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Utility classes for Jetty

There is a newer version: 12.1.0.alpha0

//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//

package org.eclipse.jetty.util.component;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A LifeCycle that when started will stop another LifeCycle
 */
public class StopLifeCycle extends AbstractLifeCycle implements LifeCycle.Listener
{
    private static final Logger LOG = LoggerFactory.getLogger(StopLifeCycle.class);

    private final LifeCycle _lifecycle;

    public StopLifeCycle(LifeCycle lifecycle)
    {
        _lifecycle = lifecycle;
        addEventListener(this);
    }

    @Override
    public void lifeCycleStarted(LifeCycle lifecycle)
    {
        try
        {
            _lifecycle.stop();
        }
        catch (Exception e)
        {
            LOG.warn("Unable to stop", e);
        }
    }
}