如何從插件中的Maven存儲庫中解析工件？

Question

在先前的問題，我從Maven倉庫下載神器有一個answer。這適用於我，但我需要閱讀下載的工件的MavenProject。

什麼是我讀MavenProject在我的插件下載神器的最佳方式？

Answer 1

可以使用MavenProjectBuilder解決神器並閱讀下載POM成MavenProject。 buildFromRepository（）方法將從遠程存儲庫獲取工件（如果需要），因此在閱讀之前不需要下載它。

這些都是需要以前的答案的變化解決Maven項目：

//other imports same as previous answer 
import org.apache.maven.project.MavenProject; 
import org.apache.maven.project.MavenProjectBuilder; 
import org.apache.maven.project.ProjectBuildingException; 

/** 
* Obtain the artifact defined by the groupId, artifactId, and version from the 
* remote repository. 
* 
* @goal bootstrap 
*/ 
public class BootstrapAppMojo extends AbstractMojo { 

    /** 
    * Used to resolve the maven project. 
    * 
    * @parameter expression= 
    *   "${component.org.apache.maven.project.MavenProjectBuilder}" 
    * @required 
    * @readonly 
    */ 
    private MavenProjectBuilder mavenProjectBuilder; 

    //rest of properties same as before. 

    /** 
    * The target pom's version 
    * 
    * @parameter expression="${bootstrapVersion}" 
    * @required 
    */ 
    private String bootstrapVersion; 

    public void execute() throws MojoExecutionException, MojoFailureException { 
     try { 
      Artifact pomArtifact = this.factory.createArtifact(
       bootstrapGroupId, bootstrapArtifactId, bootstrapVersion, 
       "", bootstrapType); 

      MavenProject project = mavenProjectBuilder.buildFromRepository(
       pomArtifact, this.remoteRepositories, this.localRepository); 

      //do something with the project... 
     } catch (ProjectBuildingException e) { 
      getLog().error("can't build bootstrapped pom", e); 
     } 
    } 
} 

Answer 2

一些例子可以在這裏：http://docs.codehaus.org/display/MAVENUSER/Mojo+Developer+Cookbook。