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.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.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, ServletContextImpl servletContext) {
WebSocketDeploymentInfo info = (WebSocketDeploymentInfo) deploymentInfo.getServletContextAttributes().get(WebSocketDeploymentInfo.ATTRIBUTE_NAME);
if (info == null) {
return;
}
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(), info.getWorker(), info.getBuffers(), threadSetupAction);
try {
for (Class<?> annotation : info.getAnnotatedEndpoints()) {
container.addEndpoint(annotation);
}
for(ServerEndpointConfig programatic : info.getProgramaticEndpoints()) {
container.addEndpoint(programatic);
}
} catch (DeploymentException e) {
throw new RuntimeException(e);
}
deploymentInfo.addFilter(Servlets.filter(FILTER_NAME, JsrWebSocketFilter.class).setAsyncSupported(true));
deploymentInfo.addFilterUrlMapping(FILTER_NAME, "/*", DispatcherType.REQUEST);
servletContext.setAttribute(ServerContainer.class.getName(), container);
info.containerReady(container);
UndertowContainerProvider.addContainer(deploymentInfo.getClassLoader(), container);
deploymentInfo.addListener(Servlets.listener(ContainerRemovedListener.class));
}
private static final class ContainerRemovedListener implements ServletContextListener {
@Override
public void contextInitialized(ServletContextEvent sce) {
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
UndertowContainerProvider.removeContainer(sce.getServletContext().getClassLoader());
}
}
}