Externalize properties

petclinic-vets-service/src/main/java/org/springframework/samples/petclinic/vets/infrastructure/config/CacheConfig.java

@@ -7,6 +7,7 @@ import org.ehcache.config.units.EntryUnit;
 import org.ehcache.expiry.Duration;
 import org.ehcache.expiry.Expirations;
 import org.ehcache.jsr107.Eh107Configuration;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.cache.JCacheManagerCustomizer;
 import org.springframework.cache.annotation.EnableCaching;
 import org.springframework.context.annotation.Bean;
@@ -21,14 +22,20 @@ import java.util.concurrent.TimeUnit;
 @EnableCaching
 public class CacheConfig {
 
+    @Value("${vets.cache.ttl}")
+    private int cacheTtl;
+
+    @Value("${vets.cache.heap-size}")
+    private int cacheHeapSize;
+
     @Bean
     public JCacheManagerCustomizer cacheManagerCustomizer() {
         return cacheManager -> {
             CacheConfiguration<Object, Object> config = CacheConfigurationBuilder
                 .newCacheConfigurationBuilder(Object.class, Object.class,
                     ResourcePoolsBuilder.newResourcePoolsBuilder()
-                        .heap(100, EntryUnit.ENTRIES))
-                .withExpiry(Expirations.timeToLiveExpiration(Duration.of(60, TimeUnit.SECONDS)))
+                        .heap(cacheHeapSize, EntryUnit.ENTRIES))
+                .withExpiry(Expirations.timeToLiveExpiration(Duration.of(cacheTtl, TimeUnit.SECONDS)))
                 .build();
             cacheManager.createCache("vets", Eh107Configuration.fromEhcacheCacheConfiguration(config));
         };