/*
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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 2008-2010 Sun Microsystems, Inc.
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* Portions copyright 2011 ForgeRock AS
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*/
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package org.opends.server.replication.server;
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import static org.opends.server.loggers.debug.DebugLogger.debugEnabled;
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import static org.opends.server.loggers.debug.DebugLogger.getTracer;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import org.opends.server.admin.std.server.MonitorProviderCfg;
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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.loggers.debug.DebugTracer;
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import org.opends.server.replication.common.AssuredMode;
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import org.opends.server.replication.common.DSInfo;
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import org.opends.server.replication.common.ServerState;
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import org.opends.server.replication.common.ServerStatus;
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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.Attributes;
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import org.opends.server.types.InitializationException;
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/**
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* This class defines a server handler dedicated to the remote LDAP servers
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* connected to a remote Replication Server.
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* This class is necessary because we want to provide monitor entries for them
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* and because the monitor API only allows one entry by MonitorProvider instance
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* so that no other class can provide the monitor entry for these objects.
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*
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* One instance of this class is created for each instance of remote LDAP server
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* connected to a remote Replication Server.
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*/
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public class LightweightServerHandler
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extends MonitorProvider<MonitorProviderCfg>
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{
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// The tracer object for the debug logger.
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private static final DebugTracer TRACER = getTracer();
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private ReplicationServerHandler replServerHandler;
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private ReplicationServerDomain rsDomain;
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// The id of the RS this DS is connected to
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private int replicationServerId = -1;
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// Server id of this DS
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private int serverId = -1;
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// Generation id of this DS
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private long generationId = -1;
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// Group id of the DS;
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private byte groupId = (byte) -1;
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// Status of this DS
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private ServerStatus status = ServerStatus.INVALID_STATUS;
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// Referrals URLs this DS is exporting
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private List<String> refUrls = new ArrayList<String>();
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// Assured replication enabled on DS or not
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private boolean assuredFlag = false;
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// DS assured mode (relevant if assured replication enabled)
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private AssuredMode assuredMode = AssuredMode.SAFE_DATA_MODE;
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// DS safe data level (relevant if assured mode is safe data)
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private byte safeDataLevel = (byte) -1;
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// The prococol version
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private short protocolVersion = -1;
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private Set<String> eclInclude = new HashSet<String>();
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/**
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* Creates a new LighweightServerHandler with the provided serverid, connected
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* to the remote Replication Server represented by replServerHandler.
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*
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* @param replServerHandler The server handler of the RS this remote DS is
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* connected to
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* @param replicationServerId The serverId of the RS this remote DS is
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* connected to
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* @param serverId The serverId of this remote DS.
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* @param generationId The generation id of this remote DS.
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* @param groupId The group id of the remote DS
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* @param status The id of the remote DS
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* @param refUrls The exported referral URLs of the remote DS
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* @param assuredFlag The assured flag of the remote DS
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* @param assuredMode The assured mode of the remote DS
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* @param safeDataLevel The safe data level of the remote DS
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* @param eclInclude The list of entry attributes to be added to the ECL.
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* @param protocolVersion The protocol version supported by the remote DS.
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*/
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public LightweightServerHandler(ReplicationServerHandler replServerHandler,
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int replicationServerId, int serverId, long generationId, byte groupId,
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ServerStatus status, List<String> refUrls, boolean assuredFlag,
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AssuredMode assuredMode, byte safeDataLevel, Set<String> eclInclude,
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short protocolVersion)
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{
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this.replServerHandler = replServerHandler;
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this.rsDomain = replServerHandler.getDomain();
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this.replicationServerId = replicationServerId;
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this.serverId = serverId;
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this.generationId = generationId;
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this.groupId = groupId;
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this.status = status;
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this.refUrls = refUrls;
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this.assuredFlag = assuredFlag;
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this.assuredMode = assuredMode;
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this.safeDataLevel = safeDataLevel;
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this.eclInclude = eclInclude;
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this.protocolVersion = protocolVersion;
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if (debugEnabled())
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TRACER.debugInfo(
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"In " +
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replServerHandler.getDomain().getReplicationServer().getMonitorInstanceName()+
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" LWSH for remote server " + this.serverId +
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" connected to:" + this.replServerHandler.getMonitorInstanceName() +
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" ()");
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}
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/**
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* Creates a DSInfo structure representing this remote DS.
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* @return The DSInfo structure representing this remote DS
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*/
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public DSInfo toDSInfo()
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{
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DSInfo dsInfo = new DSInfo(serverId, replicationServerId, generationId,
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status, assuredFlag, assuredMode, safeDataLevel, groupId, refUrls,
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eclInclude, protocolVersion);
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return dsInfo;
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}
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/**
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* Get the serverID associated with this LDAP server.
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* @return The serverId.
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*/
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public int getServerId()
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{
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return serverId;
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}
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/**
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* Stop this server handler processing.
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*/
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public void startHandler()
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{
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if (debugEnabled())
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TRACER.debugInfo(
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"In " +
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replServerHandler.getDomain().getReplicationServer().getMonitorInstanceName() +
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" LWSH for remote server " + this.serverId +
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" connected to:" + this.replServerHandler.getMonitorInstanceName() +
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" start");
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DirectoryServer.deregisterMonitorProvider(getMonitorInstanceName());
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DirectoryServer.registerMonitorProvider(this);
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}
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/**
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* Stop this server handler processing.
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*/
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public void stopHandler()
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{
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if (debugEnabled())
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TRACER.debugInfo(
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"In " +
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replServerHandler.getDomain().getReplicationServer().getMonitorInstanceName() +
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" LWSH for remote server " + this.serverId +
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" connected to:" + this.replServerHandler.getMonitorInstanceName() +
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" stop");
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DirectoryServer.deregisterMonitorProvider(getMonitorInstanceName());
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void initializeMonitorProvider(MonitorProviderCfg configuration)
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throws ConfigException,InitializationException
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{
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// Nothing to do for now
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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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@Override
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public String getMonitorInstanceName()
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{
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String serverURL=""; // FIXME
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String str = serverURL + " " + String.valueOf(serverId);
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return "Undirect Replica " + str +
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",cn=" + replServerHandler.getMonitorInstanceName();
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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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@Override
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public ArrayList<Attribute> getMonitorData()
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{
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ArrayList<Attribute> attributes = new ArrayList<Attribute>();
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attributes.add(Attributes.create("server-id",
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String.valueOf(serverId)));
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attributes.add(Attributes.create("domain-name",
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rsDomain.getBaseDn()));
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attributes.add(Attributes.create("connected-to",
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replServerHandler.getMonitorInstanceName()));
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// Retrieves the topology counters
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MonitorData md = rsDomain.getDomainMonitorData();
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ServerState remoteState = md.getLDAPServerState(serverId);
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if (remoteState == null)
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{
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remoteState = new ServerState();
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}
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/* get the Server State */
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AttributeBuilder builder = new AttributeBuilder("server-state");
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for (String str : remoteState.toStringSet())
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{
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builder.add(str);
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}
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if (builder.size() == 0)
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{
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builder.add("unknown");
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}
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attributes.add(builder.toAttribute());
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// Oldest missing update
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Long approxFirstMissingDate=md.getApproxFirstMissingDate(serverId);
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if ((approxFirstMissingDate != null) && (approxFirstMissingDate>0))
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{
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Date date = new Date(approxFirstMissingDate);
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attributes.add(Attributes.create(
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"approx-older-change-not-synchronized", date.toString()));
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attributes.add(Attributes.create(
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"approx-older-change-not-synchronized-millis", String
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.valueOf(approxFirstMissingDate)));
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}
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// Missing changes
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long missingChanges = md.getMissingChanges(serverId);
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attributes.add(Attributes.create("missing-changes",
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String.valueOf(missingChanges)));
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// Replication delay
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long delay = md.getApproxDelay(serverId);
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attributes.add(Attributes.create("approximate-delay",
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String.valueOf(delay)));
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return attributes;
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}
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}
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