/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Portions Copyright 2006-2007-2008 Sun Microsystems, Inc.
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* Portions Copyright 2013-2016 ForgeRock AS.
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*/
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package org.opends.server.config;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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import java.util.concurrent.CopyOnWriteArrayList;
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import javax.management.Attribute;
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import javax.management.AttributeList;
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import javax.management.AttributeNotFoundException;
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import javax.management.DynamicMBean;
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import javax.management.InvalidAttributeValueException;
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import javax.management.MBeanAttributeInfo;
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import javax.management.MBeanConstructorInfo;
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import javax.management.MBeanException;
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import javax.management.MBeanInfo;
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import javax.management.MBeanNotificationInfo;
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import javax.management.MBeanOperationInfo;
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import javax.management.MBeanServer;
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import javax.management.ObjectName;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.opendj.ldap.DN;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.forgerock.opendj.ldap.SearchScope;
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import org.forgerock.opendj.ldap.schema.AttributeType;
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import org.forgerock.opendj.server.config.server.MonitorProviderCfg;
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import org.forgerock.util.Utils;
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import org.opends.server.api.AlertGenerator;
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import org.opends.server.api.ClientConnection;
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import org.opends.server.api.DirectoryServerMBean;
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import org.opends.server.api.MonitorProvider;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.protocols.internal.InternalClientConnection;
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import org.opends.server.protocols.internal.InternalSearchOperation;
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import org.opends.server.protocols.internal.SearchRequest;
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import org.opends.server.protocols.jmx.Credential;
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import org.opends.server.protocols.jmx.JmxClientConnection;
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import org.opends.server.types.DirectoryException;
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import static org.opends.messages.ConfigMessages.*;
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import static org.opends.server.protocols.internal.Requests.*;
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import static org.opends.server.util.CollectionUtils.*;
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import static org.opends.server.util.ServerConstants.*;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* This class defines a JMX MBean that can be registered with the Directory
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* Server to provide monitoring and statistical information, provide read and/or
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* read-write access to the configuration, and provide notifications and alerts
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* if a significant event or severe/fatal error occurs.
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*/
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@org.opends.server.types.PublicAPI(
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stability=org.opends.server.types.StabilityLevel.VOLATILE,
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mayInstantiate=true,
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mayExtend=false,
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mayInvoke=true)
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public final class JMXMBean
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implements DynamicMBean, DirectoryServerMBean
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{
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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/** The fully-qualified name of this class. */
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private static final String CLASS_NAME = "org.opends.server.config.JMXMBean";
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/** The set of alert generators for this MBean. */
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private List<AlertGenerator> alertGenerators;
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/** The set of monitor providers for this MBean. */
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private List<MonitorProvider<? extends MonitorProviderCfg>> monitorProviders;
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/** The DN of the configuration entry with which this MBean is associated. */
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private DN configEntryDN;
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/** The object name for this MBean. */
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private ObjectName objectName;
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/**
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* Creates a JMX object name string based on a DN.
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*
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* @param configEntryDN The DN of the configuration entry with which
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* this ObjectName is associated.
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*
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* @return The string representation of the JMX Object Name
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* associated with the input DN.
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*/
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public static String getJmxName (DN configEntryDN)
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{
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try
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{
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String typeStr = null;
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String dnString = configEntryDN.toString();
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if (dnString != null && dnString.length() != 0)
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{
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StringBuilder buffer = new StringBuilder(dnString.length());
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String rdns[] = dnString.replace(',', ';').split(";");
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for (int j = rdns.length - 1; j >= 0; j--)
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{
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int rdnIndex = rdns.length - j;
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buffer.append(",Rdn").append(rdnIndex).append("=") ;
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for (int i = 0; i < rdns[j].length(); i++)
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{
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char c = rdns[j].charAt(i);
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if (isAlpha(c) || isDigit(c))
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{
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buffer.append(c);
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} else
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{
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switch (c)
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{
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case ' ':
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buffer.append("_");
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break;
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case '=':
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buffer.append("-");
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}
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}
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}
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}
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typeStr = buffer.toString();
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}
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return MBEAN_BASE_DOMAIN + ":" + "Name=rootDSE" + typeStr;
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} catch (Exception e)
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{
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logger.traceException(e);
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logger.error(ERR_CONFIG_JMX_CANNOT_REGISTER_MBEAN, configEntryDN, e);
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return null;
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}
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}
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/**
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* Creates a new dynamic JMX MBean for use with the Directory Server.
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*
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* @param configEntryDN The DN of the configuration entry with which this
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* MBean is associated.
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*/
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public JMXMBean(DN configEntryDN)
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{
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this.configEntryDN = configEntryDN;
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alertGenerators = new CopyOnWriteArrayList<>();
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monitorProviders = new CopyOnWriteArrayList<>();
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MBeanServer mBeanServer = DirectoryServer.getJMXMBeanServer();
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if (mBeanServer != null)
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{
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try
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{
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objectName = new ObjectName(getJmxName(configEntryDN)) ;
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try
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{
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if(mBeanServer.isRegistered(objectName))
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{
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mBeanServer.unregisterMBean(objectName);
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}
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}
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catch(Exception e)
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{
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logger.traceException(e);
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}
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mBeanServer.registerMBean(this, objectName);
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}
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catch (Exception e)
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{
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logger.traceException(e);
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logger.error(ERR_CONFIG_JMX_CANNOT_REGISTER_MBEAN, configEntryDN, e);
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}
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}
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}
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/**
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* Retrieves the JMX object name for this JMX MBean.
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*
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* @return The JMX object name for this JMX MBean.
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*/
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@Override
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public ObjectName getObjectName()
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{
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return objectName;
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}
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/**
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* Retrieves the set of alert generators for this JMX MBean.
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*
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* @return The set of alert generators for this JMX MBean.
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*/
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public List<AlertGenerator> getAlertGenerators()
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{
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return alertGenerators;
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}
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/**
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* Adds the provided alert generator to the set of alert generators associated
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* with this JMX MBean.
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*
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* @param generator The alert generator to add to the set of alert
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* generators for this JMX MBean.
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*/
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public void addAlertGenerator(AlertGenerator generator)
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{
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synchronized (alertGenerators)
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{
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if (! alertGenerators.contains(generator))
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{
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alertGenerators.add(generator);
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}
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}
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}
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/**
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* Removes the provided alert generator from the set of alert generators
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* associated with this JMX MBean.
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*
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* @param generator The alert generator to remove from the set of alert
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* generators for this JMX MBean.
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*
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* @return {@code true} if the alert generator was removed,
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* or {@code false} if it was not associated with this MBean.
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*/
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public boolean removeAlertGenerator(AlertGenerator generator)
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{
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synchronized (alertGenerators)
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{
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return alertGenerators.remove(generator);
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}
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}
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/**
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* Retrieves the set of monitor providers associated with this JMX MBean.
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*
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* @return The set of monitor providers associated with this JMX MBean.
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*/
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public List<MonitorProvider<? extends MonitorProviderCfg>>
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getMonitorProviders()
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{
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return monitorProviders;
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}
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/**
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* Adds the given monitor provider to the set of components associated with
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* this JMX MBean.
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*
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* @param component The component to add to the set of monitor providers
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* for this JMX MBean.
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*/
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public void addMonitorProvider(MonitorProvider<? extends MonitorProviderCfg> component)
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{
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synchronized (monitorProviders)
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{
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if (! monitorProviders.contains(component))
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{
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monitorProviders.add(component);
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}
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}
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}
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/**
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* Removes the given monitor provider from the set of components associated
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* with this JMX MBean.
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*
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* @param component The component to remove from the set of monitor
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* providers for this JMX MBean.
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*
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* @return {@code true} if the specified component was successfully removed,
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* or {@code false} if not.
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*/
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public boolean removeMonitorProvider(MonitorProvider<?> component)
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{
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synchronized (monitorProviders)
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{
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return monitorProviders.remove(component);
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}
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}
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/**
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* Retrieves the specified configuration attribute.
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*
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* @param name The name of the configuration attribute to retrieve.
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*
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* @return The specified configuration attribute, or {@code null} if
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* there is no such attribute.
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*/
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private Attribute getJmxAttribute(String name)
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{
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// It's possible that this is a monitor attribute rather than a configurable
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// one. Check all of those.
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AttributeType attrType = DirectoryServer.getInstance().getServerContext().getSchema().getAttributeType(name);
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for (MonitorProvider<? extends MonitorProviderCfg> monitor : monitorProviders)
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{
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for (org.opends.server.types.Attribute a : monitor.getMonitorData())
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{
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if (attrType.equals(a.getAttributeDescription().getAttributeType()))
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{
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if (a.isEmpty())
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{
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continue;
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}
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Iterator<ByteString> iterator = a.iterator();
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ByteString firstValue = iterator.next();
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if (iterator.hasNext())
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{
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List<String> stringValues = newArrayList(firstValue.toString());
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while (iterator.hasNext())
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{
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ByteString value = iterator.next();
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stringValues.add(value.toString());
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}
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String[] valueArray = stringValues.toArray(new String[stringValues.size()]);
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return new Attribute(name, valueArray);
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}
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else
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{
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return new Attribute(name, firstValue.toString());
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}
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}
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}
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}
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return null;
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}
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/**
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* Obtain the value of a specific attribute of the Dynamic MBean.
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*
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* @param attributeName The name of the attribute to be retrieved.
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*
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* @return The requested attribute.
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*
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* @throws AttributeNotFoundException If the specified attribute is not
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* associated with this MBean.
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*/
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@Override
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public Attribute getAttribute(String attributeName)
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throws AttributeNotFoundException
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{
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// Get the jmx Client connection
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ClientConnection clientConnection = getClientConnection();
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if (clientConnection == null)
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{
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return null;
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}
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// prepare the ldap search
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try
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{
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// Perform the Ldap operation for
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// - ACI Check
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// - Loggin purpose
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InternalSearchOperation op = searchMBeanConfigEntry(clientConnection);
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// BUG : op may be null
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ResultCode rc = op.getResultCode();
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if (rc != ResultCode.SUCCESS) {
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LocalizableMessage message = ERR_CONFIG_JMX_CANNOT_GET_ATTRIBUTE.
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get(attributeName, configEntryDN, op.getErrorMessage());
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throw new AttributeNotFoundException(message.toString());
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}
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return getJmxAttribute(attributeName);
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}
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catch (AttributeNotFoundException e)
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{
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throw e;
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}
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catch (Exception e)
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{
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logger.traceException(e);
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LocalizableMessage message = ERR_CONFIG_JMX_ATTR_NO_ATTR.get(configEntryDN, attributeName);
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logger.error(message);
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throw new AttributeNotFoundException(message.toString());
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}
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}
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/**
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* Set the value of a specific attribute of the Dynamic MBean. In this case,
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* it will always throw {@code InvalidAttributeValueException} because setting
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* attribute values over JMX is currently not allowed.
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*
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* @param attribute The identification of the attribute to be set and the
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* value it is to be set to.
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*
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* @throws AttributeNotFoundException If the specified attribute is not
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* associated with this MBean.
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*
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* @throws InvalidAttributeValueException If the provided value is not
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* acceptable for this MBean.
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*/
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@Override
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public void setAttribute(javax.management.Attribute attribute)
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throws AttributeNotFoundException, InvalidAttributeValueException
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{
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throw new InvalidAttributeValueException();
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}
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/**
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* Get the values of several attributes of the Dynamic MBean.
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*
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* @param attributes A list of the attributes to be retrieved.
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*
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* @return The list of attributes retrieved.
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*/
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@Override
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public AttributeList getAttributes(String[] attributes)
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{
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// Get the jmx Client connection
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ClientConnection clientConnection = getClientConnection();
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if (clientConnection == null)
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{
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return null;
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}
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// Perform the Ldap operation for
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// - ACI Check
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// - Loggin purpose
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InternalSearchOperation op = searchMBeanConfigEntry(clientConnection);
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if (op == null)
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{
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return null;
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}
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ResultCode rc = op.getResultCode();
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if (rc != ResultCode.SUCCESS)
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{
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return null;
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}
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AttributeList attrList = new AttributeList(attributes.length);
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for (String name : attributes)
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{
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try
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{
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Attribute attr = getJmxAttribute(name);
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if (attr != null)
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{
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attrList.add(attr);
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continue;
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}
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}
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catch (Exception e)
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{
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logger.traceException(e);
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}
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Attribute attr = getJmxAttribute(name);
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if (attr != null)
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{
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attrList.add(attr);
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}
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}
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return attrList;
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}
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private InternalSearchOperation searchMBeanConfigEntry(ClientConnection clientConnection)
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{
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SearchRequest request = newSearchRequest(configEntryDN, SearchScope.BASE_OBJECT);
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if (clientConnection instanceof JmxClientConnection) {
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return ((JmxClientConnection) clientConnection).processSearch(request);
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}
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else if (clientConnection instanceof InternalClientConnection) {
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return ((InternalClientConnection) clientConnection).processSearch(request);
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}
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return null;
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}
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/**
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* Sets the values of several attributes of the Dynamic MBean.
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*
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* @param attributes A list of attributes: The identification of the
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* attributes to be set and the values they are to be set
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* to.
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*
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* @return The list of attributes that were set with their new values. In
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* this case, the list will always be empty because we do not support
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* setting attribute values over JMX.
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*/
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@Override
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public AttributeList setAttributes(AttributeList attributes)
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{
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return new AttributeList();
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}
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/**
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* Allows an action to be invoked on the Dynamic MBean.
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*
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* @param actionName The name of the action to be invoked.
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* @param params An array containing the parameters to be set when the
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* action is invoked.
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* @param signature An array containing the signature of the action. The
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* class objects will be loaded through the same class
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* loader as the one used for loading the MBean on which
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* action is invoked.
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*
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* @return The object returned by the action, which represents the result of
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* invoking the action on the MBean specified.
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*
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* @throws MBeanException If a problem is encountered while invoking the
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* method.
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*/
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@Override
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public Object invoke(String actionName, Object[] params, String[] signature)
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throws MBeanException
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{
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// If we've gotten here, then there is no such method so throw an exception.
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StringBuilder buffer = new StringBuilder();
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buffer.append(actionName);
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buffer.append("(");
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Utils.joinAsString(buffer, ", ", (Object[]) signature);
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buffer.append(")");
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LocalizableMessage message = ERR_CONFIG_JMX_NO_METHOD.get(buffer, configEntryDN);
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throw new MBeanException(
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new DirectoryException(ResultCode.NO_SUCH_OPERATION, message));
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}
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|
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/**
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* Provides the exposed attributes and actions of the Dynamic MBean using an
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* MBeanInfo object.
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*
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* @return An instance of {@code MBeanInfo} allowing all attributes and
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* actions exposed by this Dynamic MBean to be retrieved.
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*/
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@Override
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public MBeanInfo getMBeanInfo()
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{
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ClientConnection clientConnection = getClientConnection();
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if (clientConnection == null)
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{
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return new MBeanInfo(CLASS_NAME, null, null, null, null, null);
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}
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List<MBeanAttributeInfo> attrs = new ArrayList<>();
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for (MonitorProvider<? extends MonitorProviderCfg> monitor : monitorProviders)
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{
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for (org.opends.server.types.Attribute a : monitor.getMonitorData())
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{
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attrs.add(new MBeanAttributeInfo(a.getAttributeDescription().getNameOrOID(), String.class.getName(),
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null, true, false, false));
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}
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}
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MBeanAttributeInfo[] mBeanAttributes = attrs.toArray(new MBeanAttributeInfo[attrs.size()]);
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List<MBeanNotificationInfo> notifications = new ArrayList<>();
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for (AlertGenerator generator : alertGenerators)
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{
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String className = generator.getClassName();
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Map<String, String> alerts = generator.getAlerts();
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for (Entry<String, String> mapEntry : alerts.entrySet())
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{
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String[] types = { mapEntry.getKey() };
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String description = mapEntry.getValue();
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notifications.add(new MBeanNotificationInfo(types, className, description));
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}
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}
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MBeanConstructorInfo[] mBeanConstructors = new MBeanConstructorInfo[0];
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MBeanOperationInfo[] mBeanOperations = new MBeanOperationInfo[0];
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MBeanNotificationInfo[] mBeanNotifications = new MBeanNotificationInfo[notifications.size()];
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notifications.toArray(mBeanNotifications);
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return new MBeanInfo(CLASS_NAME,
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"Configurable Attributes for " + configEntryDN,
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mBeanAttributes, mBeanConstructors, mBeanOperations,
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mBeanNotifications);
|
}
|
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/**
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* Get the client JMX connection to use. Returns null if an Exception is
|
* caught or if the AccessControlContext subject is null.
|
*
|
* @return The JmxClientConnection.
|
*/
|
private ClientConnection getClientConnection()
|
{
|
java.security.AccessControlContext acc = java.security.AccessController.getContext();
|
try
|
{
|
javax.security.auth.Subject subject = javax.security.auth.Subject.getSubject(acc);
|
if (subject != null)
|
{
|
Set<?> privateCreds = subject.getPrivateCredentials(Credential.class);
|
return ((Credential) privateCreds.iterator().next()).getClientConnection();
|
}
|
}
|
catch (Exception e)
|
{
|
}
|
return null;
|
}
|
}
|
