2 * Copyright (C) 2007-2012 Argeo GmbH
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org
.argeo
.security
.core
;
18 import javax
.security
.auth
.Subject
;
19 import javax
.security
.auth
.login
.LoginContext
;
20 import javax
.security
.auth
.login
.LoginException
;
22 import org
.apache
.commons
.logging
.Log
;
23 import org
.apache
.commons
.logging
.LogFactory
;
24 import org
.argeo
.ArgeoException
;
26 /** Provides base method for executing code with system authorization. */
27 public abstract class AbstractSystemExecution
{
28 private final static Log log
= LogFactory
.getLog(AbstractSystemExecution
.class);
29 private final Subject subject
= new Subject();
31 private final String loginModule
= "SYSTEM";
34 * Authenticate the calling thread to the underlying
35 * {@link AuthenticationManager}
37 protected void authenticateAsSystem() {
38 ClassLoader origClassLoader
= Thread
.currentThread().getContextClassLoader();
39 Thread
.currentThread().setContextClassLoader(getClass().getClassLoader());
41 LoginContext lc
= new LoginContext(loginModule
, subject
);
43 } catch (LoginException e
) {
44 throw new ArgeoException("Cannot login as system", e
);
46 Thread
.currentThread().setContextClassLoader(origClassLoader
);
48 if (log
.isTraceEnabled())
49 log
.trace("System authenticated");
52 protected void deauthenticateAsSystem() {
53 ClassLoader origClassLoader
= Thread
.currentThread().getContextClassLoader();
54 Thread
.currentThread().setContextClassLoader(getClass().getClassLoader());
56 LoginContext lc
= new LoginContext(loginModule
, subject
);
58 } catch (LoginException e
) {
59 throw new ArgeoException("Cannot logout as system", e
);
61 Thread
.currentThread().setContextClassLoader(origClassLoader
);
65 protected Subject
getSubject() {