Examples of io.undertow.io.Sender

io.undertow.io.Sender
Sender interface that allows for callback based async IO. Note that all methods on this class are asynchronous, and may result in dispatch to an IO thread. After calling a method on this class you should not perform any more work on the current exchange until the callback is invoked. NOTE: implementers of this interface should be careful that they do not recursively call onComplete, which can lead to stack overflows if send is called many times. @author Stuart Douglas

            }
        }


        exchange.setResponseCode(200);
        exchange.getResponseHeaders().add(Headers.CONTENT_TYPE, "text/html; charset=ISO-8859-1");
        final Sender resp = exchange.getResponseSender();


        final StringBuilder buf = new StringBuilder();
        buf.append("<html><head>\n<title>Mod_cluster Status</title>\n</head><body>\n");
        buf.append("<h1>" + MOD_CLUSTER_EXPOSED_VERSION + "</h1>");


        final String uri = exchange.getRequestPath();
        final String nonce = getNonce();
        if (refreshTime <= 0) {
            buf.append("<a href=\"").append(uri).append("?").append(nonce).append("&refresh=").append(refreshTime).append("\">Auto Refresh</a>");
        }
        buf.append(" <a href=\"").append(uri).append("?").append(nonce).append("&Cmd=DUMP&Range=ALL").append("\">show DUMP output</a>");
        buf.append(" <a href=\"").append(uri).append("?").append(nonce).append("&Cmd=INFO&Range=ALL").append("\">show INFO output</a>");
        buf.append("\n");


        // Show load balancing groups
        final Map<String, List<Node>> nodes = new LinkedHashMap<>();
        for (final Node node : container.getNodes()) {
            final String domain = node.getNodeConfig().getDomain() != null ? node.getNodeConfig().getDomain() : "";
            List<Node> list = nodes.get(domain);
            if (list == null) {
                list = new ArrayList<>();
                nodes.put(domain, list);
            }
            list.add(node);
        }


        for (Map.Entry<String, List<Node>> entry : nodes.entrySet()) {
            final String groupName = entry.getKey();
            if (reduceDisplay) {
                buf.append("<br/><br/>LBGroup " + groupName + ": ");
            } else {
                buf.append("<h1> LBGroup " + groupName + ": ");
            }
            if (allowCmd) {
                domainCommandString(buf, uri, MCMPAction.ENABLE, groupName);
                domainCommandString(buf, uri, MCMPAction.DISABLE, groupName);
            }


            for (final Node node : entry.getValue()) {
                final NodeConfig nodeConfig = node.getNodeConfig();
                if (reduceDisplay) {
                    buf.append("<br/><br/>Node " + nodeConfig.getJvmRoute());
                    printProxyStat(buf, node, reduceDisplay);
                } else {
                    buf.append("<h1> Node " + nodeConfig.getJvmRoute() + " (" + nodeConfig.getConnectionURI() + "): </h1>\n");
                }


                if (allowCmd) {
                    nodeCommandString(buf, uri, MCMPAction.ENABLE, nodeConfig.getJvmRoute());
                    nodeCommandString(buf, uri, MCMPAction.DISABLE, nodeConfig.getJvmRoute());
                }
                if (!reduceDisplay) {
                    buf.append("<br/>\n");
                    buf.append("Balancer: " + nodeConfig.getBalancer() + ",LBGroup: " + nodeConfig.getDomain());
                    String flushpackets = "off";
                    if (nodeConfig.isFlushPackets()) {
                        flushpackets = "Auto";
                    }
                    buf.append(",Flushpackets: " + flushpackets + ",Flushwait: " + nodeConfig.getFlushwait() + ",Ping: " + nodeConfig.getPing() + " ,Smax: " + nodeConfig.getPing() + ",Ttl: " + nodeConfig.getTtl());
                    printProxyStat(buf, node, reduceDisplay);
                } else {
                    buf.append("<br/>\n");
                }
                // the sessionid list is mostly for demos.
                if (displaySessionIds) {
                    // buf.append(",Num sessions: " + container.getJVMRouteSessionCount(nodeConfig.getJvmRoute()));
                }
                buf.append("\n");


                // Process the virtual-host of the node
                printInfoHost(buf, uri, reduceDisplay, allowCmd, node);
            }
        }


        // Display the all the actives sessions
        if (displaySessionIds) {
            printInfoSessions(buf, Collections.<SessionId>emptyList());
        }


        buf.append("</body></html>\n");
        resp.send(buf.toString());
    }

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                }
                Set<Integer> codes = responseCodes;
                if (codes == null ? exchange.getResponseCode() >= 400 : codes.contains(Integer.valueOf(exchange.getResponseCode()))) {
                    final String errorPage = "<html><head><title>Error</title></head><body>" + exchange.getResponseCode() + " - " + StatusCodes.getReason(exchange.getResponseCode()) + "</body></html>";
                    exchange.getResponseHeaders().put(Headers.CONTENT_LENGTH, "" + errorPage.length());
                    Sender sender = exchange.getResponseSender();
                    sender.send(errorPage);
                    return true;
                }
                return false;
            }
        });

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            underlyingResource.serve(sender, exchange, completionCallback);
            return;
        }
        //it is not cached yet, install a wrapper to grab the data
        if (existing == null || !existing.enabled() || !existing.reference()) {
            Sender newSender = sender;


            final DirectBufferCache.CacheEntry entry;
            if (existing == null) {
                entry = dataCache.add(cacheKey, length.intValue(), cachingResourceManager.getMaxAge());
            } else {

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            handleRequest(method, exchange);
        } catch (Exception e) {
            UndertowLogger.ROOT_LOGGER.errorf(e, "failed to process management request");
            exchange.setResponseCode(500);
            exchange.getResponseHeaders().add(Headers.CONTENT_TYPE, CONTENT_TYPE);
            final Sender sender = exchange.getResponseSender();
            sender.send("failed to process management request");
        }
    }

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     * @param response    the response string
     */
    static void sendResponse(final HttpServerExchange exchange, final String response) {
        exchange.setResponseCode(200);
        exchange.getResponseHeaders().add(Headers.CONTENT_TYPE, CONTENT_TYPE);
        final Sender sender = exchange.getResponseSender();
        sender.send(response);
    }

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            }
        }


        exchange.setResponseCode(200);
        exchange.getResponseHeaders().add(Headers.CONTENT_TYPE, "text/html; charset=ISO-8859-1");
        final Sender resp = exchange.getResponseSender();


        final StringBuilder buf = new StringBuilder();
        buf.append("<html><head>\n<title>Mod_cluster Status</title>\n</head><body>\n");
        buf.append("<h1>" + MOD_CLUSTER_EXPOSED_VERSION + "</h1>");


        final String uri = exchange.getRequestPath();
        final String nonce = getNonce();
        if (refreshTime <= 0) {
            buf.append("<a href=\"").append(uri).append("?").append(nonce).append("&refresh=").append(refreshTime).append("\">Auto Refresh</a>");
        }
        buf.append(" <a href=\"").append(uri).append("?").append(nonce).append("&Cmd=DUMP&Range=ALL").append("\">show DUMP output</a>");
        buf.append(" <a href=\"").append(uri).append("?").append(nonce).append("&Cmd=INFO&Range=ALL").append("\">show INFO output</a>");
        buf.append("\n");


        // Show load balancing groups
        final Map<String, List<Node>> nodes = new LinkedHashMap<>();
        for (final Node node : container.getNodes()) {
            final String domain = node.getNodeConfig().getDomain() != null ? node.getNodeConfig().getDomain() : "";
            List<Node> list = nodes.get(domain);
            if (list == null) {
                list = new ArrayList<>();
                nodes.put(domain, list);
            }
            list.add(node);
        }


        for (Map.Entry<String, List<Node>> entry : nodes.entrySet()) {
            final String groupName = entry.getKey();
            if (reduceDisplay) {
                buf.append("<br/><br/>LBGroup " + groupName + ": ");
            } else {
                buf.append("<h1> LBGroup " + groupName + ": ");
            }
            if (allowCmd) {
                domainCommandString(buf, uri, MCMPAction.ENABLE, groupName);
                domainCommandString(buf, uri, MCMPAction.DISABLE, groupName);
            }


            for (final Node node : entry.getValue()) {
                final NodeConfig nodeConfig = node.getNodeConfig();
                if (reduceDisplay) {
                    buf.append("<br/><br/>Node " + nodeConfig.getJvmRoute());
                    printProxyStat(buf, node, reduceDisplay);
                } else {
                    buf.append("<h1> Node " + nodeConfig.getJvmRoute() + " (" + nodeConfig.getConnectionURI() + "): </h1>\n");
                }


                if (allowCmd) {
                    nodeCommandString(buf, uri, MCMPAction.ENABLE, nodeConfig.getJvmRoute());
                    nodeCommandString(buf, uri, MCMPAction.DISABLE, nodeConfig.getJvmRoute());
                }
                if (!reduceDisplay) {
                    buf.append("<br/>\n");
                    buf.append("Balancer: " + nodeConfig.getBalancer() + ",LBGroup: " + nodeConfig.getDomain());
                    String flushpackets = "off";
                    if (nodeConfig.isFlushPackets()) {
                        flushpackets = "Auto";
                    }
                    buf.append(",Flushpackets: " + flushpackets + ",Flushwait: " + nodeConfig.getFlushwait() + ",Ping: " + nodeConfig.getPing() + " ,Smax: " + nodeConfig.getPing() + ",Ttl: " + nodeConfig.getTtl());
                    printProxyStat(buf, node, reduceDisplay);
                } else {
                    buf.append("<br/>\n");
                }
                // the sessionid list is mostly for demos.
                if (displaySessionIds) {
                    // buf.append(",Num sessions: " + container.getJVMRouteSessionCount(nodeConfig.getJvmRoute()));
                }
                buf.append("\n");


                // Process the virtual-host of the node
                printInfoHost(buf, uri, reduceDisplay, allowCmd, node);
            }
        }


        // Display the all the actives sessions
        if (displaySessionIds) {
            printInfoSessions(buf, Collections.<SessionId>emptyList());
        }


        buf.append("</body></html>\n");
        resp.send(buf.toString());
    }

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                Set<Integer> codes = responseCodes;
                if (codes == null ? exchange.getResponseCode() >= 400 : codes.contains(Integer.valueOf(exchange.getResponseCode()))) {
                    final String errorPage = "<html><head><title>Error</title></head><body>" + exchange.getResponseCode() + " - " + StatusCodes.getReason(exchange.getResponseCode()) + "</body></html>";
                    exchange.getResponseHeaders().put(Headers.CONTENT_LENGTH, "" + errorPage.length());
                    exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/html");
                    Sender sender = exchange.getResponseSender();
                    sender.send(errorPage);
                    return true;
                }
                return false;
            }
        });

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            return;
        }
        final DirectBufferCache.CacheEntry existing = dataCache.get(cacheKey);
        //it is not cached yet, install a wrapper to grab the data
        if (existing == null || !existing.enabled() || !existing.reference()) {
            Sender newSender = sender;


            final DirectBufferCache.CacheEntry entry;
            if (existing == null) {
                entry = dataCache.add(cacheKey, length.intValue());
            } else {

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                Set<Integer> codes = responseCodes;
                if (codes == null ? exchange.getResponseCode() >= 400 : codes.contains(Integer.valueOf(exchange.getResponseCode()))) {
                    final String errorPage = "<html><head><title>Error</title></head><body>" + exchange.getResponseCode() + " - " + StatusCodes.getReason(exchange.getResponseCode()) + "</body></html>";
                    exchange.getResponseHeaders().put(Headers.CONTENT_LENGTH, "" + errorPage.length());
                    exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/html");
                    Sender sender = exchange.getResponseSender();
                    sender.send(errorPage);
                    return true;
                }
                return false;
            }
        });

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            underlyingResource.serve(sender, exchange, completionCallback);
            return;
        }
        //it is not cached yet, install a wrapper to grab the data
        if (existing == null || !existing.enabled() || !existing.reference()) {
            Sender newSender = sender;


            final DirectBufferCache.CacheEntry entry;
            if (existing == null) {
                entry = dataCache.add(cacheKey, length.intValue(), cachingResourceManager.getMaxAge());
            } else {

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