Merge pull request #23 from dai0304/feature/handle-exception-in-s3-operation

Add exception handling in S3TemplateResourceResolver

Author: dai0304

spar-wings-thymeleaf-s3/src/main/java/jp/xet/sparwings/thymeleaf/s3/S3TemplateResourceResolver.java

@@ -19,9 +19,7 @@
 import java.util.Objects;
 
 import lombok.RequiredArgsConstructor;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import lombok.extern.slf4j.Slf4j;
 
 import org.thymeleaf.TemplateProcessingParameters;
 import org.thymeleaf.resourceresolver.IResourceResolver;
@@ -36,11 +34,10 @@
  * @version $Id$
  * @author fd0
  */
+@Slf4j
 @RequiredArgsConstructor
 public class S3TemplateResourceResolver implements IResourceResolver {
 
-	private static Logger logger = LoggerFactory.getLogger(S3TemplateResourceResolver.class);
-	
 	private final AmazonS3 s3;
 
 	private final String bucketName;
@@ -58,11 +55,13 @@ public InputStream getResourceAsStream(TemplateProcessingParameters templateProc
 			return s3.getObject(bucketName, resourceName).getObjectContent();
 		} catch (AmazonS3Exception e) {
 			if (Objects.equals(e.getErrorCode(), "NoSuchKey")) {
-				logger.trace(e.getMessage());
+				log.trace(e.getMessage());
 			} else {
-				logger.warn(e.getMessage());
+				log.warn(e.getMessage());
 			}
-			return null;
+		} catch (Exception e) { // NOPMD
+			log.warn("Unexpected", e);
 		}
+		return null;
 	}
 }