Introduce IpDatabase internal to properly implement IpDatabaseProvider interface.

Author: mashhurs

libs/logstash-bridge/src/main/java/org/elasticsearch/logstashbridge/geoip/IpDatabaseBridge.java

@@ -30,5 +30,10 @@ public ProxyInternal(final IpDatabase delegate) {
         public String getDatabaseType() throws IOException {
             return toInternal().getDatabaseType();
         }
+
+        @Override
+        public IpDatabase toInternal() {
+            return this.internalDelegate;
+        }
     }
 }

libs/logstash-bridge/src/main/java/org/elasticsearch/logstashbridge/geoip/IpDatabaseProviderBridge.java

@@ -26,7 +26,7 @@ default Boolean isValid(String name) {
     }
 
     @FixForMultiProject(description = "What ProjectId should be resolved for multi-project case?")
-    default IpDatabaseBridge getDatabase(String name) {
+    default IpDatabaseBridge.ProxyInternal getDatabase(String name) {
         return new IpDatabaseBridge.ProxyInternal(toInternal().getDatabase(ProjectId.DEFAULT, name));
     }
 
@@ -61,12 +61,12 @@ private AbstractExternal getIpDatabaseProviderBridge() {
 
             @Override
             public Boolean isValid(ProjectId projectId, String name) {
-                return IpDatabaseProviderBridge.AbstractExternal.this.toInternal().isValid(projectId, name);
+                return IpDatabaseProviderBridge.AbstractExternal.this.isValid(name);
             }
 
             @Override
             public IpDatabase getDatabase(ProjectId projectId, String name) {
-                return IpDatabaseProviderBridge.AbstractExternal.this.toInternal().getDatabase(projectId, name);
+                return IpDatabaseProviderBridge.AbstractExternal.this.getDatabase(name).toInternal();
             }
         }
     }