Examples of io.undertow.server.handlers.proxy.LoadBalancingProxyClient$StickeySessionWrapper

Package io.undertow.server.handlers.proxy

Examples of io.undertow.server.handlers.proxy.LoadBalancingProxyClient$StickeySessionWrapper

io.undertow.server.handlers.proxy.LoadBalancingProxyClient
Initial implementation of a load balancing proxy client. This initial implementation is rather simplistic, and will likely change.
TODO stickey sessions don't work 100% when proxying to multiple applications, as it is possible that they will recieve a different assigned host for each applications session, and the session is tied to the exchanges connection. @author Stuart Douglas

        String sessionCookieNames = SESSION_COOKIE_NAMES.resolveModelAttribute(context, model).asString();
        int connectionsPerThread = CONNECTIONS_PER_THREAD.resolveModelAttribute(context, model).asInt();
        int problemServerRetry = PROBLEM_SERVER_RETRY.resolveModelAttribute(context, model).asInt();
        int maxTime = MAX_REQUEST_TIME.resolveModelAttribute(context, model).asInt();


        final LoadBalancingProxyClient lb = new LoadBalancingProxyClient(new ExclusivityChecker() {
            @Override
            public boolean isExclusivityRequired(HttpServerExchange exchange) {
                //we always create a new connection for upgrade requests
                return exchange.getRequestHeaders().contains(Headers.UPGRADE);
            }
        })
                .setConnectionsPerThread(connectionsPerThread)
                .setProblemServerRetry(problemServerRetry);
        String[] sessionIds = sessionCookieNames.split(",");
        for (String id : sessionIds) {
            lb.addSessionCookieName(id);
        }


        ProxyHandler handler = new ProxyHandler(lb, maxTime, ResponseCodeHandler.HANDLE_404);
        return handler;
    }

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            return new URI(scheme, null, binding.getUnresolvedDestinationAddress(), binding.getDestinationPort(), path, null, null);
        }


        @Override
        public void start(StartContext startContext) throws StartException {
            final LoadBalancingProxyClient client = (LoadBalancingProxyClient) proxyHandler.getValue().getProxyClient();


            try {
                client.addHost(getUri(), instanceId);
            } catch (URISyntaxException e) {
                throw new StartException(e);
            }
        }

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            }
        }


        @Override
        public void stop(StopContext stopContext) {
            final LoadBalancingProxyClient client = (LoadBalancingProxyClient) proxyHandler.getValue().getProxyClient();
            try {
                client.removeHost(getUri());
            } catch (URISyntaxException e) {
                throw new RuntimeException(e); //impossible
            }
        }

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                    })
                    .build();


            server3.start();


            LoadBalancingProxyClient loadBalancer = new LoadBalancingProxyClient()
                    .addHost(new URI("http://localhost:8081"))
                    .addHost(new URI("http://localhost:8082"))
                    .addHost(new URI("http://localhost:8083"))
                    .setConnectionsPerThread(20);

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                        server = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), 7777 + PROXY_OFFSET), acceptListener, serverOptions);


                        proxyOpenListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                        proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                        proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                        proxyOpenListener.setRootHandler(new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("ajp", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null)), 120000, HANDLE_404));
                        proxyServer.resumeAccepts();


                    }
                } else if (spdy && isAlpnEnabled()) {
                    openListener = new SpdyOpenListener(new DebuggingSlicePool(new ByteBufferSlicePool(BufferAllocator.DIRECT_BYTE_BUFFER_ALLOCATOR, 2* BUFFER_SIZE, 100 * BUFFER_SIZE)), new ByteBufferSlicePool(BufferAllocator.BYTE_BUFFER_ALLOCATOR, BUFFER_SIZE, BUFFER_SIZE), OptionMap.create(UndertowOptions.ENABLE_SPDY, true));
                    acceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(new AlpnOpenListener(pool).addProtocol(SpdyOpenListener.SPDY_3_1, (io.undertow.server.DelegateOpenListener) openListener, 5)));


                    SSLContext serverContext = createSSLContext(loadKeyStore(SERVER_KEY_STORE), loadKeyStore(SERVER_TRUST_STORE));
                    SSLContext clientContext = createSSLContext(loadKeyStore(CLIENT_KEY_STORE), loadKeyStore(CLIENT_TRUST_STORE));
                    XnioSsl xnioSsl = new JsseXnioSsl(xnio, OptionMap.EMPTY, serverContext);
                    server = xnioSsl.createSslConnectionServer(worker, new InetSocketAddress(getHostAddress("default"), 7777 + PROXY_OFFSET), acceptListener, OptionMap.EMPTY);
                    server.resumeAccepts();


                    proxyOpenListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                    proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                    proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                    ProxyHandler proxyHandler = new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("spdy", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null), null, new JsseXnioSsl(xnio, OptionMap.EMPTY, clientContext), OptionMap.create(UndertowOptions.ENABLE_SPDY, true)), 120000, HANDLE_404);
                    setupProxyHandlerForSSL(proxyHandler);
                    proxyOpenListener.setRootHandler(proxyHandler);
                    proxyServer.resumeAccepts();




                } else if (h2 && isAlpnEnabled()) {
                    openListener = new Http2OpenListener(new DebuggingSlicePool(new ByteBufferSlicePool(BufferAllocator.DIRECT_BYTE_BUFFER_ALLOCATOR, 2* BUFFER_SIZE, 100 * BUFFER_SIZE)), OptionMap.create(UndertowOptions.ENABLE_HTTP2, true, UndertowOptions.HTTP2_SETTINGS_ENABLE_PUSH, false));
                    acceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(new AlpnOpenListener(pool).addProtocol(Http2OpenListener.HTTP2, (io.undertow.server.DelegateOpenListener) openListener, 10)));


                    SSLContext serverContext = createSSLContext(loadKeyStore(SERVER_KEY_STORE), loadKeyStore(SERVER_TRUST_STORE));
                    SSLContext clientContext = createSSLContext(loadKeyStore(CLIENT_KEY_STORE), loadKeyStore(CLIENT_TRUST_STORE));
                    XnioSsl xnioSsl = new JsseXnioSsl(xnio, OptionMap.EMPTY, serverContext);
                    server = xnioSsl.createSslConnectionServer(worker, new InetSocketAddress(getHostAddress("default"), 7777 + PROXY_OFFSET), acceptListener, OptionMap.EMPTY);
                    server.resumeAccepts();


                    proxyOpenListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                    proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                    proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                    ProxyHandler proxyHandler = new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("h2", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null), null, new JsseXnioSsl(xnio, OptionMap.EMPTY, clientContext), OptionMap.create(UndertowOptions.ENABLE_HTTP2, true)), 120000, HANDLE_404);
                    setupProxyHandlerForSSL(proxyHandler);
                    proxyOpenListener.setRootHandler(proxyHandler);
                    proxyServer.resumeAccepts();




                } else if (h2c) {
                    openListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true, UndertowOptions.HTTP2_SETTINGS_ENABLE_PUSH, false));
                    acceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(openListener));


                    InetSocketAddress targetAddress = new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT) + PROXY_OFFSET);
                    server = worker.createStreamConnectionServer(targetAddress, acceptListener, serverOptions);


                    proxyOpenListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                    proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                    proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                    ProxyHandler proxyHandler = new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("h2c", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null)), 30000, HANDLE_404);
                    setupProxyHandlerForSSL(proxyHandler);
                    proxyOpenListener.setRootHandler(proxyHandler);
                    proxyServer.resumeAccepts();


                } else if (spdyPlain) {
                    openListener = new SpdyPlainOpenListener(new DebuggingSlicePool(new ByteBufferSlicePool(BufferAllocator.DIRECT_BYTE_BUFFER_ALLOCATOR, 2* BUFFER_SIZE, 100 * BUFFER_SIZE)), new ByteBufferSlicePool(BufferAllocator.BYTE_BUFFER_ALLOCATOR, BUFFER_SIZE, BUFFER_SIZE), OptionMap.create(UndertowOptions.ENABLE_SPDY, true));
                    acceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(openListener));


                    server = worker.createStreamConnectionServer(new InetSocketAddress(getHostAddress("default"), 7777 + PROXY_OFFSET), acceptListener, OptionMap.EMPTY);
                    server.resumeAccepts();


                    proxyOpenListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                    proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                    proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                    ProxyHandler proxyHandler = new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("spdy-plain", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null), null, null, OptionMap.create(UndertowOptions.ENABLE_SPDY, true)), 120000, HANDLE_404);
                    setupProxyHandlerForSSL(proxyHandler);
                    proxyOpenListener.setRootHandler(proxyHandler);
                    proxyServer.resumeAccepts();




                } else if (https) {


                    XnioSsl xnioSsl = new JsseXnioSsl(xnio, OptionMap.EMPTY, getServerSslContext());
                    XnioSsl clientSsl = new JsseXnioSsl(xnio, OptionMap.EMPTY, createClientSslContext());
                    openListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                    acceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(openListener));


                    InetSocketAddress targetAddress = new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT) + PROXY_OFFSET);
                    server = xnioSsl.createSslConnectionServer(worker, targetAddress, acceptListener, serverOptions);


                    proxyOpenListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                    proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                    proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                    ProxyHandler proxyHandler = new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("https", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null), clientSsl), 30000, HANDLE_404);
                    setupProxyHandlerForSSL(proxyHandler);
                    proxyOpenListener.setRootHandler(proxyHandler);
                    proxyServer.resumeAccepts();




                } else {
                    if(h2) {
                        log.error("HTTP2 selected but Netty ALPN was not on the boot class path");
                    }
                    if(spdy) {
                        log.error("SPDY selected but Netty ALPN was not on the boot class path");
                    }
                    openListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true, UndertowOptions.ENABLE_CONNECTOR_STATISTICS, true));
                    acceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(openListener));
                    if (!proxy) {
                        server = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), acceptListener, serverOptions);
                    } else {
                        InetSocketAddress targetAddress = new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT) + PROXY_OFFSET);
                        server = worker.createStreamConnectionServer(targetAddress, acceptListener, serverOptions);


                        proxyOpenListener = new HttpOpenListener(pool, OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true));
                        proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                        proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                        ProxyHandler proxyHandler = new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("http", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null)), 30000, HANDLE_404);
                        setupProxyHandlerForSSL(proxyHandler);
                        proxyOpenListener.setRootHandler(proxyHandler);
                        proxyServer.resumeAccepts();
                    }

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                    })
                    .build();


            server3.start();


            LoadBalancingProxyClient loadBalancer = new LoadBalancingProxyClient()
                    .addHost(new URI("http://localhost:8081"))
                    .addHost(new URI("http://localhost:8082"))
                    .addHost(new URI("http://localhost:8083"))
                    .setConnectionsPerThread(20);

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                        server = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), 7777 + PROXY_OFFSET), acceptListener, serverOptions);


                        proxyOpenListener = new HttpOpenListener(new ByteBufferSlicePool(BufferAllocator.DIRECT_BYTE_BUFFER_ALLOCATOR, 8192, 100 * 8192), OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true), 8192);
                        proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                        proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                        proxyOpenListener.setRootHandler(new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("ajp", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null)), 120000, HANDLE_404));
                        proxyServer.resumeAccepts();


                    }
                } else {
                    openListener = new HttpOpenListener(new ByteBufferSlicePool(BufferAllocator.DIRECT_BYTE_BUFFER_ALLOCATOR, 8192, 100 * 8192), OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true), 8192);
                    acceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(openListener));
                    if (!proxy) {
                        server = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), acceptListener, serverOptions);
                    } else {
                        InetSocketAddress targetAddress = new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT) + PROXY_OFFSET);
                        server = worker.createStreamConnectionServer(targetAddress, acceptListener, serverOptions);


                        proxyOpenListener = new HttpOpenListener(new ByteBufferSlicePool(BufferAllocator.DIRECT_BYTE_BUFFER_ALLOCATOR, 8192, 100 * 8192), OptionMap.create(UndertowOptions.BUFFER_PIPELINED_DATA, true), 8192);
                        proxyAcceptListener = ChannelListeners.openListenerAdapter(wrapOpenListener(proxyOpenListener));
                        proxyServer = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(getHostAddress(DEFAULT)), getHostPort(DEFAULT)), proxyAcceptListener, serverOptions);
                        ProxyHandler proxyHandler = new ProxyHandler(new LoadBalancingProxyClient(GSSAPIAuthenticationMechanism.EXCLUSIVITY_CHECKER).addHost(new URI("http", null, getHostAddress(DEFAULT), getHostPort(DEFAULT) + PROXY_OFFSET, "/", null, null)), 30000, HANDLE_404);
                        setupProxyHandlerForSSL(proxyHandler);
                        proxyOpenListener.setRootHandler(proxyHandler);
                        proxyServer.resumeAccepts();
                    }

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                    })
                    .build();


            server3.start();


            LoadBalancingProxyClient loadBalancer = new LoadBalancingProxyClient()
                    .addHost(new URI("http://localhost:8081"))
                    .addHost(new URI("http://localhost:8082"))
                    .addHost(new URI("http://localhost:8083"))
                    .setConnectionsPerThread(20);

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