package io.undertow.websockets.jsr;
import io.undertow.servlet.ServletExtension;
import io.undertow.servlet.Servlets;
import io.undertow.servlet.api.DeploymentInfo;
import io.undertow.servlet.api.ThreadSetupAction;
import io.undertow.servlet.core.CompositeThreadSetupAction;
import io.undertow.servlet.core.ContextClassLoaderSetupAction;
import io.undertow.servlet.spec.ServletContextImpl;
import javax.servlet.DispatcherType;
import javax.servlet.FilterRegistration;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.websocket.DeploymentException;
import javax.websocket.server.ServerContainer;
import javax.websocket.server.ServerEndpointConfig;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;
/**
* @author Stuart Douglas
*/
public class Bootstrap implements ServletExtension {
public static final String FILTER_NAME = "Undertow Web Socket Filter";
@Override
public void handleDeployment(DeploymentInfo deploymentInfo, ServletContext servletContext) {
WebSocketDeploymentInfo info = (WebSocketDeploymentInfo) deploymentInfo.getServletContextAttributes().get(WebSocketDeploymentInfo.ATTRIBUTE_NAME);
if (info == null) {
return;
}
if(info.getWorker() == null) {
JsrWebSocketLogger.ROOT_LOGGER.xnioWorkerWasNull();
}
final List<ThreadSetupAction> setup = new ArrayList<ThreadSetupAction>();
setup.add(new ContextClassLoaderSetupAction(deploymentInfo.getClassLoader()));
setup.addAll(deploymentInfo.getThreadSetupActions());
final CompositeThreadSetupAction threadSetupAction = new CompositeThreadSetupAction(setup);
ServerWebSocketContainer container = new ServerWebSocketContainer(deploymentInfo.getClassIntrospecter(), servletContext.getClassLoader(), info.getWorker(), info.getBuffers(), threadSetupAction, false);
try {
for (Class<?> annotation : info.getAnnotatedEndpoints()) {
container.addEndpoint(annotation);
}
for (ServerEndpointConfig programatic : info.getProgramaticEndpoints()) {
container.addEndpoint(programatic);
}
} catch (DeploymentException e) {
throw new RuntimeException(e);
}
servletContext.setAttribute(ServerContainer.class.getName(), container);
info.containerReady(container);
SecurityActions.addContainer(deploymentInfo.getClassLoader(), container);
deploymentInfo.addListener(Servlets.listener(WebSocketListener.class));
}
private static final class WebSocketListener implements ServletContextListener {
private ServerWebSocketContainer container;
@Override
public void contextInitialized(ServletContextEvent sce) {
container = (ServerWebSocketContainer) sce.getServletContext().getAttribute(ServerContainer.class.getName());
FilterRegistration.Dynamic filter = sce.getServletContext().addFilter(FILTER_NAME, JsrWebSocketFilter.class);
filter.setAsyncSupported(true);
if (!container.getConfiguredServerEndpoints().isEmpty()) {
filter.addMappingForUrlPatterns(EnumSet.of(DispatcherType.REQUEST), true, "/*");
} else {
container.setContextToAddFilter((ServletContextImpl) sce.getServletContext());
}
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
SecurityActions.removeContainer(sce.getServletContext().getClassLoader());
container.close();
}
}
}