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/*
* 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.
*/
/**
* @author Michael Danilov
* @version $Revision$
*/
package java.awt.event;
import java.awt.AWTEvent;
import java.awt.ActiveEvent;
import org.apache.harmony.awt.internal.nls.Messages;
/**
* This class is not supported in Android 1.0. It is merely provided to maintain
* interface compatibility with desktop Java implementations.
*
* @since Android 1.0
*/
public class InvocationEvent extends AWTEvent implements ActiveEvent {
private static final long serialVersionUID = 436056344909459450L;
public static final int INVOCATION_FIRST = 1200;
public static final int INVOCATION_DEFAULT = 1200;
public static final int INVOCATION_LAST = 1200;
protected Runnable runnable;
protected Object notifier;
protected boolean catchExceptions;
private long when;
private Throwable throwable;
public InvocationEvent(Object source, Runnable runnable) {
this(source, runnable, null, false);
}
public InvocationEvent(Object source, Runnable runnable,
Object notifier, boolean catchExceptions) {
this(source, INVOCATION_DEFAULT, runnable, notifier, catchExceptions);
}
protected InvocationEvent(Object source, int id, Runnable runnable,
Object notifier, boolean catchExceptions)
{
super(source, id);
// awt.18C=Cannot invoke null runnable
assert runnable != null : Messages.getString("awt.18C"); //$NON-NLS-1$
if (source == null) {
// awt.18D=Source is null
throw new IllegalArgumentException(Messages.getString("awt.18D")); //$NON-NLS-1$
}
this.runnable = runnable;
this.notifier = notifier;
this.catchExceptions = catchExceptions;
throwable = null;
when = System.currentTimeMillis();
}
public void dispatch() {
if (!catchExceptions) {
runAndNotify();
} else {
try {
runAndNotify();
} catch (Throwable t) {
throwable = t;
}
}
}
private void runAndNotify() {
if (notifier != null) {
synchronized(notifier) {
try {
runnable.run();
} finally {
notifier.notifyAll();
}
}
} else {
runnable.run();
}
}
public Exception getException() {
return (throwable != null && throwable instanceof Exception) ?
(Exception)throwable : null;
}
public Throwable getThrowable() {
return throwable;
}
public long getWhen() {
return when;
}
@Override
public String paramString() {
/* The format is based on 1.5 release behavior
* which can be revealed by the following code:
*
* InvocationEvent e = new InvocationEvent(new Component(){},
* new Runnable() { public void run(){} });
* System.out.println(e);
*/
return ((id == INVOCATION_DEFAULT ? "INVOCATION_DEFAULT" : "unknown type") + //$NON-NLS-1$ //$NON-NLS-2$
",runnable=" + runnable + //$NON-NLS-1$
",notifier=" + notifier + //$NON-NLS-1$
",catchExceptions=" + catchExceptions + //$NON-NLS-1$
",when=" + when); //$NON-NLS-1$
}
}
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