GraphApiException.create() logs unmapped errors on log-level INFO

diff --git a/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java b/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java
index bd02565..ee62a93 100644 (file)
--- a/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java
+++ b/src/main/java/de/juplo/facebook/exceptions/GraphApiException.java
@@ -11,6 +11,8 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import java.io.IOException;
 import java.io.InputStream;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.security.oauth2.common.exceptions.OAuth2Exception;
 
 /**
@@ -20,6 +22,7 @@ import org.springframework.security.oauth2.common.exceptions.OAuth2Exception;
  */
 public class GraphApiException extends OAuth2Exception
 {
+  final static Logger LOG = LoggerFactory.getLogger(GraphApiException.class);
   final static ObjectMapper OBJECT_MAPPER;
 
   private final FacebookErrorMessage error;
@@ -77,7 +80,9 @@ public class GraphApiException extends OAuth2Exception
       // 1000..1099: event api errors
       // 1100..1199: live-message errors
 
-      default:    return new UnmappedErrorException(error);
+      default:
+        LOG.info("unmapped error: {}", error);
+        return new UnmappedErrorException(error);
     }
   }
 
@@ -129,7 +134,9 @@ public class GraphApiException extends OAuth2Exception
     }
     catch(JsonProcessingException e)
     {
-      return "Could not convert error in JSON-representation: " + e.getMessage();
+      // This should never happen. But in case of a mistake: be verbose!
+      LOG.error("could not convert message into JSON: {}", e);
+      return e.getMessage();
     }
   }