Github user cestella commented on a diff in the pull request:
https://github.com/apache/metron/pull/879#discussion_r160239950
--- Diff:
metron-platform/metron-data-management/src/main/java/org/apache/metron/dataloads/nonbulk/flatfile/writer/Writer.java
---
@@ -0,0 +1,34 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.metron.dataloads.nonbulk.flatfile.writer;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.metron.common.utils.SerDeUtils;
+
+import java.io.IOException;
+import java.util.Optional;
+
+public interface Writer {
+ void validate(Optional<String> output, Configuration hadoopConfig);
--- End diff --
good catch.
---
