/*
|
* CDDL HEADER START
|
*
|
* The contents of this file are subject to the terms of the
|
* Common Development and Distribution License, Version 1.0 only
|
* (the "License"). You may not use this file except in compliance
|
* with the License.
|
*
|
* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
|
* or http://forgerock.org/license/CDDLv1.0.html.
|
* See the License for the specific language governing permissions
|
* and limitations under the License.
|
*
|
* When distributing Covered Code, include this CDDL HEADER in each
|
* file and include the License file at legal-notices/CDDLv1_0.txt.
|
* If applicable, add the following below this CDDL HEADER, with the
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
* information:
|
* Portions Copyright [yyyy] [name of copyright owner]
|
*
|
* CDDL HEADER END
|
*
|
*
|
* Copyright 2008-2010 Sun Microsystems, Inc.
|
* Portions Copyright 2014-2015 ForgeRock AS
|
*/
|
package org.opends.server.monitors;
|
|
import java.util.Collections;
|
import java.util.List;
|
|
import org.forgerock.i18n.LocalizableMessage;
|
import org.forgerock.i18n.slf4j.LocalizedLogger;
|
import org.opends.server.admin.std.server.EntryCacheCfg;
|
import org.opends.server.admin.std.server.EntryCacheMonitorProviderCfg;
|
import org.opends.server.api.EntryCache;
|
import org.opends.server.api.MonitorProvider;
|
import org.opends.server.config.ConfigConstants;
|
import org.forgerock.opendj.config.server.ConfigException;
|
import org.opends.server.core.DirectoryServer;
|
import org.opends.server.types.Attribute;
|
|
import static org.opends.messages.ConfigMessages.*;
|
|
/**
|
* This class defines a Directory Server monitor provider that can be used to
|
* obtain information about the entry cache state. Note that the information
|
* reported is obtained with no locking, so it may not be entirely consistent.
|
*/
|
public class EntryCacheMonitorProvider
|
extends MonitorProvider<EntryCacheMonitorProviderCfg>
|
{
|
|
private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
|
|
/** The name for this monitor. */
|
private String monitorName;
|
|
/** The entry cache common name. */
|
private String entryCacheName;
|
|
/** The entry cache with which this monitor is associated. */
|
private EntryCache<? extends EntryCacheCfg> entryCache;
|
|
/** Entry cache monitor configuration. */
|
private EntryCacheMonitorProviderCfg monitorConfiguration;
|
|
/**
|
* Creates default instance of this monitor provider.
|
*/
|
public EntryCacheMonitorProvider()
|
{
|
this.entryCacheName = "Entry Caches";
|
this.entryCache = DirectoryServer.getEntryCache();
|
}
|
|
/**
|
* Creates implementation specific instance of this monitor provider.
|
*
|
* @param entryCacheName The name to use for this monitor provider.
|
* @param entryCache The entry cache to associate this monitor
|
* provider with.
|
*/
|
public EntryCacheMonitorProvider(
|
String entryCacheName,
|
EntryCache<? extends EntryCacheCfg> entryCache)
|
{
|
this.entryCacheName = entryCacheName + " Entry Cache";
|
this.entryCache = entryCache;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void initializeMonitorProvider(
|
EntryCacheMonitorProviderCfg configuration)
|
throws ConfigException
|
{
|
monitorName = entryCacheName;
|
|
if (configuration != null) {
|
monitorConfiguration = configuration;
|
}
|
if (monitorConfiguration == null) {
|
LocalizableMessage message =
|
INFO_WARN_CONFIG_ENTRYCACHE_NO_MONITOR_CONFIG_ENTRY.get(
|
ConfigConstants.DN_ENTRY_CACHE_MONITOR_CONFIG, monitorName);
|
logger.debug(message);
|
throw new ConfigException(message);
|
}
|
if (!monitorConfiguration.isEnabled()) {
|
LocalizableMessage message =
|
INFO_WARN_CONFIG_ENTRYCACHE_MONITOR_CONFIG_DISABLED.get(
|
ConfigConstants.DN_ENTRY_CACHE_MONITOR_CONFIG, monitorName);
|
logger.debug(message);
|
throw new ConfigException(message);
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public String getMonitorInstanceName()
|
{
|
return monitorName;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public List<Attribute> getMonitorData()
|
{
|
if (entryCache != null &&
|
monitorConfiguration != null &&
|
monitorConfiguration.isEnabled()) {
|
// Get monitor data from the cache.
|
return entryCache.getMonitorData();
|
}
|
return Collections.emptyList();
|
}
|
}
|
