org.picketlink.common.reflection.SecurityActions Maven / Gradle / Ivy
/*
*JBoss, Home of Professional Open Source
*
*Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
*Licensed under the Apache License, Version 2.0 (the "License");
*you may not use this file except in compliance with the License.
*You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*Unless required by applicable law or agreed to in writing, software
*distributed under the License is distributed on an "AS IS" BASIS,
*WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*See the License for the specific language governing permissions and
*limitations under the License.
*/
package org.picketlink.common.reflection;
import java.lang.reflect.Constructor;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
/**
* Privileged Blocks
*
* @author Ivo Studensky
*/
class SecurityActions {
static ClassLoader getTCCL() {
if (System.getSecurityManager() != null) {
return AccessController.doPrivileged(new PrivilegedAction() {
public ClassLoader run() {
return Thread.currentThread().getContextClassLoader();
}
});
} else {
return Thread.currentThread().getContextClassLoader();
}
}
static ClassLoader getClassLoader(final Class clazz) {
if (System.getSecurityManager() != null) {
return AccessController.doPrivileged(new PrivilegedAction() {
@Override
public ClassLoader run() {
return clazz.getClassLoader();
}
});
} else {
return clazz.getClassLoader();
}
}
static Constructor getDeclaredConstructor(final Class clazz) throws NoSuchMethodException {
if (System.getSecurityManager() != null) {
try {
return AccessController.doPrivileged(new PrivilegedExceptionAction>() {
@Override
public Constructor run() throws Exception {
return clazz.getDeclaredConstructor();
}
});
} catch (PrivilegedActionException pae) {
throw (NoSuchMethodException) pae.getException();
}
}
return clazz.getDeclaredConstructor();
}
}