[undertow-dev] ServletContext.getResource() and FileNotFound

[Davide Ungari]

Hi,
I'm using version 1.1.0.CR8.

--
Davide

On Wed, Nov 12, 2014 at 8:47 AM, Davide Ungari <ungarida at gmail.com> wrote:

> Hi everybody,
> I'm trying to migrate my webapp from Jetty to Undertow.
>
> The stack is composed by Undertow Guice and Struts2.
>
> I developed the following class to configure undertow:
>
> package com.billdrawer.website.server;
>>
>> import io.undertow.Undertow;
>> import io.undertow.predicate.Predicates;
>> import io.undertow.server.HandlerWrapper;
>> import io.undertow.server.HttpHandler;
>> import io.undertow.server.HttpServerExchange;
>> import io.undertow.server.handlers.PathHandler;
>> import io.undertow.server.handlers.PredicateHandler;
>> import io.undertow.server.handlers.resource.ResourceHandler;
>> import io.undertow.servlet.api.ConfidentialPortManager;
>> import io.undertow.servlet.api.Deployment;
>> import io.undertow.servlet.api.DeploymentInfo;
>> import io.undertow.servlet.api.DeploymentManager;
>> import io.undertow.servlet.api.FilterInfo;
>> import io.undertow.servlet.api.ListenerInfo;
>> import io.undertow.servlet.api.LoginConfig;
>> import io.undertow.servlet.api.SecurityConstraint;
>> import io.undertow.servlet.api.ServletContainer;
>> import io.undertow.servlet.api.WebResourceCollection;
>>
>> import java.net.URL;
>> import java.nio.file.Files;
>> import java.nio.file.Paths;
>> import java.util.EnumSet;
>>
>> import javax.inject.Inject;
>> import javax.inject.Named;
>> import javax.servlet.DispatcherType;
>> import javax.servlet.ServletContext;
>> import javax.servlet.ServletException;
>>
>> import org.apache.log4j.Logger;
>> import org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter;
>> import org.keycloak.adapters.AdapterConstants;
>> import org.keycloak.adapters.undertow.KeycloakServletExtension;
>>
>> import com.billdrawer.website.common.Config;
>> import com.billdrawer.website.listener.WebsiteServletContextListener;
>> import com.google.inject.servlet.GuiceFilter;
>>
>> public class UndertowServer implements Server {
>>     private Logger _logger = Logger.getLogger(UndertowServer.class);
>>     private Undertow _server;
>>     private DeploymentManager _manager;
>>     private int _port;
>>     private String _host;
>>
>>     @Inject
>>     public UndertowServer(@Named(Config.STAGE) String stage, @Named(Config.SERVER_HOST) String host, @Named(Config.SERVER_PORT) int port,
>>             @Named(Config.SERVER_TIMEOUT) int timeout) {
>>         _port = port;
>>         _host = host;
>>
>>         DeploymentInfo deploymentInfo = getDeploymentInfo(stage);
>>
>>         ServletContainer _container = ServletContainer.Factory.newInstance();
>>         _manager = _container.addDeployment(deploymentInfo);
>>         _manager.deploy();
>>
>>         Deployment deployment = _manager.getDeployment();
>>
>>         KeycloakServletExtension keycloak = new KeycloakServletExtension();
>>         deploymentInfo.addServletExtension(keycloak);
>>         deploymentInfo.addInitParameter(AdapterConstants.AUTH_DATA_PARAM_NAME, getKeyloakJson());
>>         keycloak.handleDeployment(deploymentInfo, _manager.getDeployment().getServletContext());
>>
>>         final ServletContext servletContext = deployment.getServletContext();
>>         _logger.debug("Context initialized:"+servletContext.getContextPath());
>>     }
>>
>>     protected String getKeyloakJson() {
>>         String keycloak = "";
>>         URL url = getClassLoader().getResource("keycloak.json");
>>         if (url != null) {
>>             try {
>>                 byte[] encoded = Files.readAllBytes(Paths.get(url.toURI()));
>>                 keycloak = new String(encoded, "utf-8");
>>             } catch (Exception e) {
>>                 _logger.error("Can't read keycloak.json", e);
>>             }
>>         }
>>         return keycloak;
>>     }
>>
>>     protected DeploymentInfo getDeploymentInfo(String stage) {
>>         final DeploymentInfo deploymentInfo = new DeploymentInfo();
>>         deploymentInfo.setClassLoader(getClassLoader());
>>         deploymentInfo.setContextPath("/");
>>         deploymentInfo.setDefaultEncoding("UTF-8");
>>         deploymentInfo.setDeploymentName("website.war");
>>         deploymentInfo.setDisplayName("WebsiteServer");
>>         deploymentInfo.setUrlEncoding("UTF-8");
>>
>>         deploymentInfo.addListener(new ListenerInfo(WebsiteServletContextListener.class));
>>
>>         FilterInfo guiceFilter = new FilterInfo("GuiceFilter", GuiceFilter.class);
>>         deploymentInfo.addFilter(guiceFilter);
>>         for (DispatcherType dispatcher : EnumSet.allOf(DispatcherType.class)) {
>>             deploymentInfo.addFilterUrlMapping(guiceFilter.getName(), "/*", dispatcher);
>>         }
>>
>>         FilterInfo strutsPrepareAndExecuteFilter = new FilterInfo("StrutsFilter", StrutsPrepareAndExecuteFilter.class);
>>         deploymentInfo.addFilter(strutsPrepareAndExecuteFilter);
>>         for (DispatcherType dispatcher : EnumSet.allOf(DispatcherType.class)) {
>>             deploymentInfo.addFilterUrlMapping(strutsPrepareAndExecuteFilter.getName(), "/*", dispatcher);
>>         }
>>
>>         deploymentInfo.addInitialHandlerChainWrapper(new HandlerWrapper() {
>>             @Override
>>             public HttpHandler wrap(final HttpHandler handler) {
>>                 final ResourceHandler resourceHandler = new ResourceHandler(deploymentInfo.getResourceManager());
>>                 PredicateHandler predicateHandler = new PredicateHandler(Predicates.suffixes(".css",".html",".js"),resourceHandler, handler);
>>                 return predicateHandler;
>>             }
>>         });
>>
>>         configureSecurity(deploymentInfo);
>>
>>         return deploymentInfo;
>>     }
>>
>>     protected void configureSecurity(DeploymentInfo deploymentInfo) {
>>         deploymentInfo.setLoginConfig(new LoginConfig("KEYCLOAK", "billdrawer"));
>>         deploymentInfo.setConfidentialPortManager(new ConfidentialPortManager() {
>>             @Override
>>             public int getConfidentialPort(HttpServerExchange exchange) {
>>                 return _port;
>>             }
>>         });
>>         SecurityConstraint securityConstraint = new SecurityConstraint();
>>         WebResourceCollection webResourceCollection = new WebResourceCollection();
>>         webResourceCollection.addUrlPattern("/dashboard/*");
>>         securityConstraint.addWebResourceCollection(webResourceCollection);
>>         securityConstraint.addRoleAllowed("user");
>>         deploymentInfo.addSecurityConstraint(securityConstraint);
>>     }
>>
>>     protected ClassLoader getClassLoader() {
>>         return getClass().getClassLoader();
>>     }
>>
>>     public void start() {
>>         _logger.debug("starting...");
>>         try {
>>             Undertow.Builder builder = Undertow.builder();
>>             builder.addHttpListener(_port, _host);
>>
>>             final PathHandler rootHandler = new PathHandler();
>>             rootHandler.addPrefixPath(_manager.getDeployment().getDeploymentInfo().getContextPath(), _manager.start());
>>
>>             builder.setHandler(rootHandler);
>>             _server = builder.build();
>>             _server.start();
>>         } catch (ServletException e) {
>>             _logger.error("Unexpected exception", e);
>>         }
>>         _logger.info("###START###");
>>     }
>>
>>     public void stop() {
>>         _logger.debug("stopping...");
>>         try {
>>             _manager.stop();
>>             _server.stop();
>>         } catch (ServletException e) {
>>             _logger.error("Unexpected exception", e);
>>         }
>>         _logger.info("###STOP###");
>>     }
>> }
>>
>> Everything is working until I do not try to load resources from context.
> I need some help before rollback to Jetty :(
>
> --
> Davide
>
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