/**
* 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.curator.utils;
import com.google.common.base.
Throwables;
/**
* Utility to accumulate multiple potential exceptions into one that
* is thrown at the end
*/
public class
ExceptionAccumulator
{
private volatile
Throwable mainEx = null;
/**
* If there is an accumulated exception, throw it
*/
public void
propagate()
{
if (
mainEx != null )
{
Throwables.
propagate(
mainEx);
}
}
/**
* Add an exception into the accumulated exceptions. Note:
* if the exception is {@link java.lang.InterruptedException}
* then <code>Thread.currentThread().interrupt()</code> is called.
*
* @param e the exception
*/
public void
add(
Throwable e)
{
if (
e instanceof
InterruptedException )
{
if (
mainEx != null )
{
e.
addSuppressed(
mainEx);
}
Thread.
currentThread().
interrupt();
}
if (
mainEx == null )
{
mainEx =
e;
}
else
{
mainEx.
addSuppressed(
e);
}
}
}