将参数传递给以编程方式调用的maven mojo

Question

这里有我的Maven Mojo：

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.shared.invoker.*;

import java.util.Collections;

@Mojo(name = "run")
public class RunMojo extends AbstractMojo {

    @Override
    public void execute() throws MojoExecutionException {
        InvocationRequest request = new DefaultInvocationRequest();
        request.setGoals(Collections.singletonList("myplugin:mygoal"));

        // need to set parameters to pass to the goal

        Invoker invoker = new DefaultInvoker();
        try {
            invoker.execute(request);
        } catch (MavenInvocationException e) {
            e.printStackTrace();
        }
    }
}

而且我需要调用第二个Mojo传递一些参数，就像在pom.xml中定义插件时一样，如下。

<build>
    <plugins>
        <plugin>
            <artifactId>myPlugin</artifactId>
            <groupId>myGroupId</groupId>
            <version>myVersion</version>
            <configuration>
                <param1>value1</param1>
                <param2>value2</param2>
                <param3>value3</param3>
            </configuration>
        </plugin>
    </plugins>
</build>

任何解决方案？预先谢谢你。

Answer 1

这可能是一个比较老的问题，但是最近发现自己处于这种情况，并告诉我要教我如何创建一个新的插件，该插件将另一个插件包裹起来。

我最终使用了mojo-executor插件（https://github.com/TimMoore/mojo-executor）。即使没有积极维护它，它也可以很好地完成工作。这是我如何通过自己的maven插件执行html2pdf-maven-plugin（https://bitbucket.org/prunge/html2pdf-maven-plugin/wiki/Home）的示例。

generatePdf（...）方法是从Mojo类的execute（）方法调用的。我在getMvnPlugin（...）方法中指定了插件groupId和ArtifactId以及执行细节。使用getPluginConfiguration（...）方法进行插件配置，并指定html2pdf-maven-plugin的参数。

 private void generatePdf(File inputFilePath, String outputFile) {
    String inputDirectory = inputFilePath.getParent();
    String inputFileName = inputFilePath.getName();

    try {
        Plugin html2pdfPlugin = getMvnPlugin(outputFile, inputFile, inputFileName);

        MojoExecutor.ExecutionEnvironment executionEnvironment = MojoExecutor.executionEnvironment(mavenProject, mavenSession, pluginManager);
        MojoExecutor.executeMojo(html2pdfPlugin, "html2pdf", getPluginConfiguration(outputFile, inputDirectory, inputFileName), executionEnvironment);
    } catch (Exception ex) {
        String errorMessage = String.format("Failed to generate PDF file [%s] from html file [%s].", outputFile, inputFile);
        getLog().error(errorMessage, ex);
    }
}

private Plugin getMvnPlugin(String outputFile, String inputDirectory, String inputFileName) {
    Plugin plugin = new Plugin();

    plugin.setGroupId("au.net.causal.maven.plugins");
    plugin.setArtifactId("html2pdf-maven-plugin");
    plugin.setVersion("2.0");

    PluginExecution pluginExecution = new PluginExecution();
    pluginExecution.setGoals(Collections.singletonList("html2pdf"));
    pluginExecution.setId("generate-pdf");
    pluginExecution.setPhase("generate-resources");
    plugin.setExecutions(Collections.singletonList(pluginExecution));

    plugin.setConfiguration(getPluginConfiguration(outputFile, inputDirectory, inputFileName));

    return plugin;
}

private Xpp3Dom getPluginConfiguration(String outputFile, String inputDirectory, String inputFileName) {
    MojoExecutor.Element outputFileElement = new MojoExecutor.Element("outputFile", outputFile);

    MojoExecutor.Element includeElement = new MojoExecutor.Element("include", "**/" + inputFileName);
    MojoExecutor.Element includesElement = new MojoExecutor.Element("includes", includeElement);
    MojoExecutor.Element directoryElement = new MojoExecutor.Element("directory", inputDirectory);
    MojoExecutor.Element htmlFileSetElement = new MojoExecutor.Element("htmlFileSet", directoryElement, includesElement);
    MojoExecutor.Element htmlFileSetsElement = new MojoExecutor.Element("htmlFileSets", htmlFileSetElement);

    return MojoExecutor.configuration(outputFileElement, htmlFileSetsElement);
}

[mavenProject，mavenSession和pluginManager只需使用org.apache.maven.plugins.annotations.Component注入Mojo类中。

@Component
private MavenProject mavenProject;

@Component
private MavenSession mavenSession;

@Component
private BuildPluginManager pluginManager;