001 /* 002 * CDDL HEADER START 003 * 004 * The contents of this file are subject to the terms of the 005 * Common Development and Distribution License, Version 1.0 only 006 * (the "License"). You may not use this file except in compliance 007 * with the License. 008 * 009 * You can obtain a copy of the license at 010 * docs/licenses/cddl.txt 011 * or http://www.opensource.org/licenses/cddl1.php. 012 * See the License for the specific language governing permissions 013 * and limitations under the License. 014 * 015 * When distributing Covered Code, include this CDDL HEADER in each 016 * file and include the License file at 017 * docs/licenses/cddl.txt. If applicable, 018 * add the following below this CDDL HEADER, with the fields enclosed 019 * by brackets "[]" replaced with your own identifying information: 020 * Portions Copyright [yyyy] [name of copyright owner] 021 * 022 * CDDL HEADER END 023 * 024 * 025 * Copyright 2010-2013 UnboundID Corp. 026 */ 027 package com.unboundid.directory.sdk.common.api; 028 029 030 031 import com.unboundid.directory.sdk.ds.internal.DirectoryServerExtension; 032 import com.unboundid.directory.sdk.metrics.internal.MetricsEngineExtension; 033 import com.unboundid.directory.sdk.proxy.internal.DirectoryProxyServerExtension; 034 import com.unboundid.directory.sdk.sync.internal.SynchronizationServerExtension; 035 import com.unboundid.util.Extensible; 036 import com.unboundid.util.ThreadSafety; 037 import com.unboundid.util.ThreadSafetyLevel; 038 039 040 041 /** 042 * This interface defines a set of methods that should be implemented by classes 043 * which should be notified when the server has begun the process of shutting 044 * down. Shutdown listeners should be registered with the server using the 045 * {@code ServerContext.registerShutdownListener} method, and the corresponding 046 * {@code deregisterShutdownListener} should be used to deregister the listener 047 * if it is no longer needed. 048 * <BR><BR> 049 * Most types of extensions will not need to implement this interface, since 050 * they may use their own finalization method to be notified when the extension 051 * is to be taken out of service (either because the server is shutting down or 052 * because the extension is being disabled or removed). However, it may be 053 * useful for background threads that may not be tied to any single instance of 054 * an extension. 055 */ 056 @Extensible() 057 @DirectoryServerExtension() 058 @DirectoryProxyServerExtension(appliesToLocalContent=true, 059 appliesToRemoteContent=false) 060 @SynchronizationServerExtension(appliesToLocalContent=true, 061 appliesToSynchronizedContent=false) 062 @MetricsEngineExtension() 063 @ThreadSafety(level=ThreadSafetyLevel.INTERFACE_NOT_THREADSAFE) 064 public interface ServerShutdownListener 065 { 066 /** 067 * Performs any processing that may be necessary when the server begins the 068 * shutdown process. 069 * 070 * @param reason Information about the reason for the shutdown. 071 */ 072 void processServerShutdown(final String reason); 073 }