Examples with HealthCheckHandler com.adeptj.runtime.handler.HealthCheckHandler used on opensource projects

Example 1 with HealthCheckHandler

use of com.adeptj.runtime.handler.HealthCheckHandler in project adeptj-runtime by AdeptJ.

the class Server method createHandlerChain.

/**
 * Chaining of Undertow {@link HttpHandler} instances as follows.
 * <p>
 * 1. GracefulShutdownHandler
 * 2. RequestLimitingHandler
 * 3. AllowedMethodsHandler
 * 4. PathHandler which resolves to either PredicateHandler or HealthCheckHandler
 * 5. RequestBufferingHandler if request buffering is enabled, wrapped in SetHeadersHandler
 * 5. And Finally HttpContinueReadHandler
 *
 * @param httpContinueReadHandler the {@link io.undertow.server.handlers.HttpContinueReadHandler}
 * @param cfg                     the undertow server config object.
 * @return GracefulShutdownHandler as the root handler
 */
private GracefulShutdownHandler createHandlerChain(HttpHandler httpContinueReadHandler, Config cfg) {
    RedirectHandler contextHandler = Handlers.redirect(cfg.getString(KEY_SYSTEM_CONSOLE_PATH));
    RequestBufferingHandler requestBufferingHandler = new RequestBufferingHandler(httpContinueReadHandler, Integer.getInteger(SYS_PROP_REQ_BUFF_MAX_BUFFERS, cfg.getInt(KEY_REQ_BUFF_MAX_BUFFERS)));
    HttpHandler headersHandler = Boolean.getBoolean(SYS_PROP_ENABLE_REQ_BUFF) ? new SetHeaderHandler(requestBufferingHandler, SERVER_STRING, cfg.getString(KEY_HEADER_SERVER)) : new SetHeaderHandler(httpContinueReadHandler, SERVER_STRING, cfg.getString(KEY_HEADER_SERVER));
    ContextPathPredicate contextPathPredicate = new ContextPathPredicate(cfg.getString(KEY_CONTEXT_PATH));
    PredicateHandler predicateHandler = Handlers.predicate(contextPathPredicate, contextHandler, headersHandler);
    PathHandler pathHandler = Handlers.path(predicateHandler).addPrefixPath(cfg.getString(KEY_HEALTH_CHECK_HANDLER_PATH), new HealthCheckHandler());
    AllowedMethodsHandler allowedMethodsHandler = new AllowedMethodsHandler(pathHandler, this.allowedMethods(cfg));
    int maxConcurrentRequests = Integer.getInteger(SYS_PROP_MAX_CONCUR_REQ, cfg.getInt(KEY_MAX_CONCURRENT_REQUESTS));
    int queueSize = Integer.getInteger(SYS_PROP_REQ_LIMIT_QUEUE_SIZE, cfg.getInt(KEY_REQ_LIMIT_QUEUE_SIZE));
    RequestLimit limit = new RequestLimit(maxConcurrentRequests, queueSize);
    RequestLimitingHandler requestLimitingHandler = Handlers.requestLimitingHandler(limit, allowedMethodsHandler);
    return Handlers.gracefulShutdown(requestLimitingHandler);
}