Trino UDF 开发

发表于 2022-04-11 分类于 bigdata

Trino UDF 开发

UDF 开发

UDF 打包

使用 maven 管理依赖，使用 maven-shade-plugin 打 fat 包。在 pom.xml 增加如下 build 标签

<build>
    <sourceDirectory>src/main/java</sourceDirectory>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.2.4</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <artifactSet>
                            <excludes>
                                <exclude>io.trino:trino-spi</exclude>
                                <exclude>io.trino:trino-array</exclude>
                                <exclude>joda-time:joda-time</exclude>
                                <exclude>io.airlift:log</exclude>
                            </excludes>
                        </artifactSet>
                        <shadedArtifactAttached>true</shadedArtifactAttached>
                        <filters>
                            <filter>
                                <artifact>*:*</artifact>
                                <excludes>
                                    <exclude>META-INF/DEPENDENCIES</exclude>
                                    <exclude>META-INF/LICENSE*</exclude>
                                    <exclude>META-INF/NOTICE*</exclude>
                                    <exclude>META-INF/MANIFEST*</exclude>
                                </excludes>
                            </filter>
                        </filters>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <!-- Tweak the compiler to use more memory and use UTF-8 for the source code. -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.10.1</version>
            <configuration>
                <source>${maven.compiler.source}</source>
                <target>${maven.compiler.source}</target>
                <encoding>${project.build.sourceEncoding}</encoding>
                <showWarnings>true</showWarnings>
            </configuration>
        </plugin>

        <!-- Resource plugins should always use UTF-8 -->
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-resources-plugin</artifactId>
            <version>3.2.0</version>
            <configuration>
                <encoding>${project.build.sourceEncoding}</encoding>
            </configuration>
        </plugin>
    </plugins>
</build>

由于 Trino 依赖 Java 11，所以 UDF 同样需要 Java 11 开发和编译。

# 使用 sdkman 环境工具切换到 java 11 环境 （开发环境基础工具，自行搜索安装及用法）
sdk use java 11.0.14.fx-zulu
mvn clean package

UDF 部署

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