2 * Copyright (C) 2001, 2002 The Mir-coders group
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4 * This file is part of Mir.
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6 * Mir is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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11 * Mir is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with Mir; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 * In addition, as a special exception, The Mir-coders gives permission to link
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21 * the code of this program with any library licensed under the Apache Software License,
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22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
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23 * (or with modified versions of the above that use the same license as the above),
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24 * and distribute linked combinations including the two. You must obey the
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25 * GNU General Public License in all respects for all of the code used other than
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26 * the above mentioned libraries. If you modify this file, you may extend this
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27 * exception to your version of the file, but you are not obligated to do so.
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28 * If you do not wish to do so, delete this exception statement from your version.
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31 package mircoders.global;
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33 import mir.bundle.BasicBundleFactory;
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34 import mir.bundle.BundleFactory;
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35 import mir.bundle.CascadingBundleFactory;
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36 import mir.bundle.PropertiesFileBundleLoader;
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37 import mir.config.MirPropertiesConfiguration;
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38 import mir.entity.adapter.EntityAdapter;
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39 import mir.log.LoggerEngine;
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40 import mir.log.LoggerWrapper;
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41 import mir.misc.ConfigException;
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42 import mircoders.accesscontrol.AccessControl;
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43 import mircoders.entity.EntityComment;
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44 import mircoders.entity.EntityContent;
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45 import mircoders.entity.EntityUsers;
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46 import mircoders.localizer.MirAdminInterfaceLocalizer;
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47 import mircoders.localizer.MirCachingLocalizerDecorator;
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48 import mircoders.localizer.MirLocalizer;
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49 import mircoders.localizer.MirLocalizerExc;
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53 public class MirGlobal {
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54 static private MirLocalizer localizer;
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55 static private ProducerEngine producerEngine;
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56 static private Abuse abuse;
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57 static private MRUCache mruCache;
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58 static private AccessControl accessControl;
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59 static private Map articleOperations;
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60 static private Map commentOperations;
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61 static private Map loggedInUsers = new HashMap();
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62 static private Map loggedInUserIds = new HashMap();
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63 static private LoggerWrapper logger = new LoggerWrapper("Global");
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64 static private LoggerWrapper adminUsageLogger = new LoggerWrapper("AdminUsage");
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65 // static private ChangeEngine changeEngine = new ChangeEngine();
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66 static private DatabaseEngine databaseEngine;
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68 static private BundleFactory bundleFactory =
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69 new CascadingBundleFactory(
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70 new BasicBundleFactory(
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71 new PropertiesFileBundleLoader(
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72 config().getHome())));
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74 public synchronized static MirLocalizer localizer() {
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75 String localizerClassName;
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76 Class localizerClass;
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78 if (localizer == null ) {
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79 localizerClassName = config().getString("Mir.Localizer", "mirlocal.localizer.basic.MirBasicLocalizer");
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82 localizerClass = Class.forName(localizerClassName);
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84 catch (Throwable t) {
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85 throw new ConfigException("localizer class '" +
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86 localizerClassName + "' not found: " + t.toString());
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89 if (!(MirLocalizer.class.isAssignableFrom(localizerClass)))
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90 throw new ConfigException("localizer class '" +
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91 localizerClassName + "' is not assignable from MirLocalizer");
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94 localizer = new MirCachingLocalizerDecorator((MirLocalizer) localizerClass.newInstance());
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96 catch (Throwable t) {
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97 throw new ConfigException("localizer class '" +
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98 localizerClassName + "' cannot be instantiated: " + t.toString());
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106 * Returns a string that provides some global status information
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108 public static String getStatus() {
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109 StringBuffer result = new StringBuffer();
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111 result.append((Runtime.getRuntime().totalMemory()-Runtime.getRuntime().freeMemory())/(1024*1024));
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112 result.append("M in use, ");
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113 result.append(Thread.activeCount()).append(" threads, ");
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114 result.append(getDatabaseEngine().getStatus());
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116 return result.toString();
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119 public synchronized static Abuse abuse() {
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122 abuse = new Abuse(localizer().dataModel().adapterModel());
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124 catch (MirLocalizerExc e) {
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125 throw new RuntimeException(e.getMessage());
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133 * returns the global change engine (used to track changed files)
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135 // public static ChangeEngine getChangeEngine() {
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136 // return changeEngine;
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139 public static MirPropertiesConfiguration config() {
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140 return MirPropertiesConfiguration.instance();
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143 public synchronized static DatabaseEngine getDatabaseEngine() {
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144 if (databaseEngine==null)
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145 databaseEngine = new DatabaseEngine();
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147 return databaseEngine;
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150 public static ProducerEngine getProducerEngine() {
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151 if (producerEngine == null) {
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152 producerEngine = new ProducerEngine();
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155 return producerEngine;
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158 public static MRUCache mruCache() {
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159 synchronized(MirGlobal.class) {
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160 if (mruCache == null) {
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161 mruCache = new MRUCache();
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167 public static synchronized AccessControl accessControl() {
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168 if (accessControl == null) {
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169 accessControl=new AccessControl();
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172 return accessControl;
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175 public static void performArticleOperation(EntityUsers aUser, EntityContent anArticle, String anOperation) {
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176 MirAdminInterfaceLocalizer.MirSimpleEntityOperation operation = getArticleOperationForName(anOperation);
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179 EntityAdapter user = null;
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181 user = localizer().dataModel().adapterModel().makeEntityAdapter("user", aUser);
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183 if (operation!=null)
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186 localizer().dataModel().adapterModel().makeEntityAdapter("content", anArticle));
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188 catch (Throwable t) {
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189 t.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE));
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191 throw new RuntimeException(t.toString());
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195 public static void performCommentOperation(EntityUsers aUser, EntityComment aComment, String anOperation) {
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196 MirAdminInterfaceLocalizer.MirSimpleEntityOperation operation = getCommentOperationForName(anOperation);
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199 EntityAdapter user = null;
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201 user = localizer().dataModel().adapterModel().makeEntityAdapter("user", aUser);
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203 if (operation!=null)
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206 localizer().dataModel().adapterModel().makeEntityAdapter("comment", aComment));
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208 catch (Throwable t) {
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209 throw new RuntimeException(t.toString());
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213 private synchronized static MirAdminInterfaceLocalizer.MirSimpleEntityOperation
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214 getArticleOperationForName(String aName) {
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216 if (articleOperations == null) {
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217 articleOperations = new HashMap();
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218 Iterator i = localizer().adminInterface().simpleArticleOperations().iterator();
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219 while (i.hasNext()) {
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220 MirAdminInterfaceLocalizer.MirSimpleEntityOperation operation =
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221 (MirAdminInterfaceLocalizer.MirSimpleEntityOperation) i.next();
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222 articleOperations.put(operation.getName(), operation);
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226 return (MirAdminInterfaceLocalizer.MirSimpleEntityOperation) articleOperations.get(aName);
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228 catch (Throwable t) {
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229 throw new RuntimeException(t.toString());
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233 private synchronized static MirAdminInterfaceLocalizer.MirSimpleEntityOperation
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234 getCommentOperationForName(String aName) {
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236 if (commentOperations == null) {
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237 commentOperations = new HashMap();
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238 Iterator i = localizer().adminInterface().simpleCommentOperations().iterator();
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239 while (i.hasNext()) {
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240 MirAdminInterfaceLocalizer.MirSimpleEntityOperation operation =
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241 (MirAdminInterfaceLocalizer.MirSimpleEntityOperation) i.next();
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242 commentOperations.put(operation.getName(), operation);
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246 return (MirAdminInterfaceLocalizer.MirSimpleEntityOperation) commentOperations.get(aName);
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248 catch (Throwable t) {
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249 throw new RuntimeException(t.toString());
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253 public static boolean isUserLoggedIn(String anId) {
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254 synchronized (loggedInUserIds) {
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255 return loggedInUserIds.containsKey(anId);
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259 public static List getLoggedInUsers() {
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260 List result = new ArrayList();
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262 synchronized (loggedInUsers) {
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263 Iterator i = loggedInUsers.entrySet().iterator();
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265 while (i.hasNext()) {
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266 Map.Entry entry = (Map.Entry) i.next();
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268 Map item = new HashMap();
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269 item.put("name", entry.getKey());
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270 item.put("count", entry.getValue());
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278 public static BundleFactory getBundleFactory() {
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279 return bundleFactory;
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282 public static void registerLogin(String aName, String anId) {
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283 modifyLoggedInCount(aName, anId, 1);
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286 public static void registerLogout(String aName, String anId) {
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287 modifyLoggedInCount(aName, anId, -1);
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290 private static void modifyLoggedInCount(String aName, String anId, int aModifier) {
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291 synchronized (loggedInUsers) {
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292 Integer count = (Integer) loggedInUsers.get(aName);
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294 count = new Integer(0);
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296 if (count.intValue()+aModifier<=0) {
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297 loggedInUsers.remove(aName);
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300 loggedInUsers.put(aName, new Integer(count.intValue() + aModifier));
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304 synchronized (loggedInUserIds) {
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305 Integer count = (Integer) loggedInUserIds.get(anId);
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307 count = new Integer(0);
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309 if (count.intValue()+aModifier<=0) {
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310 loggedInUserIds.remove(anId);
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313 loggedInUserIds.put(anId, new Integer(count.intValue() + aModifier));
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319 * Called whenever a modifying admin action occurs. Used to log
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320 * the action, if admin activity logging is turned on,
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322 public static void logAdminUsage(EntityUsers aUser, String anObject, String aDescription) {
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324 if (config().getString("Mir.Admin.LogAdminActivity", "0").equals("1")) {
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325 String user = "unknown (" + aUser.toString() + ")";
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327 user = aUser.getFieldValue("login");
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328 adminUsageLogger.info(user + " | " + anObject + " | " + aDescription);
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331 catch (Throwable t) {
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332 logger.error("Error while logging admin usage ("+
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333 aUser.toString()+", "+aDescription+"): " +t.toString());
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338 * Reloads all reloadable configurations, such as the producer subsystem.
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340 public static void reloadConfigurations() throws MirGlobalExc, MirGlobalFailure {
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341 getProducerEngine().reloadConfiguration();
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343 LoggerEngine.reload();
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345 catch (Throwable e) {
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346 throw new MirGlobalFailure(e);
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348 getBundleFactory().reload();
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