1 /*
2 * JBoss, Home of Professional Open Source.
3 * Copyright 2014 Red Hat, Inc., and individual contributors
4 * as indicated by the @author tags.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package io.undertow.servlet.core;
20
21 import io.undertow.server.HttpServerExchange;
22 import io.undertow.servlet.api.ThreadSetupHandler;
23 import io.undertow.servlet.handlers.ServletRequestContext;
24
25 /**
26 * @author Stuart Douglas
27 */
28 class ServletRequestContextThreadSetupAction implements ThreadSetupHandler {
29
30 static final ServletRequestContextThreadSetupAction INSTANCE = new ServletRequestContextThreadSetupAction();
31
32 private ServletRequestContextThreadSetupAction() {
33
34 }
35
36 @Override
37 public <T, C> Action<T, C> create(final Action<T, C> action) {
38 return new Action<T, C>() {
39 @Override
40 public T call(HttpServerExchange exchange, C context) throws Exception {
41 if (exchange == null) {
42 return action.call(null, context);
43 } else {
44 ServletRequestContext servletRequestContext = exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY);
45 final ServletRequestContext old = ServletRequestContext.current();
46 SecurityActions.setCurrentRequestContext(servletRequestContext);
47 try {
48 return action.call(exchange, context);
49 } finally {
50 ServletRequestContext.setCurrentRequestContext(old);
51 }
52 }
53 }
54 };
55 }
56 }
57