也许这将是一个比我最初想到的更大的任务,但不管我试图从一个文件加载一个MavenProject,然后解决它的依赖.我有两个代码,但我缺少一些我需要的对象引用;具体来说我需要获取RepositorySystemSession和RepositorySystem的实例.任何提示？
注意：我用maven-plugin标记了这个问题,但这不是一个Maven插件.我很高兴地要求Maven 3(认为我已经有了..)
以下是我到目前为止的代码：
构建MavenProject：
public static MavenProject loadProject(File pomFile) throws Exception
{
MavenProject ret = null;
MavenXpp3Reader mavenReader = new MavenXpp3Reader();
if (pomFile != null && pomFile.exists())
{
FileReader reader = null;
try
{
reader = new FileReader(pomFile);
Model model = mavenReader.read(reader);
model.setPomFile(pomFile);
ret = new MavenProject(model);
}
finally
{
// Close reader
}
}
return ret;
}
解决依赖关系：
public static List<Dependency> getArtifactsDependencies(MavenProject project,String dependencyType,String scope) throws Exception
{
DefaultArtifact pomArtifact = new DefaultArtifact(project.getId());
RepositorySystemSession repoSession = null; // Todo
RepositorySystem repoSystem = null; // Todo
List<RemoteRepository> remoteRepos = project.getRemoteProjectRepositories();
List<Dependency> ret = new ArrayList<Dependency>();
Dependency dependency = new Dependency(pomArtifact,scope);
CollectRequest collectRequest = new CollectRequest();
collectRequest.setRoot(dependency);
collectRequest.setRepositories(remoteRepos);
DependencyNode node = repoSystem.collectDependencies(repoSession,collectRequest).getRoot();
DependencyRequest projectDependencyRequest = new DependencyRequest(node,null);
repoSystem.resolveDependencies(repoSession,projectDependencyRequest);
PreorderNodeListGenerator nlg = new PreorderNodeListGenerator();
node.accept(nlg);
ret.addAll(nlg.getDependencies(true));
return ret;
}
我知道这可能是一个不寻常的要求,也许我应该只是废弃我正在做的事情,并把它作为一个插件包装…但我只是想完成我现在开始！提前致谢.
解决方法
尝试
jcabi-aether,这是一个包装从
Apache Aether从Sonatype：
final File repo = this.session.getLocalRepository().getBasedir();
final Collection<Artifact> deps = new Aether(this.getProject(),repo).resolve(
new DefaultArtifact("junit","junit-dep","","jar","4.10"),JavaScopes.RUNTIME
);
如果你是外面的Maven插件：
final File repo = new File(System.getProperty("java.io.tmpdir"),"my-repo");
final MavenProject project = new MavenProject();
project.setRemoteArtifactRepositories(
Arrays.asList(
new RemoteRepository(
"maven-central","default","http://repo1.maven.org/maven2/"
)
)
);
final Collection<Artifact> deps = new Aether(project,JavaScopes.RUNTIME
);