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//
//  ========================================================================
//  Copyright (c) 1995-2016 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); } } } }




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