/*
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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 2006-2008 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.tasks;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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import org.forgerock.opendj.config.server.ConfigException;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.opendj.ldap.ModificationType;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.opends.messages.TaskMessages;
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import org.opends.server.admin.server.ServerManagementContext;
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import org.opends.server.admin.std.server.BackendCfg;
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import org.opends.server.admin.std.server.RootCfg;
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import org.opends.server.api.Backend;
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import org.opends.server.config.ConfigEntry;
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import org.opends.server.config.StringConfigAttribute;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.core.ModifyOperation;
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import org.opends.server.protocols.ldap.LDAPAttribute;
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import org.opends.server.protocols.ldap.LDAPModification;
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import org.opends.server.types.Attribute;
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import org.opends.server.types.DN;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.RawModification;
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import org.opends.server.util.CollectionUtils;
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import org.opends.server.util.ServerConstants;
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import static org.opends.messages.ConfigMessages.*;
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import static org.opends.messages.ToolMessages.*;
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import static org.opends.server.config.ConfigConstants.*;
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import static org.opends.server.protocols.internal.InternalClientConnection.*;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* This class defines a number of static utility methods for server tasks.
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*/
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public class TaskUtils
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{
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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/**
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* Get the backend ID of a backend configuration entry.
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*
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* @param configEntry A backend configuration entry.
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* @return The backend ID.
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*/
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public static String getBackendID(ConfigEntry configEntry)
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{
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try
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{
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StringConfigAttribute idStub =
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new StringConfigAttribute(
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ATTR_BACKEND_ID,
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INFO_CONFIG_BACKEND_ATTR_DESCRIPTION_BACKEND_ID.get(),
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true, false, true);
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StringConfigAttribute idAttr =
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(StringConfigAttribute) configEntry.getConfigAttribute(idStub);
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return idAttr.activeValue();
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}
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catch (org.opends.server.config.ConfigException ce)
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{
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logger.error(ERR_CANNOT_DETERMINE_BACKEND_ID, configEntry.getDN(), ce.getMessage());
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return null;
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}
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catch (Exception e)
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{
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logger.error(ERR_CANNOT_DETERMINE_BACKEND_ID, configEntry.getDN(), getExceptionMessage(e));
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return null;
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}
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}
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/**
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* Get all the backend configuration entries defined in the server mapped
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* by their backend ID.
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* @return A map of backend IDs to their corresponding configuration entries.
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*/
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public static Map<String,ConfigEntry> getBackendConfigEntries()
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{
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Map<String,ConfigEntry> configEntries = new HashMap<>();
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// FIXME The error messages should not be the LDIF import messages
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// Get the base entry for all backend configuration.
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DN backendBaseDN;
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try
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{
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backendBaseDN = DN.valueOf(DN_BACKEND_BASE);
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}
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catch (DirectoryException de)
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{
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logger.error(ERR_CANNOT_DECODE_BACKEND_BASE_DN, DN_BACKEND_BASE, de.getMessageObject());
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return configEntries;
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}
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catch (Exception e)
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{
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logger.error(ERR_CANNOT_DECODE_BACKEND_BASE_DN, DN_BACKEND_BASE, getExceptionMessage(e));
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return configEntries;
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}
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ConfigEntry baseEntry;
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try
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{
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baseEntry = DirectoryServer.getConfigEntry(backendBaseDN);
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}
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catch (ConfigException ce)
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{
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logger.error(ERR_CANNOT_RETRIEVE_BACKEND_BASE_ENTRY, DN_BACKEND_BASE, ce.getMessage());
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return configEntries;
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}
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catch (Exception e)
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{
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logger.error(ERR_CANNOT_RETRIEVE_BACKEND_BASE_ENTRY, DN_BACKEND_BASE, getExceptionMessage(e));
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return configEntries;
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}
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// Iterate through the immediate children, attempting to parse them as
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// backends.
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for (ConfigEntry configEntry : baseEntry.getChildren().values())
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{
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// Get the backend ID attribute from the entry. If there isn't one, then
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// skip the entry.
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String backendID;
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try
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{
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StringConfigAttribute idStub =
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new StringConfigAttribute(
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ATTR_BACKEND_ID,
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INFO_CONFIG_BACKEND_ATTR_DESCRIPTION_BACKEND_ID.get(),
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true, false, true);
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StringConfigAttribute idAttr =
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(StringConfigAttribute) configEntry.getConfigAttribute(idStub);
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if (idAttr == null)
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{
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continue;
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}
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else
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{
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backendID = idAttr.activeValue();
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}
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}
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catch (org.opends.server.config.ConfigException ce)
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{
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logger.error(ERR_CANNOT_DETERMINE_BACKEND_ID, configEntry.getDN(), ce.getMessage());
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continue;
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}
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catch (Exception e)
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{
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logger.error(ERR_CANNOT_DETERMINE_BACKEND_ID, configEntry.getDN(), getExceptionMessage(e));
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continue;
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}
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configEntries.put(backendID, configEntry);
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}
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return configEntries;
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}
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/**
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* Get the configuration entry for a given backend.
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*
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* @param backend The backend whose configuration entry is wanted.
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* @return The configuration entry of the backend, or null if it could not
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* be found.
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*/
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public static BackendCfg getConfigEntry(Backend backend)
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{
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RootCfg root = ServerManagementContext.getInstance().
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getRootConfiguration();
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try
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{
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return root.getBackend(backend.getBackendID());
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}
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catch (ConfigException e)
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{
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return null;
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}
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}
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/**
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* Enables a backend using an internal modify operation on the
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* backend configuration entry.
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*
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* @param backendID Identifies the backend to be enabled.
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* @throws DirectoryException If the internal modify operation failed.
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*/
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public static void enableBackend(String backendID)
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throws DirectoryException
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{
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DN configEntryDN;
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RootCfg root = ServerManagementContext.getInstance().getRootConfiguration();
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try
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{
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BackendCfg cfg = root.getBackend(backendID);
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configEntryDN = cfg.dn();
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}
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catch (ConfigException e)
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{
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throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
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e.getMessageObject(), e);
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}
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LDAPAttribute a = new LDAPAttribute(ATTR_BACKEND_ENABLED, ServerConstants.TRUE_VALUE);
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LDAPModification m = new LDAPModification(ModificationType.REPLACE, a);
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ArrayList<RawModification> modList = CollectionUtils.<RawModification> newArrayList(m);
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String backendDNString = configEntryDN.toString();
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ByteString rawEntryDN = ByteString.valueOf(backendDNString);
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ModifyOperation internalModify = getRootConnection().processModify(rawEntryDN, modList);
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ResultCode resultCode = internalModify.getResultCode();
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if (resultCode != ResultCode.SUCCESS)
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{
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LocalizableMessage message =
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TaskMessages.ERR_TASK_CANNOT_ENABLE_BACKEND.get(backendDNString);
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throw new DirectoryException(resultCode, message);
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}
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}
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/**
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* Disables a backend using an internal modify operation on the
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* backend configuration entry.
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*
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* @param backendID Identifies the backend to be disabled.
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* @throws DirectoryException If the internal modify operation failed.
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*/
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public static void disableBackend(String backendID)
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throws DirectoryException
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{
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DN configEntryDN;
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RootCfg root = ServerManagementContext.getInstance().getRootConfiguration();
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try
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{
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BackendCfg cfg = root.getBackend(backendID);
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configEntryDN = cfg.dn();
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}
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catch (ConfigException e)
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{
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throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
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e.getMessageObject(), e);
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}
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LDAPAttribute a = new LDAPAttribute(ATTR_BACKEND_ENABLED, ServerConstants.FALSE_VALUE);
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LDAPModification m = new LDAPModification(ModificationType.REPLACE, a);
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ArrayList<RawModification> modList = CollectionUtils.<RawModification> newArrayList(m);
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String backendDNString = configEntryDN.toString();
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ByteString rawEntryDN = ByteString.valueOf(backendDNString);
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ModifyOperation internalModify = getRootConnection().processModify(rawEntryDN, modList);
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ResultCode resultCode = internalModify.getResultCode();
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if (resultCode != ResultCode.SUCCESS)
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{
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LocalizableMessage message =
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TaskMessages.ERR_TASK_CANNOT_DISABLE_BACKEND.get(backendDNString);
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throw new DirectoryException(resultCode, message);
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}
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}
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/**
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* Get the single boolean value of an entry attribute that is defined in the
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* schema as a single valued boolean attribute, and that is not expected to
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* have attribute options.
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*
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* @param attrList The attribute value of the entry attribute.
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* @param defaultValue The default value to be returned if there is no
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* recognizable boolean attribute value.
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* @return The boolean value of the attribute, or the provided default value
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* if there is no value.
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*/
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public static boolean getBoolean(List<Attribute> attrList,
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boolean defaultValue)
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{
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if (attrList == null || attrList.isEmpty())
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{
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return defaultValue;
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}
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for (Attribute a : attrList)
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{
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for (ByteString v : a)
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{
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String valueString = toLowerCase(v.toString());
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if (valueString.equals("true") || valueString.equals("yes") ||
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valueString.equals("on") || valueString.equals("1"))
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{
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return true;
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}
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else if (valueString.equals("false") || valueString.equals("no") ||
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valueString.equals("off") || valueString.equals("0"))
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{
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return false;
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}
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}
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}
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return defaultValue;
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}
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/**
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* Get the multiple string values of an entry attribute that is defined in the
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* schema as a multi-valued string attribute, and that is not expected to
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* have attribute options.
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*
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* @param attrList The attribute values of the entry attribute.
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* @return The string values of the attribute, empty if there are none.
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*/
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public static ArrayList<String> getMultiValueString(List<Attribute> attrList)
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{
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ArrayList<String> valueStrings = new ArrayList<>();
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if (attrList != null && !attrList.isEmpty())
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{
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Attribute attr = attrList.get(0);
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if (!attr.isEmpty())
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{
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for (ByteString value : attr)
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{
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valueStrings.add(value.toString());
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}
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}
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}
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return valueStrings;
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}
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/**
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* Get the single string value of an entry attribute that is defined in the
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* schema as a single valued string attribute, and that is not expected to
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* have attribute options.
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*
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* @param attrList The attribute value of the entry attribute.
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* @return The string value of the attribute, or null if there is none.
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*/
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public static String getSingleValueString(List<Attribute> attrList)
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{
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if (attrList != null && !attrList.isEmpty())
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{
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Attribute attr = attrList.get(0);
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if (!attr.isEmpty())
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{
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return attr.iterator().next().toString();
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}
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}
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return null;
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}
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/**
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* Get the single integer value of an entry attribute that is defined in the
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* schema as a single valued integer attribute, and that is not expected to
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* have attribute options.
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*
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* @param attrList The attribute value of the entry attribute.
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* @param defaultValue The default value to be returned if there is no
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* recognizable integer attribute value.
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* @return The integer value of the attribute, or the provided default value
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* if there is no value.
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*/
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public static int getSingleValueInteger(List<Attribute> attrList,
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int defaultValue)
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{
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if (attrList != null && !attrList.isEmpty())
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{
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Attribute attr = attrList.get(0);
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if (!attr.isEmpty())
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{
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try
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{
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return Integer.parseInt(attr.iterator().next().toString());
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}
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catch (NumberFormatException 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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return defaultValue;
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}
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}
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