/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2009 Sun Microsystems, Inc.
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* Portions Copyright 2011-2014 ForgeRock AS
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*/
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package org.opends.server.protocols.jmx;
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import java.net.InetAddress;
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import java.util.Collection;
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import java.util.LinkedList;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicLong;
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import javax.management.Notification;
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import javax.management.NotificationListener;
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import javax.management.remote.JMXConnectionNotification;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.i18n.LocalizableMessageBuilder;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.opends.server.api.ClientConnection;
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import org.opends.server.api.ConnectionHandler;
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import org.opends.server.core.*;
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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.types.*;
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import static org.opends.messages.ProtocolMessages.*;
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/**
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* This class defines the set of methods and structures that must be implemented
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* by a Directory Server client connection.
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*/
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public class JmxClientConnection
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extends ClientConnection implements NotificationListener
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{
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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/** The message ID counter to use for jmx connections. */
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private final AtomicInteger nextMessageID;
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/** The operation ID counter to use for operations on this connection. */
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private final AtomicLong nextOperationID;
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/** The empty operation list for this connection. */
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private final LinkedList<Operation> operationList;
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/** The connection ID for this client connection. */
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private final long connectionID;
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/** The JMX connection ID for this client connection. */
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protected String jmxConnectionID;
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/** The reference to the connection handler that accepted this connection. */
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private final JmxConnectionHandler jmxConnectionHandler;
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/** Indicate that the disconnect process is started. */
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private boolean disconnectStarted;
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/**
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* Creates a new Jmx client connection that will be authenticated as
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* as the specified user.
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*
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* @param jmxConnectionHandler
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* The connection handler on which we should be registered
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* @param authInfo
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* the User authentication info
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*/
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public JmxClientConnection(JmxConnectionHandler jmxConnectionHandler,
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AuthenticationInfo authInfo)
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{
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super();
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nextMessageID = new AtomicInteger(1);
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nextOperationID = new AtomicLong(0);
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this.jmxConnectionHandler = jmxConnectionHandler;
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jmxConnectionHandler.registerClientConnection(this);
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setAuthenticationInfo(authInfo);
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connectionID = DirectoryServer.newConnectionAccepted(this);
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if (connectionID < 0)
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{
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disconnect(DisconnectReason.ADMIN_LIMIT_EXCEEDED, true,
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ERR_CONNHANDLER_REJECTED_BY_SERVER.get());
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}
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operationList = new LinkedList<Operation>();
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// Register the Jmx Notification listener (this)
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jmxConnectionHandler.getRMIConnector().jmxRmiConnectorNoClientCertificate
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.addNotificationListener(this, null, null);
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}
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/** {@inheritDoc} */
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@Override
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public void handleNotification(Notification notif, Object handback)
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{
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// We don't have the expected notification
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if ( ! (notif instanceof JMXConnectionNotification))
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{
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return ;
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}
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JMXConnectionNotification jcn = (JMXConnectionNotification) notif;
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// The only handled notifications are CLOSED and FAILED
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if (!JMXConnectionNotification.CLOSED.equals(jcn.getType())
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&& !JMXConnectionNotification.FAILED.equals(jcn.getType()))
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{
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return;
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}
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// Check if the closed connection corresponds to the current connection
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if (!jcn.getConnectionId().equals(jmxConnectionID))
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{
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return;
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}
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// Ok, we can perform the unbind: call finalize
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disconnect(DisconnectReason.CLIENT_DISCONNECT, false, null);
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}
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/**
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* Retrieves the operation ID that should be used for the next Jmx
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* operation.
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*
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* @return The operation ID that should be used for the next Jmx
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* operation.
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*/
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public long nextOperationID()
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{
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long opID = nextOperationID.getAndIncrement();
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if (opID < 0)
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{
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synchronized (nextOperationID)
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{
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if (nextOperationID.get() < 0)
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{
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nextOperationID.set(1);
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return 0;
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}
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else
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{
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return nextOperationID.getAndIncrement();
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}
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}
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}
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return opID;
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}
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/**
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* Retrieves the message ID that should be used for the next Jmx
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* operation.
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*
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* @return The message ID that should be used for the next Jmx
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* operation.
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*/
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public int nextMessageID()
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{
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int msgID = nextMessageID.getAndIncrement();
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if (msgID < 0)
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{
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synchronized (nextMessageID)
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{
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if (nextMessageID.get() < 0)
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{
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nextMessageID.set(2);
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return 1;
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}
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else
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{
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return nextMessageID.getAndIncrement();
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}
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}
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}
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return msgID;
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}
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/**
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* Retrieves the unique identifier that has been assigned to this connection.
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*
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* @return The unique identifier that has been assigned to this connection.
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*/
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@Override
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public long getConnectionID()
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{
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return connectionID;
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}
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/**
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* Retrieves the connection handler that accepted this client connection.
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*
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* @return The connection handler that accepted this client connection.
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*/
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@Override
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public ConnectionHandler<?> getConnectionHandler()
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{
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return jmxConnectionHandler;
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}
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/**
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* Retrieves the protocol that the client is using to communicate with the
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* Directory Server.
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*
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* @return The protocol that the client is using to communicate with the
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* Directory Server.
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*/
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@Override
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public String getProtocol()
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{
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return "jmx";
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}
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/**
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* Retrieves a string representation of the address of the client.
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*
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* @return A string representation of the address of the client.
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*/
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@Override
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public String getClientAddress()
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{
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return "jmx";
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}
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/**
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* Retrieves the port number for this connection on the client system.
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*
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* @return The port number for this connection on the client system.
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*/
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@Override
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public int getClientPort()
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{
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return -1;
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}
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/**
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* Retrieves a string representation of the address on the server to which the
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* client connected.
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*
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* @return A string representation of the address on the server to which the
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* client connected.
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*/
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@Override
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public String getServerAddress()
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{
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return "jmx";
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}
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/**
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* Retrieves the port number for this connection on the server
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* system if available.
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*
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* @return The port number for this connection on the server system
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* or -1 if there is no server port associated with this
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* connection (e.g. internal client).
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*/
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@Override
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public int getServerPort()
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{
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return -1;
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}
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/**
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* Retrieves the <CODE>java.net.InetAddress</CODE> associated with the remote
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* client system.
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*
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* @return The <CODE>java.net.InetAddress</CODE> associated with the remote
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* client system. It may be <CODE>null</CODE> if the client is not
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* connected over an IP-based connection.
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*/
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@Override
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public InetAddress getRemoteAddress()
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{
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return null;
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}
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/**
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* Retrieves the <CODE>java.net.InetAddress</CODE> for the Directory Server
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* system to which the client has established the connection.
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*
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* @return The <CODE>java.net.InetAddress</CODE> for the Directory Server
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* system to which the client has established the connection. It may
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* be <CODE>null</CODE> if the client is not connected over an
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* IP-based connection.
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*/
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@Override
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public InetAddress getLocalAddress()
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{
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return null;
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}
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/** {@inheritDoc} */
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@Override
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public boolean isConnectionValid()
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{
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return !disconnectStarted;
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}
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/**
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* Indicates whether this client connection is currently using a secure
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* mechanism to communicate with the server. Note that this may change over
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* time based on operations performed by the client or server (e.g., it may go
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* from <CODE>false</CODE> to <CODE>true</CODE> if the client uses the
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* StartTLS extended operation).
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*
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* @return <CODE>true</CODE> if the client connection is currently using a
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* secure mechanism to communicate with the server, or
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* <CODE>false</CODE> if not.
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*/
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@Override
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public boolean isSecure()
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{
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return false;
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}
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/**
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* Retrieves the human-readable name of the security mechanism that is used to
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* protect communication with this client.
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*
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* @return The human-readable name of the security mechanism that is used to
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* protect communication with this client, or <CODE>null</CODE> if no
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* security is in place.
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*/
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public String getSecurityMechanism()
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{
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return "NULL";
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}
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/**
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* Sends a response to the client based on the information in the provided
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* operation.
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*
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* @param operation The operation for which to send the response.
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*/
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@Override
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public void sendResponse(Operation operation)
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{
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// There will not be any response sent by this method, since there is not an
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// actual connection.
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}
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/**
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* Processes an Jmx search operation with the provided information.
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*
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* @param request The search request.
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* @return A reference to the internal search operation that was processed
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* and contains information about the result of the processing as
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* well as lists of the matching entries and search references.
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*/
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public InternalSearchOperation processSearch(SearchRequest request)
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{
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InternalSearchOperation searchOperation =
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new InternalSearchOperation(this, nextOperationID(), nextMessageID(), request);
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if (! hasPrivilege(Privilege.JMX_READ, null))
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{
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LocalizableMessage message = ERR_JMX_SEARCH_INSUFFICIENT_PRIVILEGES.get();
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searchOperation.setErrorMessage(new LocalizableMessageBuilder(message));
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searchOperation.setResultCode(ResultCode.INSUFFICIENT_ACCESS_RIGHTS) ;
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}
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else
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{
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searchOperation.run();
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}
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return searchOperation;
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}
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/**
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* Sends the provided search result entry to the client.
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*
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* @param searchOperation The search operation with which the entry is
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* associated.
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* @param searchEntry The search result entry to be sent to the client.
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*
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* @throws DirectoryException If a problem occurs while attempting to send
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* the entry to the client and the search should
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* be terminated.
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*/
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@Override
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public void sendSearchEntry(SearchOperation searchOperation,
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SearchResultEntry searchEntry)
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throws DirectoryException
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{
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((InternalSearchOperation) searchOperation).addSearchEntry(searchEntry);
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}
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/**
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* Sends the provided search result reference to the client.
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*
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* @param searchOperation The search operation with which the reference is
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* associated.
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* @param searchReference The search result reference to be sent to the
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* client.
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*
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* @return <CODE>true</CODE> if the client is able to accept referrals, or
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* <CODE>false</CODE> if the client cannot handle referrals and no
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* more attempts should be made to send them for the associated
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* search operation.
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*
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* @throws DirectoryException If a problem occurs while attempting to send
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* the reference to the client and the search
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* should be terminated.
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*/
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@Override
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public boolean sendSearchReference(SearchOperation searchOperation,
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SearchResultReference searchReference)
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throws DirectoryException
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{
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((InternalSearchOperation)
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searchOperation).addSearchReference(searchReference);
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return true;
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}
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/**
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* Sends the provided intermediate response message to the client.
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*
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* @param intermediateResponse The intermediate response message to be sent.
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*
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* @return <CODE>true</CODE> if processing on the associated operation should
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* continue, or <CODE>false</CODE> if not.
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*/
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@Override
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protected boolean sendIntermediateResponseMessage(
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IntermediateResponse intermediateResponse)
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{
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// FIXME -- Do we need to support Jmx intermediate responses? If so,
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// then implement this.
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return false;
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}
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/**
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* Closes the connection to the client, optionally sending it a message
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* indicating the reason for the closure. Note that the ability to send a
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* notice of disconnection may not be available for all protocols or under all
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* circumstances.
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*
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* @param disconnectReason The disconnect reason that provides the generic
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* cause for the disconnect.
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* @param sendNotification Indicates whether to try to provide notification
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* to the client that the connection will be closed.
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* @param message The message to send to the client. It may be
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* <CODE>null</CODE> if no notification is to be
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* sent.
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*/
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@Override
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public void disconnect(DisconnectReason disconnectReason,
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boolean sendNotification,
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LocalizableMessage message)
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{
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// we are already performing a disconnect
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if (disconnectStarted)
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{
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return;
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}
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disconnectStarted = true ;
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jmxConnectionHandler.unregisterClientConnection(this);
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finalizeConnectionInternal();
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// unbind the underlying connection
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try
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{
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UnbindOperationBasis unbindOp = new UnbindOperationBasis(
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this, nextOperationID(), nextMessageID(), null);
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unbindOp.run();
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}
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catch (Exception e)
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{
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// TODO print a message ?
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logger.traceException(e);
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}
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// Call postDisconnectPlugins
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try
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{
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PluginConfigManager pluginManager =
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DirectoryServer.getPluginConfigManager();
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pluginManager.invokePostDisconnectPlugins(this, disconnectReason,
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message);
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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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}
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/**
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* Retrieves the set of operations in progress for this client connection.
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* This list must not be altered by any caller.
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*
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* @return The set of operations in progress for this client connection.
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*/
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@Override
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public Collection<Operation> getOperationsInProgress()
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{
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return operationList;
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}
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/**
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* Retrieves the operation in progress with the specified message ID.
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*
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* @param messageID The message ID of the operation to retrieve.
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*
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* @return The operation in progress with the specified message ID, or
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* <CODE>null</CODE> if no such operation could be found.
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*/
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@Override
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public Operation getOperationInProgress(int messageID)
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{
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// Jmx operations will not be tracked.
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return null;
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}
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/**
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* Removes the provided operation from the set of operations in progress for
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* this client connection. Note that this does not make any attempt to
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* cancel any processing that may already be in progress for the operation.
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*
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* @param messageID The message ID of the operation to remove from the set
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* of operations in progress.
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*
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* @return <CODE>true</CODE> if the operation was found and removed from the
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* set of operations in progress, or <CODE>false</CODE> if not.
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*/
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@Override
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public boolean removeOperationInProgress(int messageID)
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{
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// No implementation is required, since Jmx operations will not be
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// tracked.
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return false;
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}
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/**
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* Attempts to cancel the specified operation.
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*
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* @param messageID The message ID of the operation to cancel.
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* @param cancelRequest An object providing additional information about how
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* the cancel should be processed.
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*
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* @return A cancel result that either indicates that the cancel was
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* successful or provides a reason that it was not.
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*/
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@Override
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public CancelResult cancelOperation(int messageID,
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CancelRequest cancelRequest)
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{
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// Jmx operations cannot be cancelled.
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// TODO: i18n
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return new CancelResult(ResultCode.CANNOT_CANCEL,
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LocalizableMessage.raw("Jmx operations cannot be cancelled"));
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}
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/**
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* Attempts to cancel all operations in progress on this connection.
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*
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* @param cancelRequest An object providing additional information about how
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* the cancel should be processed.
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*/
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@Override
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public void cancelAllOperations(CancelRequest cancelRequest)
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{
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// No implementation is required since Jmx operations cannot be
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// cancelled.
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}
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/**
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* Attempts to cancel all operations in progress on this connection except the
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* operation with the specified message ID.
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*
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* @param cancelRequest An object providing additional information about how
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* the cancel should be processed.
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* @param messageID The message ID of the operation that should not be
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* canceled.
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*/
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@Override
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public void cancelAllOperationsExcept(CancelRequest cancelRequest,
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int messageID)
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{
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// No implementation is required since Jmx operations cannot be
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// cancelled.
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}
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/** {@inheritDoc} */
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@Override
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public String getMonitorSummary()
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{
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StringBuilder buffer = new StringBuilder();
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buffer.append("connID=\"");
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buffer.append(connectionID);
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buffer.append("\" connectTime=\"");
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buffer.append(getConnectTimeString());
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buffer.append("\" jmxConnID=\"");
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buffer.append(jmxConnectionID);
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buffer.append("\" authDN=\"");
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DN authDN = getAuthenticationInfo().getAuthenticationDN();
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if (authDN != null)
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{
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authDN.toString(buffer);
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}
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buffer.append("\"");
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return buffer.toString();
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}
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/**
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* Appends a string representation of this client connection to the provided
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* buffer.
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*
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* @param buffer The buffer to which the information should be appended.
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*/
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@Override
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public void toString(StringBuilder buffer)
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{
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buffer.append("JmxClientConnection(connID=");
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buffer.append(connectionID);
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buffer.append(", authDN=\"");
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buffer.append(getAuthenticationInfo().getAuthenticationDN());
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buffer.append("\")");
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}
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/**
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* Called by the Gc when the object is garbage collected
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* Release the cursor in case the iterator was badly used and releaseCursor
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* was never called.
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*/
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@Override
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protected void finalize()
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{
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disconnect(DisconnectReason.OTHER, false, null);
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}
|
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/**
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* To be implemented.
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*
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* @return number of operations performed on this connection
|
*/
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@Override
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public long getNumberOfOperations() {
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// JMX connections will not be limited.
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return 0;
|
}
|
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/** {@inheritDoc} */
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@Override
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public int getSSF() {
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return 0;
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}
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}
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