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https://issues.apache.org/jira/browse/METRON-1569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16494329#comment-16494329
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ASF GitHub Bot commented on METRON-1569:
----------------------------------------
Github user nickwallen commented on a diff in the pull request:
https://github.com/apache/metron/pull/1022#discussion_r191585931
--- Diff:
metron-platform/metron-common/src/main/java/org/apache/metron/common/field/FieldNameConverters.java
---
@@ -0,0 +1,98 @@
+/*
+ * 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.common.field;
+
+import org.apache.commons.lang.ClassUtils;
+import org.apache.commons.lang3.exception.ExceptionUtils;
+import org.apache.metron.common.configuration.writer.WriterConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.lang.invoke.MethodHandles;
+
+/**
+ * Enumerates a set of {@link FieldNameConverter} implementations.
+ *
+ * <p>Provides shared instances of each {@link FieldNameConverter}.
+ *
+ * <p>Allows the field name converter to be specified using a short-hand
+ * name, rather than the entire fully-qualified class name.
+ */
+public enum FieldNameConverters {
--- End diff --
Ok. Check 'er out.
> Allow user to change field name conversion when indexing to Elasticsearch
> -------------------------------------------------------------------------
>
> Key: METRON-1569
> URL: https://issues.apache.org/jira/browse/METRON-1569
> Project: Metron
> Issue Type: Improvement
> Reporter: Nick Allen
> Assignee: Nick Allen
> Priority: Major
>
> The `ElasticsearchWriter` has a mechanism to transform the field names of a
> message before it is written to Elasticsearch. Right now this mechanism is
> hard-coded to replace all '.' dots with ':' colons.
> This mechanism was needed for Elasticsearch 2.x which did not allow dots in
> field names. Now that Metron supports Elasticsearch 5.x this is no longer a
> problem.
> A user should be able to configure the field name transformation when writing
> to Elasticsearch, as needed.
> While it might have been simpler to just remove the de-dotting mechanism,
> this would break backwards compatibility. Providing users with a means to
> configure this mechanism provides them with an upgrade path.
>
>
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