maven模块拆分

maven目录层级

1.所有的aop都拆分到一个新的maven模块中来

1.1 maven模块

1.2 切面定义

package org.apache.dolphinscheduler.aop;

import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.util.Collections;

import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Aspect
public class YarnClientAspect {

    /**
     * The current application report when application submitted successfully
     */
    private ApplicationReport currentApplicationReport = null;

    private final String appInfoFilePath;

    protected final Logger logger = LoggerFactory.getLogger(getClass());

    public YarnClientAspect() {
        appInfoFilePath = String.format("%s/%s", System.getProperty("user.dir"), "appInfo.log");
    }

    /**
     * Trigger submitApplication when invoking YarnClientImpl.submitApplication
     *
     * @param appContext     application context when invoking YarnClientImpl.submitApplication
     * @param submittedAppId the submitted application id returned by YarnClientImpl.submitApplication
     * @throws Throwable exceptions
     */
    @AfterReturning(pointcut = "execution(ApplicationId org.apache.hadoop.yarn.client.api.impl.YarnClientImpl." +
            "submitApplication(ApplicationSubmissionContext)) && args(appContext)", returning = "submittedAppId", argNames = "appContext,submittedAppId")
    public void registerApplicationInfo(ApplicationSubmissionContext appContext, ApplicationId submittedAppId) {
        if (appInfoFilePath != null) {
            try {
                Files.write(Paths.get(appInfoFilePath),
                        Collections.singletonList(submittedAppId.toString()),
                        StandardOpenOption.CREATE,
                        StandardOpenOption.WRITE,
                        StandardOpenOption.APPEND);
            } catch (IOException ioException) {
                logger.error(
                        "YarnClientAspect[registerAppInfo]: can't output current application information, because {}",
                        ioException.getMessage());
            }
        }
        logger.info("YarnClientAspect[submitApplication]: current application context {}", appContext);
        logger.info("YarnClientAspect[submitApplication]: submitted application id {}", submittedAppId);
        logger.info(
                "YarnClientAspect[submitApplication]: current application report {}", currentApplicationReport);
    }

    /**
     * Trigger getAppReport only when invoking getApplicationReport within submitApplication
     * This method will invoke many times, however, the last ApplicationReport instance assigned to currentApplicationReport
     *
     * @param appReport current application report when invoking getApplicationReport within submitApplication
     * @param appId     current application id, which is the parameter of getApplicationReport
     */
    @AfterReturning(pointcut = "cflow(execution(ApplicationId org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.submitApplication(ApplicationSubmissionContext))) "
            +
            "&& !within(YarnClientAspect) && execution(ApplicationReport org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.getApplicationReport(ApplicationId)) && args(appId)", returning = "appReport", argNames = "appReport,appId")
    public void registerApplicationReport(ApplicationReport appReport, ApplicationId appId) {
        currentApplicationReport = appReport;
    }
}

1.3 pom配置

<?xml version="1.0" encoding="UTF-8"?>
<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>
    <parent>
        <groupId>org.apache.dolphinscheduler</groupId>
        <artifactId>dolphinscheduler</artifactId>
        <version>dev-SNAPSHOT</version>
    </parent>
    <artifactId>dolphinscheduler-aop</artifactId>
    <packaging>jar</packaging>
    <name>${project.artifactId}</name>
    <description>aop 4 YarnClient to get application id when submitting jars using 'yarn jar mainClass args'</description>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.apache.dolphinscheduler</groupId>
                <artifactId>dolphinscheduler-bom</artifactId>
                <version>${project.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-yarn-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>aspectj-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>