Refactor Shiro/HTTP integration
[aaa.git] / aaa-shiro / impl / src / main / java / org / opendaylight / aaa / shiro / filters / AAAShiroFilter.java
1 /*
2  * Copyright (c) 2016 - 2017 Brocade Communications Systems, Inc. and others.  All rights reserved.
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6  * and is available at http://www.eclipse.org/legal/epl-v10.html
7  */
8 package org.opendaylight.aaa.shiro.filters;
9
10 import static java.util.Objects.requireNonNull;
11
12 import javax.servlet.Filter;
13 import org.apache.shiro.web.env.WebEnvironment;
14 import org.apache.shiro.web.servlet.AbstractShiroFilter;
15 import org.slf4j.Logger;
16 import org.slf4j.LoggerFactory;
17
18 /**
19  * The default AAA JAX-RS Web {@link Filter} based on {@link AbstractShiroFilter}. It gets a constant reference
20  * to a Shiro {@link WebEnvironment} at instantiation time and it during {@link #init()}.
21  */
22 public final class AAAShiroFilter extends AbstractShiroFilter {
23     private static final Logger LOG = LoggerFactory.getLogger(AAAShiroFilter.class);
24
25     private final WebEnvironment env;
26
27     public AAAShiroFilter(final WebEnvironment env) {
28         this.env = requireNonNull(env);
29         LOG.debug("Instantiated AAAShiroFilter for {}", env);
30     }
31
32     @Override
33     public void init() {
34         LOG.debug("Initializing AAAShiroFilter");
35         setSecurityManager(env.getWebSecurityManager());
36
37         final var resolver = env.getFilterChainResolver();
38         if (resolver != null) {
39             setFilterChainResolver(resolver);
40         }
41         LOG.debug("AAAShiroFilter initialized");
42     }
43 }