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https://issues.apache.org/jira/browse/METRON-1341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16282553#comment-16282553
]
ASF GitHub Bot commented on METRON-1341:
----------------------------------------
Github user ottobackwards commented on a diff in the pull request:
https://github.com/apache/metron/pull/861#discussion_r155645013
--- Diff:
metron-platform/metron-common/src/test/java/org/apache/metron/common/field/transformation/SelectTransformationTest.java
---
@@ -0,0 +1,75 @@
+/**
+ * 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.transformation;
+
+import java.util.HashMap;
+
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.metron.common.configuration.FieldTransformer;
+import org.apache.metron.common.configuration.SensorParserConfig;
+import org.apache.metron.stellar.dsl.Context;
+import org.json.simple.JSONObject;
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.google.common.collect.Iterables;
+
--- End diff --
or a FieldTransformer ( level up ) test more likely.
> Projection FieldTransformation
> ------------------------------
>
> Key: METRON-1341
> URL: https://issues.apache.org/jira/browse/METRON-1341
> Project: Metron
> Issue Type: Improvement
> Affects Versions: 0.4.2
> Reporter: Simon Elliston Ball
> Assignee: Simon Elliston Ball
> Labels: newbie
>
> It would be useful to have a projection transformation for Parsers which
> could use configured to limit the fields output from the parser.
> The configuration would look like this:
> {code:java}
> {
> "fieldTransformations": [
> {
> "transformation": "STELLAR",
> "config": [
> "ipSrc = TRIM(raw_ip_src)"
> "ip_src_addr := ipSrc"
> ]
> },
> {
> "transformation": "SELECT",
> "output" : [ "ip_src_addr", "ip_dst_addr", "message"]
> }
> ]
> }
> {code}
> This would lead to only the fields in the output definition of the SELECT
> transformation being put into the outbound message.
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