if (out.isInMemory()) {
            return new ByteArrayInputStream(out.getData());
        }
        return new FileInputStream(out.getFile());
    }

    protected long getContentLength(final DeferredFileOutputStream out) throws IOException {
        if (out.isInMemory()) {
            return out.getData().length;
        }
        return out.getFile().length();
    }

    /**
     * Returns data as XML content of String.
     *
     * @return XML content of String.
     */
    @Override
    public Object getData(final AccessResultData<?> accessResultData) {
        if (dataClass == null) {
            return super.getData(accessResultData);
        }

        final Map<String, Object> dataMap = XmlUtil.getDataMap(accessResultData);
        if (Map.class.equals(dataClass)) {

    static CollectStepData lookupCollectStepData(RequestTrace trace) {
        CollectStepData collectStepTrace = null;
        while (trace != null) {
            if (trace.getData() instanceof CollectStepData) {
                collectStepTrace = (CollectStepData) trace.getData();
                break;
            }
            trace = trace.getParent();
        }
        return collectStepTrace;
    }

    /**

        /**
         * Gets key-value pairs providing information about the Maven runtime.
         *
         * @return The key-value pairs, never {@code null}.
         */
        Map<String, Object> getData();
    }

    /**
     * Initializes the spy.
     *
     * @param context The event spy context, never {@code null}.
     */
    void init(Context context) throws Exception;

    /**

/**
 * DefaultEventSpyContext
 */
public class DefaultEventSpyContext implements EventSpy.Context {

    private final Map<String, Object> data = new HashMap<>();

    public Map<String, Object> getData() {
        return data;
    }

    }

    static InternalMavenSession from(org.eclipse.aether.RepositorySystemSession session) {
        return cast(InternalMavenSession.class, session.getData().get(InternalSession.class), "session");
    }

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

    /**

    /** a flag to trim a space characters. */
    protected boolean trimSpaceEnabled = true;

    protected String charsetName = Constants.UTF_8;

    /**
     * Class type returned by getData() method. The default is null(XML content
     * of String).
     */
    protected Class<?> dataClass = null;

    protected LoadingCache<String, XPathAPI> xpathAPICache;

     */
    public static String interpretTrace(boolean detailed, RequestTrace requestTrace) {
        while (requestTrace != null) {
            Object data = requestTrace.getData();
            if (data instanceof DependencyRequest request) {
                return "dependency resolution for " + request;
            } else if (data instanceof CollectRequest request) {

        request.lifecycleBindingsInjector(lifecycleBindingsInjector::injectLifecycleBindings);
        ModelBuilder.ModelBuilderSession mbSession =
                iSession.getData().get(SessionData.key(ModelBuilder.ModelBuilderSession.class));
        return mbSession.build(request.build());
    }

    static Model transform(Model model, MavenProject project) {

        }

        propertyMap.put(key, value);
    }

    /**
     * Returns data as HTML content of String.
     *
     */
    @Override
    public Object getData(final AccessResultData<?> accessResultData) {
        // check transformer name
        if (!getName().equals(accessResultData.getTransformerName())) {
            throw new CrawlerSystemException(