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[ZEPPELIN-4790]. Throw exception when using flink for scala 2.12 #3763

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[ZEPPELIN-4790]. Throw exception when using flink for scala 2.12 #3763

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[ZEPPELIN-4790]. Throw exception when using flink for scala 2.12
zjffdu May 6, 2020
eac7b9a
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zjffdu May 6, 2020
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22 changes: 17 additions & 5 deletions flink/src/main/java/org/apache/zeppelin/flink/FlinkInterpreter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -17,13 +17,10 @@

package org.apache.zeppelin.flink;

import org.apache.commons.lang3.StringUtils;
import org.apache.flink.api.scala.ExecutionEnvironment;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.runtime.jobgraph.SavepointConfigOptions;
import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment;
import org.apache.flink.table.api.TableEnvironment;
import org.apache.flink.table.api.config.ExecutionConfigOptions;
import org.apache.flink.table.api.scala.StreamTableEnvironment;
import org.apache.zeppelin.interpreter.Interpreter;
import org.apache.zeppelin.interpreter.InterpreterContext;
Expand All @@ -48,18 +45,33 @@ public class FlinkInterpreter extends Interpreter {

public FlinkInterpreter(Properties properties) {
super(properties);
this.innerIntp = new FlinkScalaInterpreter(getProperties());
}

private void checkScalaVersion() throws InterpreterException {
String scalaVersionString = scala.util.Properties.versionString();
LOGGER.info("Using Scala: " + scalaVersionString);
if (scalaVersionString.contains("version 2.11")) {
return;
} else {
throw new InterpreterException("Unsupported scala version: " + scalaVersionString +
", Only scala 2.11 is supported");
}
}

@Override
public void open() throws InterpreterException {
checkScalaVersion();

this.innerIntp = new FlinkScalaInterpreter(getProperties());
this.innerIntp.open();
this.z = this.innerIntp.getZeppelinContext();
}

@Override
public void close() throws InterpreterException {
this.innerIntp.close();
if (this.innerIntp != null) {
this.innerIntp.close();
}
}

@Override
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