org.eclipse.jetty.util.MultiException Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of ehcache Show documentation
Show all versions of ehcache Show documentation
Ehcache is an open source, standards-based cache used to boost performance,
offload the database and simplify scalability. Ehcache is robust, proven and full-featured and
this has made it the most widely-used Java-based cache.
//
// ========================================================================
// Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.util;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.List;
/* ------------------------------------------------------------ */
/** Wraps multiple exceptions.
*
* Allows multiple exceptions to be thrown as a single exception.
*
*
*/
@SuppressWarnings("serial")
public class MultiException extends Exception
{
private Object nested;
/* ------------------------------------------------------------ */
public MultiException()
{
super("Multiple exceptions");
}
/* ------------------------------------------------------------ */
public void add(Throwable e)
{
if (e instanceof MultiException)
{
MultiException me = (MultiException)e;
for (int i=0;i getThrowables()
{
return LazyList.getList(nested);
}
/* ------------------------------------------------------------ */
public Throwable getThrowable(int i)
{
return (Throwable) LazyList.get(nested,i);
}
/* ------------------------------------------------------------ */
/** Throw a multiexception.
* If this multi exception is empty then no action is taken. If it
* contains a single exception that is thrown, otherwise the this
* multi exception is thrown.
* @exception Exception
*/
public void ifExceptionThrow()
throws Exception
{
switch (LazyList.size(nested))
{
case 0:
break;
case 1:
Throwable th=(Throwable)LazyList.get(nested,0);
if (th instanceof Error)
throw (Error)th;
if (th instanceof Exception)
throw (Exception)th;
default:
throw this;
}
}
/* ------------------------------------------------------------ */
/** Throw a Runtime exception.
* If this multi exception is empty then no action is taken. If it
* contains a single error or runtime exception that is thrown, otherwise the this
* multi exception is thrown, wrapped in a runtime exception.
* @exception Error If this exception contains exactly 1 {@link Error}
* @exception RuntimeException If this exception contains 1 {@link Throwable} but it is not an error,
* or it contains more than 1 {@link Throwable} of any type.
*/
public void ifExceptionThrowRuntime()
throws Error
{
switch (LazyList.size(nested))
{
case 0:
break;
case 1:
Throwable th=(Throwable)LazyList.get(nested,0);
if (th instanceof Error)
throw (Error)th;
else if (th instanceof RuntimeException)
throw (RuntimeException)th;
else
throw new RuntimeException(th);
default:
throw new RuntimeException(this);
}
}
/* ------------------------------------------------------------ */
/** Throw a multiexception.
* If this multi exception is empty then no action is taken. If it
* contains a any exceptions then this
* multi exception is thrown.
*/
public void ifExceptionThrowMulti()
throws MultiException
{
if (LazyList.size(nested)>0)
throw this;
}
/* ------------------------------------------------------------ */
@Override
public String toString()
{
if (LazyList.size(nested)>0)
return MultiException.class.getSimpleName()+
LazyList.getList(nested);
return MultiException.class.getSimpleName()+"[]";
}
/* ------------------------------------------------------------ */
@Override
public void printStackTrace()
{
super.printStackTrace();
for (int i=0;i