使用 DefaultModelBuilder 构建有效模型。 建造（）

Question

我正在尝试为一个项目获得一个有效的模型，目前在 Maven Core API 3.0.3（或 3.0.4）下有一个名为 build() 的方法，它很简洁但是..

它需要太多像 ModelNormalizer、ProfileInjector 等，才能在构建时不抛出空指针异常。 在我构建有效模型之前需要初始化的东西太多了，我拥有的所有信息都是 pom.xml 的文件路径

有没有人解决过这个问题？

Answer 1

这是示例代码：

    DefaultModelBuilder modelBuilder = new DefaultModelBuilderFactory().newInstance();

    ModelBuildingRequest req = new DefaultModelBuildingRequest();
    req.setProcessPlugins(false);
    req.setPomFile(file);
    req.setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL);
    req.setModelResolver(new MyLocalModelResolver());

    Model model = modelBuilder.build(req).getEffectiveModel();

Answer 2

是的，它对我有用。 我必须使用默认值设置所有数据。 很烦人...

我为此创建了一个 MavenModelBuilder 构建器类

/**
 * Default MavenModelBuilder.
 */
public class MavenModelBuilder  extends DefaultModelBuilder {

  /**
   * Constructor
   */
  public MavenModelBuilder() {
    super();
    ModelProcessor modelProcessor = new DefaultModelProcessor()
        .setModelLocator(new DefaultModelLocator())
        .setModelReader(new DefaultModelReader());

    ModelInterpolator modelInterpolator = new StringSearchModelInterpolator()
        .setPathTranslator(new DefaultPathTranslator())
        .setUrlNormalizer(new DefaultUrlNormalizer());

    setProfileSelector(new DefaultProfileSelector());
    setModelProcessor(modelProcessor);
    setModelValidator(new DefaultModelValidator());
    setSuperPomProvider(new DefaultSuperPomProvider().setModelProcessor(modelProcessor));
    setModelNormalizer(new DefaultModelNormalizer());
    setInheritanceAssembler(new DefaultInheritanceAssembler());
    setModelInterpolator(modelInterpolator);
    setModelUrlNormalizer(new DefaultModelUrlNormalizer().setUrlNormalizer(new DefaultUrlNormalizer()));
    setModelPathTranslator(new DefaultModelPathTranslator().setPathTranslator(new DefaultPathTranslator()));
    setPluginManagementInjector(new DefaultPluginManagementInjector());
    setLifecycleBindingsInjector(new DefaultLifecycleBindingsInjector());
    setDependencyManagementInjector(new DefaultDependencyManagementInjector());
    setReportConfigurationExpander(new DefaultReportConfigurationExpander());
    setReportingConverter(new DefaultReportingConverter());
    setPluginConfigurationExpander(new DefaultPluginConfigurationExpander());
    setDependencyManagementImporter(new DefaultDependencyManagementImporter());
    setProfileInjector(new DefaultProfileInjector());
  }

}

我这样称呼它

  /**
   * Parse the xml file to get the model of the xml file.
   *
   * @param path of the project
   * @throws IllegalArgumentException : exception
   */
  public static Model parseFile(String path) throws IllegalArgumentException {
    DefaultModelBuilder builder = new MavenModelBuilder();

    ModelBuildingRequest req = new DefaultModelBuildingRequest();
    req.setProcessPlugins(false);
    req.setPomFile(new File(path));
    req.setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL);

    Model model = null;
    try {
      model = builder.build(req).getEffectiveModel();
    } catch (ModelBuildingException e) {
      e.printStackTrace();
    }

    return model;
  }

Answer 3

也许这个库可以提供帮助： https : //github.com/jenkinsci/lib-jenkins-maven-embedder

或者至少作为一个样本。

第

奥利维尔