Hello,
I've been struggling with the Native (Java) script for some time now. I am writing custom score plugin and building with Maven. My java class looks like this
package org.elasticsearch.plugin.hw.customscore;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.elasticsearch.plugins.Plugin;
import org.elasticsearch.plugins.ScriptPlugin;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.script.*;
public class HW_NativeScriptPlugin extends Plugin implements ScriptPlugin {
@Override
public List<NativeScriptFactory> getNativeScripts() {
return Collections.singletonList(new HW_NativeScriptFactory());
}
public static class HW_NativeScriptFactory implements NativeScriptFactory {
@Override
public ExecutableScript newScript(@Nullable Map<String, Object> params) {
return new HW_NativeScript();
}
@Override
public boolean needsScores() {
return false;
}
@Override
public String getName() {
return "HW_SCRIPT";
}
}
public static class HW_NativeScript extends AbstractDoubleSearchScript {
@Override
public double runAsDouble() {
double a = 1;
double b = 2;
return a * b;
}
}
}
pom.xml ->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven- v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.elasticsearch.plugin.hirewand.customscore</groupId>
<artifactId>NativeScriptPlugin</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>NativeScriptPlugin</name>
<url>http://maven.apache.org</url>
<properties>
<jdk.version>1.8</jdk.version>
</properties>
<dependencies>
<dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>5.2.1</version>
</dependency>
</dependencies>
</project>
plugin-descriptor.properties ->
description=Custom score script for peopleworld
version=0.1
name=NativeScriptPlugin
classname=org.elasticsearch.plugin.hw.customscore.NativeScriptPlugin
java.version=1.8
elasticsearch.version=5.2.1
I m getting the following error while building my project
[ERROR] E:\ESPlugin\NativeScriptPlugin\src\main\java\org\elasticsearch\plugin\hw\customscore\HW_NativeScriptPlugin.java:[16,40] error: incompatible types: List<HW_NativeScriptFactory> cannot be converted to List
[ERROR] -> [Help 1]
Can anybody point out what am i doing wrong here ?