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插件常用命令
./plugin list/remove/install
plugin.xml 代码
<?xml version="1.0"?> <assembly> <id>plugin</id> <formats> <format>zip</format> </formats> <includeBaseDirectory>false</includeBaseDirectory> <files> <file> <source>${project.basedir}/src/main/resources/plugin-descriptor.properties</source> <outputDirectory>elasticsearch</outputDirectory> <filtered>true</filtered> </file> </files> <dependencySets> <dependencySet> <outputDirectory>elasticsearch</outputDirectory> <useProjectArtifact>true</useProjectArtifact> <useTransitiveFiltering>true</useTransitiveFiltering> </dependencySet> </dependencySets> </assembly>
plugin-descriptor.properties 代码
description=my native script that does something great version=1.0 name=my-native-scrip classname=com.*.score.plugin.MyNativeScriptPlugin java.version=1.8 elasticsearch.version=* jvm=true
pom.xml 代码
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.*.es</groupId> <artifactId>score-plugins</artifactId> <version>1.0.0-SNAPSHOT</version> <name>score-plugins</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>org.elasticsearch</groupId> <artifactId>elasticsearch</artifactId> <version>*</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <version>2.6</version> <configuration> <appendAssemblyId>false</appendAssemblyId> <outputDirectory>${project.build.directory}/releases/</outputDirectory> <descriptors> <descriptor>${basedir}/src/main/assemblies/plugin.xml</descriptor> </descriptors> </configuration> <executions> <execution> <phase>package</phase> <goals> <goal>single</goal> </goals> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.5.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> <resources> <resource> <directory>src/main/resources</directory> <filtering>false</filtering> <excludes> <exclude>*.properties</exclude> </excludes> </resource> </resources> </build> </project>
只有一个java 类 MyNativeScriptPlugin
public class MyNativeScriptPlugin extends Plugin { private static final ESLogger logger = Loggers.getLogger(MyNativeScriptPlugin.class); @Override public String name() { return "my-native-scrip";//native-script为插件的名称 } @Override public String description() { return "new score rule"; } public void onModule(ScriptModule module) { module.registerScript("my_script", MyNativeScriptFactory.class); } public static class MyNativeScriptFactory implements NativeScriptFactory { @Override public ExecutableScript newScript(@Nullable Map<String, Object> params) { return new MyNativeScript(); } @Override public boolean needsScores() { return true; } } public static class MyNativeScript extends AbstractDoubleSearchScript { @Override public double runAsDouble() { try { //你的逻辑 } catch (IOException e) { logger.error("",e); } return 0; } } }
执行打包命令
mvn clean install
执行安装命令
/*/bin/plugin install file:///root/score-plugins-1.0.0-SNAPSHOT.zip
需要所有机器都安装 否则报错 需要重启ES
执行查询命令
"script_score" : { "script" : { "lang": "native", "inline":"my_script" } }
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