org.eclipse.jetty.util.log.StacklessLogging Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2018 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.log;
/**
* A try-with-resources compatible layer for {@link StdErrLog#setHideStacks(boolean) hiding stacktraces} within the scope of the try block when
* logging with {@link StdErrLog} implementation.
*
* Use of other logging implementation cause no effect when using this class
*
* Example:
*
*
* try (StacklessLogging scope = new StacklessLogging(EventDriver.class,Noisy.class))
* {
* doActionThatCausesStackTraces();
* }
*
*/
public class StacklessLogging implements AutoCloseable
{
private final Class clazzes[];
public StacklessLogging(Class... classesToSquelch)
{
this.clazzes = classesToSquelch;
hideStacks(true);
}
@Override
public void close() throws Exception
{
hideStacks(false);
}
private void hideStacks(boolean hide)
{
for (Class clazz : clazzes)
{
Logger log = Log.getLogger(clazz);
if (log == null)
{
// not interested in classes without loggers
continue;
}
if (log instanceof StdErrLog)
{
// only operate on loggers that are of type StdErrLog
((StdErrLog)log).setHideStacks(hide);
}
}
}
}