Example usage for javax.servlet AsyncContext getResponse

List of usage examples for javax.servlet AsyncContext getResponse

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Introduction

In this page you can find the example usage for javax.servlet AsyncContext getResponse.

Prototype

public ServletResponse getResponse();

Source Link

Document

Gets the response that was used to initialize this AsyncContext by calling ServletRequest#startAsync() or ServletRequest#startAsync(ServletRequest,ServletResponse) .

Usage

From source file:org.silverpeas.core.notification.sse.SilverpeasAsyncContext.java

/**
 * Wraps the given instance. Nothing is wrapped if the given instance is a wrapped one.
 * @param silverLogger the sse silverpeas logger.
 * @param asyncContext the instance to wrap.
 * @param userSessionId the identifier or the user session.
 * @param user the identifier of th user linked to the async request.
 * @return the wrapped given instance.//from   ww  w .j  a  v  a2s .  c o  m
 */
public static SilverpeasAsyncContext wrap(final SilverLogger silverLogger, AsyncContext asyncContext,
        final String userSessionId, User user) {
    if (asyncContext instanceof SilverpeasAsyncContext) {
        return (SilverpeasAsyncContext) asyncContext;
    }

    final SilverpeasAsyncContext context = new SilverpeasAsyncContext(asyncContext, userSessionId, user);
    final ServletRequest request = asyncContext.getRequest();
    final ServletResponse response = asyncContext.getResponse();
    context.addListener(new SilverpeasAsyncListener(silverLogger, context), request, response);
    return context;
}

From source file:com.jsmartframework.web.manager.WebContext.java

/**
 * Write response directly as Event-Stream for Server Sent Events.
 *
 * @param asyncContext - Asynchronous Context.
 * @param event - Name of event to be written on response.
 * @param data - Content of event ot be written on response.
 * @param retry - Time in (milliseconds) for client retry opening connection.
 *              after asynchronous context is closed.
 * @throws IOException/*from w w w . j  av a  2 s .c o  m*/
 */
public static void writeResponseAsEventStream(AsyncContext asyncContext, String event, Object data, Long retry)
        throws IOException {
    if (asyncContext != null && event != null && data != null) {
        HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();
        response.setContentType("text/event-stream");
        PrintWriter printWriter = response.getWriter();

        if (retry != null) {
            printWriter.write("retry:" + retry + "\n");
        }
        printWriter.write("event:" + event + "\n");
        printWriter.write("data:" + data + "\n\n");
        printWriter.flush();
    }
}

From source file:eu.rethink.lhcb.broker.servlet.WellKnownServlet.java

private void completeAsyncContext(AsyncContext aContext, String message) {
    try {//from ww  w.j  a  va 2  s.  com
        aContext.getResponse().getWriter().write(message);
        aContext.getResponse().getWriter().flush();
    } catch (IOException e1) {
        LOG.error("Unable to send message '" + message + "'to requester", e1);
    }
    aContext.complete();
}

From source file:com.comcast.cqs.controller.CQSReceiveMessageBodyAction.java

@Override
public boolean doAction(User user, AsyncContext asyncContext) throws Exception {

    HttpServletRequest request = (HttpServletRequest) asyncContext.getRequest();
    HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();

    CQSQueue queue = CQSCache.getCachedQueue(user, request);

    HashMap<String, String> msgParam = new HashMap<String, String>();
    List<CQSMessage> messageList = PersistenceFactory.getCQSMessagePersistence().receiveMessage(queue,
            msgParam);//from ww  w.  jav a 2 s  .  c o m

    String out = "";
    response.setContentType("text/html");

    if (messageList.size() > 0) {

        out += messageList.get(0).getBody();

        try {
            new JSONObject(messageList.get(0).getBody());
            response.setContentType("application/json");
        } catch (JSONException ex) {
            // do nothing
        }
    }

    writeResponse(out, response);

    return true;
}

From source file:com.ibm.amc.feedback.FeedbackHandler.java

@Override
public void actionStatusUpdated(final ActionStatus status) {
    if (logger.isEntryEnabled())
        logger.entry("actionStatusUpdated", status);

    if (!status.isSynchronous()) {
        final String user = status.getUserId();

        final Set<AsyncContext> contexts = feedbackListeners.remove(user);
        if (contexts == null) {
            // No one waiting - queue status
            if (logger.isDebugEnabled())
                logger.debug("actionStatusUpdated", "Queuing status update for action " + status.getActionId());
            queueActionStatus(status);/*from www  .  ja  va 2  s .c o  m*/
        } else {
            // Request waiting - send response immediately
            if (logger.isDebugEnabled())
                logger.debug("actionStatusUpdated", "Sending status update for action " + status.getActionId());
            final Queue<ActionStatusResponse> queue = new LinkedList<ActionStatusResponse>();
            queue.offer(new ActionStatusResponse(status));
            for (AsyncContext ctx : contexts) {
                writeResponse(ctx.getResponse(), queue);
                ctx.complete();
            }
        }
    }

    if (logger.isEntryEnabled())
        logger.exit("actionStatusUpdated");
}

From source file:com.comcast.cns.controller.CNSSetSubscriptionAttributesAction.java

/**
 * The method simply gets the information from the user and request to set the subscription attributes based 
 * on what the user passed as the "AttributeName", and set that attribute to "AttributeValue"
 * //w w  w. j a  v a 2 s.  c  o m
 * @param user the user for whom we are setting the subscription attributes
 * @param asyncContext
 */
@Override
public boolean doAction(User user, AsyncContext asyncContext) throws Exception {

    HttpServletRequest request = (HttpServletRequest) asyncContext.getRequest();
    HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();

    String userId = user.getUserId();
    String attributeName = request.getParameter("AttributeName");
    String attributeValue = request.getParameter("AttributeValue");
    String subscriptionArn = request.getParameter("SubscriptionArn");

    logger.debug("event=cns_set_subscription_attributes attribute_name=" + attributeName + " attribute_value="
            + attributeValue + " subscription_arn=" + subscriptionArn + " user_id=" + userId);

    if ((userId == null) || (subscriptionArn == null) || (attributeName == null) || (attributeValue == null)) {
        logger.error("event=cns_set_subscription_attributes error_code=InvalidParameters attribute_name="
                + attributeName + " attribute_value=" + attributeValue + " subscription_arn=" + subscriptionArn
                + " user_id=" + userId);
        throw new CMBException(CNSErrorCodes.CNS_InvalidParameter, "missing parameters");
    }

    CNSSubscriptionAttributes subscriptionAttributes = new CNSSubscriptionAttributes();

    if (attributeName.equals("DeliveryPolicy")) {
        JSONObject json = new JSONObject(attributeValue);
        CNSSubscriptionDeliveryPolicy deliveryPolicy = new CNSSubscriptionDeliveryPolicy(json);
        subscriptionAttributes.setDeliveryPolicy(deliveryPolicy);
    } else if (attributeName.equals("RawMessageDelivery")) {
        Boolean rawMessageDelivery = Boolean.parseBoolean(attributeValue);
        PersistenceFactory.getSubscriptionPersistence().setRawMessageDelivery(subscriptionArn,
                rawMessageDelivery);
    } else {
        logger.error("event=cns_set_subscription_attributes error_code=InvalidParameters attribute_name="
                + attributeName + " attribute_value=" + attributeValue + " subscription_arn=" + subscriptionArn
                + " user_id=" + userId);
        throw new CMBException(CNSErrorCodes.CNS_InvalidParameter,
                "AttributeName: " + attributeName + " is not a valid value");
    }

    PersistenceFactory.getCNSAttributePersistence().setSubscriptionAttributes(subscriptionAttributes,
            subscriptionArn);

    String out = CNSAttributePopulator.getSetSubscriptionAttributesResponse();
    logger.debug("event=cns_set_subscription_attributes attribute_name=" + attributeName + " attribute_value="
            + attributeValue + " subscription_arn=" + subscriptionArn + " user_id=" + userId);
    writeResponse(out, response);
    return true;
}

From source file:com.comcast.cqs.controller.CQSPeekMessageAction.java

@Override
public boolean doAction(User user, AsyncContext asyncContext) throws Exception {

    HttpServletRequest request = (HttpServletRequest) asyncContext.getRequest();
    HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();

    CQSQueue queue = CQSCache.getCachedQueue(user, request);
    List<CQSMessage> messageList = getMessages(request, true, queue);

    Map<String, String[]> requestParams = request.getParameterMap();
    List<String> filterAttributes = new ArrayList<String>();
    List<String> filterMessageAttributes = new ArrayList<String>();

    for (String k : requestParams.keySet()) {
        if (k.contains(CQSConstants.MESSAGE_ATTRIBUTE_NAME)) {
            filterMessageAttributes.add(requestParams.get(k)[0]);
        } else if (k.contains(CQSConstants.ATTRIBUTE_NAME)) {
            filterAttributes.add(requestParams.get(k)[0]);
        }/*  www  . j av  a 2 s  .com*/
    }

    String out = CQSMessagePopulator.getReceiveMessageResponseAfterSerializing(messageList, filterAttributes,
            filterMessageAttributes);
    writeResponse(out, response);

    return messageList == null ? false : true;
}

From source file:com.comcast.cns.controller.CNSSetTopicAttributesAction.java

@Override
public boolean doAction(User user, AsyncContext asyncContext) throws Exception {

    HttpServletRequest request = (HttpServletRequest) asyncContext.getRequest();
    HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();

    String userId = user.getUserId();
    String attributeName = request.getParameter("AttributeName");
    String attributeValue = request.getParameter("AttributeValue");
    String topicArn = request.getParameter("TopicArn");

    if ((userId == null) || (topicArn == null) || (attributeName == null) || (attributeValue == null)) {
        logger.error("event=cns_set_topic_attributes error_code=InvalidParameters attribute_name="
                + attributeName + " attribute_value=" + attributeValue + " topic_arn=" + topicArn + " user_id="
                + userId);/*from  w  ww  .  j ava  2  s. co  m*/
        throw new CMBException(CNSErrorCodes.CNS_InvalidParameter, "missing parameters");
    }

    CNSTopicAttributes topicAttributes = new CNSTopicAttributes();

    if (attributeName.equals("DeliveryPolicy")) {

        JSONObject json = new JSONObject(attributeValue);
        CNSTopicDeliveryPolicy deliveryPolicy = new CNSTopicDeliveryPolicy(json);
        topicAttributes.setDeliveryPolicy(deliveryPolicy);
        logger.debug("event=cns_set_topic_delivery_policy topic_arn=" + topicArn + " value="
                + topicAttributes.getEffectiveDeliveryPolicy());

    } else if (attributeName.equals("Policy")) {

        // validate policy before updating

        try {
            new CMBPolicy(attributeValue);
        } catch (Exception ex) {
            logger.warn("event=invalid_policy topic_arn=" + topicArn + " policy=" + attributeValue, ex);
            throw ex;
        }

        topicAttributes.setPolicy(attributeValue);
        logger.debug(
                "event=cns_set_topic_policy topic_arn=" + topicArn + "  value=" + topicAttributes.getPolicy());

    } else if (attributeName.equals("DisplayName")) {

        if (validateDisplayName(attributeValue)) {
            topicAttributes.setDisplayName(attributeValue);
            logger.debug(
                    "event=cns_set_topic_display_name topic_arn=" + topicArn + "  value=" + attributeValue);
        } else {
            throw new CMBException(CNSErrorCodes.CNS_InvalidParameter, "Bad Display Name");
        }

    } else {
        logger.error("event=cns_set_topic_attributes error_code=InvalidParameters attribute_name="
                + attributeName + " attribute_value=" + attributeValue + " topic_arn=" + topicArn + " user_id="
                + userId);
        throw new CMBException(CNSErrorCodes.CNS_InvalidParameter,
                "AttributeName: " + attributeName + " is not a valid value");
    }

    PersistenceFactory.getCNSAttributePersistence().setTopicAttributes(topicAttributes, topicArn);
    String out = CNSAttributePopulator.getSetTopicAttributesResponse();
    logger.debug("event=cns_set_topic_attributes attribute_name=" + attributeName + " attribute_value="
            + attributeValue + " topic_arn=" + topicArn + " user_id=" + userId);
    writeResponse(out, response);
    return true;
}

From source file:org.forumj.web.requesthandler.prehandler.LoginPreHandler.java

@Override
public boolean handle(AsyncContext context) throws FJWebException {
    boolean ok = true;
    HttpServletRequest request = (HttpServletRequest) context.getRequest();
    HttpServletResponse response = (HttpServletResponse) context.getResponse();
    try {/*w  w  w  . ja va  2 s .  co  m*/
        IUser user = (IUser) request.getSession(true).getAttribute("user");
        UserService userService = FJServiceHolder.getUserService();
        if (user == null || !user.isLogined()) {
            QuotedPrintableCodec codec = new QuotedPrintableCodec();
            Cookie[] cookies = request.getCookies();
            Cookie iduCookie = getCookie(cookies, "idu");
            Cookie pass2Cookie = getCookie(cookies, "pass2");
            if (pass2Cookie != null) {
                String pass2 = pass2Cookie.getValue();
                if (pass2 != null) {
                    pass2 = codec.decode(pass2);
                    user = userService.read(Long.valueOf(iduCookie.getValue()), pass2, false);
                    if (user == null) {
                        ok = false;
                    } else {
                        if (!user.getIsActive()) {
                            user = null;
                        } else {
                            request.getSession().setAttribute("user", user);
                        }
                    }
                } else {
                    ok = false;
                }
            }
        }
        if (user == null) {
            String iduParameter = request.getParameter("IDU");
            String pass1Parameter = request.getParameter("PS1");
            String pass2Parameter = request.getParameter("PS2");
            if (iduParameter != null && (pass1Parameter != null || pass2Parameter != null)) {
                boolean firstPassword = pass1Parameter != null;
                user = userService.read(Long.valueOf(iduParameter),
                        firstPassword ? pass1Parameter : pass2Parameter, firstPassword);
                if (user == null) {
                    ok = false;
                } else {
                    if (!user.getIsActive()) {
                        user = null;
                    } else {
                        request.getSession().setAttribute("user", user);
                    }
                }
            }
        }
        if (user == null) {
            user = userService.readUser(0l);
            request.getSession().setAttribute("user", user);
        }
        if (ok) {
            if (user != null && user.isLogined()) {
                String ip = request.getRemoteAddr();
                if (ip != null && CheckIp.isSpammerIp(ip)) {
                    setcookie(response, "idu", "", 0, request.getContextPath(), request.getServerName());
                    setcookie(response, "pass2", "", 0, request.getContextPath(), request.getServerName());
                    user = userService.readUser(0l);
                    request.getSession().setAttribute("user", user);
                }
            }
            return true;
        } else {
            return false;
        }
    } catch (Throwable e) {
        throw new FJWebException(e);
    }
}

From source file:org.siphon.d2js.DispatchServlet.java

@Override
protected void doDelete(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    request.setCharacterEncoding("utf-8");
    request.setAttribute("org.apache.catalina.ASYNC_SUPPORTED", true);
    AsyncContext asyncContext = request.startAsync(request, response);
    D2jsRunner d2jsRunner = this.getD2jsRunner();
    try {/*from ww w . j  a  va2  s. c  o  m*/
        d2jsRunner.run((HttpServletRequest) asyncContext.getRequest(),
                (HttpServletResponse) asyncContext.getResponse(), "delete");
    } finally {
        asyncContext.complete();
    }
}