Project Management

public class MavenProject implements Cloneable {
    /**
     * Get the project's main artifact.
     */
    public Artifact getArtifact();
    
    /**
     * Set the project's main artifact.
     */
    public void setArtifact(Artifact artifact);
    
    /**
     * Get the project object model (POM).
     */
    public Model getModel();
    
    /**
     * Set the project object model.
     */
    public void setModel(Model model);
    
    // Project Identity
    public String getGroupId();
    public String getArtifactId(); 
    public String getVersion();
    public String getName();
    public String getDescription();
    public String getUrl();
    
    // Project Structure
    public File getFile();
    public File getBasedir();
    public String getPackaging();
    
    // Parent/Child Relationships
    public MavenProject getParent();
    public void setParent(MavenProject parent);
    public List<MavenProject> getCollectedProjects();
    public void setCollectedProjects(List<MavenProject> collectedProjects);
    
    // Dependencies
    public List<Dependency> getDependencies();
    public List<Dependency> getCompileDependencies();
    public List<Dependency> getTestDependencies();
    public List<Dependency> getRuntimeDependencies();
    
    // Dependency Management
    public DependencyManagement getDependencyManagement();
    public void setDependencyManagement(DependencyManagement dependencyManagement);
    
    // Build Paths
    public List<String> getCompileSourceRoots();
    public List<String> getTestCompileSourceRoots();
    public List<String> getCompileClasspathElements() throws DependencyResolutionRequiredException;
    public List<String> getTestClasspathElements() throws DependencyResolutionRequiredException;
    public List<String> getRuntimeClasspathElements() throws DependencyResolutionRequiredException;
    public List<String> getSystemClasspathElements() throws DependencyResolutionRequiredException;
    
    // Build Configuration
    public Build getBuild();
    public void setBuild(Build build);
    
    // Properties
    public Properties getProperties();
    public void setProperties(Properties properties);
    
    // Profiles
    public List<Profile> getActiveProfiles();
    public void setActiveProfiles(List<Profile> activeProfiles);
    public List<String> getInjectedProfileIds();
    
    // Artifacts
    public Set<Artifact> getArtifacts();
    public void setArtifacts(Set<Artifact> artifacts);
    public Set<Artifact> getDependencyArtifacts();
    public void setDependencyArtifacts(Set<Artifact> dependencyArtifacts);
    
    // Attached Artifacts
    public List<Artifact> getAttachedArtifacts();
    public void addAttachedArtifact(Artifact artifact);
    
    // Plugin Configuration
    public List<Plugin> getBuildPlugins();
    public Map<String, Plugin> getPluginMap();
    public Plugin getPlugin(String pluginKey);
    
    // Reporting
    public List<ReportPlugin> getReportPlugins();
    public Map<String, ReportPlugin> getReportPluginMap();
    
    // Repositories
    public List<Repository> getRepositories();
    public List<Repository> getPluginRepositories();
    
    // Project Context
    public Object getContextValue(String key);
    public void setContextValue(String key, Object value);
    
    // Lifecycle
    public void addLifecyclePhase(String lifecycle);
    public Set<String> getLifecyclePhases();
}

import org.apache.maven.project.MavenProject;
import org.apache.maven.model.Dependency;

public void analyzeProject(MavenProject project) throws Exception {
    // Basic project information
    System.out.println("Project: " + project.getGroupId() + ":" + 
                      project.getArtifactId() + ":" + project.getVersion());
    System.out.println("Name: " + project.getName());
    System.out.println("Packaging: " + project.getPackaging());
    System.out.println("Base Directory: " + project.getBasedir());
    
    // Dependencies
    System.out.println("Dependencies:");
    for (Dependency dep : project.getDependencies()) {
        System.out.println("  " + dep.getGroupId() + ":" + 
                          dep.getArtifactId() + ":" + dep.getVersion() + 
                          " (scope: " + dep.getScope() + ")");
    }
    
    // Source paths
    System.out.println("Compile Source Roots:");
    for (String sourceRoot : project.getCompileSourceRoots()) {
        System.out.println("  " + sourceRoot);
    }
    
    // Classpath elements
    System.out.println("Compile Classpath:");
    for (String classpathElement : project.getCompileClasspathElements()) {
        System.out.println("  " + classpathElement);
    }
    
    // Build plugins
    System.out.println("Build Plugins:");
    for (Plugin plugin : project.getBuildPlugins()) {
        System.out.println("  " + plugin.getGroupId() + ":" + 
                          plugin.getArtifactId() + ":" + plugin.getVersion());
    }
}

public interface ProjectBuilder {
    /**
     * Build a single project from a POM file.
     *
     * @param projectFile the POM file to build from
     * @param request build configuration and context
     * @return project building result with built project
     * @throws ProjectBuildingException if building fails
     */
    ProjectBuildingResult build(File projectFile, ProjectBuildingRequest request) 
        throws ProjectBuildingException;
        
    /**
     * Build a project from an artifact coordinate.
     *
     * @param projectArtifact the artifact to build project for
     * @param request build configuration and context
     * @return project building result with built project
     * @throws ProjectBuildingException if building fails
     */
    ProjectBuildingResult build(Artifact projectArtifact, ProjectBuildingRequest request) 
        throws ProjectBuildingException;
        
    /**
     * Build projects from a list of POM files.
     *
     * @param projectFiles list of POM files to build
     * @param recursive whether to include child modules
     * @param request build configuration and context
     * @return list of project building results
     * @throws ProjectBuildingException if any build fails
     */
    List<ProjectBuildingResult> build(List<File> projectFiles, boolean recursive,
        ProjectBuildingRequest request) throws ProjectBuildingException;
}

public interface ProjectBuildingRequest {
    // Repository Configuration
    ProjectBuildingRequest setLocalRepository(ArtifactRepository localRepository);
    ArtifactRepository getLocalRepository();
    
    ProjectBuildingRequest setRemoteRepositories(List<ArtifactRepository> remoteRepositories);
    List<ArtifactRepository> getRemoteRepositories();
    
    ProjectBuildingRequest setPluginArtifactRepositories(List<ArtifactRepository> pluginArtifactRepositories);
    List<ArtifactRepository> getPluginArtifactRepositories();
    
    // Repository Session
    ProjectBuildingRequest setRepositorySession(RepositorySystemSession repositorySession);
    RepositorySystemSession getRepositorySession();
    
    // Processing Configuration
    ProjectBuildingRequest setProcessPlugins(boolean processPlugins);
    boolean isProcessPlugins();
    
    ProjectBuildingRequest setResolveDependencies(boolean resolveDependencies);
    boolean isResolveDependencies();
    
    // Validation Configuration
    ProjectBuildingRequest setValidationLevel(int validationLevel);
    int getValidationLevel();
    
    static final int VALIDATION_LEVEL_MINIMAL = 0;
    static final int VALIDATION_LEVEL_MAVEN_2_0 = 20;
    static final int VALIDATION_LEVEL_MAVEN_3_0 = 30;
    static final int VALIDATION_LEVEL_MAVEN_3_1 = 31;
    static final int VALIDATION_LEVEL_STRICT = 100;
    
    // Profile Configuration
    ProjectBuildingRequest setActiveProfileIds(List<String> activeProfileIds);
    List<String> getActiveProfileIds();
    
    ProjectBuildingRequest setInactiveProfileIds(List<String> inactiveProfileIds);
    List<String> getInactiveProfileIds();
    
    ProjectBuildingRequest setProfiles(List<Profile> profiles);
    List<Profile> getProfiles();
    
    // Properties
    ProjectBuildingRequest setSystemProperties(Properties systemProperties);
    Properties getSystemProperties();
    
    ProjectBuildingRequest setUserProperties(Properties userProperties);
    Properties getUserProperties();
    
    // Build Start Time
    ProjectBuildingRequest setBuildStartTime(Date buildStartTime);
    Date getBuildStartTime();
}

public interface ProjectBuildingResult {
    /**
     * Get the project ID that was built.
     */
    String getProjectId();
    
    /**
     * Get the POM file used for building.
     */
    File getPomFile();
    
    /**
     * Get the built Maven project.
     */
    MavenProject getProject();
    
    /**
     * Get any problems that occurred during building.
     */
    List<ModelProblem> getProblems();
    
    /**
     * Get dependency resolution result if dependencies were resolved.
     */
    DependencyResolutionResult getDependencyResolutionResult();
}

import org.apache.maven.project.ProjectBuilder;
import org.apache.maven.project.ProjectBuildingRequest;
import org.apache.maven.project.ProjectBuildingResult;
import org.apache.maven.project.DefaultProjectBuildingRequest;

@Component
private ProjectBuilder projectBuilder;

@Component
private RepositorySystem repositorySystem;

public MavenProject buildProject(File pomFile) throws Exception {
    // Create building request
    ProjectBuildingRequest request = new DefaultProjectBuildingRequest();
    
    // Configure repository session
    DefaultRepositorySystemSession repoSession = new DefaultRepositorySystemSession();
    repoSession.setLocalRepositoryManager(
        repositorySystem.newLocalRepositoryManager(repoSession, localRepo));
    request.setRepositorySession(repoSession);
    
    // Configure repositories
    request.setLocalRepository(localRepo);
    request.setRemoteRepositories(remoteRepos);
    request.setPluginArtifactRepositories(pluginRepos);
    
    // Configure processing options
    request.setProcessPlugins(true);
    request.setResolveDependencies(true);
    request.setValidationLevel(ProjectBuildingRequest.VALIDATION_LEVEL_MAVEN_3_1);
    
    // Set properties
    Properties userProps = new Properties();
    userProps.setProperty("maven.compiler.source", "17");
    userProps.setProperty("maven.compiler.target", "17");
    request.setUserProperties(userProps);
    
    // Build project
    ProjectBuildingResult result = projectBuilder.build(pomFile, request);
    
    // Check for problems
    if (!result.getProblems().isEmpty()) {
        System.out.println("Build problems:");
        for (ModelProblem problem : result.getProblems()) {
            System.out.println("  " + problem.getSeverity() + ": " + problem.getMessage());
        }
    }
    
    return result.getProject();
}

// Build multiple projects
public List<MavenProject> buildMultiModuleProject(File rootPom) throws Exception {
    ProjectBuildingRequest request = new DefaultProjectBuildingRequest();
    // ... configure request
    
    List<ProjectBuildingResult> results = projectBuilder.build(
        Arrays.asList(rootPom), true, request);
    
    List<MavenProject> projects = new ArrayList<>();
    for (ProjectBuildingResult result : results) {
        projects.add(result.getProject());
    }
    
    return projects;
}

public interface MavenProjectHelper {
    /**
     * Attach an artifact to the project.
     *
     * @param project the Maven project
     * @param artifactFile the artifact file to attach
     * @param artifactType the type of artifact (jar, war, etc.)
     */
    void attachArtifact(MavenProject project, File artifactFile, String artifactType);
    
    /**
     * Attach an artifact with classifier.
     *
     * @param project the Maven project
     * @param artifactFile the artifact file to attach
     * @param artifactType the type of artifact
     * @param artifactClassifier the classifier (sources, javadoc, etc.)
     */
    void attachArtifact(MavenProject project, File artifactFile, String artifactType, String artifactClassifier);
    
    /**
     * Attach an existing artifact.
     *
     * @param project the Maven project
     * @param artifact the artifact to attach
     * @param artifactFile the file for the artifact
     */
    void attachArtifact(MavenProject project, Artifact artifact, File artifactFile);
    
    /**
     * Add a resource directory to the project.
     *
     * @param project the Maven project
     * @param resourceDirectory the resource directory to add
     * @param includes list of include patterns (can be null)
     * @param excludes list of exclude patterns (can be null)
     */
    void addResource(MavenProject project, String resourceDirectory, List<String> includes, List<String> excludes);
    
    /**
     * Add a test resource directory to the project.
     */
    void addTestResource(MavenProject project, String resourceDirectory, List<String> includes, List<String> excludes);
}

import org.apache.maven.project.MavenProjectHelper;

@Component
private MavenProjectHelper projectHelper;

public void processArtifacts(MavenProject project) {
    // Attach source JAR
    File sourceJar = new File(project.getBuild().getDirectory(), 
                             project.getArtifactId() + "-" + project.getVersion() + "-sources.jar");
    if (sourceJar.exists()) {
        projectHelper.attachArtifact(project, sourceJar, "jar", "sources");
    }
    
    // Attach Javadoc JAR
    File javadocJar = new File(project.getBuild().getDirectory(),
                              project.getArtifactId() + "-" + project.getVersion() + "-javadoc.jar");
    if (javadocJar.exists()) {
        projectHelper.attachArtifact(project, javadocJar, "jar", "javadoc");
    }
    
    // Add additional resource directory
    projectHelper.addResource(project, 
        "src/main/config",
        Arrays.asList("**/*.properties", "**/*.xml"),
        Arrays.asList("**/test-*"));
}

public interface ProjectDependenciesResolver {
    /**
     * Resolve dependencies for a project.
     *
     * @param project the Maven project
     * @param scopesToResolve dependency scopes to include
     * @param session the Maven session
     * @return dependency resolution result
     * @throws DependencyResolutionException if resolution fails
     */
    DependencyResolutionResult resolve(MavenProject project, Collection<String> scopesToResolve,
        MavenSession session) throws DependencyResolutionException;
        
    /**
     * Resolve dependencies for a project with exclusion filters.
     */
    DependencyResolutionResult resolve(MavenProject project, Collection<String> scopesToResolve,
        Collection<String> scopesToCollect, MavenSession session) throws DependencyResolutionException;
}

import org.apache.maven.ProjectDependenciesResolver;
import org.apache.maven.project.DependencyResolutionResult;

@Component
private ProjectDependenciesResolver dependencyResolver;

public void resolveDependencies(MavenProject project, MavenSession session) throws Exception {
    // Resolve compile and runtime dependencies
    Collection<String> scopesToResolve = Arrays.asList(
        Artifact.SCOPE_COMPILE, 
        Artifact.SCOPE_RUNTIME,
        Artifact.SCOPE_PROVIDED
    );
    
    DependencyResolutionResult result = dependencyResolver.resolve(
        project, scopesToResolve, session);
    
    // Process resolved dependencies
    System.out.println("Resolved dependencies:");
    for (Dependency dependency : result.getDependencies()) {
        Artifact artifact = dependency.getArtifact();
        System.out.println("  " + artifact.getGroupId() + ":" + 
                          artifact.getArtifactId() + ":" + artifact.getVersion() +
                          " (scope: " + artifact.getScope() + 
                          ", file: " + artifact.getFile() + ")");
    }
    
    // Handle unresolved dependencies
    if (!result.getUnresolvedDependencies().isEmpty()) {
        System.err.println("Unresolved dependencies:");
        for (Dependency unresolved : result.getUnresolvedDependencies()) {
            System.err.println("  " + unresolved.getGroupId() + ":" + 
                              unresolved.getArtifactId() + ":" + unresolved.getVersion());
        }
    }
    
    // Handle collection errors
    if (!result.getCollectionErrors().isEmpty()) {
        System.err.println("Collection errors:");
        for (Exception error : result.getCollectionErrors()) {
            System.err.println("  " + error.getMessage());
        }
    }
}

public interface DependencyResolutionResult {
    List<Dependency> getDependencies();
    List<Dependency> getUnresolvedDependencies();
    List<Exception> getCollectionErrors();
    DependencyNode getDependencyGraph();
}

public class DependencyResolutionRequiredException extends Exception {
    public DependencyResolutionRequiredException(MavenProject project);
    public MavenProject getProject();
}

public class ModelProblem {
    public enum Severity {
        FATAL, ERROR, WARNING
    }
    
    public String getMessage();
    public Severity getSeverity();
    public int getLineNumber();
    public int getColumnNumber();
    public String getSource();
}

public interface DependencyNode {
    List<DependencyNode> getChildren();
    Dependency getDependency();
    DependencyNode getParent();
    String getPremanagedScope();
    String getPremanagedVersion();
    Collection<Object> getContexts();
}

public interface Profile {
    String getId();
    Activation getActivation();
    BuildBase getBuild();
    List<Repository> getRepositories();
    List<Repository> getPluginRepositories();
    List<Dependency> getDependencies();
    DependencyManagement getDependencyManagement();
    Properties getProperties();
}

public interface Plugin {
    String getGroupId();
    String getArtifactId();
    String getVersion();
    String getExtensions();
    List<PluginExecution> getExecutions();
    List<Dependency> getDependencies();
    Object getConfiguration();
}

public interface Build {
    String getSourceDirectory();
    String getScriptSourceDirectory();
    String getTestSourceDirectory();
    String getOutputDirectory();
    String getTestOutputDirectory();
    List<Extension> getExtensions();
    String getDefaultGoal();
    List<Resource> getResources();
    List<Resource> getTestResources();
    String getDirectory();
    String getFinalName();
    List<String> getFilters();
    PluginManagement getPluginManagement();
    List<Plugin> getPlugins();
}