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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ShutdownCoordinatorImpl.java | 83.3% | 91.3% | 83.3% | 87.8% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.hivemind.impl;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hivemind.ShutdownCoordinator;
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import org.apache.hivemind.events.RegistryShutdownListener;
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import org.apache.hivemind.util.EventListenerList;
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/**
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* Manages a list of objects that implement the
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* {@link org.apache.hivemind.events.RegistryShutdownListener}interface.
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*
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* @author Howard Lewis Ship
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*/
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public final class ShutdownCoordinatorImpl implements ShutdownCoordinator |
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{ |
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private final Log _log;
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private Set alreadyShutdown;
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public ShutdownCoordinatorImpl()
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{ |
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this(LogFactory.getLog(ShutdownCoordinatorImpl.class)); |
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} |
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public ShutdownCoordinatorImpl(Log log)
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{ |
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_log = log; |
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} |
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private EventListenerList _listenerList;
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public synchronized void addRegistryShutdownListener( |
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RegistryShutdownListener s) |
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{ |
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if (_listenerList == null) |
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_listenerList = new EventListenerList();
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_listenerList.addListener(s); |
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} |
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public synchronized void removeRegistryShutdownListener( |
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RegistryShutdownListener s) |
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{ |
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if (_listenerList != null) |
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_listenerList.removeListener(s); |
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} |
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public void shutdown() |
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{ |
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if (_listenerList == null) |
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return;
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Iterator i = _listenerList.getListeners(); |
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_listenerList = null;
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while (i.hasNext())
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{ |
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RegistryShutdownListener s = (RegistryShutdownListener) i.next(); |
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shutdown(s); |
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} |
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_listenerList = null;
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} |
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private void shutdown(RegistryShutdownListener s) |
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{ |
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if (alreadyShutdown == null) |
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{ |
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alreadyShutdown = new HashSet();
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} |
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final Long id = new Long(System.identityHashCode(s));
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if (!alreadyShutdown.contains(id))
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{ |
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try
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{ |
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s.registryDidShutdown(); |
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} |
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catch (RuntimeException ex)
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{ |
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_log.error(ImplMessages.shutdownCoordinatorFailure(s, ex), ex); |
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} |
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finally
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{ |
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alreadyShutdown.add(id); |
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} |
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} |
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} |
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} |
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