/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying 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 2006-2008 Sun Microsystems, Inc.
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*/
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package org.opends.server.monitors;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.TreeMap;
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import org.opends.server.admin.std.server.ConnectionHandlerCfg;
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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.config.ConfigException;
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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.AttributeType;
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import org.opends.server.types.AttributeValue;
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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 used to
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* obtain information about the client connections established to the server.
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* Note that the information reported is obtained with little or no locking, so
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* it may not be entirely consistent, especially for active connections.
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*/
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public class ClientConnectionMonitorProvider
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extends MonitorProvider<ClientConnectionMonitorProviderCfg>
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{
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private 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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super("Client Connection Monitor Provider");
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// No initialization should be performed here.
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}
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/**
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* Creates an instance of this monitor provider.
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* @param handler 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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super("Client Connection Monitor Provider");
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this.handler=handler;
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// No initialization should be performed here.
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}
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/**
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* {@inheritDoc}
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*/
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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 among all
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* monitor providers, including all instances of the same 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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public String getMonitorInstanceName()
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{
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if (this.handler==null) {
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return "Client Connections";
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}
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else {
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// Client connections of a connection handler
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return "Client Connections"+",cn="+
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this.handler.getConnectionHandlerName();
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}
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}
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/**
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* Retrieves the length of time in milliseconds that should elapse between
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* calls to the <CODE>updateMonitorData()</CODE> method. A negative or zero
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* return value indicates that the <CODE>updateMonitorData()</CODE> method
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* should not be periodically invoked.
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*
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* @return The length of time in milliseconds that should elapse between
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* calls to the <CODE>updateMonitorData()</CODE> method.
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*/
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public long getUpdateInterval()
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{
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// This monitor does not need to run periodically.
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return 0;
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}
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/**
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* Performs any processing periodic processing that may be desired to update
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* the information associated with this monitor. Note that best-effort
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* attempts will be made to ensure that calls to this method come
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* <CODE>getUpdateInterval()</CODE> milliseconds apart, but no guarantees will
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* be made.
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*/
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public void updateMonitorData()
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{
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// This monitor does not need to run periodically.
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return;
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}
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/**
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* Retrieves a set of attributes containing monitor data that should be
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* returned to the client if the corresponding monitor entry is 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 is
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* requested.
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*/
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public ArrayList<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 =
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new TreeMap<Long,ClientConnection>();
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if (this.handler==null) {
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// Get information about all the available connections.
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ArrayList<Collection<ClientConnection>> connCollections =
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new ArrayList<Collection<ClientConnection>>();
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for (ConnectionHandler<?> hdl : DirectoryServer.getConnectionHandlers())
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{
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ConnectionHandler<? extends ConnectionHandlerCfg> connHandler =
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(ConnectionHandler<? extends ConnectionHandlerCfg>) hdl;
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connCollections.add(connHandler.getClientConnections());
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}
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for (Collection<ClientConnection> collection : connCollections)
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{
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for (ClientConnection conn : collection)
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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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Collection<ClientConnection> collection =
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this.handler.getClientConnections();
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for (ClientConnection conn : collection) {
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connMap.put(conn.getConnectionID(), conn);
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}
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}
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AttributeType attrType = DirectoryServer
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.getDefaultAttributeType("connection");
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AttributeBuilder builder = new AttributeBuilder(attrType);
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for (ClientConnection conn : connMap.values())
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{
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builder.add(new AttributeValue(attrType, conn.getMonitorSummary()));
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}
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ArrayList<Attribute> attrs = new ArrayList<Attribute>(2);
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attrs.add(builder.toAttribute());
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return attrs;
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}
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}
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