7:54 a.m.
Here some code to get and use the HttpServletRequest, HttpServletResponse, HttpSession,
read and write Cookies from a PortletRequest (in processAction method or doView).
This is not compliant with JSR-168. And is "as is", and may not work.
| import java.util.logging.Logger;
|
| import javax.portlet.PortletRequest;
| import javax.servlet.http.Cookie;
| import javax.servlet.http.HttpServletRequest;
| import javax.servlet.http.HttpServletResponse;
|
| import org.jboss.portal.portlet.aspects.portlet.ContextDispatcherInterceptor;
| import org.jboss.portal.portlet.impl.spi.AbstractInvocationContext;
| import org.jboss.portal.portlet.invocation.PortletInvocation;
| import org.jboss.portal.portlet.spi.InvocationContext;
|
| /**
| * A class to help manage the HttpServletRequest and Session of the portal.
| *
| */
| public class HttpServletRequestHelper {
| private static final Logger log = Logger
| .getLogger(HttpServletRequestHelper.class.getName());
|
|
| /***************************************************************************
| * For getting and using the HttpServletRequest and HttpServletResponse.
| **************************************************************************/
| /**
| * This method retieve the {@link HttpServletRequest} from the
| * {@link PortletRequest}. It call first the
| * {@link #getAbstractInvocationContext(PortletRequest, String)} to get the
| * {@link AbstractInvocationContext}, then retrive the HttpServletRequest
| * from it.
| *
| * <p>
| * See the code for details of how it retrieves it.
| * </p>
| *
| * @param request
| * The PortletRequest.
| * @param msgLogPrefix
| * The message prefix for all log, to tell from where this
| * helping method was called.
| * @return
| */
| public static final HttpServletRequest getHttpServletRequest(
| PortletRequest request, String msgLogPrefix) {
| // Try to cast the context of invocation to an AbstractInvocationContext
| AbstractInvocationContext abstractInvCtxt = getAbstractInvocationContext(
| request, msgLogPrefix);
| HttpServletRequest httpServletRequest = null;
| if (abstractInvCtxt != null) {
| // The AbstractInvocationContext exists : try to retrieve the client
| // httpServletRequest.
| httpServletRequest = abstractInvCtxt.getClientRequest();
| if (httpServletRequest == null) {
| log.warning(msgLogPrefix + " The HttpServletRequest is null !");
| }
| } else {
| log.warning(msgLogPrefix
| + " The AbstractInvocationContext is null !");
| }
| return httpServletRequest;
| }
|
| /**
| * This method retieve the {@link HttpServletRequest} from the
| * {@link PortletRequest}. It call first the
| * {@link #getAbstractInvocationContext(PortletRequest, String)} to get the
| * {@link AbstractInvocationContext}, then retrive the HttpServletResponse
| * from it.
| *
| * <p>
| * See the code for details of how it retrieves it.
| * </p>
| *
| * @param request
| * The PortletRequest.
| * @param msgLogPrefix
| * The message prefix for all log, to tell from where this
| * helping method was called.
| * @return
| */
| public static final HttpServletResponse getHttpServletResponse(
| PortletRequest request, String msgLogPrefix) {
| // Try to cast the context of invocation to an AbstractInvocationContext
| AbstractInvocationContext abstractInvCtxt = getAbstractInvocationContext(
| request, msgLogPrefix);
| HttpServletResponse httpServletResponse = null;
| if (abstractInvCtxt != null) {
| // The AbstractInvocationContext exists : try to retrieve the client
| // httpServletRequest.
| httpServletResponse = abstractInvCtxt.getClientResponse();
| if (httpServletResponse == null) {
| log
| .warning(msgLogPrefix
| + " The HttpServletResponse is null !");
| }
| } else {
| log.warning(msgLogPrefix
| + " The AbstractInvocationContext is null !");
| }
| return httpServletResponse;
| }
|
| /**
| * This method retieve the {@link AbstractInvocationContext} from the
| * {@link PortletRequest}. The {@link AbstractInvocationContext} is used to
| * get the ClientRequest etc...
| * <p>
| * See the code for details of how it retrieves it.
| * </p>
| *
| * @param request
| * The PortletRequest.
| * @param msgLogPrefix
| * The message prefix for all log, to tell from where this
| * helping method was called.
| * @return
| */
| public static final AbstractInvocationContext getAbstractInvocationContext(
| PortletRequest request, String msgLogPrefix) {
| PortletInvocation portletInvocation = (PortletInvocation) request
| .getAttribute(ContextDispatcherInterceptor.REQ_ATT_COMPONENT_INVOCATION);
| // return portletInvocation.getDispatchedRequest();
|
| // Get the context of the invocation
| InvocationContext invocationContext = portletInvocation.getContext();
|
| // Try to cast the context of invocation to an AbstractInvocationContext
| AbstractInvocationContext abstractInvCtxt = null;
| if (invocationContext != null) {
| if (invocationContext instanceof AbstractInvocationContext) {
| abstractInvCtxt = (AbstractInvocationContext) invocationContext;
| } else {
| log
| .warning(msgLogPrefix
| + " The InvocationContext is not of instance of AbstractInvocationContext
!");
| log.warning(msgLogPrefix + " The InvocationContext is : "
| + invocationContext + " // "
| + invocationContext.getClass().getName() + " // "
| + invocationContext.toString());
| }
|
| } else {
| log.warning(msgLogPrefix + " The invocationContext is null !");
| }
| return abstractInvCtxt;
| }
| /***************************************************************************
| * End of For getting and using the HttpServletRequest and
| * HttpServletResponse.
| **************************************************************************/
| /***************************************************************************
| * Set and retrieve a Cookie
| **************************************************************************/
| /**
| * Return the cookie with name cookieName, from the
| * {@link HttpServletRequest}, or null if not found. Does not check for the path
| *
| * @param httpRequest
| * @param cookieName
| * The name of the cookie to look for
| * @param msgLogPrefix
| * The message prefix for all log, to tell from where this
| * helping method was called.
| * @return The cookie, or null if not found.
| */
| public static Cookie getCookie(HttpServletRequest httpRequest,
| String cookieName, String cookiePath, String msgLogPrefix) {
| Cookie cookieRet = null;
| Cookie[] cookieTab = httpRequest.getCookies();
|
| // log.warning(msgLogPrefix + " The list of cookies :"
| // + msgCookieListAsString(cookieTab));
|
| if (cookieTab != null) {
| for (int i = 0; i < cookieTab.length; i++) {
| if (cookieTab.getName().compareTo(cookieName) == 0) {
| // log.warning(msgLogPrefix + " i = " + i
| // + " same name cookieTab.getName()="
| // + cookieTab.getName());
| // log.warning(msgLogPrefix + " i = " + i
| // + " PATH cookieTab.getPath()="
| // + cookieTab.getPath());
|
| cookieRet = cookieTab;
| break;
| }
| }
| // } else {
| // log
| // .warning(msgLogPrefix
| // + " The List of cookies is null. From HttpServletRequest :
| // LocalAddr="
| // + httpRequest.getLocalAddr() + ", and LocalName="
| // + httpRequest.getLocalName() + ", and user="
| // + httpRequest.getRemoteUser());
| }
| return cookieRet;
| }
|
| /**
| * Store a cookie.
| *
| * @param httpResponse
| * @param cookieName
| * @param cookiePath
| * @param cookieValue
| * @param maxAgeSeconds
| * The cookie will expire after that many seconds have passed.
| * See {@link Cookie#setMaxAge(int)}. One year = 60*60*24*365 =
| * 31536000 sec.
| * @param msgLogPrefix
| */
| public static void storeCookie(HttpServletResponse httpResponse,
| String cookieName, String cookiePath, String cookieValue,
| int maxAgeSeconds, String msgLogPrefix) {
| Cookie cookie = new Cookie(cookieName, cookieValue);
| cookie.setMaxAge(maxAgeSeconds); // one year = 60*60*24*365
| // log.warning(msgLogPrefix + " cookie.setMaxAge = " +
| // cookie.getMaxAge()
| // + ", and LocalName=" + "");
|
| cookie.setPath(cookiePath);
|
| httpResponse.addCookie(cookie);
| }
|
| /**
| * Return the log message of a cookie : name, path, value, maxAge.
| *
| * @param cookie
| * @return
| */
| public static String msgCookieAsString(Cookie cookie) {
| String msgRet = "Cookie[" + cookie.getName() + "], path=["
| + cookie.getPath() + "]" + ", value=" + cookie.getValue()
| + ", maxAge=" + cookie.getMaxAge() + ", domain="
| + cookie.getDomain() + "";
| return msgRet;
| }
|
| /**
| * Return the log message of the list of cookie.
| *
| * @param cookieTab
| * @return
| */
| public static String msgCookieListAsString(Cookie[] cookieTab) {
| String msgRet = null;
| if (cookieTab == null) {
| msgRet = "Cookie list is null !";
| return msgRet;
| } else {
| msgRet = "Cookie list size=" + cookieTab.length;
| }
| for (int i = 0; i < cookieTab.length; i++) {
| msgRet = msgRet + "\ni=" + i + ", "
| + msgCookieAsString(cookieTab);
| }
| return msgRet;
| }
|
| /***************************************************************************
| * End of Set and retrieve a Cookie
| **************************************************************************/
|
| }
|
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