/**
* Copyright (C) cedarsoft GmbH.
*
* Licensed under the GNU General Public License version 3 (the "License")
* with Classpath Exception; you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.cedarsoft.org/gpl3ce
* (GPL 3 with Classpath Exception)
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 only, as
* published by the Free Software Foundation. cedarsoft GmbH designates this
* particular file as subject to the "Classpath" exception as provided
* by cedarsoft GmbH in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 3 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 3 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
* or visit www.cedarsoft.com if you need additional information or
* have any questions.
*/
package com.cedarsoft;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.SwingUtilities;
import java.lang.IllegalThreadStateException;
import java.lang.InterruptedException;
import java.lang.Runnable;
import java.lang.reflect.InvocationTargetException;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
/**
* Offers static thread utils
*
* @author Johannes Schneider (<a href=mailto:js@cedarsoft.com>js@cedarsoft.com</a>)
*/
public class ThreadUtils {
/**
* <p>isEventDispatchThread</p>
*
* @return a boolean.
*/
public static boolean isEventDispatchThread() {
return SwingUtilities.isEventDispatchThread();
}
/**
* <p>assertEventDispatchThread</p>
*
* @throws IllegalThreadStateException
* if any.
*/
public static void assertEventDispatchThread() throws IllegalThreadStateException {
if ( !isEventDispatchThread() ) {
throw new IllegalThreadStateException( "Not in EDT" );
}
}
/**
* <p>assertNotEventDispatchThread</p>
*
* @throws IllegalThreadStateException
* if any.
*/
public static void assertNotEventDispatchThread() throws IllegalThreadStateException {
if ( isEventDispatchThread() ) {
throw new IllegalThreadStateException( "Is EDT" );
}
}
/**
* <p>inokeInOtherThread</p>
*
* @param callable a {@link Callable} object.
* @return a T object.
*
* @throws ExecutionException
* if any.
* @throws InterruptedException if any.
*/
@Nullable
public static <T> T inokeInOtherThread( @NotNull Callable<T> callable ) throws ExecutionException, InterruptedException {
ExecutorService executor = Executors.newSingleThreadExecutor();
try {
Future<T> future = executor.submit( callable );
return future.get();
} finally {
executor.shutdown();
}
}
/**
* Invokes the runnable within the EDT
*
* @param runnable a {@link Runnable} object.
*/
public static void invokeInEventDispatchThread( @NotNull Runnable runnable ) {
if ( isEventDispatchThread() ) {
runnable.run();
} else {
try {
SwingUtilities.invokeAndWait( runnable );
} catch ( InterruptedException e ) {
throw new RuntimeException( e );
} catch ( InvocationTargetException e ) {
throw new RuntimeException( e );
}
}
}
}