-rated";
-	}
-
-	@GetMapping("/movies/upcoming")
-	public String getUpcomingMovies(Model model, @RequestParam(defaultValue = "1", name = "page") int page)
-			throws Exception {
-		// Add the movies to the model
-		model.addAttribute("movies", movieService.fetchUpcomingMovies(page));
-		model.addAttribute("page", page);
-
-		// Return the view name
-		return "upcoming";
-	}
-
-	@GetMapping("/movies/search")
-	public String search(Model model, @RequestParam(name = "query", defaultValue = "") String query) {
-		// Add the movies to the model
-		model.addAttribute("movies", searchService.searchMovies(query));
-		model.addAttribute("query", query);
-		model.addAttribute("fields", Arrays.asList(FIELD_ID, FIELD_POPULARITY, FIELD_RELEASE_DATE, FIELD_RUNTIME,
-				FIELD_STATUS, FIELD_TAGLINE, FIELD_VOTE_AVERAGE, FIELD_VOTE_COUNT));
-
-		// Return the view name
-		return "search";
-	}
+    @Autowired
+    MovieService movieService;
+
+    @Autowired
+    SearchService searchService;
+
+    @Autowired
+    RedisCacheManager cacheManager;
+
+    @GetMapping("/movie/{id}")
+    public String movie(Model model, @PathVariable("id") Integer id) {
+        model.addAttribute("movie", movieService.fetchMovie(id));
+        return "movie";
+    }
+
+    @GetMapping({ "/movies/popular", "/" })
+    public String getPopularMovies(Model model, @RequestParam(defaultValue = "1", name = "page") int page) throws Exception {
+        // Add the movies to the model
+        model.addAttribute("movies", movieService.fetchPopularMovies(page));
+        model.addAttribute("page", page);
+        // Return the view name
+        return "popular";
+    }
+
+    @GetMapping("/movies/top-rated")
+    public String getTopRatedMovies(Model model, @RequestParam(defaultValue = "1", name = "page") int page) throws Exception {
+
+        // Add the movies to the model
+        model.addAttribute("movies", movieService.fetchTopRatedMovies(page));
+        model.addAttribute("page", page);
+
+        // Return the view name
+        return "top-rated";
+    }
+
+    @GetMapping("/movies/upcoming")
+    public String getUpcomingMovies(Model model, @RequestParam(defaultValue = "1", name = "page") int page) throws Exception {
+        // Add the movies to the model
+        model.addAttribute("movies", movieService.fetchUpcomingMovies(page));
+        model.addAttribute("page", page);
+
+        // Return the view name
+        return "upcoming";
+    }
+
+    @GetMapping("/movies/search")
+    public String search(Model model, @RequestParam(name = "query", defaultValue = "") String query) {
+        // Add the movies to the model
+        model.addAttribute("movies", searchService.searchMovies(query));
+        model.addAttribute("query", query);
+        model.addAttribute("fields", Arrays.asList(FIELD_ID, FIELD_POPULARITY, FIELD_RELEASE_DATE, FIELD_RUNTIME, FIELD_STATUS,
+                FIELD_TAGLINE, FIELD_VOTE_AVERAGE, FIELD_VOTE_COUNT));
+
+        // Return the view name
+        return "search";
+    }
+
+    @GetMapping("/cache")
+    public String cacheInfo(Model model) {
+        Map<String, Long> cacheInfo = new HashMap<>();
+        RedisCache cache = (RedisCache) cacheManager.getCache("movie");
+        cacheInfo.put("movie", cache.getCount());
+        model.addAttribute("cacheInfo", cacheInfo);
+        return "cache";
+    }
 
 }

src/main/resources/templates/cache.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
++<html xmlns:th="http://www.thymeleaf.org">
++
++<!-- <head th:insert="~{fragments/base :: head}"></head> -->
++
++<head>
++    <title>Cache Info</title>
++</head>
++<body>
++    <h1>Cache Information</h1>
++    <table>
++        <thead>
++            <tr>
++                <th>Cache Name</th>
++                <th>Count</th>
++            </tr>
++        </thead>
++        <tbody>
++            <tr th:each="entry : ${cacheInfo}">
++                <td th:text="${entry.key}"></td>
++                <td th:text="${entry.value}"></td>
++            </tr>
++        </tbody>
++    </table>
++</body>
++</html>