Examples with Handler org.eclipse.jetty.server.Handler used on opensource projects

Example 6 with Handler

use of org.eclipse.jetty.server.Handler in project jetty.project by eclipse.

the class StatisticsHandler method handle.

@Override
public void handle(String path, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
    _dispatchedStats.increment();
    final long start;
    HttpChannelState state = baseRequest.getHttpChannelState();
    if (state.isInitial()) {
        // new request
        _requestStats.increment();
        start = baseRequest.getTimeStamp();
    } else {
        // resumed request
        start = System.currentTimeMillis();
        _asyncDispatches.increment();
    }
    try {
        Handler handler = getHandler();
        if (handler != null && _shutdown.get() == null && isStarted())
            handler.handle(path, baseRequest, request, response);
        else if (baseRequest.isHandled()) {
            if (_wrapWarning.compareAndSet(false, true))
                LOG.warn("Bad statistics configuration. Latencies will be incorrect in {}", this);
        } else {
            baseRequest.setHandled(true);
            response.sendError(HttpStatus.SERVICE_UNAVAILABLE_503);
        }
    } finally {
        final long now = System.currentTimeMillis();
        final long dispatched = now - start;
        _dispatchedStats.decrement();
        _dispatchedTimeStats.set(dispatched);
        if (state.isSuspended()) {
            if (state.isInitial()) {
                state.addListener(_onCompletion);
                _asyncWaitStats.increment();
            }
        } else if (state.isInitial()) {
            long d = _requestStats.decrement();
            _requestTimeStats.set(dispatched);
            updateResponse(baseRequest);
            // If we have no more dispatches, should we signal shutdown?
            FutureCallback shutdown = _shutdown.get();
            if (shutdown != null) {
                response.flushBuffer();
                if (d == 0)
                    shutdown.succeeded();
            }
        }
    // else onCompletion will handle it.
    }
}

Example 7 with Handler

use of org.eclipse.jetty.server.Handler in project jetty.project by eclipse.

the class HandlerCollection method setHandlers.

/* ------------------------------------------------------------ */
/**
     * @param handlers The handlers to set.
     */
public void setHandlers(Handler[] handlers) {
    if (!_mutableWhenRunning && isStarted())
        throw new IllegalStateException(STARTED);
    if (handlers != null) {
        // check for loops
        for (Handler handler : handlers) if (handler == this || (handler instanceof HandlerContainer && Arrays.asList(((HandlerContainer) handler).getChildHandlers()).contains(this)))
            throw new IllegalStateException("setHandler loop");
        // Set server
        for (Handler handler : handlers) if (handler.getServer() != getServer())
            handler.setServer(getServer());
    }
    Handler[] old = _handlers;
    ;
    _handlers = handlers;
    updateBeans(old, handlers);
}

Example 8 with Handler

use of org.eclipse.jetty.server.Handler in project jetty.project by eclipse.

the class HandlerWrapper method destroy.

/* ------------------------------------------------------------ */
@Override
public void destroy() {
    if (!isStopped())
        throw new IllegalStateException("!STOPPED");
    Handler child = getHandler();
    if (child != null) {
        setHandler(null);
        child.destroy();
    }
    super.destroy();
}

Example 9 with Handler

use of org.eclipse.jetty.server.Handler in project jetty.project by eclipse.

the class HotSwapHandler method destroy.

/* ------------------------------------------------------------ */
@Override
public void destroy() {
    if (!isStopped())
        throw new IllegalStateException("!STOPPED");
    Handler child = getHandler();
    if (child != null) {
        setHandler(null);
        child.destroy();
    }
    super.destroy();
}

Example 10 with Handler

use of org.eclipse.jetty.server.Handler in project jetty.project by eclipse.

the class Runner method configure.

/**
     * Configure a jetty instance and deploy the webapps presented as args
     *
     * @param args the command line arguments
     * @throws Exception if unable to configure
     */
public void configure(String[] args) throws Exception {
    // handle classpath bits first so we can initialize the log mechanism.
    for (int i = 0; i < args.length; i++) {
        if ("--lib".equals(args[i])) {
            try (Resource lib = Resource.newResource(args[++i])) {
                if (!lib.exists() || !lib.isDirectory())
                    usage("No such lib directory " + lib);
                _classpath.addJars(lib);
            }
        } else if ("--jar".equals(args[i])) {
            try (Resource jar = Resource.newResource(args[++i])) {
                if (!jar.exists() || jar.isDirectory())
                    usage("No such jar " + jar);
                _classpath.addPath(jar);
            }
        } else if ("--classes".equals(args[i])) {
            try (Resource classes = Resource.newResource(args[++i])) {
                if (!classes.exists() || !classes.isDirectory())
                    usage("No such classes directory " + classes);
                _classpath.addPath(classes);
            }
        } else if (args[i].startsWith("--"))
            i++;
    }
    initClassLoader();
    LOG.info("Runner");
    LOG.debug("Runner classpath {}", _classpath);
    String contextPath = __defaultContextPath;
    boolean contextPathSet = false;
    int port = __defaultPort;
    String host = null;
    int stopPort = 0;
    String stopKey = null;
    boolean runnerServerInitialized = false;
    for (int i = 0; i < args.length; i++) {
        switch(args[i]) {
            case "--port":
                port = Integer.parseInt(args[++i]);
                break;
            case "--host":
                host = args[++i];
                break;
            case "--stop-port":
                stopPort = Integer.parseInt(args[++i]);
                break;
            case "--stop-key":
                stopKey = args[++i];
                break;
            case "--log":
                _logFile = args[++i];
                break;
            case "--out":
                String outFile = args[++i];
                PrintStream out = new PrintStream(new RolloverFileOutputStream(outFile, true, -1));
                LOG.info("Redirecting stderr/stdout to " + outFile);
                System.setErr(out);
                System.setOut(out);
                break;
            case "--path":
                contextPath = args[++i];
                contextPathSet = true;
                break;
            case "--config":
                if (_configFiles == null)
                    _configFiles = new ArrayList<>();
                _configFiles.add(args[++i]);
                break;
            case "--lib":
                //skip
                ++i;
                break;
            case "--jar":
                //skip
                ++i;
                break;
            case "--classes":
                //skip
                ++i;
                break;
            case "--stats":
                _enableStats = true;
                _statsPropFile = args[++i];
                _statsPropFile = ("unsecure".equalsIgnoreCase(_statsPropFile) ? null : _statsPropFile);
                break;
            default:
                if (// log handlers not registered, server maybe not created, etc
                !runnerServerInitialized) {
                    if (// server not initialized yet
                    _server == null) {
                        // build the server
                        _server = new Server();
                    }
                    //apply jetty config files if there are any
                    if (_configFiles != null) {
                        for (String cfg : _configFiles) {
                            try (Resource resource = Resource.newResource(cfg)) {
                                XmlConfiguration xmlConfiguration = new XmlConfiguration(resource.getURL());
                                xmlConfiguration.configure(_server);
                            }
                        }
                    }
                    //check that everything got configured, and if not, make the handlers
                    HandlerCollection handlers = (HandlerCollection) _server.getChildHandlerByClass(HandlerCollection.class);
                    if (handlers == null) {
                        handlers = new HandlerCollection();
                        _server.setHandler(handlers);
                    }
                    //check if contexts already configured
                    _contexts = (ContextHandlerCollection) handlers.getChildHandlerByClass(ContextHandlerCollection.class);
                    if (_contexts == null) {
                        _contexts = new ContextHandlerCollection();
                        prependHandler(_contexts, handlers);
                    }
                    if (_enableStats) {
                        //if no stats handler already configured
                        if (handlers.getChildHandlerByClass(StatisticsHandler.class) == null) {
                            StatisticsHandler statsHandler = new StatisticsHandler();
                            Handler oldHandler = _server.getHandler();
                            statsHandler.setHandler(oldHandler);
                            _server.setHandler(statsHandler);
                            ServletContextHandler statsContext = new ServletContextHandler(_contexts, "/stats");
                            statsContext.addServlet(new ServletHolder(new StatisticsServlet()), "/");
                            statsContext.setSessionHandler(new SessionHandler());
                            if (_statsPropFile != null) {
                                HashLoginService loginService = new HashLoginService("StatsRealm", _statsPropFile);
                                Constraint constraint = new Constraint();
                                constraint.setName("Admin Only");
                                constraint.setRoles(new String[] { "admin" });
                                constraint.setAuthenticate(true);
                                ConstraintMapping cm = new ConstraintMapping();
                                cm.setConstraint(constraint);
                                cm.setPathSpec("/*");
                                ConstraintSecurityHandler securityHandler = new ConstraintSecurityHandler();
                                securityHandler.setLoginService(loginService);
                                securityHandler.setConstraintMappings(Collections.singletonList(cm));
                                securityHandler.setAuthenticator(new BasicAuthenticator());
                                statsContext.setSecurityHandler(securityHandler);
                            }
                        }
                    }
                    //ensure a DefaultHandler is present
                    if (handlers.getChildHandlerByClass(DefaultHandler.class) == null) {
                        handlers.addHandler(new DefaultHandler());
                    }
                    //ensure a log handler is present
                    _logHandler = (RequestLogHandler) handlers.getChildHandlerByClass(RequestLogHandler.class);
                    if (_logHandler == null) {
                        _logHandler = new RequestLogHandler();
                        handlers.addHandler(_logHandler);
                    }
                    //check a connector is configured to listen on
                    Connector[] connectors = _server.getConnectors();
                    if (connectors == null || connectors.length == 0) {
                        ServerConnector connector = new ServerConnector(_server);
                        connector.setPort(port);
                        if (host != null)
                            connector.setHost(host);
                        _server.addConnector(connector);
                        if (_enableStats)
                            connector.addBean(new ConnectionStatistics());
                    } else {
                        if (_enableStats) {
                            for (Connector connector : connectors) {
                                ((AbstractConnector) connector).addBean(new ConnectionStatistics());
                            }
                        }
                    }
                    runnerServerInitialized = true;
                }
                // Create a context
                try (Resource ctx = Resource.newResource(args[i])) {
                    if (!ctx.exists())
                        usage("Context '" + ctx + "' does not exist");
                    if (contextPathSet && !(contextPath.startsWith("/")))
                        contextPath = "/" + contextPath;
                    // Configure the context
                    if (!ctx.isDirectory() && ctx.toString().toLowerCase(Locale.ENGLISH).endsWith(".xml")) {
                        // It is a context config file
                        XmlConfiguration xmlConfiguration = new XmlConfiguration(ctx.getURL());
                        xmlConfiguration.getIdMap().put("Server", _server);
                        ContextHandler handler = (ContextHandler) xmlConfiguration.configure();
                        if (contextPathSet)
                            handler.setContextPath(contextPath);
                        _contexts.addHandler(handler);
                        String containerIncludeJarPattern = (String) handler.getAttribute(WebInfConfiguration.CONTAINER_JAR_PATTERN);
                        if (containerIncludeJarPattern == null)
                            containerIncludeJarPattern = __containerIncludeJarPattern;
                        else {
                            if (!containerIncludeJarPattern.contains(__containerIncludeJarPattern)) {
                                containerIncludeJarPattern = containerIncludeJarPattern + (StringUtil.isBlank(containerIncludeJarPattern) ? "" : "|") + __containerIncludeJarPattern;
                            }
                        }
                        handler.setAttribute(WebInfConfiguration.CONTAINER_JAR_PATTERN, containerIncludeJarPattern);
                        //check the configurations, if not explicitly set up, then configure all of them
                        if (handler instanceof WebAppContext) {
                            WebAppContext wac = (WebAppContext) handler;
                            if (wac.getConfigurationClasses() == null || wac.getConfigurationClasses().length == 0)
                                wac.setConfigurationClasses(__plusConfigurationClasses);
                        }
                    } else {
                        // assume it is a WAR file
                        WebAppContext webapp = new WebAppContext(_contexts, ctx.toString(), contextPath);
                        webapp.setConfigurationClasses(__plusConfigurationClasses);
                        webapp.setAttribute(WebInfConfiguration.CONTAINER_JAR_PATTERN, __containerIncludeJarPattern);
                    }
                }
                //reset
                contextPathSet = false;
                contextPath = __defaultContextPath;
                break;
        }
    }
    if (_server == null)
        usage("No Contexts defined");
    _server.setStopAtShutdown(true);
    switch((stopPort > 0 ? 1 : 0) + (stopKey != null ? 2 : 0)) {
        case 1:
            usage("Must specify --stop-key when --stop-port is specified");
            break;
        case 2:
            usage("Must specify --stop-port when --stop-key is specified");
            break;
        case 3:
            ShutdownMonitor monitor = ShutdownMonitor.getInstance();
            monitor.setPort(stopPort);
            monitor.setKey(stopKey);
            monitor.setExitVm(true);
            break;
    }
    if (_logFile != null) {
        NCSARequestLog requestLog = new NCSARequestLog(_logFile);
        requestLog.setExtended(false);
        _logHandler.setRequestLog(requestLog);
    }
}