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/*
* Copyright (C) 2010 Google Inc.
*
* 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 benchmarks.regression;
import com.google.caliper.Param;
import com.google.caliper.Runner;
import com.google.caliper.SimpleBenchmark;
import java.security.AccessController;
import java.security.PrivilegedAction;
public class DoPrivilegedBenchmark extends SimpleBenchmark {
public void timeDirect(int reps) throws Exception {
for (int i = 0; i < reps; ++i) {
String lineSeparator = System.getProperty("line.separator");
}
}
public void timeFastAndSlow(int reps) throws Exception {
for (int i = 0; i < reps; ++i) {
String lineSeparator;
if (System.getSecurityManager() == null) {
lineSeparator = System.getProperty("line.separator");
} else {
lineSeparator = AccessController.doPrivileged(new PrivilegedAction<String>() {
public String run() {
return System.getProperty("line.separator");
}
});
}
}
}
public void timeNewAction(int reps) throws Exception {
for (int i = 0; i < reps; ++i) {
String lineSeparator = AccessController.doPrivileged(new PrivilegedAction<String>() {
public String run() {
return System.getProperty("line.separator");
}
});
}
}
public void timeReusedAction(int reps) throws Exception {
final PrivilegedAction<String> action = new ReusableAction("line.separator");
for (int i = 0; i < reps; ++i) {
String lineSeparator = AccessController.doPrivileged(action);
}
}
private static final class ReusableAction implements PrivilegedAction<String> {
private final String propertyName;
public ReusableAction(String propertyName) {
this.propertyName = propertyName;
}
public String run() {
return System.getProperty(propertyName);
}
}
}
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