Example usage for javax.servlet.http HttpSession getAttribute

Introduction

In this page you can find the example usage for javax.servlet.http HttpSession getAttribute.

Prototype

public Object getAttribute(String name);

Source Link

Document

Returns the object bound with the specified name in this session, or null if no object is bound under the name.

Usage

From source file:org.jruby.rack.mock.WebUtils.java

/**
 * Get the specified session attribute, creating and setting a new attribute if
 * no existing found. The given class needs to have a public no-arg constructor.
 * Useful for on-demand state objects in a web tier, like shopping carts.
 * @param session current HTTP session/*from ww  w.  jav  a 2  s . com*/
 * @param name the name of the session attribute
 * @param clazz the class to instantiate for a new attribute
 * @return the value of the session attribute, newly created if not found
 * @throws IllegalArgumentException if the session attribute could not be instantiated
 */
public static Object getOrCreateSessionAttribute(HttpSession session, String name, Class<?> clazz)
        throws IllegalArgumentException {

    Assert.notNull(session, "Session must not be null");
    Object sessionObject = session.getAttribute(name);
    if (sessionObject == null) {
        try {
            sessionObject = clazz.newInstance();
        } catch (InstantiationException ex) {
            throw new IllegalArgumentException("Could not instantiate class [" + clazz.getName()
                    + "] for session attribute '" + name + "': " + ex.getMessage());
        } catch (IllegalAccessException ex) {
            throw new IllegalArgumentException("Could not access default constructor of class ["
                    + clazz.getName() + "] for session attribute '" + name + "': " + ex.getMessage());
        }
        session.setAttribute(name, sessionObject);
    }
    return sessionObject;
}

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From source file:net.testdriven.psiprobe.tools.ApplicationUtils.java

public static ApplicationSession getApplicationSession(Session session, boolean calcSize,
        boolean addAttributes) {
    ApplicationSession sbean = null;/* w w  w  .j a  v a  2  s  . c o m*/
    if (session != null && session.isValid()) {
        sbean = new ApplicationSession();

        sbean.setId(session.getId());
        sbean.setCreationTime(new Date(session.getCreationTime()));
        sbean.setLastAccessTime(new Date(session.getLastAccessedTime()));
        sbean.setMaxIdleTime(session.getMaxInactiveInterval() * 1000);
        sbean.setManagerType(session.getManager().getClass().getName());
        sbean.setInfo(session.getInfo());

        boolean sessionSerializable = true;
        int attributeCount = 0;
        long size = 0;

        HttpSession httpSession = session.getSession();
        Set processedObjects = new HashSet(1000);

        //Exclude references back to the session itself
        processedObjects.add(httpSession);
        try {
            for (Enumeration e = httpSession.getAttributeNames(); e.hasMoreElements();) {
                String name = (String) e.nextElement();
                Object o = httpSession.getAttribute(name);
                sessionSerializable = sessionSerializable && o instanceof Serializable;

                long oSize = 0;
                if (calcSize) {
                    try {
                        oSize += Instruments.sizeOf(name, processedObjects);
                        oSize += Instruments.sizeOf(o, processedObjects);
                    } catch (Throwable th) {
                        logger.error("Cannot estimate size of attribute \"" + name + "\"", th);
                        //
                        // make sure we always re-throw ThreadDeath
                        //
                        if (e instanceof ThreadDeath) {
                            throw (ThreadDeath) e;
                        }
                    }
                }

                if (addAttributes) {
                    Attribute saBean = new Attribute();
                    saBean.setName(name);
                    saBean.setType(ClassUtils.getQualifiedName(o.getClass()));
                    saBean.setValue(o);
                    saBean.setSize(oSize);
                    saBean.setSerializable(o instanceof Serializable);
                    sbean.addAttribute(saBean);
                }
                attributeCount++;
                size += oSize;
            }
            String lastAccessedIP = (String) httpSession.getAttribute(ApplicationSession.LAST_ACCESSED_BY_IP);
            if (lastAccessedIP != null) {
                sbean.setLastAccessedIP(lastAccessedIP);
            }
            try {
                sbean.setLastAccessedIPLocale(
                        InetAddressLocator.getLocale(InetAddress.getByName(lastAccessedIP).getAddress()));
            } catch (Throwable e) {
                logger.error("Cannot determine Locale of " + lastAccessedIP);
                //
                // make sure we always re-throw ThreadDeath
                //
                if (e instanceof ThreadDeath) {
                    throw (ThreadDeath) e;
                }
            }

        } catch (IllegalStateException e) {
            logger.info("Session appears to be invalidated, ignore");
        }

        sbean.setObjectCount(attributeCount);
        sbean.setSize(size);
        sbean.setSerializable(sessionSerializable);
    }

    return sbean;
}

---

From source file:ece356.UserDBAO.java

public static boolean isLoggedIn(HttpServletRequest request) {
    HttpSession session = request.getSession();
    UserData loggedInUser = (UserData) session.getAttribute("userData");
    return loggedInUser != null;
}

---

From source file:grails.plugin.springsecurity.SpringSecurityUtils.java

/**
 * Check if the request was triggered by an Ajax call.
 * @param request the request//from w  ww  . ja va2  s .  c  om
 * @return <code>true</code> if Ajax
 */
public static boolean isAjax(final HttpServletRequest request) {

    String ajaxHeaderName = (String) ReflectionUtils.getConfigProperty("ajaxHeader");

    // check the current request's headers
    if ("XMLHttpRequest".equals(request.getHeader(ajaxHeaderName))) {
        return true;
    }

    Object ajaxCheckClosure = ReflectionUtils.getConfigProperty("ajaxCheckClosure");
    if (ajaxCheckClosure instanceof Closure) {
        Object result = ((Closure<?>) ajaxCheckClosure).call(request);
        if (result instanceof Boolean && ((Boolean) result)) {
            return true;
        }
    }

    // look for an ajax=true parameter
    if ("true".equals(request.getParameter("ajax"))) {
        return true;
    }

    // process multipart requests
    MultipartHttpServletRequest multipart = ((MultipartHttpServletRequest) request
            .getAttribute("org.springframework.web.multipart.MultipartHttpServletRequest"));
    if (multipart != null && "true".equals(multipart.getParameter("ajax"))) {
        return true;
    }

    // check the SavedRequest's headers
    HttpSession httpSession = request.getSession(false);
    if (httpSession != null) {
        SavedRequest savedRequest = (SavedRequest) httpSession.getAttribute(SAVED_REQUEST);
        if (savedRequest != null) {
            return !savedRequest.getHeaderValues(ajaxHeaderName).isEmpty();
        }
    }

    return false;
}

---

From source file:com.exilant.exility.core.HttpRequestHandler.java

/**
 * populate data with global/session variables, if this is an authenticated
 * session. Caller can have the CommonFieldNames.CSRF_HEADER token either in
 * the header, or a field already extracted into inData
 * //from w  w w .ja  va  2s  .com
 * @param req
 * @param inData
 *            into which session fields need to be extracted
 * @return true if this is an authenticated session, false otherwise
 */
public static boolean extractSessionFields(HttpServletRequest req, ServiceData inData) {
    String token = req.getHeader(CommonFieldNames.CSRF_HEADER);
    if (token == null) {
        token = inData.getValue(CommonFieldNames.CSRF_HEADER);
    }

    if (token == null || token.length() == 0) {
        return false;
    }

    HttpSession session = req.getSession(false);
    if (session == null) {
        return false;
    }

    Object obj = session.getAttribute(token);
    if (obj == null) {
        return false;
    }

    if (obj instanceof SessionData == false) {
        return false;
    }
    ((SessionData) obj).extractAll(inData);
    return true;
}

---

From source file:grails.plugin.springsecurity.SpringSecurityUtils.java

/**
 * Execute a closure with the current authentication. Assumes that there's an authentication in the
 * http session and that the closure is running in a separate thread from the web request, so the
 * context and authentication aren't available to the standard ThreadLocal.
 *
 * @param closure the code to run//  ww w. j a v  a 2  s .  c o m
 * @return the closure's return value
 */
public static Object doWithAuth(@SuppressWarnings("rawtypes") final Closure closure) {
    boolean set = false;
    if (SecurityContextHolder.getContext().getAuthentication() == null
            && SecurityRequestHolder.getRequest() != null) {
        HttpSession httpSession = SecurityRequestHolder.getRequest().getSession(false);
        SecurityContext securityContext = null;
        if (httpSession != null) {
            securityContext = (SecurityContext) httpSession
                    .getAttribute(HttpSessionSecurityContextRepository.SPRING_SECURITY_CONTEXT_KEY);
            if (securityContext != null) {
                SecurityContextHolder.setContext(securityContext);
                set = true;
            }
        }
    }

    try {
        return closure.call();
    } finally {
        if (set) {
            SecurityContextHolder.clearContext();
        }
    }
}

---

From source file:com.web.panacea.service.SessionServiceImpl.java

public String getRole(HttpSession session) {
    return session.getAttribute("role").toString();
}

---

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

/**
 * Check if attribute is carried on {@link HttpServletRequest}, {@link HttpSession} or {@link ServletContext}
 * instances associated with current request being processed.
 *
 * @param name name of the attribute./*from   w ww .ja va 2s  . c  o m*/
 * @return true if the attribute is contained in one of the instances {@link HttpServletRequest},
 * {@link HttpSession} or {@link ServletContext}, false otherwise.
 */
public static boolean containsAttribute(String name) {
    if (name != null) {
        HttpServletRequest request = getRequest();
        if (request != null && request.getAttribute(name) != null) {
            return true;
        }

        HttpSession session = getSession();
        if (session != null) {
            synchronized (session) {
                if (session.getAttribute(name) != null) {
                    return true;
                }
            }
        }

        return getApplication().getAttribute(name) != null;
    }
    return false;
}

---

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

/**
 * Returns the attribute carried on {@link HttpServletRequest}, {@link HttpSession} or {@link ServletContext}
 * instances associated with current request being processed.
 *
 * @param name name of the attribute./* w w w.ja v a  2s . c  om*/
 * @return the {@link Object} mapped by attribute name on the current request.
 */
public static Object getAttribute(String name) {
    if (name != null) {
        HttpServletRequest request = getRequest();
        if (request != null && request.getAttribute(name) != null) {
            return request.getAttribute(name);
        }

        HttpSession session = getSession();
        if (session != null) {
            synchronized (session) {
                if (session.getAttribute(name) != null) {
                    return session.getAttribute(name);
                }
            }
        }

        ServletContext application = getApplication();
        if (application.getAttribute(name) != null) {
            return application.getAttribute(name);
        }
    }
    return null;
}

---

From source file:controller.AcountController.java

@RequestMapping(method = RequestMethod.GET)
public String showAccount(HttpSession session) {
    if (session.getAttribute("username") != null) {
        return "account";
    }//  w  w  w.j a  v  a2  s.c  om
    return "redirect:user/login";
}

---

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