@Override
    public Path getTopDirectory() {
        return getMavenSession().getRequest().getTopDirectory();
    }

    @Nonnull
    @Override
    public List<Project> getProjects() {
        return getProjects(getMavenSession().getProjects());
    }

    @Nonnull
    @Override
    public Map<String, Object> getPluginContext(Project project) {
        requireNonNull(project, "project" + " cannot be null");

    }

    private Stream<ProjectActivationSettings> getProjects(final Predicate<ActivationSettings> predicate) {
        return this.activations.stream().filter(activation -> predicate.test(activation.activationSettings));
    }

    private Set<String> getProjectSelectors(final Predicate<ActivationSettings> predicate) {
        return getProjects(predicate).map(activation -> activation.selector).collect(toSet());
    }

        if (logger.isInfoEnabled() && event.getSession().getProjects().size() > 1) {
            init();
            infoLine('-');

            infoMain("Reactor Build Order:");

            logger.info("");

            final List<MavenProject> projects = event.getSession().getProjects();
            for (MavenProject project : projects) {
                int len = lineLength

            MavenProject project = projects.get(i);
            String key = BuilderCommon.getKey(project);

            this.getProjects().put(key, project);
            this.getIndices().put(key, i);
        }
    }

    public Map<String, MavenProject> getProjects() {
        return projects;
    }

    public Map<String, Integer> getIndices() {
        return indices;
    }

        if (logger.isInfoEnabled() && event.getSession().getProjects().size() > 1) {
            init();
            infoLine('-');

            infoMain("Reactor Build Order:");

            logger.info("");

            final List<MavenProject> projects = event.getSession().getProjects();
            for (MavenProject project : projects) {
                int len = lineLength

    }

    List<Project> getProjects(List<org.apache.maven.project.MavenProject> projects);

    /**
     * May return null if the input project is null or is not part of the reactor.
     */
    @Nullable
    Project getProject(org.apache.maven.project.MavenProject project);

            }
        }
        return projectLocalRepository;
    }

    private MavenProject getProject(Artifact artifact) {
        return getProject(artifact, getProjects());
    }

    private MavenProject getProject(Artifact artifact, Map<String, Map<String, Map<String, MavenProject>>> projects) {
        return projects.getOrDefault(artifact.getGroupId(), Collections.emptyMap())

        return items.isEmpty();
    }

    /**
     * @return a set of all the projects managed by the build
     */
    public Set<MavenProject> getProjects() {
        return items.stream().map(ProjectSegment::getProject).collect(Collectors.toSet());
    }

    public Properties getSystemProperties() {
        return request.getSystemProperties();
    }

    public Settings getSettings() {
        return settings;
    }

    public List<MavenProject> getProjects() {
        return projects;
    }

    /**
     * @deprecated use {@link #getTopDirectory()} ()}
     */
    @Deprecated
    public String getExecutionRootDirectory() {

            Map<Artifact, File> reactorProjects =
                    new HashMap<>(session.getProjects().size());
            for (MavenProject reactorProject : session.getProjects()) {
                reactorProjects.put(
                        reactorProject.getArtifact(),
                        reactorProject.getArtifact().getFile());
            }