*
     * @return ActionResponse containing the SSO metadata or error page
     */
    @Execute
    public ActionResponse metadata() {
        final SsoManager ssoManager = ComponentUtil.getSsoManager();
        try {
            final ActionResponse actionResponse = ssoManager.getResponse(SsoResponseType.METADATA);
            if (actionResponse == null) {

        private ActionResponse actionResponse;
        private String logoutUrl;

        public void setLoginCredential(LoginCredential loginCredential) {
            this.loginCredential = loginCredential;
        }

        public void setActionResponse(ActionResponse actionResponse) {
            this.actionResponse = actionResponse;
        }

        // Execute
        ActionResponse result = authenticator.getResponse(SsoResponseType.LOGOUT);

        // Verify
        assertNotNull(result);
        assertEquals(expectedResponse, result);
    }

    @Test
    public void test_getResponse_withNullType() {
        // Execute
        ActionResponse result = authenticator.getResponse(null);

        // Verify

import org.lastaflute.web.response.ActionResponse;

/**
 * The credential for action response.
 */
public class ActionResponseCredential implements LoginCredential {

    private final Supplier<ActionResponse> action;

    /**
     * Constructor.
     * @param action The action.
     */
    public ActionResponseCredential(final Supplier<ActionResponse> action) {
        this.action = action;
    }

    /**
     * Downloads a log file by its encoded ID.
     *
     * @param id the Base64 encoded filename of the log file to download
     * @return ActionResponse containing the log file stream
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public ActionResponse download(final String id) {
        final String filename = sanitizeFilename(new String(Base64.getDecoder().decode(id), StandardCharsets.UTF_8));

     * Serves a thumbnail image for the specified document.
     *
     * @param form the thumbnail request form containing document ID and query parameters
     * @return ActionResponse containing the thumbnail image or 404 if not found
     */
    @Execute
    public ActionResponse index(final ThumbnailForm form) {
        validate(form, messages -> {}, () -> asHtml(virtualHost(path_Error_ErrorJsp)));
        if (isLoginRequired()) {

     * Retrieves and displays cached content for a specific document.
     *
     * @param form the cache form containing document ID and highlight query
     * @return ActionResponse containing the cached document content or error redirect
     */
    @Execute
    public ActionResponse index(final CacheForm form) {
        validate(form, messages -> {}, () -> asHtml(virtualHost(path_Error_ErrorJsp)));
        if (isLoginRequired()) {

     *
     * @param runtime the action runtime context containing request information
     * @return ActionResponse with unauthorized error if access denied, otherwise delegates to parent
     */
    @Override
    public ActionResponse godHandPrologue(final ActionRuntime runtime) {
        if (!isAccessAllowed()) {

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.di.util.LdiFileUtil;
import org.lastaflute.web.login.LoginManager;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;
import org.lastaflute.web.util.LaServletContextUtil;
import org.lastaflute.web.validation.VaErrorHook;

import jakarta.annotation.Resource;

import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.DocumentUtil;
import org.dbflute.util.DfTypeUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.StreamResponse;

import jakarta.annotation.Resource;

/**
 * Action class for handling document redirection requests.