使用 DefaultModelBuilder 構建有效模型。 建造（）

Question

我正在嘗試為一個項目獲得一個有效的模型，目前在 Maven Core API 3.0.3（或 3.0.4）下有一個名為 build() 的方法，它很簡潔但是..

它需要太多像 ModelNormalizer、ProfileInjector 等，才能在構建時不拋出空指針異常。 在我構建有效模型之前需要初始化的東西太多了，我擁有的所有信息都是 pom.xml 的文件路徑

有沒有人解決過這個問題？

Answer 1

這是示例代碼：

    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，它對我有用。 我必須使用默認值設置所有數據。 很煩人...

我為此創建了一個 MavenModelBuilder 構建器類

/**
 * 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());
  }

}

我這樣稱呼它

  /**
   * 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

也許這個庫可以提供幫助： https : //github.com/jenkinsci/lib-jenkins-maven-embedder

或者至少作為一個樣本。

第

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