org.apache.cxf.common.util.SystemPropertyAction Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.common.util;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.cxf.common.logging.LogUtils;
/**
*
*/
public final class SystemPropertyAction implements PrivilegedAction {
private static final Logger LOG = LogUtils.getL7dLogger(SystemPropertyAction.class);
final String property;
final String def;
private SystemPropertyAction(String name) {
property = name;
def = null;
}
private SystemPropertyAction(String name, String d) {
property = name;
def = d;
}
/* (non-Javadoc)
* @see java.security.PrivilegedAction#run()
*/
public String run() {
if (def != null) {
return System.getProperty(property, def);
}
return System.getProperty(property);
}
public static String getProperty(String name) {
return AccessController.doPrivileged(new SystemPropertyAction(name));
}
public static String getProperty(String name, String def) {
try {
return AccessController.doPrivileged(new SystemPropertyAction(name, def));
} catch (SecurityException ex) {
LOG.log(Level.FINE, "SecurityException raised getting property " + name, ex);
return def;
}
}
/**
* Get the system propery via the AccessController, but if a SecurityException is
* raised, just return null;
* @param name
* @return
*/
public static String getPropertyOrNull(String name) {
try {
return AccessController.doPrivileged(new SystemPropertyAction(name));
} catch (SecurityException ex) {
LOG.log(Level.FINE, "SecurityException raised getting property " + name, ex);
return null;
}
}
}