/*
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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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* Copyright 2006-2010 Sun Microsystems, Inc.
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* Portions Copyright 2014-2015 ForgeRock AS.
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*/
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package org.opends.server.monitors;
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import java.util.List;
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import java.util.TreeMap;
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import org.forgerock.opendj.config.server.ConfigException;
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import org.opends.server.admin.std.server.ClientConnectionMonitorProviderCfg;
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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.api.MonitorProvider;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.types.Attribute;
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import org.opends.server.types.AttributeBuilder;
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import org.opends.server.types.InitializationException;
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/**
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* This class defines a Directory Server monitor provider that can be
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* used to obtain information about the client connections established
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* to the server. Note that the information reported is obtained with
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* little or no locking, so it may not be entirely consistent,
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* especially for active connections.
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*/
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public class ClientConnectionMonitorProvider extends
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MonitorProvider<ClientConnectionMonitorProviderCfg>
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{
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/**
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* The connection handler associated with this monitor, or null if all
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* connection handlers should be monitored.
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*/
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private final ConnectionHandler<?> handler;
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/**
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* Creates an instance of this monitor provider.
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*/
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public ClientConnectionMonitorProvider()
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{
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// This will monitor all connection handlers.
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this.handler = null;
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}
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/**
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* Creates an instance of this monitor provider.
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*
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* @param handler
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* to which the monitor provider is associated.
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*/
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public ClientConnectionMonitorProvider(ConnectionHandler handler)
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{
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this.handler = handler;
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}
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/** {@inheritDoc} */
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@Override
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public void initializeMonitorProvider(
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ClientConnectionMonitorProviderCfg configuration)
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throws ConfigException, InitializationException
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{
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// No initialization is required.
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}
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/**
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* Retrieves the name of this monitor provider. It should be unique
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* among all monitor providers, including all instances of the same
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* monitor provider.
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*
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* @return The name of this monitor provider.
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*/
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@Override
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public String getMonitorInstanceName()
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{
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if (handler == null)
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{
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return "Client Connections";
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}
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else
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{
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// Client connections of a connection handler
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return "Client Connections" + ",cn="
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+ handler.getConnectionHandlerName();
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}
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}
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/**
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* Retrieves a set of attributes containing monitor data that should
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* be returned to the client if the corresponding monitor entry is
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* requested.
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*
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* @return A set of attributes containing monitor data that should be
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* returned to the client if the corresponding monitor entry
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* is requested.
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*/
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@Override
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public List<Attribute> getMonitorData()
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{
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// Re-order the connections by connection ID.
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TreeMap<Long, ClientConnection> connMap = new TreeMap<>();
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if (handler == null)
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{
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// Get information about all the available connections.
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for (ConnectionHandler<?> hdl : DirectoryServer.getConnectionHandlers())
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{
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// FIXME: connections from different handlers could have the same ID.
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for (ClientConnection conn : hdl.getClientConnections())
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{
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connMap.put(conn.getConnectionID(), conn);
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}
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}
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}
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else
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{
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for (ClientConnection conn : handler.getClientConnections())
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{
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connMap.put(conn.getConnectionID(), conn);
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}
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}
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AttributeBuilder builder = new AttributeBuilder("connection");
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for (ClientConnection conn : connMap.values())
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{
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builder.add(conn.getMonitorSummary());
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}
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return builder.toAttributeList();
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}
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}
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