/*
* Created on Dec 01, 2008
*
* 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.
*
* Copyright @2008-2010 the original author or authors.
*/
package org.fest.swing.edt;
import static org.fest.reflect.core.Reflection.staticMethod;
import javax.swing.*;
import org.fest.swing.exception.EdtViolationException;
/**
* <p>
* Fails a test when a Event Dispatch Thread rule violation is detected.<br/>
* See <a href="http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html">How to Use Threads</a> for more info
* </p>
*
* @author Alex Ruiz
*/
public class FailOnThreadViolationRepaintManager extends CheckThreadViolationRepaintManager {
/**
* Creates a new <code>{@link FailOnThreadViolationRepaintManager}</code> and sets it as the current repaint manager.
* <p>
* On Sun JVMs, this method will install the new repaint manager the first time only. Once installed, subsequent calls
* to this method will not install new repaint managers. This optimization may not work on non-Sun JVMs, since we use
* reflection to check if a {@code CheckThreadViolationRepaintManager} is already installed.
* </p>
* @return the created (and installed) repaint manager.
* @see RepaintManager#setCurrentManager(RepaintManager)
*/
public static FailOnThreadViolationRepaintManager install() {
Object m = currentRepaintManager();
if (m instanceof FailOnThreadViolationRepaintManager) return (FailOnThreadViolationRepaintManager)m;
return installNew();
}
private static Object currentRepaintManager() {
try {
return staticMethod("appContextGet").withReturnType(Object.class)
.withParameterTypes(Object.class)
.in(SwingUtilities.class)
.invoke(RepaintManager.class);
} catch (RuntimeException e) {
return null;
}
}
private static FailOnThreadViolationRepaintManager installNew() {
FailOnThreadViolationRepaintManager m = new FailOnThreadViolationRepaintManager();
setCurrentManager(m);
return m;
}
public FailOnThreadViolationRepaintManager() {}
public FailOnThreadViolationRepaintManager(boolean completeCheck) {
super(completeCheck);
}
/**
* Throws a <code>{@link EdtViolationException}</code> when a EDT access violation is found.
* @param c the component involved in the EDT violation.
* @param stackTraceElements stack trace elements to be set to the thrown exception.
* @throws EdtViolationException when a EDT access violation is found.
*/
@Override void violationFound(JComponent c, StackTraceElement[] stackTraceElements) {
EdtViolationException e = new EdtViolationException("EDT violation detected");
if (stackTraceElements != null) e.setStackTrace(stackTraceElements);
throw e;
}
}