org.microemu.util.ThreadUtils Maven / Gradle / Ivy
/**
* MicroEmulator
* Copyright (C) 2006-2007 Bartek Teodorczyk
* Copyright (C) 2006-2007 Vlad Skarzhevskyy
*
* It is licensed under the following two licenses as alternatives:
* 1. GNU Lesser General Public License (the "LGPL") version 2.1 or any newer version
* 2. Apache License (the "AL") Version 2.0
*
* You may not use this file except in compliance with at least one of
* the above two licenses.
*
* You may obtain a copy of the LGPL at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
*
* You may obtain a copy of the AL 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 LGPL or the AL for the specific language governing permissions and
* limitations.
*
* @version $Id: ThreadUtils.java 1605 2008-02-25 21:07:14Z barteo $
*/
package org.microemu.util;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.Timer;
public class ThreadUtils {
private static boolean java13 = false;
private static boolean java14 = false;
/**
* Creates a new timer whose associated thread has the specified name in Java 1.5.
*
* @param name the name of the associated thread
*
*/
public static Timer createTimer(String name) {
try {
Constructor c = Timer.class.getConstructor(new Class[] { String.class });
return (Timer)c.newInstance(new Object[]{name});
} catch (Throwable e) {
// In cany case create new Timer
return new Timer();
}
}
public static String getCallLocation(String fqn) {
if (!java13) {
try {
StackTraceElement[] ste = new Throwable().getStackTrace();
for (int i = 0; i < ste.length - 1; i++) {
if (fqn.equals(ste[i].getClassName())) {
StackTraceElement callLocation = ste[i + 1];
String nextClassName = callLocation.getClassName();
if (nextClassName.equals(fqn)) {
continue;
}
return callLocation.toString();
}
}
} catch (Throwable e) {
java13 = true;
}
}
return null;
}
public static String getTreadStackTrace(Thread t) {
if (java14) {
return "";
}
try {
// Java 1.5 thread.getStackTrace();
Method m = t.getClass().getMethod("getStackTrace", null);
StackTraceElement[] trace = (StackTraceElement[])m.invoke(t, null);
StringBuffer b = new StringBuffer();
for (int i=0; i < trace.length; i++) {
b.append("\n\tat ").append(trace[i]);
}
return b.toString();
} catch (Throwable e) {
java14 = true;
return "";
}
}
}