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https://issues.apache.org/jira/browse/METRON-295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15630192#comment-15630192
]
ASF GitHub Bot commented on METRON-295:
---------------------------------------
Github user cestella commented on a diff in the pull request:
https://github.com/apache/incubator-metron/pull/338#discussion_r86225002
--- Diff:
metron-platform/metron-parsers/src/main/java/org/apache/metron/parsers/ScriptParser.java
---
@@ -0,0 +1,175 @@
+package org.apache.metron.parsers;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Serializable;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+
+import javax.script.Invocable;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineFactory;
+import javax.script.ScriptEngineManager;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.metron.common.Constants;
+import org.apache.metron.parsers.interfaces.MessageParser;
+import org.json.simple.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.Joiner;
+import com.google.common.base.Splitter;
+
+public class ScriptParser implements
MessageParser<JSONObject>,Serializable{
+
+ protected static final Logger LOG =
LoggerFactory.getLogger(ScriptParser.class);
+ protected String scriptPath;
+ protected ScriptEngine engine;
+ protected String parseFunction;
+ protected String language;
+ protected String commonScript="/scripts/";
+ protected List<String> timeFields = new ArrayList<>();
+ protected String timestampField;
+ protected SimpleDateFormat dateFormat = new
SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S z");
+
+ @Override
+ public void configure(Map<String, Object> config) {
+ // TODO Auto-generated method stub
+ this.scriptPath=(String) config.get("path");
+ this.parseFunction=(String)config.get("function");
+ this.language=(String)config.get("language");
+ this.commonScript=this.commonScript+language+"/common";
+ if(this.parseFunction==null)
+ this.parseFunction="parse";
+ }
+ //Should this be sent to the interface as a default method?
+ public InputStream openInputStream(String streamName) throws
IOException {
+ FileSystem fs = FileSystem.get(new Configuration());
--- End diff --
So this is following the pattern of what's currently in Grok. That is
being moved to take the grok statements from zookeeper because otherwise you
cannot update the parser without bouncing the topology. Should we follow suit
here?
> Script parsing bolt
> --------------------
>
> Key: METRON-295
> URL: https://issues.apache.org/jira/browse/METRON-295
> Project: Metron
> Issue Type: New Feature
> Affects Versions: 0.2.1BETA
> Reporter: James Sirota
> Assignee: Karthik Narayanan
> Priority: Minor
> Labels: newbie, platform
> Fix For: 0.2.2BETA
>
>
> In addition to having a Grok parsing bolt we need a bolt that can execute a
> script in order to parse a telemetry. This way you can still script the
> parsing for telemetries for which Grok expressions are too complex, but still
> don't have to define a java parser
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