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- /*
- @VaadinApache2LicenseForJavaFiles@
- */
- package com.vaadin.terminal.gwt.server;
-
- import java.io.BufferedWriter;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.io.OutputStreamWriter;
- import java.io.PrintWriter;
- import java.io.Serializable;
- import java.lang.reflect.InvocationTargetException;
- import java.lang.reflect.Method;
- import java.net.MalformedURLException;
- import java.security.GeneralSecurityException;
- import java.util.Enumeration;
- import java.util.Locale;
- import java.util.Map;
- import java.util.Properties;
- import java.util.logging.Logger;
-
- import javax.portlet.ActionRequest;
- import javax.portlet.ActionResponse;
- import javax.portlet.EventRequest;
- import javax.portlet.EventResponse;
- import javax.portlet.GenericPortlet;
- import javax.portlet.MimeResponse;
- import javax.portlet.PortletConfig;
- import javax.portlet.PortletContext;
- import javax.portlet.PortletException;
- import javax.portlet.PortletRequest;
- import javax.portlet.PortletResponse;
- import javax.portlet.PortletSession;
- import javax.portlet.RenderRequest;
- import javax.portlet.RenderResponse;
- import javax.portlet.ResourceRequest;
- import javax.portlet.ResourceResponse;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletRequestWrapper;
- import javax.servlet.http.HttpServletResponse;
-
- import com.liferay.portal.kernel.util.PortalClassInvoker;
- import com.liferay.portal.kernel.util.PropsUtil;
- import com.vaadin.Application;
- import com.vaadin.Application.ApplicationStartEvent;
- import com.vaadin.Application.SystemMessages;
- import com.vaadin.RootRequiresMoreInformationException;
- import com.vaadin.terminal.DeploymentConfiguration;
- import com.vaadin.terminal.Terminal;
- import com.vaadin.terminal.WrappedRequest;
- import com.vaadin.terminal.WrappedResponse;
- import com.vaadin.terminal.gwt.server.AbstractCommunicationManager.Callback;
- import com.vaadin.ui.Root;
-
- /**
- * Portlet 2.0 base class. This replaces the servlet in servlet/portlet 1.0
- * deployments and handles various portlet requests from the browser.
- *
- * TODO Document me!
- *
- * @author peholmst
- */
- public abstract class AbstractApplicationPortlet extends GenericPortlet
- implements Constants {
-
- private static final Logger logger = Logger
- .getLogger(AbstractApplicationPortlet.class.getName());
-
- private static class WrappedHttpAndPortletRequest extends
- WrappedPortletRequest {
-
- public WrappedHttpAndPortletRequest(PortletRequest request,
- HttpServletRequest originalRequest,
- DeploymentConfiguration deploymentConfiguration) {
- super(request, deploymentConfiguration);
- this.originalRequest = originalRequest;
- }
-
- private final HttpServletRequest originalRequest;
-
- @Override
- public String getParameter(String name) {
- String parameter = super.getParameter(name);
- if (parameter == null) {
- parameter = originalRequest.getParameter(name);
- }
- return parameter;
- }
-
- @Override
- public String getRemoteAddr() {
- return originalRequest.getRemoteAddr();
- }
-
- @Override
- public String getHeader(String name) {
- String header = super.getHeader(name);
- if (header == null) {
- header = originalRequest.getHeader(name);
- }
- return header;
- }
-
- @Override
- public Map<String, String[]> getParameterMap() {
- Map<String, String[]> parameterMap = super.getParameterMap();
- if (parameterMap == null) {
- parameterMap = originalRequest.getParameterMap();
- }
- return parameterMap;
- }
- }
-
- private static class WrappedGateinRequest extends
- WrappedHttpAndPortletRequest {
- public WrappedGateinRequest(PortletRequest request,
- DeploymentConfiguration deploymentConfiguration) {
- super(request, getOriginalRequest(request), deploymentConfiguration);
- }
-
- private static final HttpServletRequest getOriginalRequest(
- PortletRequest request) {
- try {
- Method getRealReq = request.getClass().getMethod(
- "getRealRequest");
- HttpServletRequestWrapper origRequest = (HttpServletRequestWrapper) getRealReq
- .invoke(request);
- return origRequest;
- } catch (Exception e) {
- throw new IllegalStateException("GateIn request not detected",
- e);
- }
- }
- }
-
- private static class WrappedLiferayRequest extends
- WrappedHttpAndPortletRequest {
-
- public WrappedLiferayRequest(PortletRequest request,
- DeploymentConfiguration deploymentConfiguration) {
- super(request, getOriginalRequest(request), deploymentConfiguration);
- }
-
- @Override
- public String getPortalProperty(String name) {
- return PropsUtil.get(name);
- }
-
- private static HttpServletRequest getOriginalRequest(
- PortletRequest request) {
- try {
- // httpRequest = PortalUtil.getHttpServletRequest(request);
- HttpServletRequest httpRequest = (HttpServletRequest) PortalClassInvoker
- .invoke("com.liferay.portal.util.PortalUtil",
- "getHttpServletRequest", request);
-
- // httpRequest =
- // PortalUtil.getOriginalServletRequest(httpRequest);
- httpRequest = (HttpServletRequest) PortalClassInvoker.invoke(
- "com.liferay.portal.util.PortalUtil",
- "getOriginalServletRequest", httpRequest);
- return httpRequest;
- } catch (Exception e) {
- throw new IllegalStateException("Liferay request not detected",
- e);
- }
- }
-
- }
-
- private static class AbstractApplicationPortletWrapper implements Callback {
-
- private final AbstractApplicationPortlet portlet;
-
- public AbstractApplicationPortletWrapper(
- AbstractApplicationPortlet portlet) {
- this.portlet = portlet;
- }
-
- public void criticalNotification(WrappedRequest request,
- WrappedResponse response, String cap, String msg,
- String details, String outOfSyncURL) throws IOException {
- PortletRequest portletRequest = WrappedPortletRequest.cast(request)
- .getPortletRequest();
- PortletResponse portletResponse = ((WrappedPortletResponse) response)
- .getPortletResponse();
- portlet.criticalNotification(portletRequest,
- (MimeResponse) portletResponse, cap, msg, details,
- outOfSyncURL);
- }
- }
-
- /**
- * This portlet parameter is used to add styles to the main element. E.g
- * "height:500px" generates a style="height:500px" to the main element.
- */
- public static final String PORTLET_PARAMETER_STYLE = "style";
-
- /**
- * This portal parameter is used to define the name of the Vaadin theme that
- * is used for all Vaadin applications in the portal.
- */
- public static final String PORTAL_PARAMETER_VAADIN_THEME = "vaadin.theme";
-
- // TODO some parts could be shared with AbstractApplicationServlet
-
- // TODO Can we close the application when the portlet is removed? Do we know
- // when the portlet is removed?
-
- private Properties applicationProperties;
-
- private boolean productionMode = false;
-
- private DeploymentConfiguration deploymentConfiguration = new DeploymentConfiguration() {
- public String getConfiguredWidgetset(WrappedRequest request) {
-
- String widgetset = getApplicationOrSystemProperty(
- PARAMETER_WIDGETSET, null);
-
- if (widgetset == null) {
- // If no widgetset defined for the application, check the portal
- // property
- widgetset = WrappedPortletRequest.cast(request)
- .getPortalProperty(PORTAL_PARAMETER_VAADIN_WIDGETSET);
- }
-
- if (widgetset == null) {
- // If no widgetset defined for the portal, use the default
- widgetset = DEFAULT_WIDGETSET;
- }
-
- return widgetset;
- }
-
- public String getConfiguredTheme(WrappedRequest request) {
-
- // is the default theme defined by the portal?
- String themeName = WrappedPortletRequest.cast(request)
- .getPortalProperty(Constants.PORTAL_PARAMETER_VAADIN_THEME);
-
- if (themeName == null) {
- // no, using the default theme defined by Vaadin
- themeName = DEFAULT_THEME_NAME;
- }
-
- return themeName;
- }
-
- public String getApplicationOrSystemProperty(String propertyName,
- String defaultValue) {
- return AbstractApplicationPortlet.this
- .getApplicationOrSystemProperty(propertyName, defaultValue);
- }
-
- public boolean isStandalone(WrappedRequest request) {
- return false;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see
- * com.vaadin.terminal.DeploymentConfiguration#getStaticFileLocation
- * (com.vaadin.terminal.WrappedRequest)
- *
- * Return the URL from where static files, e.g. the widgetset and the
- * theme, are served. In a standard configuration the VAADIN folder
- * inside the returned folder is what is used for widgetsets and themes.
- *
- * @return The location of static resources (inside which there should
- * be a VAADIN directory). Does not end with a slash (/).
- */
- public String getStaticFileLocation(WrappedRequest request) {
- String staticFileLocation = WrappedPortletRequest.cast(request)
- .getPortalProperty(
- Constants.PORTAL_PARAMETER_VAADIN_RESOURCE_PATH);
- if (staticFileLocation != null) {
- // remove trailing slash if any
- while (staticFileLocation.endsWith(".")) {
- staticFileLocation = staticFileLocation.substring(0,
- staticFileLocation.length() - 1);
- }
- return staticFileLocation;
- } else {
- // default for Liferay
- return "/html";
- }
- }
-
- public ClassLoader getClassLoader() {
- // Custom class loaders not currently supported in portlets (see
- // #8574)
- return null;
- }
- };
-
- @Override
- public void init(PortletConfig config) throws PortletException {
- super.init(config);
- applicationProperties = new Properties();
-
- // Read default parameters from the context
- final PortletContext context = config.getPortletContext();
- for (final Enumeration<String> e = context.getInitParameterNames(); e
- .hasMoreElements();) {
- final String name = e.nextElement();
- applicationProperties.setProperty(name,
- context.getInitParameter(name));
- }
-
- // Override with application settings from portlet.xml
- for (final Enumeration<String> e = config.getInitParameterNames(); e
- .hasMoreElements();) {
- final String name = e.nextElement();
- applicationProperties.setProperty(name,
- config.getInitParameter(name));
- }
-
- checkProductionMode();
- checkCrossSiteProtection();
- }
-
- private void checkCrossSiteProtection() {
- if (getApplicationOrSystemProperty(
- SERVLET_PARAMETER_DISABLE_XSRF_PROTECTION, "false").equals(
- "true")) {
- /*
- * Print an information/warning message about running with xsrf
- * protection disabled
- */
- logger.warning(WARNING_XSRF_PROTECTION_DISABLED);
- }
- }
-
- private void checkProductionMode() {
- // TODO Identical code in AbstractApplicationServlet -> refactor
- // Check if the application is in production mode.
- // We are in production mode if productionMode=true
- if (getApplicationOrSystemProperty(SERVLET_PARAMETER_PRODUCTION_MODE,
- "false").equals("true")) {
- productionMode = true;
- }
-
- if (!productionMode) {
- /* Print an information/warning message about running in debug mode */
- // TODO Maybe we need a different message for portlets?
- logger.warning(NOT_PRODUCTION_MODE_INFO);
- }
- }
-
- /**
- * Gets an application property value.
- *
- * @param parameterName
- * the Name or the parameter.
- * @return String value or null if not found
- */
- protected String getApplicationProperty(String parameterName) {
-
- String val = applicationProperties.getProperty(parameterName);
- if (val != null) {
- return val;
- }
-
- // Try lower case application properties for backward compatibility with
- // 3.0.2 and earlier
- val = applicationProperties.getProperty(parameterName.toLowerCase());
-
- return val;
- }
-
- /**
- * Gets an system property value.
- *
- * @param parameterName
- * the Name or the parameter.
- * @return String value or null if not found
- */
- protected String getSystemProperty(String parameterName) {
- String val = null;
-
- String pkgName;
- final Package pkg = getClass().getPackage();
- if (pkg != null) {
- pkgName = pkg.getName();
- } else {
- final String className = getClass().getName();
- pkgName = new String(className.toCharArray(), 0,
- className.lastIndexOf('.'));
- }
- val = System.getProperty(pkgName + "." + parameterName);
- if (val != null) {
- return val;
- }
-
- // Try lowercased system properties
- val = System.getProperty(pkgName + "." + parameterName.toLowerCase());
- return val;
- }
-
- /**
- * Gets an application or system property value.
- *
- * @param parameterName
- * the Name or the parameter.
- * @param defaultValue
- * the Default to be used.
- * @return String value or default if not found
- */
- protected String getApplicationOrSystemProperty(String parameterName,
- String defaultValue) {
-
- String val = null;
-
- // Try application properties
- val = getApplicationProperty(parameterName);
- if (val != null) {
- return val;
- }
-
- // Try system properties
- val = getSystemProperty(parameterName);
- if (val != null) {
- return val;
- }
-
- return defaultValue;
- }
-
- protected enum RequestType {
- FILE_UPLOAD, UIDL, RENDER, STATIC_FILE, APPLICATION_RESOURCE, DUMMY, EVENT, ACTION, UNKNOWN, BROWSER_DETAILS;
- }
-
- protected RequestType getRequestType(PortletRequest request) {
- if (request instanceof RenderRequest) {
- return RequestType.RENDER;
- } else if (request instanceof ResourceRequest) {
- ResourceRequest resourceRequest = (ResourceRequest) request;
- if (isUIDLRequest(resourceRequest)) {
- return RequestType.UIDL;
- } else if (isBrowserDetailsRequeset(resourceRequest)) {
- return RequestType.BROWSER_DETAILS;
- } else if (isFileUploadRequest(resourceRequest)) {
- return RequestType.FILE_UPLOAD;
- } else if (isApplicationResourceRequest(resourceRequest)) {
- return RequestType.APPLICATION_RESOURCE;
- } else if (isDummyRequest(resourceRequest)) {
- return RequestType.DUMMY;
- } else {
- return RequestType.STATIC_FILE;
- }
- } else if (request instanceof ActionRequest) {
- return RequestType.ACTION;
- } else if (request instanceof EventRequest) {
- return RequestType.EVENT;
- }
- return RequestType.UNKNOWN;
- }
-
- private boolean isBrowserDetailsRequeset(ResourceRequest request) {
- return request.getResourceID() != null
- && request.getResourceID().equals("browserDetails");
- }
-
- private boolean isApplicationResourceRequest(ResourceRequest request) {
- return request.getResourceID() != null
- && request.getResourceID().startsWith("APP");
- }
-
- private boolean isUIDLRequest(ResourceRequest request) {
- return request.getResourceID() != null
- && request.getResourceID().equals("UIDL");
- }
-
- private boolean isDummyRequest(ResourceRequest request) {
- return request.getResourceID() != null
- && request.getResourceID().equals("DUMMY");
- }
-
- private boolean isFileUploadRequest(ResourceRequest request) {
- return "UPLOAD".equals(request.getResourceID());
- }
-
- /**
- * Returns true if the servlet is running in production mode. Production
- * mode disables all debug facilities.
- *
- * @return true if in production mode, false if in debug mode
- */
- public boolean isProductionMode() {
- return productionMode;
- }
-
- protected void handleRequest(PortletRequest request,
- PortletResponse response) throws PortletException, IOException {
- RequestTimer requestTimer = new RequestTimer();
- requestTimer.start();
-
- AbstractApplicationPortletWrapper portletWrapper = new AbstractApplicationPortletWrapper(
- this);
-
- WrappedPortletRequest wrappedRequest;
-
- String portalInfo = request.getPortalContext().getPortalInfo()
- .toLowerCase();
- if (portalInfo.contains("liferay")) {
- wrappedRequest = new WrappedLiferayRequest(request,
- getDeploymentConfiguration());
- } else if (portalInfo.contains("gatein")) {
- wrappedRequest = new WrappedGateinRequest(request,
- getDeploymentConfiguration());
- } else {
- wrappedRequest = new WrappedPortletRequest(request,
- getDeploymentConfiguration());
- }
-
- WrappedPortletResponse wrappedResponse = new WrappedPortletResponse(
- response, getDeploymentConfiguration());
-
- RequestType requestType = getRequestType(request);
-
- if (requestType == RequestType.UNKNOWN) {
- handleUnknownRequest(request, response);
- } else if (requestType == RequestType.DUMMY) {
- /*
- * This dummy page is used by action responses to redirect to, in
- * order to prevent the boot strap code from being rendered into
- * strange places such as iframes.
- */
- ((ResourceResponse) response).setContentType("text/html");
- final OutputStream out = ((ResourceResponse) response)
- .getPortletOutputStream();
- final PrintWriter outWriter = new PrintWriter(new BufferedWriter(
- new OutputStreamWriter(out, "UTF-8")));
- outWriter.print("<html><body>dummy page</body></html>");
- outWriter.close();
- } else if (requestType == RequestType.STATIC_FILE) {
- serveStaticResources((ResourceRequest) request,
- (ResourceResponse) response);
- } else {
- Application application = null;
- boolean transactionStarted = false;
- boolean requestStarted = false;
-
- try {
- // TODO What about PARAM_UNLOADBURST & redirectToApplication??
-
- /* Find out which application this request is related to */
- application = findApplicationInstance(wrappedRequest,
- requestType);
- if (application == null) {
- return;
- }
- Application.setCurrentApplication(application);
-
- /*
- * Get or create an application context and an application
- * manager for the session
- */
- PortletApplicationContext2 applicationContext = getApplicationContext(request
- .getPortletSession());
- applicationContext.setResponse(response);
- applicationContext.setPortletConfig(getPortletConfig());
-
- PortletCommunicationManager applicationManager = applicationContext
- .getApplicationManager(application);
-
- /* Update browser information from request */
- applicationContext.getBrowser().updateRequestDetails(
- wrappedRequest);
-
- /*
- * Call application requestStart before Application.init() is
- * called (bypasses the limitation in TransactionListener)
- */
- if (application instanceof PortletRequestListener) {
- ((PortletRequestListener) application).onRequestStart(
- request, response);
- requestStarted = true;
- }
-
- /* Start the newly created application */
- startApplication(request, application, applicationContext);
-
- /*
- * Transaction starts. Call transaction listeners. Transaction
- * end is called in the finally block below.
- */
- applicationContext.startTransaction(application, request);
- transactionStarted = true;
-
- /* Notify listeners */
-
- // Finds the window within the application
- Root root = null;
- synchronized (application) {
- if (application.isRunning()) {
- switch (requestType) {
- case RENDER:
- case ACTION:
- // Both action requests and render requests are ok
- // without a Root as they render the initial HTML
- // and then do a second request
- try {
- root = application
- .getRootForRequest(wrappedRequest);
- } catch (RootRequiresMoreInformationException e) {
- // Ignore problem and continue without root
- }
- break;
- case BROWSER_DETAILS:
- // Should not try to find a root here as the
- // combined request details might change the root
- break;
- case FILE_UPLOAD:
- // no window
- break;
- case APPLICATION_RESOURCE:
- // use main window - should not need any window
- // root = application.getRoot();
- break;
- default:
- root = application
- .getRootForRequest(wrappedRequest);
- }
- // if window not found, not a problem - use null
- }
- }
-
- // TODO Should this happen before or after the transaction
- // starts?
- if (request instanceof RenderRequest) {
- applicationContext.firePortletRenderRequest(application,
- root, (RenderRequest) request,
- (RenderResponse) response);
- } else if (request instanceof ActionRequest) {
- applicationContext.firePortletActionRequest(application,
- root, (ActionRequest) request,
- (ActionResponse) response);
- } else if (request instanceof EventRequest) {
- applicationContext.firePortletEventRequest(application,
- root, (EventRequest) request,
- (EventResponse) response);
- } else if (request instanceof ResourceRequest) {
- applicationContext.firePortletResourceRequest(application,
- root, (ResourceRequest) request,
- (ResourceResponse) response);
- }
-
- /* Handle the request */
- if (requestType == RequestType.FILE_UPLOAD) {
- applicationManager.handleFileUpload(wrappedRequest,
- wrappedResponse);
- return;
- } else if (requestType == RequestType.BROWSER_DETAILS) {
- applicationManager.handleBrowserDetailsRequest(
- wrappedRequest, wrappedResponse, application);
- return;
- } else if (requestType == RequestType.UIDL) {
- // Handles AJAX UIDL requests
- applicationManager.handleUidlRequest(wrappedRequest,
- wrappedResponse, portletWrapper, root);
- return;
- } else {
- /*
- * Removes the application if it has stopped
- */
- if (!application.isRunning()) {
- endApplication(request, response, application);
- return;
- }
-
- handleOtherRequest(wrappedRequest, wrappedResponse,
- requestType, application, applicationContext,
- applicationManager);
- }
- } catch (final SessionExpiredException e) {
- // TODO Figure out a better way to deal with
- // SessionExpiredExceptions
- logger.finest("A user session has expired");
- } catch (final GeneralSecurityException e) {
- // TODO Figure out a better way to deal with
- // GeneralSecurityExceptions
- logger.fine("General security exception, the security key was probably incorrect.");
- } catch (final Throwable e) {
- handleServiceException(request, response, application, e);
- } finally {
- // Notifies transaction end
- try {
- if (transactionStarted) {
- ((PortletApplicationContext2) application.getContext())
- .endTransaction(application, request);
- }
- } finally {
- try {
- if (requestStarted) {
- ((PortletRequestListener) application)
- .onRequestEnd(request, response);
-
- }
- } finally {
- Root.setCurrentRoot(null);
- Application.setCurrentApplication(null);
-
- requestTimer
- .stop((AbstractWebApplicationContext) application
- .getContext());
- }
- }
- }
- }
- }
-
- private DeploymentConfiguration getDeploymentConfiguration() {
- return deploymentConfiguration;
- }
-
- private void handleUnknownRequest(PortletRequest request,
- PortletResponse response) {
- logger.warning("Unknown request type");
- }
-
- /**
- * Handle a portlet request that is not for static files, UIDL or upload.
- * Also render requests are handled here.
- *
- * This method is called after starting the application and calling portlet
- * and transaction listeners.
- *
- * @param request
- * @param response
- * @param requestType
- * @param application
- * @param applicationContext
- * @param applicationManager
- * @throws PortletException
- * @throws IOException
- * @throws MalformedURLException
- */
- private void handleOtherRequest(WrappedPortletRequest request,
- WrappedResponse response, RequestType requestType,
- Application application,
- PortletApplicationContext2 applicationContext,
- PortletCommunicationManager applicationManager)
- throws PortletException, IOException, MalformedURLException {
- if (requestType == RequestType.APPLICATION_RESOURCE
- || requestType == RequestType.RENDER) {
- if (!applicationManager.handleApplicationRequest(request, response)) {
- response.sendError(HttpServletResponse.SC_NOT_FOUND,
- "Not found");
- }
- } else if (requestType == RequestType.EVENT) {
- // nothing to do, listeners do all the work
- } else if (requestType == RequestType.ACTION) {
- // nothing to do, listeners do all the work
- } else {
- throw new IllegalStateException(
- "handleRequest() without anything to do - should never happen!");
- }
- }
-
- @Override
- public void processEvent(EventRequest request, EventResponse response)
- throws PortletException, IOException {
- handleRequest(request, response);
- }
-
- private void serveStaticResources(ResourceRequest request,
- ResourceResponse response) throws IOException, PortletException {
- final String resourceID = request.getResourceID();
- final PortletContext pc = getPortletContext();
-
- InputStream is = pc.getResourceAsStream(resourceID);
- if (is != null) {
- final String mimetype = pc.getMimeType(resourceID);
- if (mimetype != null) {
- response.setContentType(mimetype);
- }
- final OutputStream os = response.getPortletOutputStream();
- final byte buffer[] = new byte[DEFAULT_BUFFER_SIZE];
- int bytes;
- while ((bytes = is.read(buffer)) >= 0) {
- os.write(buffer, 0, bytes);
- }
- } else {
- logger.info("Requested resource [" + resourceID
- + "] could not be found");
- response.setProperty(ResourceResponse.HTTP_STATUS_CODE,
- Integer.toString(HttpServletResponse.SC_NOT_FOUND));
- }
- }
-
- @Override
- public void processAction(ActionRequest request, ActionResponse response)
- throws PortletException, IOException {
- handleRequest(request, response);
- }
-
- @Override
- protected void doDispatch(RenderRequest request, RenderResponse response)
- throws PortletException, IOException {
- try {
- // try to let super handle - it'll call methods annotated for
- // handling, the default doXYZ(), or throw if a handler for the mode
- // is not found
- super.doDispatch(request, response);
-
- } catch (PortletException e) {
- if (e.getCause() == null) {
- // No cause interpreted as 'unknown mode' - pass that trough
- // so that the application can handle
- handleRequest(request, response);
-
- } else {
- // Something else failed, pass on
- throw e;
- }
- }
- }
-
- @Override
- public void serveResource(ResourceRequest request, ResourceResponse response)
- throws PortletException, IOException {
- handleRequest(request, response);
- }
-
- boolean requestCanCreateApplication(PortletRequest request,
- RequestType requestType) {
- if (requestType == RequestType.UIDL && isRepaintAll(request)) {
- return true;
- } else if (requestType == RequestType.RENDER) {
- // In most cases the first request is a render request that renders
- // the HTML fragment. This should create an application instance.
- return true;
- } else if (requestType == RequestType.EVENT) {
- // A portlet can also be sent an event even though it has not been
- // rendered, e.g. portlet on one page sends an event to a portlet on
- // another page and then moves the user to that page.
- return true;
- }
- return false;
- }
-
- private boolean isRepaintAll(PortletRequest request) {
- return (request.getParameter(URL_PARAMETER_REPAINT_ALL) != null)
- && (request.getParameter(URL_PARAMETER_REPAINT_ALL).equals("1"));
- }
-
- private void startApplication(PortletRequest request,
- Application application, PortletApplicationContext2 context)
- throws PortletException, MalformedURLException {
- if (!application.isRunning()) {
- Locale locale = request.getLocale();
- application.setLocale(locale);
- // No application URL when running inside a portlet
- application.start(new ApplicationStartEvent(null,
- applicationProperties, context, isProductionMode()));
- }
- }
-
- private void endApplication(PortletRequest request,
- PortletResponse response, Application application)
- throws IOException {
- final PortletSession session = request.getPortletSession();
- if (session != null) {
- getApplicationContext(session).removeApplication(application);
- }
- // Do not send any redirects when running inside a portlet.
- }
-
- private Application findApplicationInstance(
- WrappedPortletRequest wrappedRequest, RequestType requestType)
- throws PortletException, SessionExpiredException,
- MalformedURLException {
- PortletRequest request = wrappedRequest.getPortletRequest();
-
- boolean requestCanCreateApplication = requestCanCreateApplication(
- request, requestType);
-
- /* Find an existing application for this request. */
- Application application = getExistingApplication(request,
- requestCanCreateApplication);
-
- if (application != null) {
- /*
- * There is an existing application. We can use this as long as the
- * user not specifically requested to close or restart it.
- */
-
- final boolean restartApplication = (wrappedRequest
- .getParameter(URL_PARAMETER_RESTART_APPLICATION) != null);
- final boolean closeApplication = (wrappedRequest
- .getParameter(URL_PARAMETER_CLOSE_APPLICATION) != null);
-
- if (restartApplication) {
- closeApplication(application, request.getPortletSession(false));
- return createApplication(request);
- } else if (closeApplication) {
- closeApplication(application, request.getPortletSession(false));
- return null;
- } else {
- return application;
- }
- }
-
- // No existing application was found
-
- if (requestCanCreateApplication) {
- return createApplication(request);
- } else {
- throw new SessionExpiredException();
- }
- }
-
- private void closeApplication(Application application,
- PortletSession session) {
- if (application == null) {
- return;
- }
-
- application.close();
- if (session != null) {
- PortletApplicationContext2 context = getApplicationContext(session);
- context.removeApplication(application);
- }
- }
-
- private Application createApplication(PortletRequest request)
- throws PortletException, MalformedURLException {
- Application newApplication = getNewApplication(request);
- final PortletApplicationContext2 context = getApplicationContext(request
- .getPortletSession());
- context.addApplication(newApplication, request.getWindowID());
- return newApplication;
- }
-
- private Application getExistingApplication(PortletRequest request,
- boolean allowSessionCreation) throws MalformedURLException,
- SessionExpiredException {
-
- final PortletSession session = request
- .getPortletSession(allowSessionCreation);
-
- if (session == null) {
- throw new SessionExpiredException();
- }
-
- PortletApplicationContext2 context = getApplicationContext(session);
- Application application = context.getApplicationForWindowId(request
- .getWindowID());
- if (application == null) {
- return null;
- }
- if (application.isRunning()) {
- return application;
- }
- // application found but not running
- context.removeApplication(application);
-
- return null;
- }
-
- protected abstract Class<? extends Application> getApplicationClass()
- throws ClassNotFoundException;
-
- protected Application getNewApplication(PortletRequest request)
- throws PortletException {
- try {
- final Application application = getApplicationClass().newInstance();
- application.setRootPreserved(true);
- return application;
- } catch (final IllegalAccessException e) {
- throw new PortletException("getNewApplication failed", e);
- } catch (final InstantiationException e) {
- throw new PortletException("getNewApplication failed", e);
- } catch (final ClassNotFoundException e) {
- throw new PortletException("getNewApplication failed", e);
- }
- }
-
- protected ClassLoader getClassLoader() throws PortletException {
- // TODO Add support for custom class loader
- return getClass().getClassLoader();
- }
-
- /**
- * Get system messages from the current application class
- *
- * @return
- */
- protected SystemMessages getSystemMessages() {
- try {
- Class<? extends Application> appCls = getApplicationClass();
- Method m = appCls.getMethod("getSystemMessages", (Class[]) null);
- return (Application.SystemMessages) m.invoke(null, (Object[]) null);
- } catch (ClassNotFoundException e) {
- // This should never happen
- throw new SystemMessageException(e);
- } catch (SecurityException e) {
- throw new SystemMessageException(
- "Application.getSystemMessage() should be static public", e);
- } catch (NoSuchMethodException e) {
- // This is completely ok and should be silently ignored
- } catch (IllegalArgumentException e) {
- // This should never happen
- throw new SystemMessageException(e);
- } catch (IllegalAccessException e) {
- throw new SystemMessageException(
- "Application.getSystemMessage() should be static public", e);
- } catch (InvocationTargetException e) {
- // This should never happen
- throw new SystemMessageException(e);
- }
- return Application.getSystemMessages();
- }
-
- private void handleServiceException(PortletRequest request,
- PortletResponse response, Application application, Throwable e)
- throws IOException, PortletException {
- // TODO Check that this error handler is working when running inside a
- // portlet
-
- // if this was an UIDL request, response UIDL back to client
- if (getRequestType(request) == RequestType.UIDL) {
- Application.SystemMessages ci = getSystemMessages();
- criticalNotification(request, (ResourceResponse) response,
- ci.getInternalErrorCaption(), ci.getInternalErrorMessage(),
- null, ci.getInternalErrorURL());
- if (application != null) {
- application.getErrorHandler()
- .terminalError(new RequestError(e));
- } else {
- throw new PortletException(e);
- }
- } else {
- // Re-throw other exceptions
- throw new PortletException(e);
- }
-
- }
-
- @SuppressWarnings("serial")
- public class RequestError implements Terminal.ErrorEvent, Serializable {
-
- private final Throwable throwable;
-
- public RequestError(Throwable throwable) {
- this.throwable = throwable;
- }
-
- public Throwable getThrowable() {
- return throwable;
- }
-
- }
-
- /**
- * Send notification to client's application. Used to notify client of
- * critical errors and session expiration due to long inactivity. Server has
- * no knowledge of what application client refers to.
- *
- * @param request
- * the Portlet request instance.
- * @param response
- * the Portlet response to write to.
- * @param caption
- * for the notification
- * @param message
- * for the notification
- * @param details
- * a detail message to show in addition to the passed message.
- * Currently shown directly but could be hidden behind a details
- * drop down.
- * @param url
- * url to load after message, null for current page
- * @throws IOException
- * if the writing failed due to input/output error.
- */
- void criticalNotification(PortletRequest request, MimeResponse response,
- String caption, String message, String details, String url)
- throws IOException {
-
- // clients JS app is still running, but server application either
- // no longer exists or it might fail to perform reasonably.
- // send a notification to client's application and link how
- // to "restart" application.
-
- if (caption != null) {
- caption = "\"" + caption + "\"";
- }
- if (details != null) {
- if (message == null) {
- message = details;
- } else {
- message += "<br/><br/>" + details;
- }
- }
- if (message != null) {
- message = "\"" + message + "\"";
- }
- if (url != null) {
- url = "\"" + url + "\"";
- }
-
- // Set the response type
- response.setContentType("application/json; charset=UTF-8");
- final OutputStream out = response.getPortletOutputStream();
- final PrintWriter outWriter = new PrintWriter(new BufferedWriter(
- new OutputStreamWriter(out, "UTF-8")));
- outWriter.print("for(;;);[{\"changes\":[], \"meta\" : {"
- + "\"appError\": {" + "\"caption\":" + caption + ","
- + "\"message\" : " + message + "," + "\"url\" : " + url
- + "}}, \"resources\": {}, \"locales\":[]}]");
- outWriter.close();
- }
-
- /**
- *
- * Gets the application context for a PortletSession. If no context is
- * currently stored in a session a new context is created and stored in the
- * session.
- *
- * @param portletSession
- * the portlet session.
- * @return the application context for the session.
- */
- protected PortletApplicationContext2 getApplicationContext(
- PortletSession portletSession) {
- return PortletApplicationContext2.getApplicationContext(portletSession);
- }
-
- }
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