import java.util.Set;

/**
 * Strategy interface for formatting exported index documents.
 */
public interface IndexExportFormatter {

    /**
     * Returns the file extension for this format (e.g. ".html", ".json").
     *
     * @return the file extension including the leading dot
     */
    String getFileExtension();

    /**
     * Returns the default index file name for this format (e.g. "index.html", "index.json").
     *

        private String version;

        private String extension;

        private String classifier;

        public Artifact(String groupId, String artifactId, String version, String extension, String classifier) {
            this.groupId = groupId;
            this.artifactId = artifactId;
            this.version = version;
            this.extension = extension;
            this.classifier = classifier;
        }

 * <p>
 * It provides information about the file type (or extension) of the associated artifact,
 * its default classifier, and how the artifact will be used in the build when creating
 * class paths or module paths.
 * <p>
 * For example, the type {@code java-source} has a {@code jar} extension and a
 * {@code sources} classifier. The artifact and its dependencies should be added
 * to the build path.

 * information among plugins, is this more like an extension point - do we need a sort of bus for
 * application data - do we need a dictionary for our applications like Apple does. We could easily
 * hook into this and this is the model we need to follow - how many of our REST services do not map
 * directory to a method in the application interface?
 *
 * - research extension points versus plugins
 *

         */
        Core,

        /**
         * A class realm for a project to aggregates its build extensions.
         */
        Project,

        /**
         * A class realm for a build extension.
         */
        Extension,

        /**
         * A class realm for a plugin.
         */
        Plugin,
    }

    /**

To install:

1) chrome://extensions/
2) click "[+] Developer Mode" in top right
3) "Load unpacked extension..."
4) pick $GOROOT/misc/chrome/gophertool

/**
 * Allows configuring test rerun mechanics.
 * <p>
 * This extension is added with the name 'rerun' to all {@link Test} tasks.
 */
public class TestRerunTaskExtension {

    /**
     * The default number of reruns we allow for a test task.
     */
    public static final Integer DEFAULT_MAX_RERUNS = 1;

    /**
     * The name of the extension added to each test task.
     */
    public static String NAME = "rerun";

     */
    @PostConstruct
    public void init() {
        // Configure commonmark with table extension
        final Iterable<Extension> extensions = Arrays.asList(TablesExtension.create());

        markdownParser = Parser.builder().extensions(extensions).build();

        htmlRenderer = HtmlRenderer.builder().extensions(extensions).softbreak("<br/>").build();

        // Configure OWASP HTML Sanitizer with allowed tags

# changes at all.
#
# Separately, this extension also adds a 'golookup' command that
# returns the hash of a specific reference, like 'default' or a tag.
# And golookup of a hash confirms that it still exists on the server.
# We can use that to revalidate that specific versions still exist and
# have the same meaning they did the last time we checked.
#
# Usage:
#
#	hg --config "extensions.goreposum=$GOROOT/lib/hg/goreposum.py" goreposum REPOURL

            metadata.setPlugins(new ArrayList<>(recessive.getPlugins()));
        }

        artifacts.clear();
    }

    private String getKey(String classifier, String extension) {
        return classifier + ':' + extension;
    }

    @Override
    public String getGroupId() {
        return metadata.getGroupId();
    }

    @Override
    public String getArtifactId() {