/*
* 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.
*/
package org.apache.deltaspike.core.impl.exception.control;
import org.apache.deltaspike.core.api.exception.control.ExceptionHandlingFlow;
import org.apache.deltaspike.core.api.exception.control.event.ExceptionStackEvent;
import org.apache.deltaspike.core.spi.exception.control.event.IntrospectiveExceptionEvent;
import javax.enterprise.inject.Typed;
/**
* Payload for an exception to be handled. This object is not immutable as small pieces of the state may be set by the
* handler.
*
* @param <T> Exception type this event represents
*/
@Typed()
public class DefaultExceptionEvent<T extends Throwable> implements IntrospectiveExceptionEvent<T>
{
private final T exception;
private boolean unmute;
private ExceptionHandlingFlow flow;
private Throwable throwNewException;
private final boolean beforeTraversal;
private final boolean markedHandled;
/**
* Initial state constructor.
*
* @param stackEvent Information about the current exception and cause chain.
* @param beforeTraversal flag indicating the direction of the cause chain traversal
* @param handled flag indicating the exception has already been handled by a previous handler
* @throws IllegalArgumentException if stackEvent is null
*/
public DefaultExceptionEvent(final ExceptionStackEvent stackEvent, final boolean beforeTraversal,
final boolean handled)
{
if (stackEvent == null)
{
throw new IllegalArgumentException("null is not valid for stackEvent");
}
exception = (T) stackEvent.getCurrent();
this.beforeTraversal = beforeTraversal;
markedHandled = handled;
flow = ExceptionHandlingFlow.HANDLED_AND_CONTINUE;
}
@Override
public T getException()
{
return exception;
}
@Override
public void abort()
{
flow = ExceptionHandlingFlow.ABORT;
}
@Override
public void throwOriginal()
{
flow = ExceptionHandlingFlow.THROW_ORIGINAL;
}
@Override
public void handled()
{
flow = ExceptionHandlingFlow.HANDLED;
}
@Override
public void handledAndContinue()
{
flow = ExceptionHandlingFlow.HANDLED_AND_CONTINUE;
}
@Override
public void skipCause()
{
flow = ExceptionHandlingFlow.SKIP_CAUSE;
}
@Override
public void unmute()
{
unmute = true;
}
@Override
public boolean isUnmute()
{
return unmute;
}
/* Later
public ExceptionStackEvent getExceptionStack() {
}
*/
@Override
public ExceptionHandlingFlow getCurrentExceptionHandlingFlow()
{
return flow;
}
@Override
public boolean isMarkedHandled()
{
return markedHandled;
}
@Override
public boolean isBeforeTraversal()
{
return beforeTraversal;
}
@Override
public void rethrow(Throwable t)
{
throwNewException = t;
flow = ExceptionHandlingFlow.THROW;
}
@Override
public Throwable getThrowNewException()
{
return throwNewException;
}
}