private ReactorManager doExecute()

in maven-core/src/main/java/org/apache/maven/DefaultMaven.java [248:337]
68 lines of code
10 McCabe index (conditional complexity)

    private ReactorManager doExecute( MavenExecutionRequest request, EventDispatcher dispatcher )
        throws MavenExecutionException, BuildFailureException, LifecycleExecutionException
    {
        try
        {
            resolveParameters( request.getSettings(), request.getExecutionProperties() );
        }
        catch ( ComponentLookupException e )
        {
            throw new MavenExecutionException( "Unable to configure Maven for execution", e );
        }
        catch ( ComponentLifecycleException e )
        {
            throw new MavenExecutionException( "Unable to configure Maven for execution", e );
        }
        catch ( SettingsConfigurationException e )
        {
            throw new MavenExecutionException( "Unable to configure Maven for execution", e );
        }

        ProfileManager globalProfileManager = request.getGlobalProfileManager();

        globalProfileManager.loadSettingsProfiles( request.getSettings() );

        getLogger().info( "Scanning for projects..." );
        
        request.getProjectBuilderConfiguration()
               .setMetadataSource( new MavenMetadataSource( mavenMetadataSource, request.getProjectBuilderConfiguration() ) );

        boolean foundProjects = true;
        List projects = getProjects( request );
        if ( projects.isEmpty() )
        {
            projects.add( getSuperProject( request ) );
            foundProjects = false;
        }

        ReactorManager rm;
        try
        {
            String resumeFrom = request.getResumeFrom();

            List projectList = request.getSelectedProjects();

            String makeBehavior = request.getMakeBehavior();

            rm = new ReactorManager( projects, projectList, resumeFrom, makeBehavior );

            rm.setFailureBehavior( request.getFailureBehavior() );

        }
        catch ( CycleDetectedException e )
        {
            throw new BuildFailureException(
                "The projects in the reactor contain a cyclic reference: " + e.getMessage(), e );
        }
        catch ( DuplicateProjectException e )
        {
            throw new BuildFailureException( e.getMessage(), e );
        }
        catch ( MissingProjectException e )
        {
            throw new BuildFailureException( e.getMessage(), e );
        }

        // --------------------------------------------------------------------------------
        // MNG-3641: print a warning if one of the profiles to be activated explicitly
        // was not activated

        validateActivatedProfiles( globalProfileManager, projects );

        if ( rm.hasMultipleProjects() )
        {
            getLogger().info( "Reactor build order: " );

            for ( Iterator i = rm.getSortedProjects().iterator(); i.hasNext(); )
            {
                MavenProject project = (MavenProject) i.next();
                getLogger().info( "  " + project.getName() );
            }
        }

        MavenSession session = createSession( request, rm );

        session.setUsingPOMsFromFilesystem( foundProjects );

        lifecycleExecutor.execute( session, rm, dispatcher );

        return rm;
    }